CN114915355A

CN114915355A - Communication system and electronic device

Info

Publication number: CN114915355A
Application number: CN202110185636.8A
Authority: CN
Inventors: 黄菲; 车翔
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2021-02-10
Filing date: 2021-02-10
Publication date: 2022-08-16
Anticipated expiration: 2041-02-10
Also published as: CN114915355B

Abstract

The embodiment of the application discloses a communication system and electronic equipment, relates to the field of communication, and solves the problems that professional radio monitoring equipment is required to be used for radio monitoring, cost is high, and the radio monitoring is not convenient enough. The specific scheme is as follows: when the electronic equipment works in the radio monitoring state, the antenna module receives a monitoring signal. The radio frequency module and the processor receive the monitoring signal from the antenna module. When the interception signal is an interception signal sent by an eavesdropper, the electronic equipment prompts. When the electronic equipment works in the working state, the electronic equipment carries out normal communication data transceiving.

Description

Communication system and electronic device

Technical Field

The embodiment of the present application relates to the field of communications, and in particular, to a communication system and an electronic device.

Background

As users become more conscious of personal privacy, the need for radio monitoring becomes more prominent. Through radio monitoring, a user can timely find and avoid the situation that the user privacy information is obtained through electronic components such as an eavesdropper and a tracker.

Currently, to perform radio monitoring, professional radio monitoring equipment is used. This results in an increase in the cost of radio monitoring. Meanwhile, the radio monitoring equipment is not convenient enough because the radio monitoring equipment needs to be carried separately.

Disclosure of Invention

The embodiment of the application provides a communication system and electronic equipment, and solves the problems that professional radio monitoring equipment is required to be used for radio monitoring, and the radio monitoring is high in cost and not convenient enough.

In order to achieve the above purpose, the embodiment of the present application adopts the following technical solutions:

in a first aspect, an electronic device is provided, the operating status of which includes a radio monitoring status and an operating status, and the electronic device is provided with a processor, a radio frequency module, and an antenna module. The antenna module is configured to receive a listening signal when the electronic device is operating in the radio monitoring state. The radio frequency module and the processor are configured to receive the monitoring signal from the antenna module. And when the monitoring signal is a wiretap signal sent by a wiretap, the electronic equipment prompts. When the electronic equipment works in the working state, the electronic equipment is configured to carry out normal communication data transceiving.

Based on the scheme, the electronic equipment capable of performing radio monitoring is provided. In some examples, the electronic device may be a portable mobile terminal device, such as a cell phone or the like. The electronic device may be configured to support normal communications by the user, such as the transceiving of relevant data during voice and/or data communications. The electronic device provided in the embodiments of the present application may operate in a radio monitoring state in addition to the above-described normal communication function. In the radio monitoring state, the electronic device can monitor the monitoring signal through the processor, the radio frequency module and the antenna module arranged in the electronic device, and determine whether an eavesdropper exists according to the monitoring signal. It can be understood that, since the components used in the radio monitoring state, such as the processor, the radio frequency module and the antenna module, are all existing components in a normal electronic device (such as a mobile phone), the solution provided by the embodiment of the present application can provide the radio monitoring function while reusing the existing components in the current electronic device. Therefore, the user can carry out radio monitoring without using professional radio monitoring equipment, and the radio monitoring is more convenient while the cost is saved. In the embodiment of the present application, the operating state of the electronic device may also be referred to as a normal operating state. In this normal operating state, the electronic device may be used to transceive signals related to voice and/or data.

In a possible design, in the radio monitoring state, the electronic device transmits a detection sound signal, and when an eavesdropper is provided around the electronic device, the eavesdropper emits the eavesdropper, and the emission of the eavesdropper is after the electronic device transmits the detection sound signal. Based on the scheme, a possible concrete implementation of radio monitoring is provided. For example, the electronic device may emit a detection sound signal during radio monitoring, where the detection sound signal may be a preset music or a user's conversation or other sound signal. It will be appreciated that an eavesdropper will typically interact with a network device after listening to the audio signal, such as by transmitting the heard signal to the network device without interruption. Thus, the electronic device can activate the eavesdropper to transmit signals through the detection sound signals, so that the signal transmission is detected, and the purpose of radio monitoring is achieved. It should be noted that, in other embodiments of the present application, the detection sound signal may be emitted by other routes. For example, the electronic device may prompt the user to play music using another electronic device, or prompt the user to do so by himself, thereby activating the bug to work.

In one possible design, the rf module and the processor are configured to receive the listening signal from the antenna module and determine whether the listening signal is a listening signal sent by a listening device, including: the radio frequency module is configured to process the received monitoring signal to obtain characteristic information corresponding to the monitoring signal, wherein the processing of the monitoring signal is a radio frequency domain processing of the monitoring signal. The radio frequency module is configured to transmit the characteristic information to the processor, and the processor is configured to determine whether the interception signal is an interception signal sent by an eavesdropper according to the characteristic information. Based on this scheme, an example is provided in which a specific electronic device determines that a listening signal is an eavesdropping signal. In this example, the antenna module may receive a signal sent by the eavesdropper, and transmit the signal to the rf module for rf domain processing, so as to extract the characteristic information corresponding to the eavesdropping signal. The processor may obtain the signature information and determine therefrom whether the listening signal is an eavesdropping signal from an eavesdropper. It will be appreciated that when the listening signal is a listening signal, then it can be determined that there is a bug in the current environment, thereby achieving the purpose of radio monitoring.

In one possible design, the characteristic information includes at least one of: in-phase and quadrature I/Q information of the listening signal, and a received signal strength indicator RSSI of the listening signal. Based on this scheme, an example of specific feature information is provided. For example, the characterization information may include RSSI and/or I/Q signals. It is understood that, unlike the information interaction between the rf module and the processor in the normal communication process (for example, the RFIC may transmit the RSSI to the baseband), in some embodiments of the present application, the Radio Frequency Integrated Circuit (RFIC) may also transmit the I/Q information to the baseband, and is configured to determine whether the monitored signal is the wiretap signal. Of course, in some embodiments of the present application, the RFIC may also transmit the RSSI to the baseband, so that the baseband determines whether the monitored signal is suspicious or is a wiretap signal according to the RSSI.

In one possible design, the characterization information includes the RSSI. The processor is configured to determine whether the interception signal is an interception signal issued by an eavesdropper according to the characteristic information, and comprises: in the event that the RSSI is greater than a first RSSI threshold, the processor is configured to determine that the listening signal is the eavesdropping signal. Alternatively, in the event that the RSSI is greater than a second RSSI threshold for a preset duration, the processor is configured to determine that the listening signal is the tapped signal. Based on this scheme, a specific scheme for determining whether the monitored signal is a wiretap signal (or whether the monitored signal is suspicious) according to the RSSI is provided. For example, a first RSSI threshold may be preset in the electronic device, and when the RSSI of the received listening signal is greater than the first RSSI threshold, it indicates that the signal strength of the listening signal exceeds the signal strength required to be used in the normal communication process, so that the electronic device may determine that the listening signal is the listening signal or the listening signal is suspicious. In other embodiments of the present application, the electronic device may determine that the monitored signal is not a signal in normal communication (the signal strength in normal communication is not always within a certain interval stably), and thus determine that the monitored signal is the monitored signal, when the RSSI of the monitored signal indicates that the signal strength of the monitored signal is always within a certain interval (for example, greater than the preset second RSSI threshold).

In one possible design, before the processor determines whether the monitored signal is a monitored signal sent by a monitor according to the characteristic information, the processor is further configured to determine that the monitored signal is sent through a GSM network, or the processor is further configured to determine that the monitored signal is sent through the GSM network. Based on the scheme, a specific application scenario example of the scheme of determining whether the listening signal is the wiretap signal through the RSSI is provided. In this example, when the wiretap signal is a signal transmitted by a wiretap through a GSM network, the electronic device may determine whether the wiretap signal is a wiretap signal by the above scheme of designing RSSI. It is understood that the signals sent by the current eavesdroppers are sent through the GSM network, and the normal communication through the GSM network is performed at certain time intervals. Thus, in this example, the electronic device may determine whether the listening signal is an eavesdropping signal based on the difference in RSSI of the two signals (e.g., the eavesdropping signal and the normal communication signal).

In one possible design, the characteristic information includes the I/Q information. The processor is configured to determine whether the interception signal is an interception signal issued by an eavesdropper according to the characteristic information, and comprises: in the event that the I/Q information indicates that the listening signal matches the detected sound signal, the processor is configured to determine whether the listening signal is a listening signal issued by a listening device. Based on this scheme, yet another example of feature information is provided. In this example, the RFIC may send the I/Q information of the listening signal to the baseband. It is understood that the baseband can determine signal characteristics of the listening signal, such as amplitude, phase, time/frequency domain distribution characteristics, signal strength, etc. of the listening signal according to the I/Q information. Based on these signal characteristics, the electronic device can accurately determine the difference between the listening signal and the detected sound signal that activates the eavesdropper. When the signal characteristics of the listening signal match those of the detected sound signal, then it can be determined that the listening signal is a listening signal emitted by a listening device. It should be noted that the scheme may not be limited by the network system of the wiretap signal transmission.

In one possible design, the rf module includes at least one switching module, the operating state of the switching module includes a first switching state and a second switching state, and the rf module further includes a detection module. In a case that the operating state of the switching module is the first switch state, the switching module is configured to couple the antenna module and the detection module, and the electronic device operates in the radio monitoring state. In the radio monitoring state, the antenna module receives the monitoring signal, transmits the monitoring signal to the detection module through the switching module, and the detection module is configured to acquire characteristic information of the monitoring signal and transmit the characteristic information to the processor, so that the processor determines whether the monitoring signal is a wiretap signal according to the characteristic information. Based on the scheme, a specific radio frequency module is provided. In this example, the radio frequency module may include a switching module. The switching module can be used for switching the electrical connection relation between the antenna module and different components in the radio frequency module. For example, in the radio monitoring mode, the switching module may operate in a first switching state. In this scenario, the switching module may be configured to couple the antenna module and the detection module. Therefore, after the antenna module receives the monitoring signal, the monitoring signal can be transmitted to the detection module through the switching module. For example, the detection module may transmit characteristic information of the listening signal to the processor, so that the processor can determine whether the listening signal is a listening signal sent by an eavesdropper. It should be noted that, in different examples of the present application, the switching module may be implemented by different components, for example, the switching module may be a switch, and for example, the switching module may also implement its switching function by a coupler (or a bidirectional coupler).

In one possible design, the rf module includes at least one rf transmission path. The antenna module comprises at least one first antenna corresponding to the frequency of the radio frequency transmission channel. Under the condition that the working state of the switching module is the second switch state, the switching module is configured to couple the first antenna and the radio frequency transmission path, and the electronic device works in the working state. When the electronic device works in the working state, the electronic device is configured to perform normal communication data transceiving, and the method comprises the following steps: in the operating state, the rf transmission path is configured to transmit a transmission signal to the first antenna through the switching module for transmission of the transmission signal. Based on the scheme, the working mode of the switching module is further provided. In this example, the switching module may operate in the second switching state. In the second switch state, the switching module may be coupled to the rf transmission path and the corresponding antenna of the antenna module. Therefore, when the radio frequency transmission path needs to transmit a signal through the first antenna, the signal can be transmitted to the first antenna through the switching module for transmission. It is understood that the radio frequency transmission path is correspondingly arranged on the transmission link of the main set data. That is, in this example, the switching module may be disposed on the transmit path on the main set data transmission link.

In one possible design, the rf module includes at least one rf receive path. The antenna module comprises at least one second antenna corresponding to the frequency of the radio frequency receiving channel. In a case that the operating state of the switching module is the second switch state, the switching module is configured to couple the second antenna and the rf receiving path, and the electronic device operates in the operating state. In the operating state, the second antenna is configured to transmit a reception signal to the rf reception path through the switching module. Based on the scheme, another setting mode of the switching module is provided. In this example, the switching module may be disposed on the radio frequency receive path. The rf receiving path may be a rf receiving path of a main set link or a rf receiving path of a diversity link.

In one possible design, the radio frequency receive path is a diversity radio frequency receive path. Based on the scheme, another schematic of the radio frequency receiving path is provided. It will be appreciated that where a main set link and a diversity link are provided in the electronic device, then the radio frequency receive path may comprise a receive path on the main set link and a receive path on the diversity link. In this example, the switching module is disposed on the radio frequency reception path on the diversity link to ensure normal data transmission of the diversity link in a normal operating state. It can be understood that due to the introduction of the switching module, a certain transmission loss may be introduced to the corresponding link. In this example, the loss is distributed to the diversity link, so that the data transmission of the main diversity link is not affected.

In one possible design, the detection module is a radio frequency reception path in the radio frequency module, or the detection module is a measurement receiver MRX in the radio frequency module. Based on the scheme, composition illustrations of at least two detection modules are provided. In some embodiments, the detection module may be MRX. In other embodiments, the detection module may be a radio frequency receive path in a radio frequency module. It is understood that the detection module is used to extract the characteristic information of the listening signal. In this example, the function of MRX may be taken, or the function of the corresponding module on the receive chain may be multiplexed.

In one possible design, the switching module includes at least one of: the bidirectional coupler in the radio frequency module, the coupler in the radio frequency module and the change-over switch. Based on the scheme, the specific implementation of the switching module is provided. For example, the switching module may be a switch, such as a Single Pole Single Throw (SPST) switch, a Single Pole Double Throw (SPDT) switch, or the like, and the switching module may be a coupler on a link, or a bidirectional coupler.

In one possible design, the electronic device receives a first operation of a user, the first operation is configured to instruct the electronic device to perform radio monitoring, and in response to the first operation, the electronic device switches a current operating state to the radio monitoring state. Based on the scheme, a possible triggering mechanism for the electronic equipment to perform radio monitoring is provided. For example, a user may input an operation (e.g., a first operation) to the electronic device to trigger the electronic device to operate in a radio monitoring state for radio monitoring.

In one possible design, the electronic device is in a flight offline state before the electronic device operates in the radio monitoring state, or the electronic device switches the operating state to the flight state. Based on the scheme, a possible implementation scheme of the radio monitoring state is provided. In this example, the electronic device may disconnect the current communication, i.e., issue an offline command, and enter the flight mode before switching to the radio monitoring state. So as not to be affected by other communication data in the radio monitoring state.

In one possible design, the electronic device is configured with discontinuous reception, DRX, and the electronic device switches the current operating state to the radio monitoring state while in a sleep state sleep of the DRX configuration. Based on the scheme, another possible implementation scheme of the radio monitoring state is provided. In this example, the electronic device may turn on the radio monitoring function in a corresponding sleep mode in the DRX configuration configured by the base station for the terminal device. Therefore, in the sleep mode, the electronic equipment does not receive signals originally, so that the problem that the normal operation of the electronic equipment is influenced by the starting of the radio monitoring function does not occur.

In a second aspect, a communication method is provided, which is to be configured as an electronic device, an operating state of the electronic device including a radio monitoring state and an operating state, the electronic device being provided with a processor, a radio frequency module, and an antenna module; the method comprises the following steps: when the electronic equipment works in the radio monitoring state, the antenna module receives a monitoring signal; the radio frequency module and the processor receive the monitoring signal from the antenna module. And when the interception signal is an interception signal sent by an eavesdropper, the electronic equipment prompts. When the electronic equipment works in the working state, the electronic equipment carries out normal communication data transceiving.

In one possible design, in the radio monitoring state, the method further includes: this electronic equipment sends and detects the acoustic signal, works as when being provided with the eavesdropping ware around the electronic equipment, eavesdrop the signal by the eavesdropping ware is sent, the transmission of eavesdrop signal is in the electronic equipment sends after detecting the acoustic signal.

In one possible design, the rf module and the processor determine whether the listening signal is a listening signal sent by a listening device, including: the radio frequency module processes the received monitoring signal to acquire the characteristic information corresponding to the monitoring signal, wherein the processing of the monitoring signal is the radio frequency domain processing of the monitoring signal; the radio frequency module transmits the characteristic information to the processor, and the processor determines whether the monitoring signal is a wiretapping signal sent by a wiretapping device or not according to the characteristic information.

In one possible design, the characteristic information includes at least one of: in-phase and quadrature I/Q information of the listening signal, and a received signal strength of the listening signal indicates RSSI.

In one possible design, the characteristic information includes the RSSI; the processor determines whether the interception signal is an interception signal sent by an eavesdropper according to the characteristic information, and comprises the following steps: in the event the RSSI is greater than a first RSSI threshold, the processor determines that the listening signal is the eavesdropping signal; or, the processor determines that the monitored signal is the eavesdropping signal when the RSSI is greater than a second RSSI threshold within a preset time period.

In one possible design, before the processor determines whether the listening signal is a listening signal transmitted by a listening device according to the characteristic information, the method further includes: the processor determines that the monitoring signal is sent through a global system for mobile communications (GSM) network, or the processor determines that the monitoring signal is sent through the GSM network through the radio frequency module.

In one possible design, the characteristic information includes the I/Q information; the processor determines whether the interception signal is an interception signal sent by an eavesdropper according to the characteristic information, and comprises the following steps: in case the I/Q information indicates that the listening signal matches the detected sound signal, the processor determines whether the listening signal is a listening signal issued by a listener.

In one possible design, the method further includes: the electronic equipment receives a first operation of a user, the first operation instructs the electronic equipment to perform radio monitoring, and in response to the first operation, the electronic equipment switches a current working state to the radio monitoring state.

In one possible design, before the electronic device operates in the radio monitoring state, the electronic device is in a flight offline state, or the electronic device switches the operating state to the flight state;

in one possible design, the electronic device is configured with discontinuous reception, DRX, and the electronic device switches the current operating state to the radio monitoring state while in a sleep state sleep of the DRX configuration.

In a third aspect, a communication system is provided, the communication system being to be configured as an electronic device, the communication system being configured to provide a radio monitoring function of the electronic device; the communication system includes: the antenna module comprises a processor, a radio frequency module and an antenna module; the operating state of the communication system includes a radio monitoring state; in the radio monitoring state, the antenna module is configured to receive a listening signal; the radio frequency module and the processor are configured to receive the monitoring signal from the antenna module; and when the interception signal is an interception signal sent by an eavesdropper, the electronic equipment prompts.

In a possible design, in the radio monitoring state, the electronic device further transmits a detection sound signal, and when an eavesdropper is provided around the electronic device, the eavesdropper emits the eavesdropper, and the emission of the eavesdropper is after the electronic device transmits the detection sound signal.

In one possible design, the rf module and the processor are configured to receive the listening signal from the antenna module and determine whether the listening signal is a listening signal sent by a listening device, including: the radio frequency module is configured to process the received monitoring signal to obtain characteristic information corresponding to the monitoring signal, wherein the processing of the monitoring signal is radio frequency domain processing of the monitoring signal; the radio frequency module is configured to transmit the characteristic information to the processor, and the processor is configured to determine whether the interception signal is an interception signal sent by an eavesdropper according to the characteristic information.

In one possible design, the characteristic information includes the RSSI; the processor is configured to determine whether the interception signal is an interception signal issued by an eavesdropper according to the characteristic information, and comprises: in the event that the RSSI is greater than a first RSSI threshold, the processor is configured to determine that the listening signal is the tapped signal; alternatively, in the event that the RSSI is greater than a second RSSI threshold for a preset duration, the processor is configured to determine that the listening signal is the eavesdropping signal.

In one possible design, before the processor determines whether the monitored signal is a monitored signal sent by a monitor according to the characteristic information, the processor is further configured to determine that the monitored signal is sent through a GSM network, or the processor is further configured to determine that the monitored signal is sent through the GSM network.

In one possible design, the characteristic information includes the I/Q information; the processor is configured to determine whether the interception signal is an interception signal issued by an eavesdropper according to the characteristic information, and comprises: in the case where the I/Q information indicates that the listening signal matches the detection sound signal, the processor is configured to determine whether the listening signal is a listening signal issued by an eavesdropper.

In one possible design, the radio frequency module comprises at least one switching module, the working state of the switching module comprises a first switching state and a second switching state, and the radio frequency module further comprises a detection module; in a case that the operating state of the switching module is the first switch state, the switching module is configured to couple the antenna module and the detection module, and the communication system operates in the radio monitoring state; in the radio listening state, the antenna module receives the listening signal, transmits the listening signal to the detection module through the switching module, and the detection module is configured to obtain feature information of the listening signal and transmit the feature information to the processor, so that the processor determines whether the listening signal is a listening signal according to the feature information.

In one possible design, the rf module includes at least one rf transmission path, and the operating state of the communication system further includes an operating state; the antenna module comprises at least one first antenna corresponding to the frequency of the radio frequency transmission channel; under the condition that the working state of the switching module is the second switching state, the switching module is configured to couple the first antenna and the radio frequency transmission path, and the communication system works in the working state; in the working state, the radio frequency transmission path is configured to transmit a transmission signal to the first antenna through the switching module for transmission of the transmission signal.

In a possible design, the rf module includes at least one rf receiving path, and the operating state of the communication system further includes an operating state; the antenna module comprises at least one second antenna corresponding to the frequency of the radio frequency receiving channel; in a case that the operating state of the switching module is the second switch state, the switching module is configured to couple the second antenna and the rf receiving path, and the communication system operates in the operating state; in the operating state, the second antenna is configured to transmit a reception signal to the rf reception path through the switching module.

In one possible design, the radio frequency receive path is a diversity radio frequency receive path.

In one possible design, the detection module is a radio frequency receive path in the radio frequency module, or the detection module is a measurement receiver MRX in the radio frequency module.

In one possible design, the switching module includes at least one of: the bidirectional coupler in the radio frequency module, the coupler in the radio frequency module and the change-over switch.

In one possible design, the electronic device is in a flight offline state before the communication system operates in the radio monitoring state, or the electronic device switches the operating state to the flight state;

in one possible design, the electronic device is configured with discontinuous reception, DRX, and the communication system switches the current operating state to the radio monitoring state if the electronic device is in a sleep state sleep of the DRX configuration.

In a fourth aspect, a communication circuit is provided, which is to be configured as an electronic device, and includes at least one switching module, an operating state of which includes a first switching state and a second switching state, and a detection module; under the condition that the working state of the switching module is the first switch state, the switching module is configured to couple an antenna module in the electronic device and the detection module, so that the electronic device works in the radio monitoring state; in the radio listening state, the antenna module receives the listening signal, transmits the listening signal to the detection module through the switching module, and the detection module is configured to obtain feature information of the listening signal and transmit the feature information to a processor in the electronic device, so that the processor determines whether the listening signal is a listening signal according to the feature information.

In one possible design, the communication circuit includes at least one radio frequency transmission path, and the operating state of the electronic device further includes an operating state; the antenna module comprises at least one first antenna corresponding to the frequency of the radio frequency transmission channel; under the condition that the working state of the switching module is the second switch state, the switching module is configured to couple the first antenna and the radio frequency transmission path, so that the electronic device works in the working state; in the working state, the radio frequency transmission path is configured to transmit a transmission signal to the first antenna through the switching module for transmission of the transmission signal.

In one possible design, the communication circuit includes at least one radio frequency receiving channel, and the operating state of the electronic device further includes an operating state; the antenna module comprises at least one second antenna corresponding to the frequency of the radio frequency receiving channel; under the condition that the working state of the switching module is the second switch state, the switching module is configured to couple the second antenna and the radio frequency receiving path, so that the electronic device works in the working state; in the operating state, the second antenna is configured to transmit a reception signal to the rf reception path through the switching module.

In one possible design, the detection module is a radio frequency reception path in the communication circuit, or the detection module is a measurement receiver MRX in the communication circuit.

In one possible design, the switching module includes at least one of: a bidirectional coupler in the communication circuit, a switch.

In a fifth aspect, a chip system is provided, which includes an interface circuit and a processor; the interface circuit and the processor are interconnected through a line; the interface circuit is used for receiving signals from the memory and sending signals to the processor, and the signals comprise computer instructions stored in the memory; when the processor executes the computer instructions, the system-on-chip performs the communication method as described above in the second aspect and any of various possible designs.

A sixth aspect provides a computer readable storage medium comprising computer instructions which, when executed, perform the communication method of the second aspect and any of the various possible designs described above.

In a seventh aspect, there is provided a computer program product comprising instructions which, when run on a computer, enable the computer to perform the communication method according to the second aspect and any of the various possible designs as described above.

It should be understood that, in the technical solutions provided in the second aspect, the third aspect, the fourth aspect, the fifth aspect, the sixth aspect and the seventh aspect, technical features thereof may all correspond to the communication methods provided in the first aspect and possible designs thereof, so that similar beneficial effects can be achieved, and details thereof are not repeated herein.

Drawings

FIG. 1 is a schematic view of a scenario in which an eavesdropper is installed;

fig. 2 is a schematic diagram illustrating a communication system according to an embodiment of the present application;

fig. 3 is a schematic diagram illustrating a component of another communication system according to an embodiment of the present application;

fig. 4 is a schematic diagram illustrating a component of another communication system according to an embodiment of the present application;

fig. 5 is a schematic composition diagram of another communication system according to an embodiment of the present application;

fig. 6 is a schematic diagram illustrating a component of another communication system according to an embodiment of the present application;

fig. 7 is a schematic diagram illustrating a component of another communication system according to an embodiment of the present application;

fig. 8 is a schematic diagram illustrating a component of another communication system according to an embodiment of the present application;

fig. 9 is a schematic diagram illustrating a component of another communication system according to an embodiment of the present application;

fig. 10 is a schematic composition diagram of another communication system according to an embodiment of the present application;

fig. 11 is a schematic composition diagram of an electronic device according to an embodiment of the present application;

FIG. 12 is a block diagram of a software architecture according to an embodiment of the present application;

fig. 13 is a flowchart illustrating a communication method according to an embodiment of the present application;

FIG. 14 is a schematic view of an interface provided by an embodiment of the present application;

FIG. 15 is a schematic view of yet another interface provided by an embodiment of the present application;

FIG. 16 is a schematic illustration of yet another interface provided by an embodiment of the present application;

fig. 17 is a schematic diagram of radio monitoring provided in an embodiment of the present application;

FIG. 18 is a timing diagram of radio monitoring provided in an embodiment of the present application;

FIG. 19 is a timing diagram illustrating yet another embodiment of radio monitoring provided by the present application;

fig. 20 is a schematic composition diagram of a chip system according to an embodiment of the present disclosure.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. In the description of the embodiments herein, "/" means "or" unless otherwise specified, for example, a/B may mean a or B; "and/or" herein is an association relationship describing an associated object, and means that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, in the description of the embodiments of the present application, "a plurality" means two or more than two.

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

With the communication scene becoming richer and richer, some situations occur which may cause the privacy information of the user to be revealed. Exemplarily, in connection with fig. 1. The use of an eavesdropper, which is an electronic component that can eavesdrop on the user's voice information and automatically upload it, may cause privacy of the user's voice information to be revealed. As shown in fig. 1, when a user uses his/her terminal device (e.g., a mobile phone) to input voice information, or the user listens to the voice information through his/her mobile phone, an eavesdropper installed around the user may monitor the voice information and transmit the voice information through an antenna installed thereon. For example, the eavesdropper may send the monitored voice information to a network device (e.g., a base station) through a Global System for Mobile Communications (GSM). This obviously causes privacy disclosure of the user's voice information.

In order to prevent the above situation from occurring, the user can determine whether there is an eavesdropper around the user through radio monitoring, so that the eavesdropper is removed or shielded in the case that the eavesdropper is arranged around the user, thereby avoiding privacy disclosure of voice information.

For example, a user may use a separate radio monitoring device to determine whether there is an electronic device with which the user is unfamiliar transmitting and receiving radio signals by measuring the power strength and frequency of a range of surrounding radio signals. Radio monitoring is thereby achieved.

However, most current radio monitoring devices are stand-alone devices. That is, in order to perform radio monitoring, the user needs to separately purchase the radio monitoring device and carry the radio monitoring device with him for radio monitoring in a required scene. Obviously, this has the problems of high cost for performing radio monitoring and inconvenience for performing radio monitoring at any time.

In order to solve the above problem, embodiments of the present application provide a radio monitoring solution, which integrates a radio monitoring function into a terminal device (such as a mobile phone of a user). This eliminates the need for the user to separately purchase the radio monitoring equipment, thereby reducing the cost of radio monitoring. In addition, because the user generally carries the mobile phone and other terminal devices, the user can conveniently carry out radio monitoring at any time. In addition, the radio monitoring system provided in the application can reuse the existing components in the terminal equipment, so that the software/hardware cost of the terminal equipment is not increased.

The scheme provided by the embodiment of the application is described in detail below with reference to the accompanying drawings.

It should be noted that the terminal device related in the scheme provided in the embodiment of the present application may be an electronic device. For example, the electronic device may be a mobile phone, a tablet computer, a wearable device, an in-vehicle device, an Augmented Reality (AR)/Virtual Reality (VR) device, a notebook computer, an ultra-mobile personal computer (UMPC), a netbook, a Personal Digital Assistant (PDA), and other mobile terminals, and the specific type of the electronic device is not limited in this embodiment. In some implementations, the terminal device provided in this embodiment of the present application may be configured to perform signal transceiving based on 2G and/or 3G and/or 4G and/or 5G and/or 6G.

As an example, fig. 2 illustrates a schematic composition diagram of a communication system provided in an embodiment of the present application. The communication system may be provided in an electronic device for transmitting and receiving signals. The communication system may also be used to implement radio monitoring functions of the electronic device. The communication system may include a processor 210, a radio frequency module 220, and an antenna module 230.

It should be noted that, in some embodiments of the present application, the processor 210 may also be referred to as a signal processing module. The rf module 220 may also be referred to as an rf front end module, and the antenna module 230 may also be referred to as an antenna module.

The processor 210 may be used to process the signals. Illustratively, the processor 210 may include one or more processing units, such as: the processor 210 may include an Application Processor (AP), a Modem processor (Modem), a Graphics Processing Unit (GPU), an Image Signal Processor (ISP), a neural Network Processor (NPU), a controller, a Digital Signal Processor (DSP), a baseband, and/or a radio frequency integrated circuit (rfic), etc. The controller can generate an operation control signal according to the instruction operation code and the time sequence signal to complete the control of instruction fetching and instruction execution.

A memory may be provided in the processor 210 for storing instructions and data. In some embodiments, the memory in processor 210 is inclusive of cache memory. The memory may hold instructions or data that have just been used or recycled by processor 210. If the processor 210 needs to use the instruction or data again, it can be called directly from the memory. Avoiding repeated accesses reduces the latency of the processor 210, thereby increasing the efficiency of the system. In some embodiments, the memory may also be located external to the processor 210 and coupled to the processor 210.

The processor 210 may frequency modulate the signal according to a mobile communication technology or a wireless communication technology. The mobile communication technologies may include GSM, General Packet Radio Service (GPRS), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), time-division code division multiple access (TD-SCDMA), Long Term Evolution (LTE), emerging wireless communication technologies (also referred to as fifth Generation mobile communication technologies, english: 5th Generation mobile networks or 5th Generation wireless systems, 5th-Generation New Radio, 5G, or 5G NR), and so on. Wireless communication technologies may include Wireless Local Area Networks (WLANs) (e.g., wireless fidelity (Wi-Fi) networks), Bluetooth (BT), Global Navigation Satellite System (GNSS), Frequency Modulation (FM), Near Field Communication (NFC), Infrared (IR), and so on.

As an example, the processor 210 may include a Baseband (BB) processor 211 and a Radio Frequency Integrated Circuit (RFIC) 212. In the following description, the baseband processor 211 is simply referred to as a baseband. It is noted that the processor 210 may include at least one baseband 211 and at least one radio frequency integrated circuit. In some embodiments, one radio frequency integrated circuit per baseband is used to frequency modulate signals according to one or more communication techniques. For example, a first baseband and a first radio frequency integrated circuit may frequency modulate signals according to 5G technology, a second baseband and a second radio frequency integrated circuit may frequency modulate signals according to 4G technology, a third baseband and a third radio frequency integrated circuit may frequency modulate signals according to Wi-Fi technology, a fourth baseband and a fourth radio frequency integrated circuit may frequency modulate signals according to bluetooth technology, and so on. Alternatively, the first baseband and first radio frequency integrated circuit may frequency modulate the signal according to both 4G technology and 5G technology, the second baseband and second radio frequency integrated circuit may frequency modulate the signal according to Wi-Fi technology, and so on. In some embodiments, one baseband 211 may correspond to a plurality of rf integrated circuits, so as to improve the integration level.

It is understood that the frequency modulation processing performed by the processor 210 may be combined with a signal transmitting and/or receiving process (hereinafter, referred to as a transceiving process) to implement transmission of a signal by an electronic device. The following is a brief description of the processing mechanism of the processor 210 during the process of transmitting and receiving signals.

In some embodiments, signaling is taken as an example. The baseband 211 may be used to synthesize a baseband signal to be transmitted. The baseband signal may be a digital signal. For example, the baseband 211 may encode the voice or other data signal into a baseband signal (e.g., baseband code) for transmission. Baseband 211 may transmit the baseband signal to RFIC 212. The RFIC 212 may be used to process the baseband signal to form a Transmit (TX) signal. In some implementations, the RFIC 212 may also be used to pass the transmit signal to a Power Amplifier (PA) to amplify the transmit signal. The transmission signal may be an analog signal.

In other embodiments, signal reception is taken as an example. The RFIC 212 may be configured to process a Receive (RX) signal to form a baseband signal and transmit the formed baseband signal to a base. Baseband 211 may be used to decode received baseband signals. For example, the baseband 211 may decode a received baseband signal (e.g., a baseband code) into a voice or other data signal.

To enable the above functionality, in some embodiments of the present application, the baseband 211 may include components such as an encoder, a decoder, and/or a baseband controller. The encoder is used for synthesizing a baseband signal to be transmitted, and the decoder is used for decoding the received baseband signal. The baseband 211 controller may be used to control the encoder and decoder. For example, the baseband 211 controller may be used to perform scheduling of encoding and decoding, communication between the encoder and decoder, and peripheral drivers (which may enable components outside of the baseband 211 by sending enable signals to components outside of the baseband 211), among others. In some examples, the baseband controller may be a Microprocessor (MCU).

It will be appreciated that baseband 211 may process digital signals such as baseband signals, and rf integrated circuit 212 may process analog signals such as rf signals. In some embodiments, between the baseband 211 and the rf integrated circuit 212, a digital-to-analog/analog-to-digital conversion component may be disposed for digital-to-analog conversion/analog-to-digital conversion when data is transmitted between the baseband 211 and the rf integrated circuit 212. Of course, in other embodiments, the digital-to-analog/analog-to-digital conversion unit may be integrated in the baseband 211 or the rf integrated circuit 212.

It is noted that in some embodiments, baseband 211 and RFIC 212 may be integrated with other components of processor 210 in a single integrated circuit. In some embodiments, baseband 211 and RFIC 212 may each be a separate device from processor 210. In some embodiments, a baseband 211 and an RFIC 212 may be integrated into a device separate from the processor 210. In some embodiments, the baseband 211 is integrated with the RFIC 212 in a different integrated circuit, and the baseband 211 is packaged with the RFIC 212, for example in a System on a Chip (SOC).

In the communication system shown in fig. 2, the antenna module 230 may be used to convert between analog signals and electromagnetic waves. For example, when transmitting a signal, the antenna module 230 may receive a transmission signal from the transmitting module and transmit the transmission signal in the form of an electromagnetic wave. For another example, when performing signal reception, the antenna module 230 may receive an electromagnetic wave with a corresponding frequency in space, and convert the electromagnetic wave into an analog signal (e.g., a received signal) and transmit the analog signal to the receiving module 222.

Illustratively, multiple antennas or groups of antennas (a group of antennas includes more than two antennas) may be included in the antenna module 230, and each antenna or group of antennas may be used to cover a single or multiple communication bands. Any antenna 232 of the plurality of antennas 232 may be a single frequency or a multiple frequency antenna 232. In some implementations, the plurality of antennas 232 may include an array antenna 232 comprised of a plurality of antenna 232 elements. In a specific implementation, the radiator of any one antenna 232 of the plurality of antennas 232 may include, but is not limited to, a metal frame and/or a metal rear case of the electronic device, and/or a metal component of another device (e.g., a camera, etc.), and the like having a conductive property. The radiator of any antenna 232 of the plurality of antennas 232 may also include components in the form of a Flexible Printed Circuit (FPC) antenna, and/or a stamped (stabilizing) antenna, and/or a Laser-Direct-structuring (LDS) antenna, among others. In some implementations, any one antenna 232 of the plurality of antennas 232 may also be an on-chip antenna. In other implementations, the antenna module 230 can be further divided into a high-frequency antenna group and a low-frequency antenna group according to the working frequency band of each antenna 232. The high-frequency antenna group may include one or more antennas 232 with a higher operating frequency, for example, the operating frequency band of these antennas 232 may be higher than 1.5 GHz. Correspondingly, the low frequency antenna group may include one or more antennas 232 with a lower operating frequency, for example, the operating frequency band of these antennas 232 may be between 699MHz and 960 MHz.

In addition, it should be noted that in some embodiments, the antennas 232 in the antenna module 230 may include a main set antenna and a diversity antenna. The main set antennas may be used for transmitting and receiving signals. Diversity antennas may be used for reception of signals. Thereby achieving the effect of enhancing the downlink communication.

As shown in fig. 2, the antenna module 230 may further include an antenna circuit 231. The antenna circuit 231 may also be referred to as a matching circuit. One or more capacitors, and/or inductors, and/or resistors may be included in the matching circuit. Tunable devices, such as tunable inductors, and/or tunable capacitors, may also be included in the matching circuit. The matching circuit may be used to adjust the impedance of the antenna 232. The matching circuit can be tuned to bring the impedance of the antenna 232 as close as possible to the impedance of the rf signal (e.g., 50 ohms, or 75 ohms) in the operating frequency range. Therefore, when the radio frequency signal is transmitted to the antenna 232, the loss or reflection at the port of the antenna 232 is reduced, and the radiation efficiency of the communication system is improved. When the antenna module 230 includes a plurality of antennas 232, each antenna 232 may correspond to one antenna circuit 231. In some embodiments, different antennas 232 may also partially or entirely share one antenna circuit 231.

The communication system provided in the embodiment of the present application may further include a radio frequency module 220. For example, the rf module 220 may be disposed between the processor 210 and the antenna module 230, and configured to perform radio frequency domain (or referred to as analog domain) processing on the signal, so as to cooperate with the antenna module 230 and the processor 210 to implement transceiving of the signal.

For example, with continued reference to fig. 2, the rf module 220 may include a transmitting module 221 and a receiving module 222. The transmitting module 221 may receive a transmitting signal from the processor 210 (e.g., RFIC 212) during signal transmission. The transmitting module 221 may load the transmission signal on a carrier signal having a corresponding frequency band to form an analog transmission signal in a radio frequency domain corresponding to the transmission signal. The transmitting module 221 may also transmit the analog transmitting signal to the antenna module 230, so as to implement transmission of the analog transmitting signal.

Correspondingly, the receiving module 222 may analyze the analog receiving signal from the antenna module 230 during the signal receiving process to obtain a corresponding receiving signal. The receive module 222 may also send the receive signal to the processor 210 so that the processor 210 (e.g., RFIC 212) may obtain a corresponding baseband signal from the receive signal. Thereby realizing reception processing of the signal.

The radio frequency module 220 may further include a frequency selection switch 223. The frequency selection switch 223 may be disposed between the transmitting module 221 and the antenna module 230, or the frequency selection switch 223 may be disposed between the receiving module 222 and the antenna module 230. The frequency selection switch 223 can be used to realize frequency selection in the process of transceiving signals. For example, a signaling process is taken as an example. The frequency selection switch 223 can select the frequency of the transmission signal transmitted by the transmission module to filter out the analog signal outside the signal transmission frequency band. Therefore, signals except for effective carrier frequency are filtered, and the effect of improving the quality of the transmitted signals is achieved. Correspondingly, taking the signal receiving process as an example, the frequency selective switch 223 can perform frequency selection on the received signal from the antenna module 230 to filter out analog signals outside the signal transmission frequency band. In this way, signals other than the effective carrier frequency are filtered, so that the amount of invalid data including noise signals in the received signal transmitted to the receiving module 222 is reduced, and the effect of improving the quality of the received signal is achieved. In some embodiments of the present application, the function of the frequency selective switch 223 may be implemented by a duplexer and/or a combination of a filter and a switch.

In some embodiments of the present example, a coupler 224 may be further disposed between the frequency selective switch 223 and the antenna module 230. The coupler 224 may be configured to transmit a portion of the transmission signal to the detection module 225 during signal transmission, so that the detection module 225 performs power control adjustment on the transmission signal according to the received transmission signal. For example, the detection module 225 is taken as a Measurement Receiver (MRX) for example. MRX may monitor the transmit signal from coupler 224 to determine whether the transmit power of the current transmit signal meets the interaction requirements with a network device, such as a base station. In some embodiments, when the MRX determines that the transmission power of the current transmission signal does not satisfy the above interaction requirement, the processor 210 (such as the baseband 211) may be instructed to adjust the transmission power of the current transmission signal so as to enable normal data communication with the base station.

It should be noted that, in the description shown in fig. 2, the detection module 225 (for example, MRX) is disposed in the rf module 220 as an example. In other embodiments of the present application, the detection module 225 may also be integrated in the processor 210 to implement the corresponding functions.

In order to implement the function of the above-mentioned multiplexing MRX for radio monitoring, a switching module 226 may also be provided in the communication system provided in the embodiment of the present application. The switching module 226 can be used to transmit the signal received by the antenna module 230 to the detecting module 225, so that the detecting module 225 can perform data detection such as parsing according to the received signal, thereby determining whether the signal is a signal sent by an eavesdropper. When the detection module 225 determines that the signal is a signal emitted by an eavesdropper, it can determine that an eavesdropper exists in the current environment. The electronic device provided with the communication system may alert the user for radio monitoring purposes. The process of determining the bug by the detection module 225 according to the signal will be described in detail in the following method embodiments, and will not be described herein again.

In the communication system provided in the embodiment of the present application, the switching module 226 may include one or more switches. The one or more switches may be provided independently, or may be partially or wholly integrated into one component, or may be integrated with other components to realize the switching function. For example, in some embodiments, the switching module 226 may be a Single Pole Double Throw (SPDT) switch (hereinafter, the SPDT switch is referred to as SPDT). During signal transceiving, the SPDT may be used to conduct the coupler 224 and the antenna module 230 shown in fig. 2, so that the signal may be transferred from the transmitting module to the antenna module 230, or the signal may be transferred from the antenna module 230 to the receiving module 222. During radio monitoring, the SPDT may be used to turn on the detection module 225 and the antenna module 230 shown in fig. 2, so that the signal received by the antenna module 230 can be transmitted to the detection module 225 for corresponding data detection. In other embodiments, the switching module 226 may also implement its switching function through two or more Single Pole Single Throw (SPST) switches. In other embodiments, the switching module 226 may also implement its switching function through other types of components with switching functions.

In some embodiments, a signal selection module 227 may be provided in front of the detection module 225 due to port number limitations of the MRX. The signal selection module 227 may be used to selectively transmit signals from the coupler 224 and the switching module 226. For example, the signal selection module 227 may transmit the signal from the coupler 224 to the detection module 225 when the communication system shown in fig. 2 is in a normal operation state, so that the detection module 225 determines the signal transmission quality in the current operation state according to the received signal. For another example, when the signal selection module 227 is in a radio monitoring state of the communication system shown in fig. 2, the signal from the switching module 226 is transmitted to the detection module 225, so that the monitoring module performs signal detection on the received signal, and further determines whether the signal is a signal transmitted by an eavesdropper, and accordingly determines whether an eavesdropper exists in the current environment. It is understood that, in other embodiments, if the MRX has a function of receiving multiple signals, the key signal selection module 227 may also be used to ensure that the MRX works normally, and meanwhile, the effects of simplifying devices and reducing cost are achieved.

It should be noted that the coupling manner of the switching module 226 in the circuit shown in fig. 2 is only an example, and the coupling manner of the switching module 226 may be different in different implementations of the embodiment of the present application. For example, the switching module 226 may be coupled between the antenna module 230 and the coupler 224 (as shown in fig. 2), and the switching module 226 may be coupled between the receiving module 222 and the antenna module 230. In the following description, the setting manner of the switching module 226 and the working mechanism thereof under different scenarios will be described in detail.

From the above description, it can be understood that, in the embodiment of the present application, the processor 210, the rf module 220 and the antenna module 230 cooperate to implement various functions related to signal transmission and signal reception. For example, when the electronic device sends a signal, the baseband 211 may load data to be sent on the digital signal in a digital modulation manner, thereby obtaining a baseband signal corresponding to the data to be sent. The baseband signal is converted by the RFIC 212 into a transmit signal, wherein the transmit signal is an analog signal. The transmission signal may be processed in the rf domain of the rf module 220 and transmitted through the antenna module 230. Correspondingly, when the electronic device needs to receive signals, the antenna module 230 sends the received signals to the radio frequency module 220 for radio frequency domain processing, and sends the processed received signals to the RFIC 212, the RFIC 212 processes the received signals into baseband signals and sends the baseband signals to the baseband 211, and the baseband 211 converts the processed baseband signals into data and sends the data to the corresponding application processor 210, where the received signals are analog signals. In the embodiment of the present application, a link for performing signal transmission may be referred to as a transmission link, and may be referred to as a TX link. Correspondingly, the link for receiving signals is called a receiving link, and may be called an RX link. When a plurality of RX links and/or TX links are included in the radio frequency module, one RX link or one TX link may also be referred to as one radio frequency channel. It should be noted that, in some implementation scenarios, when the RX link and the TX link are the same physical link, the physical link may also correspond to one radio frequency channel.

It should be noted that in some implementations of the embodiments of the present application, one or more power amplifiers and/or filters may be further disposed on the TX chain to adjust the power and waveform of the rf domain before the transmission signal is transmitted to the antenna module 230. Similarly, one or more Low Noise Amplifiers (LNAs) and/or filters may be provided in the RX chain to facilitate optimal adjustment of the rf domain for the received signal. Correspondingly, in some embodiments of the present application, one or more LNAs and/or filters may also be disposed between the switching module 226 and the detecting module 225, so as to perform an optimal adjustment of the radio frequency domain on the signal for radio monitoring, and thus, a more accurate data detection result can be obtained accordingly.

In other embodiments of the present application, the communication system of the electronic device may include more or fewer components than shown, or some components may be combined, some components may be split, or a different arrangement of components. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

In order to accurately describe the method provided by the embodiment of the present application, a specific implementation of the communication system provided by the embodiment of the present application is first illustrated with reference to the accompanying drawings. The solutions provided by the embodiments of the present application can be implemented in the communication system as shown in fig. 2 and fig. 3 to 9 described below.

Please refer to fig. 3, which is a schematic diagram illustrating a communication system according to an embodiment of the present disclosure. This fig. 3 may be illustrative of one particular implementation of the logic shown in fig. 2.

It can be understood that, when the electronic device needs to operate in a plurality of different frequency bands, the transmitting module and the receiving module included therein may each include a plurality of different channels. Different paths may be used for signal transmission at different frequencies.

For example, as shown in fig. 3, the rf module 220 may include n transmit paths and n receive paths, where n is an integer greater than or equal to 1. For example, the n transmit paths and receive paths may include transmit paths TX1-TXn and receive paths RX 1-RXn. In this example, the transmit and receive paths (transmit path and receive path) operating in the same frequency band may be coupled to the same frequency selective switch to multiplex the frequency selective switch to perform frequency selection during signal transmission and reception, respectively. For example, the transmit path TX1 may be coupled to the frequency selective switch RFS1 with the receive path RX 1. The transmit path TX2 may be coupled to the frequency selective switch RFS2 along with the receive path RX 2. By analogy, the transmit path TXn may be coupled to the frequency selective switch RFSn with the receive path RXn.

In the embodiment of the present application, a transmission link of a signal may include a corresponding signal transmission path. For example, a transmission link for a frequency (or a band) may include a transmit path for transmitting signals at the frequency and a receive path for receiving signals at the frequency. The transmission path and the reception path corresponding to different frequencies (or frequency bands) are generally different. In the above description, both the transmission path and the reception path are for the transmission of the master set signal. In the scenario of providing a diversity signal transmission link, for a frequency (or a frequency band), in addition to the transmission path and the reception path of the main set signal transmission performed by the user, a diversity reception path corresponding to the frequency may be further included. By the diversity reception path, the downlink signal reception enhancement at the frequency can be realized. In the embodiment of the present application, the set of transmission paths corresponding to each frequency may be referred to as a transmission module, such as the transmission module 221 shown in fig. 2. Correspondingly, the set of receiving paths corresponding to each frequency may be referred to as a receiving module, such as the transmitting module 222 shown in fig. 2.

In conjunction with the description of fig. 2, a coupler may be disposed after the frequency selective switch, so that during the signal transmission process, a part of the signal is shunted to the MRX to realize the monitoring of the signal quality. In this example, a coupler may be provided on the data transmission channel of one frequency. For example, a coupler C1 may be provided after the frequency selective switch RFS1, a coupler C2 may be provided after the frequency selective switch RFS2, and the like. It can be understood that, in the example shown in fig. 3, a coupler is provided on the data transmission channel of each frequency, so that the monitoring of the signal quality of the full frequency band can be realized. In other embodiments of the present application, a coupler may also be selectively disposed on a data transmission channel of a partial frequency, thereby implementing monitoring of signal quality of a main frequency band. In the following description, a case will be described in which corresponding couplers are provided in data transmission channels of all frequencies.

In the example shown in fig. 3, a corresponding switch may be disposed on the TX/RX link for switching signals on the link, so as to control the communication system to operate in different operating states by switching the flow direction of the signals from the antenna module 230 to the rf module 220. For example, the operating state of the communication system may include a normal operating state, and a radio monitoring state. In a normal operating state, the communication system can perform normal signal transceiving. In the radio monitoring state, the communication system may be used for radio monitoring. For example, in the radio monitoring state, the antenna module 230 may transmit the received signal to the MRX path through the switch, so as to perform signal detection on the received signal and determine whether the signal is an eavesdropping signal (i.e. a signal sent by an eavesdropper). It is to be understood that a set of a plurality of switches provided on a plurality of different TX/RX links may be referred to as a switching module. The plurality of switches S1-Sn may be integrated in one or more integrated circuits, and one or more of the plurality of switches S1-Sn may also be integrated in one integrated circuit with the signal selection module 227 and the like.

Illustratively, the TX1/RX1 link is taken as an example. At the rear end of the coupler C1 to which TX1/RX1 is coupled, a switch S1 may be provided. Under normal operation, the switch S1 is used to connect the coupler C1 and the antenna module 230. Thus, when performing signal transmission, a transmission signal from TX1 can be transmitted to the antenna module 230 through RFS1 and the coupler C1. In addition, a part of the transmission signal may be branched and transmitted to the MRX path before being transmitted to the antenna module 230 by the coupler C1, so as to monitor the current signal quality according to the signal. Correspondingly, the switch S1 can be used to connect the MRX path to the antenna module 230 in the radio monitoring state. Thus, the antenna module 230 can transmit the received signal to the MRX path through the switch S1, so that it can determine whether there is an eavesdropper in the current environment by determining whether the signal is a signal transmitted by the eavesdropper. It is understood that other links (such as TX2/RX2 link, TXn/RXn link, etc.) shown in fig. 3 may also be provided with corresponding switches, and similar switching processes are performed through the above-mentioned schemes, and are not described herein again.

It should be noted that, as shown in fig. 3, the function of the signal selection module may be implemented by a single-pole multi-throw switch ST. The number of states of the single-pole multi-throw switch ST may be greater than or equal to twice the number of TX/RX links, so as to provide sufficient switching states to meet the transmission requirements of signals to the MRX path corresponding to each TX/RX link in different operating states.

In order to make the solution provided by the embodiments of the present application more clear to those skilled in the art. Please refer to fig. 4, which illustrates a configuration of another communication system according to an embodiment of the present application. Here, the example is exemplified by an antenna module 230 provided with a High band antenna group (HBANT) and a Low band antenna group (LBANT). In this example, corresponding to the arrangement in the antenna module 230, radio frequency links corresponding to HBANT and LBANT are correspondingly arranged in the radio frequency module 220, for example, as shown in fig. 4, the TX1/RX1 link corresponds to HBANT, and the TX2/RX2 link corresponds to LBANT.

It is to be understood that the antenna provided in the electronic device may include a plurality of antennas. The plurality of antennas may include groups of antennas operating in different frequency bands. For example, the plurality of antennas may include a LBANT including one or more antennas operating in a low frequency band, and for example, the plurality of antennas may include a HBANT including one or more antennas operating in a high frequency band.

In a normal operating scenario, S1 in the switching module 226 may be used to turn on the HBANT and the coupler C1, thereby implementing transceiving of high-frequency signals. For example, when performing signal transmission, TX1 may transmit a transmission signal (e.g., transmission signal 1) to HBANT through frequency selective switch RFS1 and C1 and S1. So that the transmission signal 1 is transmitted in the form of electromagnetic waves by the HBANT. In signal reception, the HBANT may receive an electromagnetic wave and convert the electromagnetic wave into an analog signal (e.g., received signal 1). HBANT may transmit the received signal 1 to RX1 for radio frequency domain processing through S1, C1, RFS 1. So that RX1 can send the received signal after rf domain processing to back-end processor 210 for parsing and the like.

For a low-frequency link (e.g., a signal link corresponding to the TX2/RX2 link), in a normal operating scenario, the S2 in the switching module 226 may be configured to turn on the LBANT and the coupler C2, thereby implementing transceiving of a low-frequency signal. The working state is similar to that in the high frequency link, and is not described herein again.

In the embodiment of the present application, the communication system may operate in a radio monitoring state in addition to the above-described normal operation state. In the scenario of the radio monitoring state, for the high-frequency link, S1 in the switching module 226 may be configured to turn on the HBANT and the MRX path, so as to transmit the monitored signal to the MRX path for signal detection, thereby enabling the wireless communication system to implement the radio monitoring function. In some embodiments, when the number of signal receiving interfaces of MRX is limited, as shown in fig. 4, a signal selection module ST may be provided between the MRX path and S1, for example, the ST may implement its signal selection function through a single-pole multi-throw switch. As an example, HBANT may convert the received electromagnetic wave into an analog signal (e.g., snoop signal 1), and HBANT may send snoop signal 1 to MRX path through S1 and ST. The MRX may perform signal detection on the received interception signal 1, so as to determine that the interception signal 1 is an interception signal sent by an eavesdropper if the interception signal 1 meets a preset rule. For example, since the signal transmitted by the eavesdropper to the base station is generally a continuous signal with a stable power output, it can be determined whether the eavesdropping signal 1 is an eavesdropping signal by determining whether the eavesdropping signal 1 has the above-mentioned characteristics (e.g., continuous uninterrupted, and/or stable signal power). The electronic device provided with the communication system can thus determine the presence of an eavesdropper in the current environment. In some embodiments, the electronic device may also issue an alert to the user (e.g., issue an alert tone, and/or display a reminder interface on the interface, etc.). For the low frequency link, the operation state is similar to that of the high frequency link in the radio monitoring state. For example, S2 in the switching module 226 may be configured to turn on LBANT and MRX paths, so as to transmit the monitored signal to the MRX path for signal detection, thereby enabling the wireless communication system to implement the radio monitoring function. The specific implementation is similar, and the detailed description is omitted here.

In the solution description shown in fig. 4, the antenna module 230 is described by dividing the operating frequency band into high and low frequency bands. In other embodiments, when the antenna module 230 includes a main set antenna and a diversity antenna, the switching module 226 may be disposed on a main set signal transmission link corresponding to the main set antenna, and may also be disposed on a diversity signal transmission link corresponding to the diversity antenna.

Illustratively, the switching module 226 is disposed on the main set signal transmission path. With continued reference to fig. 4, TX1/RX1 may correspond to the master set transmission link to HBANT. Thus, the communication system can realize two working states of a normal working state and a radio monitoring state according to the above description. By this scheme, the radio monitoring function of the electronic device provided with the communication system is realized by adding the switching module 226 in the radio frequency module 220. Then, when radio monitoring is needed, the user can perform radio monitoring on the current environment by setting the electronic device to work in a radio monitoring state so as to determine whether the eavesdropper exists. Therefore, under the condition that the electronic equipment is hardly required to be changed, the functions of the electronic equipment are expanded, the cost rise caused by the need of using independent radio monitoring equipment for radio monitoring is avoided, and meanwhile, the convenience of radio monitoring is obviously improved.

In other embodiments of the present application, the switching module 226 may also be disposed on a diversity transmission link. For example, please refer to fig. 5. In this example, the switching module 226 may include S3 and S4 as shown in fig. 5. In conjunction with fig. 4, under normal operating conditions, S3 may be used to couple HBANT and corresponding diversity receive path RX 3. Thereby allowing HBANT to transmit a received downlink signal (e.g., received signal 2) to RX3 via S3. It should be noted that, in this example, a frequency selective switch RFS3 may be disposed between RX3 and S3, and the RFS3 may be used to perform frequency selection (e.g., filtering) on the received signal 2 to achieve the effect of noise removal, thereby improving the signal quality of the received signal 2 transmitted to RX 3. In other embodiments, when the signal quality of the received signal 2 is originally better or the RX3 has low requirement on the signal quality of the received signal, the RFS3 may be reduced to achieve the purpose of saving cost. RX3 may perform radio frequency domain processing on received signal 2 and transmit processed received signal 2 to processor 210, so that processor 210 may parse the data carried in received signal 2 according to received signal 2. Corresponding to the normal operating state, in the radio monitoring state, S3 may be used to couple the HBANT and MRX paths. In some embodiments, as shown in fig. 5, an ST may also be provided between S3 and the MRX path. Thereby allowing HBANT to transmit received snoop signal 2 to the MRX path via S3, ST. The processor 210 disposed at the back end of the MRX path can perform signal detection on the monitoring signal 2 to implement the radio monitoring function of the communication system and the electronic device. For the low frequency link, reference may be made to S3 for the function and setting of S4, and details are not described here.

It will be appreciated that in the example shown in figure 5, since S3 and S4 are provided on the diversity transmission link. Therefore, due to the introduction of the S3 and S4, the newly added link loss of the switch only affects the diversity signal, and does not affect the transmission of the main diversity signal.

In the above description, the switching module 226 is disposed on the main set transmission link or the diversity transmission link, for example. In other embodiments of the present application, some switches in the switch module 226 may be disposed on the main set transmission link, and another part of switches may be disposed on the diversity transmission link. The application is not limited to the location of the switching module 226 on the transmission link.

In conjunction with the foregoing description of fig. 2-5, a processor in the electronic device may be used to implement the signal detection function in the radio monitoring state. In other embodiments of the present application, the signal detection function in the radio monitoring state may also be implemented by the receive path. It is understood that the receiving path (such as the RX1, RX2, RXn, etc. mentioned above) may perform the processing of the radio frequency domain on the received signal. The processing may include measuring the signal strength of the received signal, etc. The receive path may also be used to determine whether the received signal is continuous, uninterrupted, etc. Therefore, in this example, the switching module 226 may also transmit the listening signal to the receiving path in the radio monitoring state, so as to implement signal detection on the listening signal through the receiving path.

It should be noted that, in the embodiment of the present application, the normal operating state and the radio monitoring state of the electronic device/communication system may be time-shared, that is, when the electronic device is in the radio monitoring state, no other valid data is received. Therefore, when the receiving channel is used for carrying out signal detection on the monitoring signal, the problem that the monitoring signal and the received data in the normal working state are influenced mutually can not occur.

Please refer to fig. 6, which is a schematic diagram illustrating a communication system according to another embodiment of the present application. In this example, the RX path may perform signal detection on the listening signal in a radio monitoring state.

Illustratively, the switching module 226 may include S5 and S6. Wherein, under normal operation, S5 can be used to couple HBANT and C1. Thereby realizing normal receiving and transmitting of signals. Correspondingly, in the radio monitoring state, S5 may be used to couple HBANT and RX 1. So that RX1 may receive a listening signal (e.g., listening signal 3) from HBANT in a radio monitoring state and perform signal detection on listening signal 3.

In many cases, a data reception interface is provided in a general RX path. To ensure that the listening signal 3 is not affected by C1 and RFS1, a switch S7 may be provided after the data reception interface of RX1 in this example. So that under normal operating conditions, S7 can be coupled to RX1 and RFS1 for normal transmission of received data; in the radio monitoring state, the S7 may be coupled to the S5 and the RX1, so that the S5 may directly transmit the listening signal 3 received by the HBANT to the RX1 through the S7 without transmitting the listening signal 3 through the RFS1 and/or the C1, thereby ensuring the signal quality of the listening signal 3.

The above description details the two operating states of the high-frequency link shown in fig. 6, and it can be understood that, for the low-frequency transmission link, the setting and the operating state are similar, and are not described herein again.

By the scheme, the signal detection function of the multiplexing RX path can be maximized, and the signal processing pressure of the processor can be reduced. The method can also be applied to some electronic devices without MRX, and does not need to separately introduce relevant components of MRX in order to realize the radio monitoring function.

In connection with the foregoing description of the main set transmission link and the diversity transmission link, in the description shown in fig. 6, the switching module 226 including S5 and S6 is set on the host transmission link by default. In other embodiments of the present application, signal detection of the listening signal may also be achieved by multiplexing diversity receive paths.

Fig. 7 is a schematic diagram of another communication system according to an embodiment of the present application. In this example, diversity receive paths RX3 and RX4 may be used for signal detection of listening signals of both high and low frequencies. As shown in fig. 7, the switching module 226 may include S9 and S10. In normal operating conditions, S7 may be used to couple HBANT and RFS3 disposed on diversity receive path RX 3. Thereby realizing normal receiving and transmitting of signals. Correspondingly, in the radio monitoring state, S7 may be used to couple HBANT and RX 3. So that RX1 may receive a listening signal (e.g., listening signal 4) from HBANT in the radio monitoring state and perform signal detection on listening signal 4. In conjunction with the foregoing, in this example, a switch may be provided at the data receiving end of the diversity reception path (e.g., RX3) to adapt the signal stream inflow in different operating states. For example, S11 may be provided at the data receiving end of RX 3. Under normal operating conditions, the S11 may be used to couple RFS3 and RX3 so that the received signal may flow into RX3 normally. In the radio monitoring state, the S11 may be used to couple S9 and RX3, so that the listening signal 4 is transmitted by HBANT to RX3 through S9 and S11 for signal detection.

The setting of the two working states on the corresponding low-frequency link is similar to the setting of the working state on the high-frequency link, and is not described herein again.

As shown in fig. 7, the switching module 226 may be disposed on the diversity transmission link, so that the electronic device has a radio monitoring function without affecting normal communication. Because the newly added change-over switches are all arranged on the diversity reception path, no influence is generated on the receiving and transmitting of the main set signals. In addition, similar to the foregoing fig. 6, since the RX path is multiplexed for signal detection of the listening signal without using the MRX path, the signal processing load related to the MRX path can be reduced, and at the same time, the RX path detection method can be applied to an electronic device in which the MRX path is not provided.

It should be noted that, in the above example, the switching module 226 in the electronic device may implement its switching function through 1 or more switches. In various implementations of the present application, the switching module 226 may implement the change of the switching state based on various control states. In some implementations, for the switching module 226 controlled by a General-purpose input/output (GPIO) interface, the processor 210 or the baseband 211 in the electronic device may adjust the state of the analog control signal on the GPIO control line so that the switching module 226 operates in different operating states. For example, the switching module 226 is controlled by 2 GPIO control lines. The processor 210 or the baseband 211 may control the analog control signal on the GPIO control line to operate at a high level or a low level, where the high level corresponds to 1 and the low level corresponds to 0, and then the processor 210 or the baseband 211 may control the switching module 226 to operate in at least 4 operating states of 01, 10, 00, and 11. In other implementations, for the switching module 226 controlled by a Mobile Industry Processor 210 Interface (MIPI), the Processor 210 or the baseband 211 in the electronic device may control the state of the corresponding bit (e.g., set to 0 or set to 1) of the digital control signal transmitted on the MIPI signal line, so that the switching module 226 operates in different operating states. The control instruction of the switching module 226 in the above example may be stored in the internal storage area of the processor 210 or the baseband 211, and is invoked and issued to the switching module 226 when the operating state of the switching module 226 needs to be adjusted. In other implementations of the present application, the control instruction may also be stored in other components of the electronic device with a storage function, for example, the control instruction may be stored in an internal memory of the electronic device, and for example, the control instruction may also be stored in an external memory of the electronic device. The embodiment of the present application does not limit the storage location of the control instruction.

From the above description of fig. 2-7, it can be understood that the radio monitoring function of the electronic device is realized by providing the switching module 226 in the electronic device. That is, the switching module 226 may be independently provided in the electronic device. In other embodiments of the present application, the switching module 226 may be integrated with other components to achieve the corresponding functions.

Illustratively, in some embodiments, the switching function of the switching module 226 may be implemented by a coupler. Referring to fig. 8 in conjunction with fig. 2, a schematic composition diagram of another communication system according to an embodiment of the present application is shown. The difference with the solution shown in fig. 2 is that the functionality of the switching module is integrated in the coupler in the solution shown in fig. 8.

It is understood that, in general, the coupler may shunt a part of the transmission signal from the transmission module to the detection module (such as MRX) to monitor the signal quality in the current communication. While for signals from the antenna module 230 the coupler is in isolation. In this example, this characteristic of the coupler can be referred to as a forward conduction, reverse isolation characteristic corresponding to the transmitting module. Due to the forward conduction and reverse isolation characteristics of the coupler corresponding to the transmitting module, the general coupler cannot transmit the usable signal from the antenna module 230 to the MRX path. In the embodiment of the present application, the isolation between the signal from the antenna module 230 and the signal transmitted to the MRX path in the coupler may be reduced by adjusting the reverse isolation of the coupler, for example, in a radio listening state, so that the listening signal from the antenna module 230 may be transmitted to the MRX path through the coupler. In this scenario, since the transmitting module does not transmit a signal, the coupler only transmits the monitoring signal to the MRX path, thereby implementing signal switching.

In some embodiments of the present application, the reverse isolation characteristic of the coupler, even if the isolation in the radio listening state is reduced, may result in a situation where the signal power of a portion of the listening signal is small. Therefore, in this example, an LNA 228 may be disposed between the coupler and the signal selection module coupled to the MRX path to facilitate low noise amplification of the signal from the coupler, improve signal quality, and facilitate processing of the signal by the MRX path.

It is understood that the scheme shown in fig. 8 can also be applied to the division scenarios of the antenna module 230 in fig. 4-7. The specific implementation thereof can be described with reference to the scheme shown in fig. 8.

In the solution shown in fig. 8, by improving the coupler, the function of the coupler and the switching module 226 is integrated, so that the link loss introduced by the switching module 226 can be avoided while the radio monitoring function of the electronic device is implemented.

In other embodiments of the present application, the integration of the coupler with the functionality of the switching module 226 may also be achieved by using a bi-directional coupler. Due to the natural bidirectional conduction characteristic of the bidirectional coupler, in the radio monitoring state, the antenna module 230 can directly transmit the monitoring signal to the detection module for signal detection.

For example, please refer to fig. 9, which is a schematic diagram illustrating a composition of another communication system according to an embodiment of the present application. The signal selection module is taken as a switch ST as an example. As shown in fig. 9, in a normal state, the bidirectional coupler 229 may be used to transmit the transmission signal from the transmitting module to the antenna module 230 and to transmit the transmission signal to the detecting module through ST, respectively. In the radio detection state, the bidirectional coupler 229 may transmit the listening signal from the antenna module 230 to the detection module for signal detection through ST.

Taking fig. 9 as an example, fig. 10 shows a specific implementation scenario. In this case, the antenna module 230 is provided with HBANT and LBANT, for example. A bi-directional coupler DC1 may be provided on the high frequency link. The DC1 can perform corresponding signaling in normal operating conditions and radio monitoring conditions, respectively. For example, under normal operating conditions, DC1 may transmit a transmit signal from TX1 to HBANT for transmission. In this normal operating state, DC1 may also transmit a transmit signal through the ST to the MRX path for signal detection during transmission. As another example, in the radio monitoring state, DC1 may transmit a snoop signal from HBANT to the MRX path through the ST to facilitate signal checking thereof.

Similar to the high frequency link, a DC2 may be provided on the low frequency link, and this DC2 may be used to support the transmission of low frequency signals in two operating states. The transmission path is similar to the transmission of the high frequency signal described above.

It can be seen that in this example, a bi-directional coupler may be employed, enabling integration of the functionality of the coupler and the switching module 226. Link loss introduced by the need to add switching module 226 is thereby avoided.

It will be appreciated that the above description with respect to fig. 2-10 illustrates possible components of the various communication systems provided by embodiments of the present application. Any of the communication systems described above may be applied to electronic devices. The electronic device can realize a radio monitoring function according to the communication method provided by the embodiment of the application based on the communication system.

In some embodiments, in the electronic device provided in the embodiments of the present application, other components may also be included so as to implement other functions of the electronic device.

For example, please refer to fig. 11, which is a schematic composition diagram of an electronic device 100 according to an embodiment of the present disclosure. The electronic device 100 may include a processor 110, an external memory interface 120, an internal memory 121, a Universal Serial Bus (USB) interface 130, a charging management module 140, a power management module 141, a battery 142, an antenna 1, an antenna 2, a mobile communication module 150, a wireless communication module 160, an audio module 170, a speaker 170A, a receiver 170B, a microphone 170C, an earphone interface 170D, a sensor module 180, a button 190, a motor 191, an indicator 192, a camera 193, a display screen 194, a Subscriber Identity Module (SIM) card interface 195, and the like. Wherein, the sensor module 180 may include a pressure sensor, a gyroscope sensor, an air pressure sensor, a magnetic sensor, an acceleration sensor, a distance sensor, a proximity light sensor, a fingerprint sensor, a temperature sensor, a touch sensor, an ambient light sensor, a bone conduction sensor, etc.

In the electronic device 100 shown in fig. 11, the processor 110 may correspond to the processor 210 in the communication system shown in fig. 2-10. The mobile communication module 150 and the wireless communication module 160 may correspond to the rf module 220 shown in fig. 2-10. The antenna 1 and the antenna 2 may correspond to the antenna module 230 shown in fig. 2-10.

It is to be understood that the illustrated structure of the present embodiment does not constitute a specific limitation to the electronic device. In other embodiments, an electronic device may include more or fewer components than illustrated, or combine certain components, or split certain components, or a different arrangement of components. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

From the above description, those skilled in the art should clearly understand the hardware composition of the electronic device and the communication system provided in the embodiments of the present application. It should be noted that, in some embodiments of the present application, an operating system may also be run in the electronic device, for example, when the electronic device is a portable device such as a mobile phone, an Android operating system, and/or an IOS operating system, and/or a Linux operating system, and/or a Windows operating system, and the like may be run in the electronic device.

In the operating system, an application program may be installed. The user may instruct the electronic device to implement the respective functions by inputting instructions to the application program. Illustratively, fig. 12 shows a software composition of an electronic device provided in an embodiment of the present application.

As shown in fig. 12, an Application (APP) layer 1201, a framework (framework) layer 1202, a kernel layer 1203, and a hardware layer 1204 may be provided in the electronic device. The hardware layer 1204 may also be referred to as a physical layer.

One or more applications may be provided in the APP layer 1201. For example, in the present example, the APP layer 1201 may be provided with a radio detection application. The framework layer 1202 may be provided with a file management system, and the file management system may be configured to call a corresponding code according to an instruction issued by an application program in the APP layer 1201, and issue the corresponding code to the kernel layer 1203. The core layer 1203 may include driving instructions of various hardware components. When a code corresponding to an instruction issued by an application program in the APP layer 1201 needs to be executed, the code may be issued by calling a driver of hardware in the kernel layer 1203, so as to drive the corresponding hardware to execute a corresponding operation according to the instruction issued by the application program.

Illustratively, a radio monitoring application (e.g. referred to as APP1) is provided in the application layer. The APP1 may issue a first instruction to the framework layer 1202 when it is desired to switch the electronic device to a radio monitoring state. The framework layer 1202 may issue the internal execution code corresponding to the first instruction to a switch in the hardware layer 1204 through the kernel layer 1203. The switch may be a switch in a switching module in the communication system in the foregoing description. The internal execution code may be a code for controlling the state of each of the switches corresponding to the first command. When the internal execution code is received by the change-over switch, the current switch state can be set according to the internal execution code, so that the electronic equipment works in the radio detection state corresponding to the first instruction.

It is understood that the functions of the APP layer 1201, the framework layer 1202, and the kernel layer 1203 included in the software composition described above can be implemented in the processor in the foregoing description.

The communication method provided by the embodiment of the present application can be applied to the communication system as described above in any one of fig. 2 to fig. 10, or the electronic device as shown in fig. 11, or the software component as shown in fig. 12. Therefore, the radio monitoring function can be provided for the electronic equipment, and the problems of poor portability and high cost caused by the fact that independent equipment is required to carry out radio monitoring at present are further avoided.

The following describes the communication method provided in the present application with reference to an actual scenario, by taking an example of an application in an electronic device, where the electronic device is provided with a communication system as shown in fig. 5.

As shown in fig. 13, the scheme may include:

s1301, the electronic equipment receives a first operation of a user, and the first operation is used for indicating to turn on a radio monitoring function.

Illustratively, the first operation may be an operation on an application installed in the electronic device. For example, as shown in (a) of fig. 14, the first operation may be an operation in which the user clicks the radio monitoring APP. In other embodiments of the present application, the radio monitoring function in the electronic device may also be integrated in the operating system. For example, as shown in fig. 14 (b), the user can see the radio detection function by entering a setting interface of the electronic device. The user may click a button (e.g., button 1401) corresponding to the radio monitoring function and enter the first operation.

S1302, responding to the first operation, the electronic equipment is switched to work in a radio monitoring state.

For example, in conjunction with fig. 5, the electronic device may cause the communication system to operate in the radio monitoring state by indicating the switching states of the switches S3, S4, and ST. The switching states of S3, S4, ST are taken as the first state in the radio detection state, and the switching states of S3, S4, ST are taken as the second state in the normal operation state, for example. The APP layer of the electronic device can call the AP and/or Modem and other components, and issue a first switch switching instruction corresponding to the first state. The Modem may issue the first switching command to S3, S4, and ST via the physical layer. S3, S4, ST may set the switch state to the first state according to the first switch command after receiving the first switch command. For example, in the first state, S3 and ST may be used to turn on HBANT and MRX paths, and S4 and ST may be used to turn on LBANT and RFS 4. It should be noted that, since the listening signal may be one of a high frequency signal or a low frequency signal at the same time during the radio monitoring process, the ST may determine whether to turn on the S3 and MRX path or the S4 and MRX path according to the transmission of the signal. In other embodiments of the present application, the ST may also be in the first state, and rapidly switch between the port corresponding to S3 and the port corresponding to S4 at a small interval, so that the ST can rapidly transmit the corresponding snoop signal to the MRX path for signal detection regardless of whether HBANT needs to transmit the snoop signal to the MRX path or LBANT needs to transmit the snoop signal to the MRX path.

In some embodiments of the present application, when the electronic device switches to the radio monitoring state, the current normal network connection may be disconnected (for example, the modem issues an offline command), so as to perform data processing on the listening signal normally.

Referring to fig. 15, upon switching to a radio detection state, the electronic device may display an interface 1501. The interface 1501 may prompt the user that radio monitoring is taking place. As shown in fig. 15, in some embodiments, the interface 1501 may include image elements and/or a prompt box therein for presenting the radio monitoring process to a user. For example, the image element may include 1502 as shown in FIG. 15. It is noted that, in some embodiments of the present application, the image in the image element 1502 may be presented to the user in a dynamic presentation effect. In other embodiments of the present application, a prompt box may also be included in interface 1501. For example, the prompt box may be the prompt box shown in 1503. Text information may be included in the prompt box that may be used to prompt the user that the electronic device is currently on radio monitoring. As an example, the text information may include: radio monitoring is ongoing.

It will be appreciated that for most eavesdroppers, the eavesdropper will send information (e.g., send an eavesdropping signal) to the network device without interruption after listening for sounds in the environment, so as to send the eavesdropping information out. In order to activate the eavesdropper to transmit the eavesdropper during the radio monitoring, in some embodiments of the application, the electronic device may actively emit a sound during the radio monitoring to trigger the eavesdropper to transmit the eavesdropper to the network device. The electronic device may monitor the eavesdropping signal for radio monitoring. For example, referring to fig. 16, during the radio monitoring, the electronic device may play music through a speaker disposed therein to activate the information transmission between the bug and the network device. Alternatively, the electronic device may play sound data, such as a conversation simulating human voice, stored in advance through a speaker provided therein, so as to activate information transmission between the bug and the network device. Wherein, the sound emitted by the electronic device during the radio monitoring process can be a preset sound or a sound selected by a user.

As a possible implementation, the software components in fig. 12 are combined. An application running in an application layer in the electronic device (such as a radio monitoring application) may issue an instruction to play preset music to the framework layer. In response to the instruction, an application management system in the framework layer, corresponding to the radio monitoring program, may call a corresponding processing command in the memory (or external storage). The processing command may be issued to a corresponding component in the hardware layer via the kernel layer. For example, the preset music is played using a speaker in the electronic device. The processing command may be issued to the speaker through a driver corresponding to the speaker in the kernel layer. And the loudspeaker calls the corresponding preset music from the storage space (such as an internal memory, an external memory and the like) of the electronic equipment to play according to the processing command. The playing parameters such as the playing speed and the volume of the preset music can be preset according to the system setting, and can also be set by the user.

Note that, the preset music in the above example may be music set in the radio monitoring application program, or may be music set by the user. Different from the scheme in which the radio monitoring application issues an instruction to play music for activating the eavesdropper in the above example, in other embodiments of the present application, when music needs to be played, the radio monitoring application may further prompt the user to control the current electronic device or other electronic devices with a music playing function to play music by itself through a voice prompt, an interface text prompt, or other prompt manners, so as to activate the eavesdropper to send the eavesdropper signal.

When an eavesdropper exists in the current environment, the eavesdropper transmits an eavesdropper signal to the network device. Referring to fig. 5, as shown in fig. 17, HBANT or LBANT in the electronic device may also receive a signal from an eavesdropper. The HBANT or LBANT may send the received snoop signal to the MRX path so that the electronic device may analyze the snoop signal to determine whether the snoop signal is a snooped signal sent by an eavesdropper.

Illustratively, the function of the detection module is implemented by a processor in the electronic device. The processor in the electronic device may determine whether the monitored signal is an eavesdropping signal according to the signal strength, and/or the behavior state, and/or the time-domain spectrum information of the monitored signal.

In the embodiment of the present application, in the radio listening state, the MRX path may transmit a listening signal from the antenna module to the RFIC. The RFIC may perform radio frequency domain processing on the listening signal. The RFIC may send the processed signal to the baseband for further signal detection.

In some embodiments, the RFIC may transmit the RSSI of the listening signal to the baseband for signal detection. The baseband may determine whether the listening signal is a suspect signal based on the RSSI of the listening signal. For example, the baseband may determine that the monitored signal is a suspicious signal when the RSSI of the monitored signal is greater than a corresponding threshold value according to the RSSI of the monitored signal. It should be noted that, in some embodiments of the present application, a plurality of thresholds corresponding to the RSSI may be preset in the electronic device. The plurality of thresholds may divide the transmission signal power into a plurality of non-overlapping intervals. The higher the RSSI of the listening signal falls within the higher transmit power interval, the higher the suspiciousness of the listening signal.

In other embodiments, the RFIC may transmit the RSSI of the listening signal to the baseband for signal detection. The baseband can determine whether the monitored signal is a suspicious signal according to the RSSI of the monitored signal and the turn-on/turn-off timing of the music emitted by the electronic device for activating the eavesdropper. For example, after the electronic device starts playing music, it is detected that the RSSI of the monitored signal is significantly enhanced; and/or the electronic device detects that the RSSI of the monitored signal is significantly reduced after the music playing is turned off, and then the behavior state of the monitored signal can be considered to be close to the behavior state of the music which activates the eavesdropper. The baseband may determine that the listening signal is a ok signal.

In other embodiments, the RFIC may transmit In-phase/Quadrature (I/Q) information of the listening signal to the baseband for signal detection. The baseband can determine the RSSI of the monitored signal according to the I/Q information of the monitored signal, and determine whether the monitored signal is suspicious accordingly. Alternatively, the baseband may determine the RSSI of the listening signal according to the I/Q information of the listening signal, and accordingly determine whether the behavior state of the listening signal is close to the behavior state of the music activating the eavesdropper, thereby determining whether the listening signal is suspicious. Alternatively, the baseband may restore the frequency domain distribution of the listening signal according to the I/Q information of the listening signal, and determine whether the listening signal is a listening signal according to the similarity between the frequency domain distribution and the frequency domain distribution of the music activating the eavesdropper. For example, when the similarity between the frequency domain distribution of the listening signal and the frequency domain distribution of the music activating the eavesdropper is higher than the corresponding threshold, it can be determined that the listening signal is the eavesdropping signal.

It should be noted that the possible implementations shown in the above examples are not limited to the state of the network in which the eavesdropper transmits the eavesdropping signal. For example, when the eavesdropper performs the transmission of the eavesdropper signal through the cooperation of the GSM network, the WCDMA network, the TD-SCDMA network, or the CDMA network and the network status of the LTE network or the NR network, one or more of the methods in the above examples may be used to determine the existence of the eavesdropper.

In other embodiments of the present application, the electronic device may further adopt a corresponding determination mechanism according to a network state used for transmission of the monitoring signal. For example, the listening signal is transmitted through a GSM network. The antenna module may receive the listening signal through the corresponding antenna and transmit the listening signal to the RFIC through the MRX path. The RFIC may know that the listening signal is transmitted through the GSM network according to the characteristics of the listening signal. The RFIC may transmit information of the listening signal (such as RSSI of the listening signal, and/or I/Q information of the listening signal) after the radio frequency domain processing to the baseband. The baseband can determine whether the listening signal is an eavesdropping signal based on the information of the listening signal. It will be appreciated that, in general, there is a certain gap in the transmission of ordinary communication signals in a GSM network. The gap does not exist in the process that the eavesdropper sends the eavesdropping signal through the GSM network. Therefore, in the present example, the baseband may consider the listening signal to be a listening signal when the transmission power of the listening signal is always greater than the corresponding threshold value for a preset period of time, that is, there is an eavesdropper in the current environment. Wherein, in some embodiments, the length of the preset time period may correspond to a length of time of activating the music of the bug.

It should be noted that, in other embodiments of the present application, the electronic device may also report characteristic information of the listening signal, such as signal strength and/or continuity parameters of the listening signal, and/or I/Q information of the listening signal, to an application program (e.g., a radio monitoring application shown in fig. 14) in the application layer. The radio monitoring application may determine whether the currently received interception signal is an interception signal sent by an eavesdropper according to the received characteristic information.

When the electronic device determines that the current listening signal is a wiretap signal, the following S1303 may be performed.

S1303, when the electronic equipment determines that the eavesdropper exists in the current environment, the electronic equipment gives an alarm to a user.

After the electronic device determines that the listening signal is a listening signal, it can determine that an eavesdropper is present in the current environment.

In different implementation scenarios, the electronic device may alert the user in different ways.

For example, in some embodiments, the electronic device may display an alert interface on the display screen to alert the user of the presence of an eavesdropper in the current environment. In other embodiments, the electronic device may alert the user in the form of an alert tone through a speaker disposed therein. In other embodiments, the electronic device may alert the user in the form of a shock through a motor disposed therein. It is to be appreciated that in particular implementations, one or more combinations of the above examples can be employed to implement the alert to the user.

In the above example, the electronic device may disconnect the current normal network connection when switching to the radio monitoring state. In some embodiments of the application, the user may further instruct the electronic device to switch to the normal operating state by inputting a second operation corresponding to the first operation. In response to the second operation, the electronic device may issue a switch state instruction operating in the second state to each of the switches of the switching module through the Modem. In the second state, the switch can respectively conduct the antenna module and the corresponding TX/RX path, so as to realize normal data receiving and transmitting.

It can be seen that in the above description shown in fig. 13, the electronic device can disconnect the normal communication all the way during the radio monitoring process until the radio monitoring is finished. In other embodiments of the present application, the electronic device may not completely disconnect the normal communication during the radio monitoring, but perform the radio monitoring and the normal communication in a time-sharing manner in a form of fast cross-switching between the two. Therefore, data transmission and reception in normal communication can be carried out in the process of radio monitoring.

Illustratively, the electronic device is in a normal communication state when the first operation is received. The electronic device may switch the operating state to a radio listening state in a sleep state in Discontinuous Reception (DRX) during normal communication in response to the first operation. And in a wake up state (wake up) in DRX, the electronic device may switch the operating state to a normal operating state. Therefore, the radio monitoring in the dormant state can be realized while the normal work in the awakening state is not influenced.

It is to be appreciated that the electronic device can receive signals via the DRX configuration to achieve power savings. For example, by configuring DRX, the electronic device may periodically enter a sleep mode at some time, and does not monitor a Physical Downlink Control Channel (PDCCH), and when monitoring is needed, wakes up from the sleep mode (wake up), so as to enable the UE to achieve the purpose of saving power. That is, the DRX configuration may be used to configure the electronic device to be in an awake state for a period of time, and the electronic device may receive signals corresponding to each service in the awake state. The DRX configuration may also be used to configure the electronic device to be in a sleep state for a period of time, in which the electronic device may cease receiving the received signal. The awakening state and the dormant state are arranged in a crossed manner, so that the electronic equipment can obtain a period of rest after receiving a period of signals, and then continue to receive the signals. That is, when the electronic device is configured with the DRX configuration, no signal reception is performed in the sleep state. In this example, the electronic device can be in a sleep state, and commands operating in a first state are issued by the modem to the various switches for radio monitoring. Correspondingly, in the wake-up state, the electronic device may issue an instruction operating in the second state to each switch through the modem, so as to perform normal signal reception. In some embodiments, the DRX configuration may include a Connected mode DRX (Connected mode DRX) configuration.

With reference to the foregoing description, it can be seen that the radio monitoring scheme provided in the embodiments of the present application enables an electronic device to have a radio monitoring function in different scenarios. For example, in some embodiments, the electronic device may switch the communication state to the network disconnection state, i.e., issue an aircraft (offline) command, before turning on the radio monitoring function, so that the electronic device stops normal communication (e.g., goes offline). In some embodiments, the flight command may be issued by the electronic device to the corresponding physical device via the modem. When the radio monitoring function is turned on, the electronic device can issue a switching command through the modem so that the corresponding device switches the working state to the radio monitoring state, thereby enabling the electronic device to perform radio monitoring. Illustratively, fig. 18 shows a timing diagram of this embodiment. That is, in this example, the electronic device may break the network first, with radio monitoring taking place. Correspondingly, after radio monitoring is completed, the electronic device may resume normal communication, such as issuing an online command, to cause the electronic device to enter an online (online) state.

In other embodiments, the electronic device may also implement radio listening without issuing a command to disconnect the network (e.g., offline). In some implementations of the present embodiment, the electronic device may be always on-line while implementing the radio monitoring function. For example, when entering a sleep state corresponding to the DRX configuration, the electronic device may switch the current operating state to a radio monitoring state for radio monitoring. It will be appreciated that in sleep state, the electronic device will not listen for signals and therefore can monitor the radio normally. Correspondingly, when the electronic device enters the wake up state corresponding to the DRX configuration, the electronic device may switch the current operating state to the normal operating state, so as to provide a normal communication function for the user. Thus, the electronic equipment can provide the radio monitoring function for the user under the condition of not influencing normal communication. Illustratively, fig. 19 shows a timing diagram of this embodiment. It can be seen that the electronic device may respectively operate in different operating states in different periods (e.g. sleep period and wake up period) corresponding to the DRX configuration, so that the normal communication function and the radio monitoring function may be provided for the user at the same time without being perceived by the user.

Fig. 20 shows a schematic block diagram of a chip system 2000. The chip system 2000 may include: a processor 2001 and a communication interface 2002 for enabling a relevant device to implement the functions involved in the above-described embodiments. In one possible design, the system-on-chip further includes a memory for storing program instructions and data necessary for the terminal. The chip system may be constituted by a chip, or may include a chip and other discrete devices. It should be noted that, in some implementations of the present application, the communication interface 2002 may also be referred to as an interface circuit.

It should be noted that all relevant contents of each step related to the method embodiment may be referred to the functional description of the corresponding functional module, and are not described herein again.

The functions or actions or operations or steps, etc., in the above embodiments may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using a software program, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. The procedures or functions described in accordance with the embodiments of the application are all or partially generated when the computer program instructions are loaded and executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website, computer, server, or data center to another website, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or can comprise one or more data storage devices, such as a server, a data center, etc., that can be integrated with the medium. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.

Although the present application has been described in conjunction with specific features and embodiments thereof, it will be apparent that various modifications and combinations thereof may be made without departing from the scope of the application. Accordingly, the specification and drawings are exemplary of the application defined by the claims appended hereto and are intended to cover any and all modifications, variations, combinations, or equivalents within the scope of the application. 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 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 also intended to include such modifications and variations.

Claims

1. An electronic device is characterized in that the working state of the electronic device comprises a radio monitoring state and a working state, and the electronic device is provided with a processor, a radio frequency module and an antenna module;

when the electronic equipment works in the radio monitoring state, the antenna module is configured to receive a monitoring signal; the radio frequency module and the processor are configured to receive the monitoring signal from the antenna module; when the monitoring signal is a wiretap signal sent by a wiretap, the electronic equipment prompts;

when the electronic equipment works in the working state, the electronic equipment is configured to receive and transmit communication data.

2. The electronic device of claim 1, wherein in the radio monitoring state, the electronic device transmits a detection sound signal,

when an eavesdropper is arranged around the electronic equipment, the eavesdropper sends out the eavesdropper signal, and the eavesdropper signal is sent out after the electronic equipment sends the detection sound signal.

3. The electronic device according to claim 1 or 2, wherein the radio frequency module and the processor are configured to receive the listening signal from the antenna module and determine whether the listening signal is a listening signal sent by a listening device, and the method comprises:

the radio frequency module is configured to process the received monitoring signal to obtain characteristic information corresponding to the monitoring signal, wherein the processing of the monitoring signal is radio frequency domain processing of the monitoring signal;

the radio frequency module is configured to transmit the characteristic information to the processor,

the processor is configured to determine whether the interception signal is an interception signal issued by an eavesdropper according to the characteristic information.

4. The electronic device of claim 3, wherein the feature information comprises at least one of: the in-phase and quadrature I/Q information of the monitoring signal and the received signal strength indicator RSSI of the monitoring signal.

5. The electronic device of claim 3 or 4, wherein the characterization information comprises the RSSI;

the processor is configured to determine whether the interception signal is an interception signal sent by an eavesdropper according to the characteristic information, and comprises the following steps:

in the event that the RSSI is greater than a first RSSI threshold, the processor is configured to determine that the listening signal is the tapped signal; alternatively, the first and second electrodes may be,

in the event that the RSSIs are both greater than a second RSSI threshold for a preset duration, the processor is configured to determine that the listening signal is the eavesdropping signal.

6. The electronic device according to claim 5, wherein before the processor determines whether the interception signal is an interception signal issued by an eavesdropper according to the characteristic information,

the processor is further configured to determine that the listening signal is transmitted through a global system for mobile electronics (GSM) network, or the processor is further configured to determine that the listening signal is transmitted through the GSM network through the radio frequency module.

7. The electronic device of any of claims 3-6, wherein the characterization information comprises the I/Q information;

in the event that the I/Q information indicates that the listening signal matches the detected sound signal, the processor is configured to determine whether the listening signal is a listening signal issued by a listening device.

8. The electronic device of any one of claims 1-7, wherein the RF module comprises at least one switching module, the operating state of the switching module comprises a first switching state and a second switching state,

the radio frequency module also comprises a detection module;

in a case that the operating state of the switching module is the first switch state, the switching module is configured to couple the antenna module and the detection module, and the electronic device operates in the radio monitoring state;

in the radio interception state, the antenna module receives the interception signal, transmits the interception signal to the detection module through the switching module, and the detection module is configured to acquire characteristic information of the interception signal and transmit the characteristic information to the processor, so that the processor determines whether the interception signal is an intercepted signal according to the characteristic information.

9. The electronic device of claim 8, wherein the radio frequency module comprises at least one radio frequency transmission path; the antenna module comprises at least one first antenna corresponding to the frequency of the radio frequency transmission channel;

under the condition that the working state of the switching module is the second switching state, the switching module is configured to couple the first antenna and the radio frequency transmission path, and the electronic device works in the working state;

when the electronic device works in the working state, the electronic device is configured to perform normal communication data transceiving, and the method comprises the following steps:

in the working state, the radio frequency transmission path is configured to transmit a transmission signal to the first antenna through the switching module for transmission of the transmission signal.

10. The electronic device of claim 8, wherein the radio frequency module comprises at least one radio frequency receiving channel; the antenna module comprises at least one second antenna corresponding to the frequency of the radio frequency receiving channel;

under the condition that the working state of the switching module is the second switch state, the switching module is configured to couple the second antenna and the radio frequency receiving path, and the electronic device works in the working state;

in the operating state, the second antenna is configured to transmit a reception signal to the radio frequency reception path through the switching module.

11. The electronic device of claim 10, wherein the radio frequency receive path is a diversity radio frequency receive path.

12. The electronic device according to any of claims 8-10, wherein the detection module is a radio frequency receive path in the radio frequency module or the detection module is a measurement receiver MRX in the radio frequency module.

13. The electronic device of any of claims 8-12, wherein the switching module comprises at least one of:

the radio frequency module comprises a bidirectional coupler in the radio frequency module, a coupler in the radio frequency module and a change-over switch.

14. The electronic device of any of claims 1-13,

the electronic device receives a first operation of a user, the first operation is configured to instruct the electronic device to conduct radio monitoring, and in response to the first operation, the electronic device switches a current working state to the radio monitoring state.

15. The electronic device of any of claims 1-14,

before the electronic device works in the radio monitoring state, the electronic device is in a flight offline state, or the electronic device switches the working state to the flight state;

alternatively, the first and second liquid crystal display panels may be,

the electronic device is configured with Discontinuous Reception (DRX), and the electronic device switches the current working state to the radio monitoring state when the electronic device is in a sleep state sleep of the DRX configuration.

16. A communication system applied to an electronic device, the communication system being configured to provide a radio monitoring function of the electronic device; the communication system includes:

the antenna module comprises a processor, a radio frequency module and an antenna module;

the operating state of the communication system comprises a radio monitoring state;

in the radio monitoring state, the antenna module is configured to receive a listening signal;

the radio frequency module and the processor are configured to receive the monitoring signal from the antenna module; and when the interception signal is an interception signal sent by an eavesdropper, the electronic equipment prompts.

17. The communication system according to claim 16, wherein in the radio monitoring state, the electronic device further transmits a detection sound signal,

18. A communication method is applied to electronic equipment, the working state of the electronic equipment comprises a radio monitoring state and a working state, and the electronic equipment is provided with a processor, a radio frequency module and an antenna module; the method comprises the following steps:

when the electronic equipment works in the radio monitoring state, the antenna module receives a monitoring signal;

the radio frequency module and the processor receive the monitoring signal from the antenna module;

when the monitoring signal is a wiretap signal sent by a wiretap, the electronic equipment prompts;

and when the electronic equipment works in the working state, the electronic equipment receives and transmits normal communication data.

19. The communication method according to claim 18, wherein in the radio monitoring state, the method further comprises:

the electronic device transmits a detection sound signal,

20. The method according to claim 18 or 19, wherein the determining whether the listening signal is a listening signal sent by a listening device by the rf module and the processor comprises:

the radio frequency module processes the received monitoring signal to acquire characteristic information corresponding to the monitoring signal, wherein the processing of the monitoring signal is the radio frequency domain processing of the monitoring signal;

the radio frequency module transmits the characteristic information to the processor,

and the processor determines whether the interception signal is an interception signal sent by an eavesdropper or not according to the characteristic information.

21. The communication method according to claim 20, wherein the feature information comprises at least one of: the in-phase and quadrature I/Q information of the monitoring signal and the received signal strength indicator RSSI of the monitoring signal.

22. The communication method according to claim 20 or 21, wherein the characteristic information includes the RSSI;

the processor determines whether the interception signal is an interception signal sent by an eavesdropper according to the characteristic information, and the method comprises the following steps:

in the event that the RSSI is greater than a first RSSI threshold, the processor determining that the listening signal is the intercepted signal; alternatively, the first and second liquid crystal display panels may be,

and under the condition that the RSSI is greater than a second RSSI threshold value within a preset time length, the processor determines that the monitored signal is the wiretap signal.

23. The method according to claim 22, wherein before said processor determines whether said interception signal is an interception signal issued by an eavesdropper according to said characteristic information, said method further comprises:

the processor determines that the monitoring signal is sent through a global system for mobile communications (GSM) network, or the processor determines that the monitoring signal is sent through the GSM network through the radio frequency module.

24. The communication method according to any one of claims 18 to 23,

alternatively, the first and second liquid crystal display panels may be,

25. A computer-readable storage medium, comprising computer instructions which, when executed, perform the communication method of any one of claims 18-24.

26. A system-on-chip, the system-on-chip comprising an interface circuit and a processor; the interface circuit and the processor are interconnected through a line; the interface circuit is configured to receive signals from the memory and send signals to the processor, the signals including computer instructions stored in the memory; the chip system performing the communication method according to any one of claims 18-24 when the processor executes the computer instructions.