CN113922833A - Terminal, radio frequency front end and antenna detection method - Google Patents

Abstract

The present application relates to the field of communications technologies, and in particular, to a terminal, a radio frequency front end, and an antenna detection method. The application provides a terminal which comprises a baseband processing unit, a transceiver, a radio frequency front end and an internal antenna, wherein a first port of the radio frequency front end is connected with the transceiver, a second port of the radio frequency front end is used for being respectively connected with the internal antenna and an external antenna, and the external antenna is positioned on other terminals; a baseband processing unit for transmitting a first signal to the transceiver; the transceiver is used for receiving the first signal and transmitting the first signal to the radio frequency front end; the radio frequency front end is used for receiving a first signal from the transceiver, transmitting the first signal through the external antenna and receiving the first signal through the internal antenna; and the baseband processing unit is used for determining whether the working state of the external antenna for transmitting the first signal is normal or not according to the transmitting power of the first signal and the receiving power of the first signal received by the internal antenna.

Description

Terminal, radio frequency front end and antenna detection method

Technical Field

The present application relates to the field of communications technologies, and in particular, to a terminal, a radio frequency front end, and an antenna detection method.

Background

With the increasingly complex and changeable scenes of communication technology application, in engineering operation, due to the complex operation environment, the situation that signals cannot be transmitted and received often occurs in the flat panel device, and due to the shielding of a metal car body or toughened glass, the performance of transmitting and receiving signals of the built-in antenna may be reduced.

Disclosure of Invention

The application provides a terminal, a radio frequency front end and an antenna detection method, which are used for improving the transceiving performance of the terminal in different scenes, reducing the complexity of antenna state detection and switching and improving the communication performance of the terminal.

In a first aspect, the present application provides a terminal, including a baseband processing unit, a transceiver, a radio frequency front end, and an internal antenna, where a first port of the radio frequency front end is connected to the transceiver, a second port of the radio frequency front end is used to connect the internal antenna and an external antenna, respectively, and the external antenna is located at another terminal;

a baseband processing unit for transmitting a first signal to the transceiver;

the transceiver is used for receiving the first signal and transmitting the first signal to the radio frequency front end;

the radio frequency front end is used for receiving a first signal from the transceiver, transmitting the first signal through the external antenna and receiving the first signal through the internal antenna;

and the baseband processing unit is used for determining whether the working state of the external antenna for transmitting the first signal is normal or not according to the transmitting power of the first signal and the receiving power of the first signal received by the internal antenna.

Through the above manner, the terminal includes the internal antenna, and in order to improve the coverage of the signal of the terminal, the external antenna of another terminal may be connected, however, considering that the connected external antenna is disposed on another terminal, for example, outside the vehicle, and the terminal is disposed in the vehicle, when the terminal is connected to the external antenna of another terminal, the performance is not good when the terminal uses the external antenna due to the shielding of the vehicle body, or when the terminal is connected to the external antenna of another terminal, the problems such as poor contact may occur. The terminal can reasonably use the external antenna after determining that the working state of the external antenna is normal, the complexity of antenna state detection is reduced, and the use experience of the external antenna is improved.

In a possible implementation manner, the baseband processing unit is configured to send a first control signal when a working state of the external antenna for transmitting the first signal is abnormal, where the first control signal is used to instruct to switch a transmitting antenna at the radio frequency front end to the internal antenna.

Through the mode, the baseband processing unit realizes that the transmitting antenna is switched to the built-in antenna when the working state of the external antenna for transmitting the first signal is abnormal, so that the built-in antenna is used as a working antenna when the external antenna works abnormally, and the performance of receiving and transmitting signals of the terminal is ensured.

In a possible implementation manner, the baseband processing unit is further configured to determine that a working state of the external antenna for transmitting the first signal is abnormal when it is determined that the first difference is greater than or equal to a first preset threshold; the first difference is a difference between a transmission power of the first signal and a reception power of the first signal received by the internal antenna.

By the mode, whether the external antenna works normally or not is judged according to the difference value between the transmitting power of the first signal transmitted by the external antenna and the receiving power of the first signal received by the internal antenna, the efficiency of judging the antenna state is improved, and the complexity of judging the antenna state is reduced.

In a possible implementation manner, the baseband processing unit is further configured to send a second control signal when it is determined that the working state of the external antenna for transmitting the first signal is normal, where the second control signal is used to instruct to switch the transmitting antenna at the radio frequency front end to the external antenna.

By the mode, the state of the external antenna can be automatically detected, the antenna is switched, the complexity of detection and switching of the antenna state is reduced, and the communication performance of the terminal is improved.

In a possible implementation manner, the baseband processing unit is further configured to determine that a working state of the external antenna for transmitting the first signal is normal when it is determined that the first difference is smaller than a first preset threshold; the first difference is a difference between a transmission power of the first signal and a reception power of the first signal received by the internal antenna.

In a possible implementation manner, the baseband processing unit is further configured to send a second signal to the transceiver;

the transceiver is also used for receiving the second signal and sending the second signal to the radio frequency front end;

the radio frequency front end is also used for receiving a second signal from the transceiver, transmitting the second signal through the internal antenna and receiving the second signal through the external antenna;

and the baseband processing unit determines whether the working state of the external antenna for transmitting the first signal is normal or not according to the transmitting power of the second signal and the receiving power of the second signal received by the internal antenna.

By the mode, whether the built-in antenna works normally can be detected, and the antenna state detection effect is improved.

In a possible implementation manner, the radio frequency front end is further configured to receive a second control signal from the baseband processing unit, and switch a transmitting antenna of the radio frequency front end to an external antenna. The second control signal is generated when the working state that the external antenna transmits the first signal is determined to be normal and the working state that the internal antenna transmits the second signal is determined to be abnormal.

Through the mode, when the working state of the external antenna for transmitting the first signal is normal and the working state of the internal antenna for transmitting the second signal is abnormal, the baseband processing unit transmits the second control signal and controls the radio frequency channel to be switched to a channel for transmitting the signal by using the external antenna. The switched transmitting antenna is the antenna which normally works, thereby better ensuring the performance of transmitting and receiving signals of the terminal.

In a possible implementation manner, the transmission power of the first signal is determined according to the first signal input by the first port of the radio frequency front end, and the reception power is determined according to the first signal received by the built-in antenna corresponding to the second port of the radio frequency front end;

the transmitting power of the second signal is determined according to the second signal input by the first port of the radio frequency front end, and the receiving power is determined according to the second signal received by the external antenna corresponding to the second port of the radio frequency front end.

By the method, the power of the signal input by the first port of the radio frequency front end is determined as the transmitting power of the first signal, and the receiving power of the signal is determined according to the quantitative corresponding relation between the power detected by the second port of the front end and the receiving power of the signal, so that the efficiency of judging the antenna state is improved, and the complexity of judging the antenna state is reduced.

In a second aspect, the present application further provides a radio frequency front end, which is applied to a terminal, wherein a first port of the radio frequency front end is connected to a transceiver of the terminal, a second port of the radio frequency front end is used for being connected to an internal antenna and an external antenna respectively, the internal antenna is located at the terminal, and the external antenna is located at another terminal;

the radio frequency front end is used for receiving a first signal from the transceiver through the first port, transmitting the first signal to the external antenna through the second port, and receiving the first signal from the internal antenna through the second port; the transmitting power of the first signal and the receiving power of the first signal received by the built-in antenna are used for determining whether the working state of the external antenna for transmitting the first signal is normal or not.

By the above mode, the radio frequency front end is provided, and the radio frequency front end can be applied to a terminal. The first port of the radio frequency front end receives a first signal from the transceiver; the second port of the radio frequency front end sends the first signal to the external antenna and receives the first signal received by the internal antenna. In the application, the working state of the external antenna can be detected in a signal receiving and sending mode, and the baseband processing unit determines whether the working state of the external antenna for transmitting the first signal is normal or not according to the transmitting power of the first signal and the receiving power of the first signal received by the internal antenna. The terminal can reasonably use the external antenna after determining that the working state of the external antenna is normal, the complexity of antenna state detection is reduced, and the use experience of the external antenna is improved.

In a possible implementation manner, the radio frequency front end is further configured to receive a first control signal from a baseband processing unit, where the first control signal is used to instruct to switch a transmitting antenna of the radio frequency front end to the internal antenna, and the first control signal is generated when it is determined that a working state of the external antenna for transmitting the first signal is abnormal.

In one possible implementation manner, the abnormal working state of the external antenna for transmitting the first signal is determined when the first difference is determined to be greater than or equal to a first preset threshold; the first difference is a difference between a transmission power of the first signal and a reception power of the first signal received by the internal antenna.

In a possible implementation manner, the radio frequency front end is further configured to receive a second control signal from the baseband processing unit, where the second control signal is used to instruct to switch a transmitting antenna of the radio frequency front end to the external antenna, and the second control signal is determined when it is determined that a working state of the external antenna for transmitting the first signal is normal.

In one possible implementation manner, the working state of the external antenna for transmitting the first signal is determined when the first difference is determined to be smaller than the second preset threshold value; the first difference is a difference between a transmission power of the first signal and a reception power of the first signal received by the internal antenna.

In one possible implementation, the radio frequency front end is further configured to receive a second signal from the transceiver through a first port; the radio frequency front end is also used for transmitting a second signal through the internal antenna and receiving the second signal through the external antenna; the transmitting power of the second signal and the receiving power of the second signal received by the external antenna are used for determining whether the working state of the internal antenna for transmitting the second signal is normal or not.

In a possible implementation manner, the radio frequency front end is further configured to receive a second control signal from the baseband processing unit, and switch a transmitting antenna of the radio frequency front end to the external antenna. The second control signal is generated when the working state that the external antenna transmits the first signal is determined to be normal and the working state that the internal antenna transmits the second signal is determined to be abnormal.

In a possible implementation manner, the transmission power of the first signal is determined according to the first signal input by the input port of the radio frequency front end, and the reception power is determined according to the first signal received by the internal antenna corresponding to the output port of the radio frequency front end.

In a third aspect, the present application further provides an antenna detection method, which is applied to a terminal, where the terminal includes a baseband processing unit, a transceiver, a radio frequency front end, and an internal antenna, a first port of the radio frequency front end is connected to the transceiver, a second port of the radio frequency front end is connected to the internal antenna and an external antenna, and the external antenna is located at another terminal;

the base band processing unit sends a first signal to the transceiver;

the transceiver receives the first signal and sends the first signal to the radio frequency front end;

the radio frequency front end receives a first signal from the transceiver, transmits the first signal through the external antenna and receives the first signal through the internal antenna;

and the baseband processing unit is used for determining whether the working state of the external antenna for transmitting the first signal is normal or not according to the transmitting power of the first signal and the receiving power of the first signal received by the internal antenna.

Through the above manner, the present application further provides an antenna detection method, which is applied to a terminal, where the terminal includes an internal antenna, and may be connected to external antennas of other terminals in order to improve coverage of signals of the terminal. The terminal can reasonably use the external antenna after determining that the working state of the external antenna is normal, the complexity of antenna state detection is reduced, and the use experience of the external antenna is improved.

According to a possible implementation manner, when the working state of the external antenna for transmitting the first signal is abnormal, the baseband processing unit sends a first control signal, and the first control signal is used for indicating that the transmitting antenna at the radio frequency front end is switched to the internal antenna.

In a possible implementation manner, when the baseband processing unit determines that the first difference is greater than or equal to a first preset threshold, it determines that the working state of the external antenna for transmitting the first signal is abnormal; the first difference is a difference between a transmission power of the first signal and a reception power of the first signal received by the internal antenna.

When the baseband processing unit determines that the working state of the external antenna for transmitting the first signal is normal, the baseband processing unit sends a second control signal, and the second control signal is used for indicating that the transmitting antenna at the radio frequency front end is switched to the external antenna.

In a possible implementation manner, when the baseband processing unit determines that the first difference is smaller than a first preset threshold, it determines that a working state of the external antenna for transmitting the first signal is normal; the first difference is a difference between a transmission power of the first signal and a reception power of the first signal received by the internal antenna.

In one possible implementation, the baseband processing unit sends a second signal to the transceiver;

the transceiver receives the second signal and sends the second signal to the radio frequency front end;

the radio frequency front end receives a second signal from the transceiver, transmits the second signal through the internal antenna and receives the second signal through the external antenna;

and the baseband processing unit determines whether the working state of the external antenna for transmitting the first signal is normal or not according to the transmitting power of the second signal and the receiving power of the second signal received by the internal antenna.

In one possible implementation manner, the rf front end receives a first control signal from the baseband processing unit, and switches a transmitting antenna of the rf front end to an external antenna. The first control signal is generated when the working state that the external antenna transmits the first signal is determined to be normal and the working state that the internal antenna transmits the second signal is determined to be abnormal.

In a possible implementation manner, the transmission power of the first signal is determined according to the first signal input by the first port of the radio frequency front end, and the reception power is determined according to the first signal received by the built-in antenna corresponding to the second port of the radio frequency front end; the transmitting power of the second signal is determined according to the second signal input by the first port of the radio frequency front end, and the receiving power is determined according to the second signal received by the external antenna corresponding to the second port of the radio frequency front end.

In a fourth aspect, the present application provides an antenna detection apparatus comprising means for performing the method of any of the third aspect or any possible implementation manner of the third aspect. These modules/units may be implemented by hardware, or by hardware executing corresponding software.

Through the device, external antenna is reasonably used, the complexity of antenna state detection is reduced, and the use experience of external antenna is improved.

In a fifth aspect, the present application provides a communication system comprising any one of the possible terminals of the first aspect, and another terminal.

By the mode, the terminal in the communication system can reasonably use the external antenna after determining that the working state of the external antenna is normal, the complexity of antenna state detection is reduced, and the use experience of the external antenna is improved.

In a sixth aspect, the present application provides a computer storage medium storing program instructions that, when run on an antenna detection apparatus, cause the antenna detection apparatus to perform the method of the third aspect or any possible implementation manner of the third aspect.

By the mode, the working state of the external antenna is detected to be normal, the external antenna is reasonably used, the complexity of antenna state detection is reduced, and the use experience of the external antenna is improved.

In a seventh aspect, the present application provides a computer program product storing instructions that, when run on an antenna detection apparatus, cause the antenna detection apparatus to perform the method of the third aspect or any possible implementation manner of the third aspect.

By the mode, the working state of the external antenna is detected to be normal, the external antenna is reasonably used, the complexity of antenna state detection is reduced, and the use experience of the external antenna is improved.

Drawings

Fig. 1 is a schematic view of a scenario applicable to the embodiment of the present application;

fig. 2 is a schematic structural diagram of a first terminal and a second terminal according to an embodiment of the present disclosure;

fig. 3 is a schematic structural diagram of a first terminal and a second terminal according to an embodiment of the present disclosure;

fig. 4 is a schematic structural diagram of a first terminal and a second terminal according to an embodiment of the present disclosure;

fig. 5 is a schematic structural diagram of a first terminal and a second terminal according to an embodiment of the present disclosure;

fig. 6 is a schematic structural diagram of a first terminal and a second terminal according to an embodiment of the present disclosure;

fig. 7 is a schematic flowchart of an antenna detection method according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of an antenna detection apparatus according to an embodiment of the present application.

Detailed Description

As shown in fig. 1, an application scenario possible in the present application includes two terminal devices. In this embodiment, a first terminal and a second terminal are used for description.

The first terminal may be a tablet device with an internal antenna installed, the second terminal may be another terminal except the first terminal, and may be a vehicle, for example, an engineering work vehicle, and the second terminal may be an external antenna installed outside the vehicle. The flat equipment is arranged in the engineering operation vehicle, and can be selectively held by hands or placed on a socket connected with the engineering operation vehicle according to requirements. For example, the jack may be a connection port provided on a docking station of a vehicle.

In engineering operation, due to a complex operation environment, a flat panel device often cannot receive and transmit signals, and due to shielding of a metal vehicle body or toughened glass, the performance of receiving and transmitting signals of the built-in antenna may be reduced. The external antenna is installed outside the vehicle body and connected with the first terminal through the connecting port, but in the connecting process, the situation that buckling is unsuccessful may occur, so that the external antenna does not actually establish a path with the first terminal.

Therefore, it is necessary to detect whether the external antenna can normally operate, so as to select the external antenna or the internal antenna to be used when necessary.

In one of the detection methods, the state of the antenna is identified through a microprocessor or a CPU processing module, and the fastening pressure of the external antenna is detected. The method can only detect whether the connection port is successfully buckled with the first terminal, but cannot determine whether the external antenna can normally transmit and receive signals. The working state of the external antenna cannot be determined and the antenna cannot be switched.

In addition, an antenna switching instruction can be input in a user interface of the terminal, and the processor switches the antenna based on the instruction of the user, however, the method has no way to detect the state of the antenna, and the antenna which can be switched can be intelligently selected according to the state of the antenna, so that the situation that the antenna which is switched in the past cannot normally work can occur.

Based on this, the application provides a terminal, a radio frequency front end and an antenna detection method, which are used for improving the transceiving performance of the terminal in different scenes and reducing the complexity of antenna state detection and switching. The following description takes the terminal as the first terminal as an example, and when the terminal is another terminal, the example may be referred to, and details are not described herein again.

Such as the first terminal and the second terminal shown in fig. 2. The first terminal can comprise a baseband processing unit, a transceiver, a radio frequency front end and an internal antenna, wherein a first port of the radio frequency front end is connected with the transceiver, a second port of the radio frequency front end is respectively connected with the internal antenna and an external antenna, and the external antenna is located at a second terminal and connected with the first terminal through a connection port.

A baseband processing unit which transmits a first signal to the transceiver; the transceiver receives the first signal and transmits the first signal to the radio frequency front end. The first port of the radio frequency front end receives a first signal from the transceiver and sends the first signal to the second port, the second port sends the received first signal to the connection port of the second terminal, the connection port sends the first signal to the external antenna, and the external antenna transmits the first signal.

The radio frequency front end may be a 4G radio frequency front end, or may be a 5G radio frequency front end, which is not limited herein.

The built-in antenna receives a first signal sent by the external antenna and sends the first signal to a second port of the radio frequency front end, the second port sends the received first signal to the first port, and the first port sends the first signal to the transceiver.

Determining the transmitting power of a first signal transmitted by an external antenna according to the power of the first signal input by a first port of a radio frequency front end; and determining the receiving power of the first signal received by the built-in antenna according to the power of the first signal received by the second port of the radio frequency front end, and sending the receiving power to the baseband processing unit. And the baseband processing unit is used for calculating the difference value between the transmitting power of the first signal transmitted by the external antenna and the receiving power of the first signal received by the internal antenna, and determining whether the working state of the first signal transmitted by the external antenna is normal or not according to the difference value between the receiving power and the transmitting power.

The power of the first signal inputted to the rf front-end first port is denoted as P1, the received power of the first signal received by the internal antenna is denoted as P2, and the value fbrx of the level detected by the rf front-end second port has a quantitative correspondence with P2, denoted as P2 ═ f (fbrx), where f (fbrx) represents a function of fbrx. The first signal is transmitted from the first port to the external antenna and then received by the internal antenna, and the insertion loss between the links is the difference between the transmission power of the first signal transmitted by the external antenna and the receiving power of the first signal received by the internal antenna, which is denoted as X, that is, X is P1-f (fbrx).

If a first difference value between the transmitting power of the first signal transmitted by the external antenna and the receiving power of the first signal received by the internal antenna is greater than or equal to a first preset threshold value, the baseband processing unit determines that the working state of the first signal transmitted by the external antenna is abnormal.

If a first difference value between the transmitting power of the first signal transmitted by the external antenna and the receiving power of the first signal received by the internal antenna is smaller than or equal to a first preset threshold value, the baseband processing unit determines that the working state of the external antenna for transmitting the first signal is normal.

Through the above manner, the terminal includes the internal antenna, and in order to improve the coverage of the signal of the terminal, the external antenna of another terminal may be connected, however, considering that the connected external antenna is disposed on another terminal, for example, outside the vehicle, and the terminal is disposed in the vehicle, when the terminal is connected to the external antenna of another terminal, the performance is not good when the terminal uses the external antenna due to the reason of vehicle body shielding, or when the terminal is connected to the external antenna of another terminal, the problems such as poor contact may occur. The terminal can reasonably use the external antenna after determining that the working state of the external antenna is normal, the complexity of antenna state detection is reduced, and the use experience of the external antenna is improved.

Example 1

An example of determining whether the operating state of the external antenna for transmitting the first signal is normal is illustrated below. Such as the first terminal and the second terminal shown in fig. 3. The first terminal can comprise a baseband processing unit, a transceiver, a radio frequency front end and an internal antenna, wherein a first port of the radio frequency front end is connected with the transceiver, a second port of the radio frequency front end is respectively connected with the internal antenna and an external antenna, and the external antenna is located at a second terminal and connected with the first terminal through a connection port.

A baseband processing unit which transmits a first signal to the transceiver; the transceiver receives the first signal and transmits the first signal to the radio frequency front end. The first port of the radio frequency front end receives a first signal from the transceiver and sends the first signal to the second port, the second port sends the received first signal to the connection port of the second terminal, the connection port sends the first signal to the external antenna, and the external antenna transmits the first signal.

The built-in antenna receives a first signal sent by the external antenna and sends the first signal to a second port of the radio frequency front end, the second port sends the received first signal to the first port, and the first port sends the first signal to the transceiver.

The base band processing unit determines the transmitting power of a first signal transmitted by the external antenna according to the power of the first signal input by the first port of the radio frequency front end; and determining the receiving power of the first signal received by the built-in antenna according to the power of the first signal received by the second port of the radio frequency front end. And the baseband processing unit is used for determining whether the working state of the first signal transmitted by the external antenna is normal or not according to the difference value between the transmitting power of the first signal transmitted by the external antenna and the receiving power of the first signal received by the internal antenna.

If a first difference value between the transmitting power of the first signal transmitted by the external antenna and the receiving power of the first signal received by the internal antenna is greater than or equal to a first preset threshold value, the baseband processing unit determines that the working state of the first signal transmitted by the external antenna is abnormal.

When the baseband processing unit determines that the working state of the external antenna for transmitting the first signal is abnormal, the baseband processing unit may send a first control signal to the transceiver to control the transmitting antenna at the radio frequency front end to be switched to the internal antenna.

Wherein the second port may have a switching unit, and in some embodiments, the switching unit may be a switch. For example, the switching unit may be a switch, and the first control signal may be used to control the conduction of the external antenna. In another possible implementation manner, the switching unit may also be a switch, that is, the switching unit may be controlled to turn on the path corresponding to the external antenna, and a manner of turning off the first control signal by the path corresponding to the internal antenna may refer to the example in fig. 3, which is not described herein again.

For example, the first control signal may be a high level signal. Of course, the first control signal may also be a low level signal, and is not limited herein. When receiving the high level signal, the switching unit can switch the radio frequency channel to a channel for transmitting a signal by using the built-in antenna, and at the moment, the built-in antenna is in a working state.

If a first difference value between the transmitting power of the first signal transmitted by the external antenna and the receiving power of the first signal received by the internal antenna is smaller than or equal to a first preset threshold value, the baseband processing unit determines that the working state of the external antenna for transmitting the first signal is normal.

When the baseband processing unit determines that the working state of the external antenna for transmitting the first signal is normal, the baseband processing unit may send a second control signal to the transceiver to control the transmitting antenna at the radio frequency front end to be switched to the external antenna. And when the second control signal is received, switching the radio frequency channel to a channel for transmitting signals by using the external antenna.

The second control signal is a different signal from the first control signal, for example, the second control signal may be a low level signal. Of course, the second control signal may also be a high level signal, which is not limited herein. The second port may have a switching unit, wherein the switching unit may be a switch, for example, the second control signal may be used to control the conduction of the path of the internal antenna. In another possible implementation manner, the switching unit may also be a switch, for example, the second control signal may control the switching unit to turn on a path corresponding to the internal antenna, and turn off a path corresponding to the external antenna.

When the switching unit receives the low level signal, the radio frequency channel is switched to a channel for transmitting a signal by using the external antenna, and at the moment, the external antenna is in a working state.

By the mode, the state of the external antenna can be automatically detected, the antenna is switched, the complexity of detection and switching of the antenna state is reduced, and the communication performance of the terminal is improved.

Example two

Considering a case where an operation abnormality may occur in the internal antenna, an example of determining whether the operation state of the internal antenna is normal is described below. Such as the first terminal and the second terminal shown in fig. 4. The first terminal can comprise a baseband processing unit, a transceiver, a radio frequency front end and an internal antenna, wherein a first port of the radio frequency front end is connected with the transceiver, a second port of the radio frequency front end is respectively connected with the internal antenna and an external antenna, and the external antenna is located at a second terminal and connected with the first terminal through a connection port.

The baseband processing unit is used for sending a second signal to the transceiver; the transceiver receives the second signal and transmits the second signal to the radio frequency front end. A first port of the radio frequency front end receives a second signal from the transceiver and sends the second signal to a second port, and the second port sends the received second signal to the built-in antenna and the built-in antenna transmits the second signal; the external antenna receives a second signal sent by the built-in antenna and sends the second signal to a connection port of a second terminal, the connection port sends the second signal to a second port of the radio frequency front end of the first terminal, and the second port sends the second signal to a first port of the radio frequency front end. The first port then transmits the second signal to the transceiver.

Determining the transmitting power of a second signal transmitted by the built-in antenna according to the power of the second signal input by the first port of the radio frequency front end; and determining the receiving power of the second signal received by the external antenna according to the power of the second signal received by the second port of the radio frequency front end, and sending the receiving power to the baseband processing unit. And the baseband processing unit is used for calculating the difference value between the transmitting power of the second signal transmitted by the internal antenna and the receiving power of the second signal received by the external antenna, and determining whether the working state of the external antenna for transmitting the second signal is normal or not according to the difference value between the receiving power and the transmitting power.

And if a second difference value between the transmitting power of the second signal transmitted by the internal antenna and the receiving power of the second signal received by the external antenna is greater than or equal to a second preset threshold value, the baseband processing unit determines that the working state of the internal antenna for transmitting the second signal is abnormal.

When the baseband processing unit determines that the working state of the external antenna for transmitting the first signal is normal, the baseband processing unit may send a second control signal to the transceiver, and control the switching unit at the radio frequency front end to switch the transmitting antenna to the external antenna. The manner of the second control signal can be seen in the example in fig. 3, and is not described herein again.

If a second difference value between the transmitting power of the second signal transmitted by the internal antenna and the receiving power of the second signal received by the external antenna is less than or equal to a second preset threshold value, the baseband processing unit determines that the working state of the internal antenna for transmitting the second signal is normal,

when the baseband processing unit determines that the working state of the external antenna for transmitting the first signal is abnormal, the baseband processing unit may send a first control signal to the transceiver, and control the switching unit at the radio frequency front end to switch the transmitting antenna to the internal antenna. The manner of the first control signal can be seen in the example in fig. 3, and is not described herein again.

By the mode, whether the built-in antenna works normally can be detected, and the antenna state detection effect is improved.

Example three

An example of determining the operating states of the internal antenna and the external antenna is illustrated below. Such as the first terminal and the second terminal shown in fig. 5. The first terminal may include a baseband processing unit, a transceiver, a radio frequency front end, and an internal antenna, the first port of the radio frequency front end is connected to the second port, the second port is connected to the internal antenna and the external antenna, respectively, and the second terminal may include an external antenna.

The first port of the radio frequency front end may have a path switching unit, which is used to switch the radio frequency path to a path through which the external antenna sends the first signal when judging whether the external antenna works normally; and when judging whether the built-in antenna works normally, switching the radio frequency path to a path for transmitting a first signal by the built-in antenna.

And when judging whether the external antenna works normally, switching the radio frequency path into a path for transmitting a first signal by the external antenna. A baseband processing unit which transmits a first signal to the transceiver; the transceiver receives the first signal and transmits the first signal to the radio frequency front end. The first port of the radio frequency front end receives a first signal from the transceiver and sends the first signal to the second port, the second port sends the received first signal to the connection port of the second terminal, the connection port sends the first signal to the external antenna, and the external antenna transmits the first signal.

The built-in antenna receives a first signal sent by the external antenna and sends the first signal to a second port of the radio frequency front end, the second port sends the received first signal to the first port, and the first port sends the first signal to the transceiver.

Detecting the power of a first signal input by a first port of a radio frequency front end, and using the power as the transmitting power of the first signal transmitted by an external antenna; and detecting the power of the first signal received by the second port of the radio frequency front end, taking the power as the received power of the first signal received by the built-in antenna, and sending the power to the baseband processing unit. And the baseband processing unit is used for calculating the difference value between the transmitting power of the first signal transmitted by the external antenna and the receiving power of the first signal received by the internal antenna, and determining whether the working state of the first signal transmitted by the external antenna is normal or not according to the difference value between the receiving power and the transmitting power.

If a first difference value between the transmitting power of the first signal transmitted by the external antenna and the receiving power of the first signal received by the internal antenna is greater than or equal to a first preset threshold value, the baseband processing unit determines that the working state of the first signal transmitted by the external antenna is abnormal.

If a first difference value between the transmitting power of the first signal transmitted by the external antenna and the receiving power of the first signal received by the internal antenna is smaller than a first preset threshold value, the baseband processing unit determines that the working state of the first signal transmitted by the external antenna is normal.

And when judging whether the built-in antenna works normally, switching the radio frequency path to a path for transmitting a first signal by the built-in antenna. The baseband processing unit is used for sending a second signal to the transceiver; the transceiver receives the second signal and transmits the second signal to the radio frequency front end. A first port of the radio frequency front end receives a second signal from the transceiver and sends the second signal to a second port, and the second port sends the received second signal to the built-in antenna and the built-in antenna transmits the second signal; the external antenna receives a second signal sent by the built-in antenna and sends the second signal to a connection port of a second terminal, the connection port sends the second signal to a second port of the radio frequency front end of the first terminal, and the second port sends the second signal to a first port of the radio frequency front end. The first port then transmits the second signal to the transceiver.

Determining the transmitting power of a second signal transmitted by the built-in antenna according to the power of the second signal input by the first port of the radio frequency front end; and determining the receiving power of the second signal received by the external antenna according to the power of the second signal received by the second port of the radio frequency front end, and sending the receiving power to the baseband processing unit. And the baseband processing unit is used for calculating the difference value between the transmitting power of the second signal transmitted by the internal antenna and the receiving power of the second signal received by the external antenna, and determining whether the working state of the external antenna for transmitting the second signal is normal or not according to the difference value between the receiving power and the transmitting power.

In a possible implementation manner, when a second difference between the transmission power of the second signal transmitted by the internal antenna and the reception power of the second signal received by the external antenna is greater than or equal to a second preset threshold, the baseband processing unit may determine that the working state of the internal antenna for transmitting the second signal is abnormal.

In a possible implementation manner, when a second difference between the transmission power of the second signal transmitted by the internal antenna and the reception power of the second signal received by the external antenna is smaller than a second preset threshold, the baseband processing unit may determine that the working state of the internal antenna for transmitting the second signal is normal.

According to a possible implementation manner, the baseband processing unit determines that the working state of the external antenna for transmitting the first signal is normal and the working state of the internal antenna for transmitting the second signal is abnormal, and the baseband processing unit can send a second control signal to the transceiver so as to control the transmitting antenna at the radio frequency front end to be switched to the external antenna. The implementation of the second control signal may refer to the examples in fig. 3 and fig. 4, and is not described herein again.

And if the baseband processing unit determines that the working state of the external antenna for transmitting the first signal is abnormal and the working state of the internal antenna for transmitting the second signal is normal, the baseband processing unit sends a first control signal to the transceiver to control the transmitting antenna at the radio frequency front end to be switched to the internal antenna. The implementation of the first control signal may refer to the examples in fig. 3 and fig. 4, and is not described herein again.

By the mode, the state of the internal antenna and the state of the external antenna can be automatically detected, the antennas are switched, the normal antennas for receiving and sending signals are selected to work, the complexity of antenna state detection and switching is reduced, and the communication performance of the terminal is improved.

In connection with the examples of fig. 2-5, the first terminal may further include multiple antennas, and the second terminal may further include multiple antennas. For example, as shown in fig. 6 for a first terminal and a second terminal, the first terminal may include a first internal antenna and a second internal antenna, and the second terminal may include a first external antenna and a second external antenna.

The first terminal comprises a baseband processing unit, a transceiver, a radio frequency front end, a first built-in antenna and a second built-in antenna, a first port of the radio frequency front end is provided with a channel switching unit, a second port of the radio frequency front end is respectively connected with the first built-in antenna, the second built-in antenna, the first external antenna and the second external antenna, and the first external antenna and the second external antenna are located at the second terminal. The second terminal is connected with the first terminal through the connection port.

When it is determined whether the first external antenna is working normally, the path switching unit of the first port switches the radio frequency path to a path that uses the first external antenna to transmit a signal, and transmits the signal to the outside through at least one of the path 2 and the path 3, for example, the path 2 may refer to the mode of determining whether the external antenna is working normally in fig. 4 or fig. 5, and the path 3 may refer to the mode of determining whether the external antenna is working normally in fig. 3 or fig. 5, which is not described herein again.

When determining whether the first internal antenna works normally, the path switching unit of the first port switches the radio frequency path to a path for transmitting a signal using the first internal antenna, and transmits the signal to the outside through at least one of the path 1 and the path 2.

When judging whether the second external antenna works normally, the path switching unit of the first port switches the radio frequency path to a path for transmitting a signal by using the second external antenna, and transmits the signal to the outside through at least one of the path 1 and the path 4, and the specific implementation manner refers to fig. 3, fig. 4, or fig. 5 to judge whether the external antenna works normally, which is not described herein again.

When it is determined whether the second internal antenna is working normally, the path switching unit of the first port switches the radio frequency path to a path for transmitting a signal using the second internal antenna, and transmits the signal to the outside through at least one of the path 3 and the path 4, and the specific implementation manner refers to fig. 3, fig. 4, or fig. 5 to determine a manner of whether the internal antenna is working normally, which is not described herein again.

The second port has a switching unit for controlling the radio frequency path to be switched to a path for transmitting signals by using a normally working antenna, and the specific switching manner refers to the switching manner in the example of fig. 3, fig. 4 or fig. 5, which is not described herein again.

The first terminal is provided with two built-in antennas, the second terminal is provided with two external antennas, the antenna is transmitted and received mutually of signal between two liang to automated inspection built-in antenna state and external antenna state carry out the antenna and switch over, select the normal antenna of receiving and dispatching signal to work, the flexibility that has improved the antenna state and has detected has reduced the complexity that antenna state detected and switched over, has improved terminal communication performance.

Based on the above and the same concept, the present application provides an antenna detection method, which is described with reference to fig. 7 below. The antenna detection method can be applied to the first terminal of any of the above embodiments.

The first terminal comprises a baseband processing unit, a transceiver, a radio frequency front end and an internal antenna, wherein a first port of the radio frequency front end is connected with the transceiver, a second port of the radio frequency front end is respectively connected with the internal antenna and an external antenna, and the external antenna is positioned at a second terminal, as shown in fig. 7, the method comprises the following steps:

s701: the base band processing unit sends a first signal to the transceiver;

s702: the transceiver receives the first signal and sends the first signal to the radio frequency front end;

s703: the radio frequency front end receives a first signal from the transceiver and transmits the first signal through the external antenna;

s704: the radio frequency front end receives a first signal through a built-in antenna;

s705: and the baseband processing unit determines whether the working state of the external antenna for transmitting the first signal is normal or not according to the transmitting power of the first signal and the receiving power of the first signal received by the internal antenna.

In the above manner, the first terminal includes an internal antenna, and may be connected to the external antenna of the second terminal in order to improve coverage of a signal of the terminal, however, when the external antenna connected to the first terminal is disposed on the second terminal, for example, outside the vehicle, and the first terminal is disposed in the vehicle, when the first terminal is connected to the external antenna of another terminal, the first terminal may have poor performance when using the external antenna due to shielding of the vehicle body, or when the first terminal is connected to the external antenna of the second terminal, problems such as poor contact may occur. The first terminal can reasonably use the external antenna after determining that the working state of the external antenna is normal, the complexity of antenna state detection is reduced, and the use experience of the external antenna is improved.

In order to implement each function in the method provided in the embodiment of the present application, an antenna detection apparatus is further provided in the embodiment of the present application to implement the method. The apparatus may include a hardware structure and/or a software module, and the functions are implemented in the form of a hardware structure, a software module, or a hardware structure plus a software module. Whether any of the above-described functions is implemented as a hardware structure, a software module, or a hardware structure plus a software module depends upon the particular application and design constraints imposed on the technical solution.

The antenna detection apparatus provided in the embodiment of the present application may be a controller integrated with a processor, or may also be a chip or a circuit capable of executing a function corresponding to the above method, and the chip or the circuit may be disposed in a device such as a controller. Furthermore, the antenna detection apparatus provided in the embodiments of the present application can also be implemented in hardware or a combination of hardware and computer software. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the embodiments of the present application.

The antenna detection device provided in the embodiment of the present application may divide the functional modules, for example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. It should be noted that, in the embodiment of the present application, the division of the module is schematic, and is only one logic function division, and there may be another division manner in actual implementation.

Through the above manner, the present application further provides an antenna detection method, which is applied to a terminal, where the terminal includes an internal antenna, and may be connected to external antennas of other terminals in order to improve coverage of signals of the terminal. The terminal can reasonably use the external antenna after determining that the working state of the external antenna is normal, the complexity of antenna state detection is reduced, and the use experience of the external antenna is improved.

In a possible implementation manner, as shown in fig. 8, a schematic structural diagram of an antenna detection apparatus is provided for the embodiment of the present application. The apparatus may be a terminal or an apparatus in a terminal. The apparatus 800 may include: a processing module 810, a receiving module 820, and a transmitting module 830. Of course, the apparatus 800 may also include other modules, and the embodiments of the present application are not limited to these, and only the main functional modules are shown.

The processing module 810 is configured to transmit a first signal through the transmitting module 830; and the receiving module 830 receives the first signal from the external antenna, and the processing module 810 determines whether the working state of the external antenna for transmitting the first signal is normal according to the transmitting power of the first signal and the receiving power of the first signal received by the internal antenna.

In a possible implementation manner, the processing module 810 generates a first control signal when the working state of the external antenna for transmitting the first signal is abnormal, and transmits the first control signal through the transmitting module 830, where the first control signal is used to instruct to switch the transmitting antenna at the radio frequency front end to the internal antenna.

In a possible implementation manner, when determining that the first difference is greater than or equal to a first preset threshold, the processing module 810 determines that a working state of the external antenna for transmitting the first signal is abnormal; the first difference is a difference between a transmission power of the first signal and a reception power of the first signal received by the internal antenna.

In a possible implementation manner, the processing module 810 generates a second control signal when determining that the working state of the external antenna for transmitting the first signal is normal, and transmits the second control signal through the transmitting module 830, where the second control signal is used to instruct to switch the transmitting antenna at the radio frequency front end to the external antenna.

In a possible implementation manner, when determining that the first difference is smaller than the first preset threshold, the processing module 810 determines that the working state of the external antenna for transmitting the first signal is normal; the first difference is a difference between a transmission power of the first signal and a reception power of the first signal received by the internal antenna.

In a possible implementation manner, the processing module 810 transmits a second signal through the transmitting module 830, and receives the second signal from the external antenna through the receiving module 820;

the processing module 810 determines whether the working state of the external antenna for transmitting the first signal is normal according to the transmitting power of the second signal and the receiving power of the second signal received by the internal antenna.

In a possible implementation manner, the processing module 810 generates a first control signal when it is determined that the working state of the external antenna for transmitting the first signal is normal and the working state of the internal antenna for transmitting the second signal is abnormal, and switches the transmitting antenna at the front end of the radio frequency to the external antenna.

In a possible implementation manner, the transmission power of the first signal is determined according to the first signal input by the first port of the radio frequency front end, and the reception power is determined according to the first signal received by the built-in antenna corresponding to the second port of the radio frequency front end; the transmitting power of the second signal is determined according to the second signal input by the first port of the radio frequency front end, and the receiving power is determined according to the second signal received by the external antenna corresponding to the second port of the radio frequency front end.

Through the device, external antenna is reasonably used, the complexity of antenna state detection is reduced, and the use experience of external antenna is improved.

An embodiment of the present application further provides a computer-readable storage medium, which includes instructions, and when the instructions are executed on a detection apparatus, the antenna detection apparatus implements the antenna detection method shown in fig. 7.

The embodiment of the present application further provides a terminal, where the terminal includes at least one antenna detection device mentioned in the above embodiment of the present application, or includes a first terminal mentioned in the above embodiment of the present application.

An embodiment of the present application further provides a computer program product, which includes instructions, and when the instructions are executed on an antenna detection apparatus, the antenna detection apparatus implements the antenna detection method shown in fig. 7.

By the mode, the working state of the external antenna is detected to be normal, the external antenna is reasonably used, the complexity of antenna state detection is reduced, and the use experience of the external antenna is improved.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims (10)

1. A terminal is characterized by comprising a baseband processing unit, a transceiver, a radio frequency front end and an internal antenna, wherein a first port of the radio frequency front end is connected with the transceiver, a second port of the radio frequency front end is used for being respectively connected with the internal antenna and an external antenna, and the external antenna is positioned at other terminals;

the baseband processing unit is used for sending a first signal to the transceiver;

the transceiver is used for receiving the first signal and sending the first signal to the radio frequency front end;

the radio frequency front end is used for receiving a first signal from the transceiver, transmitting the first signal through the external antenna and receiving the first signal through the internal antenna;

and the baseband processing unit determines whether the working state of the external antenna for transmitting the first signal is normal or not according to the transmitting power of the first signal and the receiving power of the first signal received by the internal antenna.

2. The terminal of claim 1,

the baseband processing unit is configured to send the first control signal when a working state of the external antenna for transmitting the first signal is abnormal, where the first control signal is used to instruct to switch the transmitting antenna at the radio frequency front end to the internal antenna.

3. The terminal according to any of claims 1-2,

the baseband processing unit is further configured to determine that a working state of the external antenna for transmitting the first signal is abnormal when it is determined that the first difference is greater than or equal to a first preset threshold; the first difference is a difference between a transmission power of the first signal and a reception power of the first signal received by the internal antenna.

4. The terminal of claim 3,

the baseband processing unit is further configured to send a second control signal when it is determined that the operating state of the external antenna for transmitting the first signal is normal, where the second control signal is used to instruct to switch the transmitting antenna at the radio frequency front end to the external antenna.

5. The terminal of claim 4,

the baseband processing unit is further configured to determine that a working state of the external antenna for transmitting the first signal is normal when it is determined that the first difference is smaller than a first preset threshold; the first difference is a difference between a transmission power of the first signal and a reception power of the first signal received by the internal antenna.

6. The terminal of claim 5,

the baseband processing unit is further configured to send a second signal to the transceiver;

the transceiver is further configured to receive the second signal and send the second signal to the radio frequency front end;

the radio frequency front end is used for receiving a second signal from the transceiver, transmitting the second signal through the internal antenna and receiving the second signal through the external antenna;

and the baseband processing unit determines whether the working state of the external antenna for transmitting the first signal is normal or not according to the transmitting power of the second signal and the receiving power of the second signal received by the internal antenna.

7. The terminal of claim 6,

the radio frequency front end is also used for receiving a second control signal from the baseband processing unit and switching a transmitting antenna of the radio frequency front end into the external antenna; the second control signal is generated when the working state that the external antenna transmits the first signal is determined to be normal and the working state that the internal antenna transmits the second signal is determined to be abnormal.

8. The terminal of claim 7,

the transmitting power of the first signal is determined according to the first signal output by the transceiver, and the receiving power is determined according to the first signal received by a built-in antenna corresponding to a second port of the radio frequency front end;

the transmitting power of the second signal is determined according to the second signal output by the transceiver, and the receiving power is determined according to the second signal received by the external antenna corresponding to the second port of the radio frequency front end.

9. The radio frequency front end is applied to a terminal, a first port of the radio frequency front end is connected with a transceiver of the terminal, a second port of the radio frequency front end is used for being respectively connected with an internal antenna and an external antenna, the internal antenna is located at the terminal, and the external antenna is located at other terminals;

the radio frequency front end is used for receiving a first signal from the transceiver through the first port, transmitting the first signal to the external antenna through the second port, and receiving the first signal from the internal antenna through the second port; the transmitting power of the first signal and the receiving power of the first signal received by the built-in antenna are used for determining whether the working state of the external antenna for transmitting the first signal is normal or not.

10. The antenna detection method is characterized by being applied to a terminal, wherein the terminal comprises a baseband processing unit, a transceiver, a radio frequency front end and an internal antenna, a first port of the radio frequency front end is connected with the transceiver, a second port of the radio frequency front end is respectively connected with the internal antenna and an external antenna, and the external antenna is positioned on other terminals; the method comprises the following steps:

the baseband processing unit sends a first signal to the transceiver;

the transceiver receives the first signal and sends the first signal to the radio frequency front end;

the radio frequency front end receives a first signal from the transceiver, transmits the first signal through the external antenna and receives the first signal through the internal antenna;

and the baseband processing unit determines whether the working state of the external antenna for transmitting the first signal is normal or not according to the transmitting power of the first signal and the receiving power of the first signal received by the internal antenna.

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