CN111541469A

CN111541469A - User terminal equipment

Info

Publication number: CN111541469A
Application number: CN202010334511.2A
Authority: CN
Inventors: 陈志�
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-04-24
Filing date: 2020-04-24
Publication date: 2020-08-14

Abstract

The application provides a user terminal device, which comprises a combining module, a first transmission line and a separating module. The combining module comprises a first input port, a second input port and a first output port, the first input port receives a first signal, the second input port receives a second signal, the first signal is different from the second signal, the combining module combines the first signal and the second signal into a combined signal, the first output port is electrically connected with one end of the first transmission line, the separating module comprises a third input port, a second output port and a third output port, the third input port is electrically connected with the other end of the first transmission line to receive the combined signal, the separating module separates the first signal and the second signal in the combined signal respectively and outputs the separated first signal through the second output port, the separated second signal is output through the third output port, and the separated first signal and the separated second signal are output to the same circuit board. The number of transmission lines of the user terminal equipment can be reduced.

Description

User terminal equipment

Technical Field

The present application relates to communications technologies, and in particular, to a user terminal device.

Background

A Customer Premises Equipment (CPE) is a kind of user terminal Equipment for wireless broadband access. The CPE typically converts the network signals transmitted by the base stations into Wireless Fidelity (WiFi) signals. Because the network signal that CPE can receive is the wireless network signal, can save the expense of laying the line network. Therefore, the CPE can be widely applied to occasions without a wired network, such as rural areas, towns, hospitals, factories, cells and the like. However, the number of transmission lines in the CPE is large, and these transmission lines require much labor and time to be installed.

Disclosure of Invention

The application provides a user terminal device. The user terminal equipment comprises a combining module, a first transmission line and a separating module, wherein the combining module comprises a first input port, a second input port and a first output port, the first input port is used for receiving a first signal, the second input port is used for receiving a second signal, the first signal is different from the second signal, the combining module is used for combining the first signal and the second signal into a combined signal, the first output port is electrically connected with one end of the first transmission line, the separating module comprises a third input port, a second output port and a third output port, the third input port is electrically connected with the other end of the first transmission line to receive the combined signal, the separating module is used for respectively separating the first signal and the second signal in the combined signal and outputting the separated first signal through the second output port, and outputting the separated second signal through the third output port, and outputting the separated first signal and the separated second signal to the same circuit board.

Compared with the conventional technology that one transmission line is needed for transmitting both the first signal and the second signal, the user terminal equipment of the present application can combine the first signal and the second signal into a combined signal to be transmitted through one first transmission line by adding the combining module when transmitting the first signal and the second signal, and can separate the first signal and the second signal in the combined signal transmitted by the first transmission line by adding the separating module. Therefore, the user terminal equipment can complete the transmission of the first signal and the second signal, and reduces the number of transmission lines compared with the traditional technology.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic application environment diagram of a user terminal device according to an embodiment of the present application.

Fig. 2 is a schematic perspective view of a user terminal device according to an embodiment of the present application.

Fig. 3 is a schematic diagram of a user terminal device provided in an embodiment of the present application after a housing is removed.

Fig. 4 is a circuit block diagram of a user terminal device according to an embodiment of the present application.

Fig. 5 is a schematic partial structure diagram of a user terminal device according to another embodiment of the present application.

Fig. 6 is a circuit block diagram of a user terminal device according to another embodiment of the present application.

Fig. 7 is a circuit block diagram of a user terminal device according to another embodiment of the present application.

Fig. 8 is a detailed circuit diagram of the user terminal device shown in fig. 7.

Fig. 9 is a schematic flow diagram of a first signal in the specific circuit of the user terminal shown in fig. 8.

Fig. 10 is a schematic flow diagram of a second signal in the specific circuit of the user terminal device shown in fig. 8.

Fig. 11 is a circuit block diagram of a user terminal device according to another embodiment of the present application.

Fig. 12 is a circuit block diagram of a user terminal device according to another embodiment of the present application.

Fig. 13 is a schematic diagram of a user terminal device according to another embodiment of the present application.

Fig. 14 is a schematic diagram of a user terminal device according to still another embodiment of the present application.

Fig. 15 is a circuit block diagram of a user terminal device according to another embodiment of the present application.

Detailed Description

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 of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without inventive step, are within the scope of the present disclosure.

Referring to fig. 1, fig. 1 is a schematic view of an application environment of a user terminal device according to an embodiment of the present application. The subscriber terminal 1 is a Customer Premises Equipment (CPE). The user terminal device 1 communicates with the base station 3, receives a first network signal sent by the base station 3, and converts the first network signal into a second network signal. The second network signal can be used by terminal equipment 5 such as a tablet computer, a smart phone, a notebook computer and the like. The first network signal may be, but is not limited to, a fifth generation mobile communication technology (5G) signal, and the second network signal may be, but is not limited to, a wireless fidelity (WiFi) signal. The CPE can be widely applied to rural areas, towns, hospitals, factories, cells and the like, and the first network signals which can be accessed by the CPE can be wireless network signals, so that the cost of laying a line network can be saved.

Please refer to fig. 2, fig. 3 and fig. 4. Fig. 2 is a schematic perspective view of a user terminal device according to an embodiment of the present application; fig. 3 is a schematic diagram of a user terminal device provided in an embodiment of the present application with a housing removed; fig. 4 is a circuit block diagram of a user terminal device according to an embodiment of the present application. The user terminal device 1 includes a housing 110, and the shape of the housing 110 may be, but is not limited to, a multi-sided cylindrical barrel, or a cylindrical barrel. The material of the housing 110 may be, but is not limited to, an insulating material such as plastic. It is to be understood that in other embodiments, the user terminal device 1 may not include the housing 110.

The user terminal apparatus 1 includes a first antenna 120 and a signal converter 130. The first antenna 120 and the signal converter 130 are accommodated in the housing 110. The first antenna 120 is configured to receive a first network signal, and the signal converter 130 is configured to convert the first network signal received by the first antenna 120 into a second network signal. In one embodiment, the first antenna 120 is rotatable to receive first network signals from different directions. The signal converter 130 converts the first network signal with the strongest signal among the first network signals received by the first antenna 120 from different directions into the second network signal.

The first antenna 120 may be, but is not limited to, a millimeter wave signal antenna or a terahertz signal antenna. Accordingly, the first network signal may be, but is not limited to, a millimeter wave signal or a terahertz signal. Currently, in the fifth generation mobile communication technology (5th generation wireless systems, 5G), according to the specification of the 3GPP TS 38.101 protocol, a New Radio (NR) of 5G mainly uses two sections of frequencies: FR1 frequency band and FR2 frequency band. Wherein, the frequency range of the FR1 frequency band is 450 MHz-6 GHz, also called sub-6GHz frequency band; the frequency range of the FR2 frequency band is 24.25 GHz-52.6 GHz, and belongs to the millimeter Wave (mm Wave) frequency band. The 3GPP Release 15 specification specifies that the current 5G millimeter wave frequency band includes: n257(26.5 to 29.5GHz), n258(24.25 to 27.5GHz), n261(27.5 to 28.35GHz) and n260(37 to 40 GHz). Millimeter wave or terahertz signal have transmission speed advantage such as fast, however, millimeter wave or terahertz signal are sheltered from by external object easily. When there is an object blocking between the first antenna 120 and the base station 3, the signal strength of the first network signal received by the first antenna 120 is weak, and at this time, if the first network signal with weak signal strength is converted into the second network signal, the signal strength of the obtained second network signal may also be weak.

For the user terminal device 1 placed at a certain position, the signal strength of the first network signal in each direction of the first antenna 120 is different. In the present embodiment, the first antenna 120 in the ue 1 is rotatable, and when the first antenna 120 is located in the direction in which the signal strength of the first network signal is strongest, the first antenna 120 stays in the direction in which the signal strength of the first network signal is strongest. The signal converter 130 converts the first network signal with the strongest signal received by the first antenna 120 into the second network signal. The signal converter 130 in the user terminal device 1 in this embodiment converts the first network signal with the strongest signal into the second network signal, thereby ensuring the signal strength of the second network signal and further ensuring the communication quality when communicating by using the second network signal.

In one embodiment, the first antenna 120 may be rotated manually or automatically, as long as the first antenna 120 can be rotated.

Referring to fig. 3 and 5 together, fig. 5 is a schematic diagram of a partial structure of a ue according to another embodiment of the present application. The user terminal device 1 further comprises a first circuit board 140, a second circuit board 150 and at least one transmission line 350. The first circuit board 140 is directly or indirectly fixed to the housing 110. The first circuit board 140 is also referred to as a large board, and the first circuit board 140 is provided with a conductive trace, which may be, but is not limited to, a trace for transmitting a control signal, a power signal, and the like. The second circuit board 150 is also referred to as a small board, the second circuit board 150 is electrically connected to the first antenna 120, and the second circuit board 150 and the first antenna 120 are generally carried by the rotatable member 160. The at least one transmission line 350 is electrically connected to the first circuit board 140 and the second circuit board 150 for signal transmission between the first circuit board 140 and the second circuit board 150. The transmission line 350 may be, but is not limited to, a cable (cable) line.

Referring to fig. 6, fig. 6 is a circuit block diagram of a user terminal device according to another embodiment of the present application. The user terminal device 1 includes a combining module 170, a first transmission line 180, and a separating module 190. The combining module 170 includes a first input port 170a, a second input port 170b, and a first output port 170c, the first input port 170a is configured to receive a first signal, the second input port 170b is configured to receive a second signal, the first signal is different from the second signal, and the combining module 170 is configured to combine the first signal and the second signal into a combined signal. The first output port 170c is electrically connected to one end of the first transmission line 180. The splitting module 190 includes a third input port 190a, a second output port 190b and a third output port 190c, and the third input port 190a is electrically connected to the other end of the first transmission line 180 to receive the combined signal. The separation module 190 is configured to separate a first signal and a second signal from the synthesized signal, output the separated first signal through the second output port 190b, output the separated second signal through the third output port 190c, and output the separated first signal and the separated second signal to the same circuit board.

The first transmission line 180 may be, but is not limited to, a cable (cable) line. In an embodiment, the first signal and the second signal may both be from the same circuit board or may be from different circuit boards. In this embodiment, the first signal and the second signal are from the same circuit board, and for convenience of description, the first signal and the second signal are from the first circuit board 140. The first signal and the second signal separated by the separation module 190 are output to the second circuit board 150.

In one embodiment, the combining module 170 is disposed on the first circuit board 140, and the separating module 190 may be disposed on the second circuit board 150.

The first signal is different from the second signal. In one embodiment, the first signal may comprise a direct current signal or a low frequency signal. The second signal comprises a high frequency signal. The low frequency signal is generally a signal having a frequency of 30kHz to 300kHz, and the high frequency signal is generally a signal having a frequency of 3MHz to X00GHz, where X is a positive integer. In some scenarios, the high frequency signal may also be 3MHz to 30 MHz.

Compared with the conventional technology that one transmission line is required for transmitting both the first signal and the second signal, the user terminal device 1 of the present application can combine the first signal and the second signal into a combined signal to be transmitted through one first transmission line 180 by adding the combining module 170 when transmitting the first signal and the second signal, and can separate the first signal and the second signal in the combined signal transmitted by the first transmission line 180 by adding the separating module 190. It can be seen that the ue 1 of the present application can complete the transmission of the first signal and the second signal, and reduce the number of transmission lines compared to the conventional technology.

Referring to fig. 7, fig. 7 is a circuit block diagram of a user terminal device according to another embodiment of the present application. The separation module 190 includes a first sub-separation module 191 and a second sub-separation module 192. One end of the first sub-splitting module 191 is electrically connected to the first transmission line 180 for receiving the combined signal. The first sub-separation module 191 is configured to separate a first signal in the composite signal and output the separated first signal; one end of the second sub-splitting module 192 is electrically connected to the first transmission line 180 for receiving the composite signal, and the second sub-splitting module 192 is configured to split a second signal of the composite signal and output the split second signal.

Referring to fig. 8 and 9 together, fig. 8 is a specific circuit diagram of the ue shown in fig. 7; fig. 9 is a schematic flow diagram of a first signal in the specific circuit of the user terminal shown in fig. 8. The first sub-separation module 191 includes an inductor and the second sub-separation module 192 includes a capacitor.

The first sub-separation module 191 includes an inductor, which functions to pass low frequency signals and direct current signals, thereby blocking high frequency signals. Therefore, the low frequency signal and the dc signal in the composite signal may pass through the first sub-separation module 191, and the high frequency signal may not pass through the first sub-separation module 191. In other words, the first sub-separation module 191 may separate the first signal.

Referring to fig. 8 and 10 together, fig. 10 is a schematic flow diagram of a second signal in the specific circuit of the ue shown in fig. 8. The second sub-separation module 192 includes a capacitor, which can block low frequency signals and direct current signals by high frequency signals. Therefore, the high frequency signal in the composite signal can pass through the second sub-separation module 192, and the low frequency signal and the dc signal in the composite signal cannot pass through the second sub-separation module 192. In other words, the second sub-separation module 192 may separate the second signal.

Referring to fig. 11, fig. 11 is a circuit block diagram of a user terminal device according to another embodiment of the present application. The user terminal device 1 further includes a first filtering module 220, where the first filtering module 220 is configured to receive a first original signal and filter noise in the first original signal to obtain the first signal.

In one embodiment, the first filtering module 220 includes an inductor.

Since the inductor has the function of passing the low frequency signal and the dc signal to block the high frequency, the first filtering module 220 can filter the high frequency component in the first original signal and only pass the first signal of the low frequency signal and the dc signal.

In one embodiment, the user terminal device 1 further includes a second filtering module 230, and the second filtering module 230 is configured to receive a second original signal and filter out noise in the second original signal to obtain a second signal.

In one implementation, the second filtering module 230 includes a capacitor.

In this embodiment, the user terminal device 1 includes a first filtering module 220 and a second filtering module 230, and the first filtering module 220 includes an inductor and the second filtering module 230 includes a capacitor. In other embodiments, the ue may also include only one of the first filtering module 220 and the second filtering module 230. Accordingly, the first filtering module 220 may not only be an inductor, but also the second filtering module 230 may not only be a capacitor.

With reference to the foregoing embodiments, the frequency of the first signal is a first frequency, the frequency of the second signal is a second frequency, the second frequency is greater than or equal to a preset multiple of the first frequency, and the separation module 190 separates the first signal and the second signal in the synthesized signal according to the frequency of the first frequency and the frequency of the second frequency, where the preset multiple is equal to 10.

When the second frequency is greater than or equal to the first frequency by a predetermined multiple, wherein the predetermined multiple is equal to 10, the separation module 190 can easily separate the first signal and the second signal in the synthesized signal according to the frequencies of the first signal and the second signal. When the second frequency is smaller than the preset multiple of the first frequency, the separation module 190 may not easily separate the first signal and the second signal in the synthesized signal according to the first frequency and the second frequency. When the second frequency is smaller than the preset multiple of the first frequency, the specific scheme of the separation module 190 separating the first signal and the second signal in the synthesized signal will be described in detail later.

Referring to fig. 12, fig. 12 is a circuit block diagram of a user terminal device according to another embodiment of the present application. The user terminal device 1 includes a combining module 170, a first transmission line 180, and a separating module 190. The combining module 170 includes a first input port 170a, a second input port 170b, and a first output port 170c, the first input port 170a is configured to receive a first signal, the second input port 170b is configured to receive a second signal, the first signal is different from the second signal, and the combining module 170 is configured to combine the first signal and the second signal into a combined signal. The first output port 170c is electrically connected to one end of the first transmission line 180. The splitting module 190 includes a third input port 190a, a second output port 190b and a third output port 190c, and the third input port 190a is electrically connected to the other end of the first transmission line 180 to receive the combined signal. The separation module 190 is configured to separate a first signal and a second signal from the synthesized signal, output the separated first signal through the second output port 190b, output the separated second signal through the third output port 190c, and output the separated first signal and the separated second signal to the same circuit board.

In an embodiment, the first signal and the second signal may both be from the same circuit board or may be from different circuit boards. In this embodiment, the first signal and the second signal are from the same circuit board, and for convenience of description, the first signal and the second signal are from the first circuit board 140. The first signal and the second signal separated by the separation module 190 are output to the second circuit board 150.

In this embodiment, the second frequency is smaller than the predetermined multiple of the first frequency, and when the second frequency is an odd multiple of the first frequency. The user terminal device 1 further includes an adjusting module 240, where the adjusting module 240 is configured to adjust an amplitude of an original signal to obtain the second signal, where the amplitude of the second signal is greater than the amplitude of the first signal, and the separating module 190 is configured to separate the first signal and the second signal according to the amplitude of the composite signal.

When the second frequency is smaller than the preset multiple of the first frequency, the separation module 190 may not easily separate the first signal and the second signal in the synthesized signal according to the first frequency and the second frequency. When the second frequency is an odd multiple of the first frequency, the first signal is likely to generate a harmonic signal during transmission, and the harmonic signal includes a harmonic component having the same frequency as the second frequency, so that it is less likely to separate the first signal and the second signal in the composite signal. In the embodiment, the adjusting module 240 is added to the user terminal device 1, and the adjusting module 240 increases the amplitude of the original signal, so that the amplitude of the second signal is greater than the amplitude of the first signal, and therefore, the separating module 190 may separate the first signal and the second signal according to the amplitude of the synthesized signal.

Referring to fig. 13, fig. 13 is a schematic diagram of a user terminal device according to another embodiment of the present application. In this embodiment, the user terminal device 1 further includes a first circuit board 140, a second circuit board 150, a second transmission line 250, a first connector 260, and a second connector 270. The second transmission line 250 is used for transmitting a third signal between the first circuit board 140 and the second circuit board 150, one end of the first transmission line 180 and one end of the second transmission line 250 are both electrically connected to the first circuit board 140 through the first connector 260, and the other end of the first transmission line 180 and the other end of the second transmission line 250 are both electrically connected to the second circuit board 150 through the second connector 270.

The second transmission line 250 may be, but is not limited to, a cable line. In one embodiment, the second transmission line 250 is used for transmitting the third signal generated by the first circuit board 140 to the second circuit board 150; in another embodiment, the second transmission line 250 is used for transmitting the third signal generated by the second circuit board 150 to the first circuit board 140, and is not limited in this embodiment as long as the second transmission line 250 is electrically connected to the first circuit board 140 and the second circuit board 150.

In this embodiment, compared to the first transmission line 180 and the second transmission line 250 electrically connected to the first circuit board 140 by using separate connectors, and the first transmission line 180 and the second transmission line 250 electrically connected to the second circuit board 150 by using a common first connector 260 to electrically connect one end of the first transmission line 180 and one end of the second transmission line 250 to the first circuit board 140, and the other end of the first transmission line 180 and the other end of the second transmission line 250 electrically connected to the second circuit board 150 by using a common second connector 270, the number of connectors can be reduced, and the time for connecting the first transmission line 180 and the second transmission line 250 to the first circuit board 140 and the second circuit board 150 can be saved. The second transmission line 250 may be a part of the transmission line in the user terminal apparatus 1, or may be the whole transmission line in the user terminal apparatus 1. When the second transmission line 250 is all transmission lines in the user terminal, the number of connectors in the user terminal is minimum, and is only 2, that is, only the first connector 260 and the second connector 270 are included in the user terminal device 1.

Referring to fig. 3, 14 and 15 together, fig. 14 is a schematic diagram of a user terminal device according to another embodiment of the present application; fig. 15 is a circuit block diagram of a user terminal device according to another embodiment of the present application. In the present embodiment, the housing 110 in the user terminal device 1 is removed for convenience of illustration. In this embodiment, the user terminal device 1 further includes a plurality of second antennas 210. The user terminal device 1 further comprises a plurality of second antennas 210. The plurality of second antennas 210 are configured to receive a third network signal, and the signal converter 130 is further configured to convert the third network signal into a fourth network signal. The first antenna 120 is disposed on the top of the user terminal apparatus 1 compared to the second antenna 210, and the plurality of second antennas 210 are distributed along the periphery of the user terminal apparatus 1. The user terminal device 1 may include, but is not limited to, 8 second antennas 210. Alternatively, the two second antennas 210 may form an antenna group 210a, and the two second antennas 210 located in the same position as the antenna group 210a are disposed on different substrates 211. The second antenna 210 and the first antenna 120 operate in different frequency bands. In this embodiment, two second antennas 210 are provided on one substrate 211, but in other embodiments, a plurality of second antennas 210 may be provided on one substrate 211.

Due to the uncertainty of the position of the base station 3 transmitting the third network signal, there is also an uncertainty of the direction of transmission of the third network signal. The plurality of second antennas 210 are fixed in position and are not rotatable. By distributing the second antennas 210 along the circumference of the user terminal 1, third network signals in multiple directions can be detected. And further, the accuracy of judging the third network signal with the strongest signal according to the signal strength of each acquired third network signal can be improved.

In this embodiment, the plurality of second antennas 210 in the same antenna group 210a are disposed on different substrates 211, so that the range of the third network signal that can be received by the second antennas 210 in the same antenna group 210a is wider. In other words, the J second antennas 210 in the same antenna group 210a are disposed on different substrates 211, so that the quality difference of the third network signals received by the J second antennas 210 in the same antenna group 210a is large, and when the processor in the user terminal device 1 controls the switching among the multiple second antennas 210 in the same antenna group 210a, the quality change of the third network signals is large, which is beneficial to quickly adjusting the quality of the third network signals received by the antenna group 210a by selecting different second antennas 210 in the same antenna group 210a, and is further beneficial to the user terminal device 1 working in a state where the third network signals are maximum or the signal strength is greater than a preset threshold.

The second antenna 210 may be, but is not limited to, a sub-6G antenna, and accordingly, the third network signal may be, but is not limited to, a sub-6G antenna, and the fourth network signal may be, but is not limited to, a WiFi signal.

The plurality of second antennas 210 are distributed along the circumference of the user terminal device 1, including but not limited to the plurality of second antennas 210 being directly or indirectly attached to the housing 110; alternatively, the second antenna 210 is disposed in the housing 110 of the user terminal device 1, and the second antenna 210 is not in contact with the housing 110.

In an embodiment, the number of the second antennas 210 is M, and the signal converter 130 is configured to select N second antennas 210 from the M second antennas 210 according to the strength of the third network signal received by the second antennas 210. When the number of the selected second antennas 210 is N, the sum of the signal strengths of the selected N second antennas 210 is greater than the sum of the strengths of the third network signals received by any remaining N second antennas 210 of the M second antennas 210. Where M and N are both positive integers, for example, M is equal to but not limited to 8, N is equal to but not limited to 4, and J is 2 when M is 8 and N is 4.

Although embodiments of the present application have been shown and described, it is understood that the above embodiments are illustrative and not restrictive, and that those skilled in the art may make changes, modifications, substitutions and alterations to the above embodiments without departing from the scope of the present application, and that such changes and modifications are also to be considered as within the scope of the present application.

Claims

1. A user terminal device, comprising a combining module, a first transmission line, and a separating module, wherein the combining module comprises a first input port, a second input port and a first output port, the first input port is used for receiving a first signal, the second input port is used for receiving a second signal, the first signal is different from the second signal, the combining module is used for combining the first signal and the second signal into a combined signal, the first output port is electrically connected to one end of the first transmission line, the separating module comprises a third input port, a second output port and a third output port, the third input port is electrically connected to the other end of the first transmission line to receive the combined signal, the separating module is used for separating the first signal and the second signal from the combined signal, and outputting the separated first signal through the second output port, outputting the separated second signal through the third output port, and outputting the separated first signal and the separated second signal to the same circuit board.

2. The user terminal apparatus of claim 1, wherein the splitting module comprises a first sub-splitting module and a second sub-splitting module, one end of the first sub-splitting module is electrically connected to the first transmission line for receiving the composite signal, and the first sub-splitting module is configured to split a first signal in the composite signal and output the split first signal; one end of the second sub-separation module is electrically connected with the first transmission line and used for receiving the combined signal, and the second sub-separation module is used for separating a second signal in the combined signal and outputting the separated second signal.

3. The user terminal device of claim 2, wherein the first sub-splitting module comprises an inductor and the second sub-splitting module comprises a capacitor.

4. The user terminal device of any of claims 1-3, wherein the user terminal device further comprises a first filtering module, and wherein the first filtering module is configured to receive a first original signal and filter out spurs in the first original signal to obtain the first signal.

5. The user terminal device of claim 4, wherein the first filtering module comprises an inductor.

6. The user terminal device of claim 4, wherein the user terminal device further comprises a second filtering module, the second filtering module being configured to receive a second original signal and filter out spurs in the second original signal to obtain a second signal.

7. The user terminal device of claim 6, wherein the second filtering module comprises a capacitor.

8. The ue of claim 1, wherein the frequency of the first signal is a first frequency, the frequency of the second signal is a second frequency, and the separation module separates the first signal and the second signal in the composite signal according to the frequency magnitudes of the first frequency and the second frequency when the second frequency is greater than or equal to a predetermined multiple of the first frequency, where the predetermined multiple is equal to 10.

9. The user terminal device of claim 8, wherein when the second frequency is smaller than the preset multiple of the first frequency and when the second frequency is an odd multiple of the first frequency, the user terminal device further comprises an adjusting module, the adjusting module is configured to adjust an amplitude of an original signal to obtain the second signal, wherein the amplitude of the second signal is larger than that of the first signal, and the separating module is configured to separate the first signal and the second signal according to the amplitude of the composite signal.

10. The user terminal apparatus of claim 1, further comprising a first circuit board for generating the first signal, the second signal and the third signal, a second transmission line for transmitting the third signal between the first circuit board and the second circuit board, wherein one end of the first transmission line and one end of the second transmission line are electrically connected to the first circuit board through the first connector, and the other end of the first transmission line and the other end of the second transmission line are electrically connected to the second circuit board through the second connector.