WO2020238478A1

WO2020238478A1 - Signal processing circuit, mobile terminal and signal processing method

Info

Publication number: WO2020238478A1
Application number: PCT/CN2020/085690
Authority: WO
Inventors: 刘彬彬
Original assignee: 维沃移动通信有限公司
Priority date: 2019-05-30
Filing date: 2020-04-20
Publication date: 2020-12-03
Also published as: CN110225194B; CN110225194A

Abstract

The embodiments of the present disclosure provide a signal processing circuit, a mobile terminal and a signal processing method. The signal processing circuit comprises: N+1 antennas, at least some of the N+1 antennas being distributed on a first side and a second side adjacent thereto of the mobile terminal; a radio frequency front-end module comprising a signal transceiving end and N-1 signal receiving ends; a single-pole double-throw switch comprising a first contact, a second contact, and a third contact, the signal transceiving end being connected to the first contact, and the second contact being connected to a first antenna provided at the first side of the mobile terminal; and an N-pole N-throw switch; the first contact of the single-pole double-throw switch being connected to the second contact of the single-pole double-throw switch in cases where the mobile terminal is in a portrait state; the first contact of the single-pole double-throw switch being connected to the third contact of the single-pole double-throw switch in cases where the mobile terminal is in a landscape state.

Description

Signal processing circuit, mobile terminal and signal processing method

Cross references to related applications

This application claims the priority of Chinese Patent Application No. 201910462817.3 filed in China on May 30, 2019, the entire content of which is incorporated herein by reference.

Technical field

The present disclosure relates to the field of communication technology, and in particular to a signal processing circuit, a mobile terminal, and a signal processing method.

Background technique

With the diversification of functions of mobile terminals, multiple antennas are often provided on mobile terminals to perform signal transmission through antennas with good signal quality in different usage scenarios.

In the related art, multiple antennas are often arranged on the same side of the mobile terminal, so that after the mobile terminal switches between the horizontal screen and the vertical screen, the user’s hand holds the position of the antenna to block the antenna, thereby reducing Improve the communication quality of the mobile terminal.

From this, it can be seen that the mobile terminal in the related technology has a problem of poor communication quality, resulting in a relatively low overall competitiveness of the mobile terminal.

Summary of the invention

The embodiments of the present disclosure provide a signal processing circuit, a mobile terminal, and a signal processing method to solve the problem of poor communication quality of the mobile terminal in the related art.

In order to solve the above technical problems, the present disclosure is implemented as follows:

In the first aspect, embodiments of the present disclosure provide a signal processing circuit applied to a mobile terminal, and the signal processing circuit includes:

N+1 antennas, at least some of the N+1 antennas are distributed on the adjacent first side and second side of the mobile terminal, and the N is an integer greater than or equal to 2;

Radio frequency front-end module, including signal receiving and sending end and N-1 signal receiving end;

The single-pole double-throw switch includes a first contact, a second contact, and a third contact. The signal transceiver terminal is connected to the first contact, and the second contact is connected to the mobile terminal. The first antenna connection on the first side, where the first side is the top or bottom of the mobile terminal in a vertical screen state;

The N-pole N-throw switch includes N fourth contacts and N fifth contacts. The N fourth contacts are respectively connected to the N fifth contacts; the third contact is connected to the target Four-contact connection, the N-1 signal receiving ends are connected to N-1 fourth contacts other than the target fourth contact among the N fourth contacts, and the N fifth The contacts are respectively connected to N antennas of the N+1 antennas except for the first antenna;

Wherein, when the mobile terminal is in a vertical screen state, the first contact of the single-pole double-throw switch is in communication with the second contact;

When the mobile terminal is in a landscape state, the first contact of the single-pole double-throw switch communicates with the third contact.

In the second aspect, an embodiment of the present disclosure also provides a mobile terminal, including the signal processing circuit provided by the embodiment of the present disclosure.

In the third aspect, the embodiments of the present disclosure also provide a signal processing method, which is applied to the mobile terminal provided in the embodiments of the present disclosure, and the method includes:

Acquiring state parameters of the mobile terminal;

Controlling the single-pole double-throw switch to connect the first contact and the second contact when it is determined that the mobile terminal is in the vertical screen state according to the state parameter;

In a case where it is determined that the mobile terminal is in a landscape state according to the state parameter, the single-pole double-throw switch is controlled to communicate with the first contact and the third contact.

In the signal processing circuit of the embodiment of the present disclosure, in the vertical screen state, the signal transceiver terminal is connected to the first antenna located at the top or bottom end of the mobile terminal through a single-pole double-throw switch, which prevents the radio frequency path of the signal transceiver terminal from passing through The N-pole N-throw switch causes a large insertion loss, which improves the communication quality of the mobile terminal; in the horizontal screen state, the signal transceiver terminal is connected with other antennas through the N-pole N-throw switch, which avoids During the screen operation, the antenna is held by the user's hand, achieving the effect of improving the communication quality of the mobile terminal.

Description of the drawings

In order to more clearly describe the technical solutions of the embodiments of the present disclosure, the following will briefly introduce the accompanying drawings used in the description of the embodiments or related technologies. Obviously, the accompanying drawings in the following description are only some implementations of the present disclosure. For example, for those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative labor.

FIG. 1 is one of the structure diagrams of a signal processing circuit provided by an embodiment of the present disclosure;

FIG. 2 is a second structural diagram of a signal processing circuit provided by an embodiment of the present disclosure;

Figure 3 is a structural diagram of a mobile terminal provided by an embodiment of the present disclosure;

FIG. 4 is a working flowchart of a signal processing circuit provided by an embodiment of the present disclosure;

Fig. 5 is a flowchart of a signal processing method provided by an embodiment of the present disclosure.

Detailed ways

The technical solutions in the embodiments of the present disclosure will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present disclosure.

Please refer to FIG. 1. FIG. 1 is one of the structure diagrams of a signal processing circuit provided by an embodiment of the present disclosure. The signal processing circuit is applied to a mobile terminal. As shown in FIG. 1, the signal processing circuit includes: N+1 antennas 1. RF front-end module 2, single-pole double-throw switch 3, and N-pole N-throw switch 4, where N is an integer greater than or equal to 2.

Wherein, at least some of the N+1 antennas 1 are distributed on the adjacent first side and second side of the mobile terminal.

The radio frequency front-end module 2 includes a signal receiving terminal and N-1 signal receiving terminals.

The single-pole double-throw switch 3 includes a first contact, a second contact, and a third contact. The signal transceiver terminal is connected to the first contact, and the second contact is connected to the mobile terminal. The first antenna 11 on the first side is connected, wherein the first side is the top or bottom of the mobile terminal in the vertical screen state.

The N-pole N-throw switch 4 includes N fourth contacts and N fifth contacts. The N fourth contacts are respectively connected to the N fifth contacts; the third contact is connected to the target The fourth contact is connected. The N-1 signal receiving ends are connected to the N-1 fourth contacts except the target fourth contact among the N fourth contacts. The five contacts are respectively connected to the N antennas 12 of the N+1 antennas 1 except the first antenna 11.

Wherein, when the mobile terminal is in the vertical screen state, the first contact of the single-pole double-throw switch 3 is in communication with the second contact. When the mobile terminal is in a horizontal screen state, the first contact of the single-pole double-throw switch 3 is in communication with the third contact.

In a specific implementation, the signal transceiver end can also be referred to as an "integrated receiving and transmitting end", () For example: integrated receiving and receiving with integrated radio frequency transmission (Transmit, TX) and primary receiver (PRX) The transmitting terminal (TRX) can be used to realize the signal receiving and signal transmitting functions of the mobile terminal at the same time; the signal receiving terminal can also be called the "RX terminal", which can be used to realize the signal receiving function of the mobile terminal; The single-pole double-throw switch can be called "SP2T (Single Pole 2 Throw)"; the N-pole, N-throw switch can be called "NPNT (N Pole N Throw, N-pole N Throw)".

In addition, at least some of the N+1 antennas 1 are distributed on the adjacent first side and second side of the mobile terminal. For example, the N+1 antennas 1 may include some antennas distributed on the mobile terminal. The top and sides of the terminal; or, the N+1 antennas 1 may include some antennas distributed on the bottom and sides of the mobile terminal. It should be noted that some of the N+1 antennas 1 may also be distributed on the third side or the fourth side of the mobile terminal. For example, the three antennas are located at the top, bottom and one side of the mobile terminal. The side, etc., are not specifically limited here.

It should be noted that the N+1 antennas 1 include a first antenna 11 and N antennas 12 other than the first antenna 11. In FIG. 1, only one antenna is used to indicate N antennas 12. In practical applications, N Each antenna 12 may include any number of antennas greater than or equal to 2, such as 2 antennas, 3 antennas, and the like.

In practical applications, since the first side is the top or bottom end of the mobile terminal in the vertical screen state, the second side adjacent to the first side must be located at the mobile terminal. Side frame in portrait mode. In addition, in the vertical screen state, the user often holds the side frame of the mobile terminal with one hand, so that the signal quality of the antenna on the first side is better than that of the antenna on the second side. . In the horizontal screen state (for example, when the user is playing a mobile phone game on the mobile terminal, etc.), the user often holds both ends of the mobile terminal with both hands, so that the signal quality ratio of the antenna on the first side is located in the The signal quality of the antenna on the second side is poor.

It should be noted that the insertion loss of the single-pole double-throw switch 3 is smaller than the insertion loss of the N-pole N-throw switch 4. For example, the structure of a single pole double throw switch is simpler than that of a three pole three throw switch. According to the experiment, the insertion loss of the single-pole double-throw switch is less than or equal to 0.3dB (decibel), specifically: 0.2dB～0.3dB, and the insertion loss of the three-pole three-throw switch is greater than or equal to 1dB, specifically: 1dB～1.2 dB. It can be seen that, compared to the related art using the N-pole N-throw switch 4 to control the communication state between the signal transmission port of the RF front-end module 2 and each antenna, in this embodiment, the single-pole double-throw switch 3 is used to control the RF front-end module The connection state between the signal transmission port of 2 and each antenna can reduce the insertion loss of the radio frequency path. Using the signal processing circuit provided by the embodiment of the present disclosure can improve the signal quality of the mobile terminal.

In this embodiment, when the mobile terminal is in the vertical screen state, the first contact and the second contact of the single-pole double-throw switch 3 are controlled to communicate, so that the signal transmitting and receiving end can be connected to the second contact through the single-pole double-throw switch 3 An antenna 11 is connected to prevent the signal receiving and receiving end from being connected to the first antenna 11 through the N-pole N-throw switch 4 with large insertion loss, thereby reducing the insertion loss of the radio frequency path of the first antenna 11 and improving the radio frequency path of the signal receiving and sending end The effect of signal quality in portrait mode.

In addition, when the mobile terminal is in a landscape state, the first contact of the single-pole double-throw switch 3 is controlled to communicate with the third contact, so that the signal transceiver terminal can be connected to any one of the N antennas 12 In this way, it is ensured that the radio frequency path of the signal receiving and transmitting terminal performs radio frequency signal transmission through one of the N antennas 12 with good signal quality in the horizontal screen state, thereby achieving the effect of improving the signal quality of the mobile terminal in the horizontal screen state.

It should be noted that the N-pole N-throw switch 4 is also used to connect the N-1 signal receiving ends to the N antennas 12 respectively. And by detecting the signal quality parameters of each antenna, an antenna with the best signal quality is selected to perform the radio frequency signal reception and/or radio frequency signal transmission functions of the mobile terminal.

In addition, the first contact of the single-pole double-throw switch 3 is connected to the second contact in the signal processing circuit shown in FIG. 1. This is only an example. In specific implementation, the single-pole double-throw switch 3 can also be controlled to be connected. The first contact and the third contact. In the specific implementation, when the first contact and the second contact of the SPDT switch 3 are connected, the first contact and the third contact of the SPDT switch 3 are not connected; in the SPDT switch 3 When the first contact of the single pole double throw switch 3 is connected to the third contact, the first contact of the single pole double throw switch 3 is not connected to the second contact.

In the embodiment of the present disclosure, in the vertical screen state, the signal transceiver terminal is connected to the first antenna located at the top or bottom end of the mobile terminal through a single pole double throw switch, which prevents the radio frequency path of the signal transceiver terminal from passing through N poles and N throws. The switch causes a large insertion loss to improve the communication quality of the mobile terminal; in the horizontal screen state, the signal transceiver terminal is connected to other antennas through the N-pole and N-throw switch, avoiding the operation of the horizontal screen , The antenna is held by the user's hand, achieving the effect of improving the communication quality of the mobile terminal.

Please refer to FIG. 2, which is the second structural diagram of the signal processing circuit provided by the embodiment of the present disclosure. The signal processing circuit is applied to the mobile terminal. As shown in FIG. 2, the signal processing circuit provided by the embodiment of the present disclosure is similar to that shown in FIG. The difference between the signal processing circuit shown in FIG. 2 is that the signal processing circuit shown in FIG. 2 also includes a double-pole double-throw switch 5 and a second antenna ANT1, and the radio frequency front-end module 2 also includes a target signal receiving end: RX2.

Wherein, ANT1 is disposed on a third side of the mobile terminal, and the third side is a side of the mobile terminal opposite to the first side. For example, when the first side is the top end of the mobile terminal in the vertical screen state, the third side is the bottom end of the mobile terminal in the vertical screen state.

In addition, the double-pole double-throw switch 5 includes two sixth contacts and two seventh contacts. The two sixth contacts can communicate with the two seventh contacts respectively. The six contacts are respectively connected to the signal transceiving terminals TRX1 and RX2, and the two seventh contacts are respectively connected to the second antenna ANT1 and the first contact.

It should be noted that, in the embodiment shown in FIG. 2, the N is equal to 3. In other cases, the N can also be equal to any value of 2, 4, 5, etc., which is greater than or equal to 2, and will not be specifically described here. limited. In this embodiment, the N-pole, N-throw switch 4 is a three-pole, three-throw (3P3T) switch.

In the signal processing circuit shown in FIG. 2, the N-1 signal receiving ends of the radio frequency front-end module 2 are respectively: RX3 and RX4; the N+1 antennas are respectively: the first antenna ANT0, the third antenna ANT2, and the second antenna. Four antennas ANT3 and fifth antenna ANT4. It should be noted that as shown in Figure 2, the 3P3T switch connects the third contact with ANT4, connects RX3 with ANT3, and connects with RX4 and ANT2. This is just an example. In other cases, the 3P3T switch can connect the third contact , Any one of RX3 and RX4 is connected to ANT2, ANT3 or ANT4. In addition, as shown in Figure 2, the double-pole double-throw switch 5 connects RX2 and the first contact, and connects TRX1 and ANT1. This is only an example. In other cases, the double-pole double-throw switch 5 can connect RX2 and TRX1. Any one of them is connected to ANT1 or the first contact.

In this embodiment, the connection between TRX1 and ANT1 or the single-pole double-throw switch 3 can be controlled by the double-pole double-throw switch 5, which can realize the function of antenna switching. Wherein, when the TRX1 and ANT1 are connected, RX2 can also be controlled to be connected to the SPDT switch 3; when the TRX1 is connected with the SPDT switch 3, it can also be controlled to be connected to RX2 and ANT1. In this way, TRX1 or RX2 can be connected to ANT1 through the double-pole double-throw switch 5, avoiding the situation that it needs to be connected to ANT1 through the three-pole three-throw switch 4 with higher insertion loss, which causes the radio frequency path of TRX1 or RX2 The defect of higher insertion loss achieves the effect of improving the communication quality of the mobile terminal.

In a specific implementation, in the vertical screen state, the signal quality of ANT0 and ANT1 can be detected, and according to the detection result, it is determined to connect TRX1 with the better signal quality of ANT0 and ANT1. In the horizontal screen state, the signal quality of ANT1, ANT2, ANT3, and ANT4 can be detected, and according to the detection results, it is determined to connect TRX1 with the best signal quality of ANT1, ANT2, ANT3, and ANT4. In this way, it can be ensured that TRX1 always receives and transmits signals through an antenna with better signal quality, thereby improving the communication quality of the mobile terminal.

As an optional implementation manner, as shown in the mobile terminal shown in FIG. 3, ANT0 and ANT2 of the N+1 antennas are located on the first side of the mobile terminal, and the ANT1 and ANT4 are located on the mobile terminal. ANT3 is located on the second side of the mobile terminal;

Wherein, in the vertical screen state, two of the three fifth contacts are respectively used to connect with ANT3 and ANT4;

In the horizontal screen state, the three fifth contacts are respectively used to connect with the ANT2, ANT3, and ANT4.

In this embodiment, the first side is the top end of the mobile terminal in the portrait state, the third side is the bottom end of the mobile terminal in the portrait state, and the second side is the mobile terminal in the portrait state. The right side of the terminal.

It should be noted that the mobile terminal shown in FIG. 3 is only used as an example. In a specific implementation, the mobile terminal may also include other numbers of antennas, and the antennas on the mobile terminal may also be distributed in other locations, which is not specifically limited here. .

In practical applications, the connection relationship between TRX1, RX2, RX3 and RX4 and 5 antennas has the following four situations:

Case 1: In the vertical screen state, TRX1 is connected to ANT1 through double pole double throw switch 5, RX2 is connected to ANT0 through double pole double throw switch 5 and single pole double throw switch 3, RX3 and RX4 are connected through triple pole triple throw switch 4 respectively Connect with ANT3 and ANT4 (for example: RX3 is connected with ANT3, and RX4 is connected with ANT4; or, RX3 is connected with ANT4, and RX4 is connected with ANT3).

Case 2: In the vertical screen state, RX2 is connected to ANT0 through double pole double throw switch 5 and single pole double throw switch 3, TRX1 is connected to ANT1 through double pole double throw switch 5, RX3 and RX4 are connected through triple pole triple throw switch 4 respectively Connect with ANT3 and ANT4.

Case 3: In the horizontal screen state, TRX1 is connected to ANT1 through double pole double throw switch 5, RX2 is connected to ANT2 through double pole double throw switch 5, single pole double throw switch 3 and three pole three throw switch 4, RX3 and RX4 pass The three-pole three-throw switch 4 is connected to ANT3 and ANT4 respectively. Of course, RX2 can also be connected to ANT3 or ANT4, and any one of RX3 and RX4 can also be connected to ANT2, which is not specifically limited here.

Case 4: In the horizontal screen state, RX2 is connected to ANT1 through double pole double throw switch 5, TRX1 is connected to ANT2 through double pole double throw switch 5, single pole double throw switch 3 and three pole three throw switch 4, RX3 and RX4 pass through The three-pole three-throw switch 4 is connected to ANT3 and ANT4 respectively. Of course, TRX1 can also be connected to ANT3 or ANT4, and any one of RX3 and RX4 can also be connected to ANT2, which is not specifically limited here.

As shown in Figure 4, the following takes the mobile terminal as a mobile phone, and the control method for controlling the connection between the TRX1 on the mobile phone and the antenna in the signal processing circuit is described in detail:

Step 401: Detect the scene through the built-in sensor.

In this step, the built-in sensor may be a gravity direction sensor in the mobile phone, which can detect whether the mobile phone is in a vertical screen scene or a horizontal screen scene.

If the scene detected in step 401 is a portrait scene, then step 402 is executed; if the scene detected in step 401 is a landscape scene, then step 405 is executed.

Step 402: Enable the radio frequency channels of ANT0, ANT1, ANT3 and ANT4.

In this step, it also includes activating the single-pole double-throw switch 3 to control the communication between the first contact and the second contact through the single-pole double throw switch 3.

Step 403: Detect the received signal strength of ANT0, ANT1, ANT3 and ANT4 through a modem.

In this step, the received signal strength of each antenna is detected to determine its signal quality. In practical applications, the signal quality of the antenna, packet loss rate and other parameters can also be detected to determine the signal quality of the antenna. No specific restrictions.

Step 404: Connect TRX1 with the one with the best signal quality among ANT0 and ANT1.

In this step, the one with the best signal quality can be expressed as the one with the highest received signal strength, which is used to indicate that the antenna has the best signal reception efficiency.

It should be noted that this step also includes connecting RX3 and RX4 with ANT3 and ANT4 respectively, for example: RX3 is connected with ANT3, and RX4 is connected with ANT4; or, RX3 is connected with ANT4, and RX4 is connected with ANT3. In this way, the mobile terminal can receive signals through ANT3 and ANT4.

Step 405: Enable the radio frequency channels of ANT1, ANT2, ANT3 and ANT4.

Step 406: Detect the received signal strength of ANT1, ANT2, ANT3 and ANT4 through the modem.

Step 407: Connect TRX1 with the one with the best signal quality among ANT1, ANT2, ANT3 and ANT4.

It should be noted that this step also includes connecting RX2, RX3, and RX4 to the other three antennas of ANT1, ANT2, ANT3, and ANT4, except for TRX1. In this way, the mobile terminal can receive signals through the other three antennas.

It should be noted that, here only the control of the connection state between the TRX1 and each antenna through the signal processing circuit is taken as an example for description. In practical applications, the signal processing circuit can also be used to control RX2, RX3, and RX4, respectively. The connection status with each antenna.

In this embodiment, it is possible to detect whether the mobile terminal is in the vertical screen state or in the horizontal screen state, and control the radio frequency path that TRX1 can use accordingly. For example, in the vertical screen state, ANT2 is likely to be held by the user's hand or The radio frequency channels that can be used to control TRX1 are: ANT0, ANT1, ANT3, ANT4 and their radio frequency channels; in the horizontal screen state, ANT0 is likely to be held or blocked by the user's hand, thereby controlling the radio frequency channels that TRX1 can use It is: ANT1, ANT2, ANT3, ANT4 antenna and its radio frequency path. In this way, the mobile terminal can be in different usage scenarios, and different radio frequency channels can be enabled, which can avoid unnecessary energy waste caused by the use of antennas with poor signal quality.

The embodiment of the present disclosure also provides a mobile terminal including the signal processing circuit provided by the embodiment of the present disclosure.

In this embodiment, the above-mentioned mobile terminal may be a mobile phone, a tablet (Personal Computer), a laptop (a laptop computer), a personal digital assistant (personal digital assistant, PDA), a mobile Internet device (Mobile Internet Device, MID) Or wearable devices (Wearable Device) and so on.

The mobile terminal provided by the embodiment of the present disclosure can improve its communication quality in landscape and portrait scenarios through a signal processing circuit.

Referring to FIG. 5, an embodiment of the present disclosure also provides a signal processing method, which is applied to the mobile terminal provided in the embodiment of the present disclosure. As shown in FIG. 5, the signal processing method may include the following steps:

Step 501: Obtain state parameters of the mobile terminal.

Wherein, the state parameter is used to indicate that the mobile terminal is in a horizontal screen or a vertical screen state. In a specific implementation, the state parameter may be detected by a sensor in the mobile terminal.

Step 502: In a case where it is determined that the mobile terminal is in a vertical screen state according to the state parameter, control the single-pole double-throw switch to connect the first contact and the second contact.

Step 503: In a case where it is determined that the mobile terminal is in a landscape state according to the state parameter, control the single-pole double-throw switch to communicate with the first contact and the third contact.

The signal processing method provided by the embodiment of the present disclosure may be used in the mobile terminal provided with the signal processing circuit provided by the embodiment of the present disclosure. When it is determined that the mobile terminal is in the vertical screen state, the single-pole double-throw switch is controlled to connect the first contact and the second contact, so that in the vertical screen state, the signal transceiver terminal passes through the The single-pole double-throw switch is connected to the first antenna located at the top or bottom of the mobile terminal to avoid the problem of large insertion loss caused by the signal receiving and sending end connected to the antenna through the N-pole N-throw switch, thereby improving the mobile terminal's vertical screen state Quality of communication.

In addition, in this embodiment, when it is determined that the mobile terminal is in the landscape state, controlling the single-pole double-throw switch to connect the first contact and the third contact can be in the landscape state, Connect the signal receiving and sending end to other antennas except the first antenna through the N-pole and N-throw switch to avoid the first antenna with poor signal quality when the first antenna is held by the user's hand in the landscape state. Connect, thereby improving the communication quality of the mobile terminal in the landscape mode.

As an optional implementation manner, in the case where it is determined that the mobile terminal is in the vertical screen state according to the state parameter, the single-pole double-throw switch is controlled to connect the first contact and the second After the contact, the method further includes:

Detecting signal quality parameters of the first antenna and the second antenna respectively;

The signal transceiver terminal is connected to a first target antenna, where the first target antenna is the one with the best signal quality among the first antenna and the second antenna.

This embodiment can be applied to a mobile terminal having a signal processing circuit as shown in FIG. 4, where the first antenna is represented as ANT0, the second antenna is represented as ANT1, the third antenna is represented as ANT2, and the fourth antenna is represented as ANT3. The fifth antenna is denoted as ANT4.

In this embodiment, TRX1 is used to realize the signal transmission and reception functions of the mobile terminal. By controlling the connection of TRX1 to the first target antenna, the mobile terminal can be connected to the first target antenna with the best signal quality in the vertical screen state. Signal receiving and transmitting functions to improve the communication quality of mobile terminals.

For example: in the vertical screen state, it is detected that the antenna with the best signal quality among ANT0 and ANT1 is ANT0, you can control TRX1 to connect with ANT0, and control RX2 to connect with ANT1. In addition, you can also control RX3 and RX4 to connect with ANT3 and ANT4 respectively to receive signals through ANT3 and ANT4.

It should be noted that in different signal transmission scenarios, if you need to transmit signals through other radio frequency channels, you can also connect the actually used radio frequency channel to the first target antenna (for example: a certain signal needs to be transmitted through RX2 During the signal receiving process, RX2 can be controlled to connect with the antenna with the best signal quality among ANT0 and ANT1), which is not specifically limited here.

As an optional implementation manner, in the case where it is determined that the mobile terminal is in a landscape state according to the state parameter, the single-pole double-throw switch is controlled to communicate with the first contact and the third After the contact, the method further includes:

Detect the signal quality parameters of the second antenna, the third antenna, the fourth antenna and the fifth antenna respectively;

Connect the signal transceiver end with a second target antenna, where the second target antenna is the second antenna, the third antenna, the fourth antenna, and the fifth antenna with the best signal quality one of.

In the specific implementation, the TRX1 is used to realize the signal transmission and reception functions of the mobile terminal. By controlling the connection of the TRX1 with the second target antenna, the mobile terminal can be connected to the second target antenna with the best signal quality in the landscape mode. Signal receiving and transmitting function.

For example: in the horizontal screen state, it is detected that the antenna with the best signal quality among ANT1, ANT2, ANT3 and ANT4 is ANT1, then you can control the double-pole double-throw switch 5 to connect TRX1 and ANT1, and connect RX2 to the single-pole double throw switch 3. The single-pole double-throw switch 3 connects the first contact with the third contact, and the three-pole three-throw switch 4 connects the third contact with ANT2, and connects RX3 and RX4 with ANT3 and ANT4, respectively.

In this embodiment, by detecting the signal quality of ANT1, ANT2, ANT3, and ANT4, and selecting an antenna with the best signal quality for signal transmission, it can be ensured that the radio frequency signal of the mobile terminal is transmitted through the antenna with the best signal quality. Further improve the communication quality of mobile terminals.

In the embodiment of the present disclosure, the state parameter of the mobile terminal is acquired; in the case that the mobile terminal is determined to be in the vertical screen state according to the state parameter, the single-pole double-throw switch is controlled to communicate with the first contact and The second contact; in a case where it is determined that the mobile terminal is in a horizontal screen state according to the state parameter, the single-pole double-throw switch is controlled to connect the first contact and the third contact. It can improve the communication quality of the mobile terminal through the signal processing circuit provided in the previous invention embodiment, and achieve the same beneficial effects as the signal processing circuit. In order to avoid repetition, details are not repeated here.

The embodiments of the present disclosure are described above with reference to the accompanying drawings, but the present disclosure is not limited to the above-mentioned specific embodiments. The above-mentioned specific embodiments are only illustrative and not restrictive. Those of ordinary skill in the art are Under the enlightenment of the present disclosure, many forms can be made without departing from the purpose of the present disclosure and the scope of protection of the claims, all of which fall within the protection of the present disclosure.

Claims

A signal processing circuit applied to a mobile terminal, the signal processing circuit comprising:

N+1 antennas, at least some of the N+1 antennas are distributed on the adjacent first side and second side of the mobile terminal, and the N is an integer greater than or equal to 2;

Radio frequency front-end module, including signal receiving and sending end and N-1 signal receiving end;

The single-pole double-throw switch includes a first contact, a second contact, and a third contact. The signal transceiver terminal is connected to the first contact, and the second contact is connected to the mobile terminal. The first antenna connection on the first side, where the first side is the top or bottom of the mobile terminal in a vertical screen state;

The N-pole N-throw switch includes N fourth contacts and N fifth contacts. The N fourth contacts are respectively connected to the N fifth contacts; the third contact is connected to the target Four-contact connection, the N-1 signal receiving ends are connected to N-1 fourth contacts other than the target fourth contact among the N fourth contacts, and the N fifth The contacts are respectively connected to N antennas of the N+1 antennas except for the first antenna;

Wherein, when the mobile terminal is in a vertical screen state, the first contact of the single-pole double-throw switch is in communication with the second contact;

When the mobile terminal is in a landscape state, the first contact of the single-pole double-throw switch communicates with the third contact.
5. The signal processing circuit according to claim 1, wherein the radio frequency front-end module further comprises a target signal receiving end, and the signal processing circuit further comprises:

The second antenna is arranged on a third side of the mobile terminal, and the third side is a side of the mobile terminal opposite to the first side;

The double-pole double-throw switch includes two sixth contacts and two seventh contacts, the two sixth contacts are respectively connected to the two seventh contacts, and the two sixth contacts are respectively Connected to the signal transceiving terminal and the target signal receiving terminal, and the two seventh contacts are respectively connected to the second antenna and the first contact.
The signal processing circuit according to claim 2, wherein said N is equal to 3.
The signal processing circuit according to claim 3, wherein the first antenna and the third antenna of the N+1 antennas are located on the first side of the mobile terminal, and the second antenna and the N+ The fifth antenna of the 1 antennas is located on the third side of the mobile terminal, and the fourth antenna of the N+1 antennas is located on the second side of the mobile terminal;

Wherein, in the vertical screen state, two of the three fifth contacts are respectively used to connect with the fourth antenna and the fifth antenna;

In the horizontal screen state, the three fifth contacts are respectively used to connect with the third antenna, the fourth antenna and the fifth antenna.
A mobile terminal, comprising the signal processing circuit according to any one of claims 1 to 4.
A signal processing method applied to the mobile terminal according to claim 5, the method comprising:

Acquiring state parameters of the mobile terminal;

In a case where it is determined that the mobile terminal is in a vertical screen state according to the state parameter, controlling the single-pole double-throw switch to connect the first contact and the second contact;

When it is determined that the mobile terminal is in a landscape state according to the state parameter, the single-pole double-throw switch is controlled to communicate with the first contact and the third contact.
The signal processing method according to claim 6, wherein, in the case where it is determined that the mobile terminal is in the vertical screen state according to the state parameter, the single-pole double-throw switch is controlled to communicate with the first contact and After the second contact, the method further includes:

Detecting signal quality parameters of the first antenna and the second antenna respectively;

The signal transceiver terminal is connected to a first target antenna, where the first target antenna is the one with the best signal quality among the first antenna and the second antenna.
The signal processing method according to claim 6, wherein, in a case where it is determined that the mobile terminal is in a landscape state according to the state parameter, the single-pole double-throw switch is controlled to communicate with the first contact and After the third contact, the method further includes:

Detect the signal quality parameters of the second antenna, the third antenna, the fourth antenna and the fifth antenna respectively;

Connect the signal transceiver end with a second target antenna, where the second target antenna is the second antenna, the third antenna, the fourth antenna, and the fifth antenna with the best signal quality one of.