CN114915355B

CN114915355B - Communication system and electronic device

Info

Publication number: CN114915355B
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: 2023-11-03
Anticipated expiration: 2041-02-10
Also published as: CN114915355A

Abstract

The embodiment of the application discloses a communication system and electronic equipment, relates to the field of communication, and solves the problems of high cost and inconvenience in radio monitoring by using professional radio monitoring equipment. 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. The electronic device prompts when the listening signal is a eavesdropping signal sent by an eavesdropper. When the electronic equipment works in the working state, the electronic equipment performs normal communication data receiving and transmitting.

Description

Communication system and electronic device

Technical Field

Embodiments of the present application relate to the field of communications, and in particular, to a communication system and an electronic device.

Background

As users become more conscious of protection 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 acquired through an eavesdropper, a tracker and other electronic components.

Currently, to perform radio monitoring, specialized radio monitoring equipment is required. This results in an increase in the cost of radio monitoring. Meanwhile, the radio monitoring equipment needs to be carried independently, so that the radio monitoring equipment is not convenient enough.

Disclosure of Invention

The embodiment of the application provides a communication system and electronic equipment, which solve the problems of high cost and insufficient convenience of radio monitoring by using professional radio monitoring equipment.

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

in a first aspect, an electronic device is provided, the operating state of which includes 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 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 monitor signal from the antenna module. And when the monitoring signal is an eavesdropping signal sent by the eavesdropper, the electronic equipment prompts. When the electronic equipment works in the working state, the electronic equipment is configured to perform normal communication data transceiving.

Based on this scheme, an electronic device capable of 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 communication of the user, such as transceiving relevant data during communication of voice and/or data. The electronic device provided in the embodiment of the application can work in a radio monitoring state besides the normal communication function. In the radio monitoring state, the electronic equipment can monitor the monitoring signal through the processor, the radio frequency module and the antenna module arranged in the radio monitoring state, and determine whether the eavesdropper exists according to the monitoring signal. It can be understood that, because all 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 scheme provided by the embodiment of the application can provide a radio monitoring function under the condition of multiplexing all existing components in the current electronic device. Therefore, a user can monitor the radio without using professional radio monitoring equipment, and the radio monitoring is more convenient and faster while the cost is saved. In the embodiment of the present application, the working state of the electronic device may also be referred to as a normal working state. In this normal operating state, the electronic device may be used for transmitting and receiving relevant signals of voice and/or data.

In one 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 transmits the detection sound signal, and the eavesdropping signal is transmitted after the electronic device transmits the detection sound signal. Based on this scheme, a possible implementation of radio monitoring is provided. For example, the electronic device may emit a detection sound signal during radio monitoring, which may be preset music, or a sound signal of a conversation of the user, or the like. It will be appreciated that the eavesdropper will typically interact with the network device after hearing the sound signal, such as by sending the monitored signal to the network device without interruption. Thus, the electronic equipment can activate the eavesdropper to emit signals through the detection sound signals, and therefore the signal emission 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 sent by other means. For example, the electronic device may prompt the user to play music using other electronic devices, or prompt the user to occur by themselves, thereby activating the eavesdropper to begin operation.

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 eavesdropping signal emitted by an eavesdropper, comprising: the radio frequency module is configured to process the received monitoring signal to obtain feature 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 monitoring signal is an eavesdropping signal emitted 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 radio frequency module for processing in an radio frequency domain, so as to extract feature information corresponding to the listening signal. The processor may obtain the characteristic information and determine therefrom whether the listening signal is an eavesdropping signal emitted by an eavesdropper. It will be appreciated that when the listening signal is an eavesdropping signal, then it may be determined that an eavesdropper is present in the current environment, thereby achieving the goal of radio monitoring.

In one possible design, the characteristic information includes at least one of: in-phase quadrature I/Q information of the listening signal, the received signal strength of the listening signal indicating RSSI. Based on this scheme, an example of specific feature information is provided. For example, the characteristic information may include RSSI and/or I/Q signals. It will be appreciated that, in some embodiments of the application, the radio frequency integrated circuit (Radio Frequency Integrated Circuit, RFIC) may also transmit I/Q information to the baseband configured to determine if the snoop signal is an eavesdropping signal, as opposed to the interaction of information between the radio frequency module and the processor during normal communications (e.g., the RFIC may transmit RSSI to the baseband). Of course, in some embodiments of the application, the RFIC may also transmit the RSSI to the baseband so that the baseband may determine from the RSSI whether the listening signal is suspicious or is an eavesdropping signal.

In one possible design, the characteristic information includes the RSSI. The processor is configured to determine, based on the characteristic information, whether the snoop signal is an eavesdropping signal emitted by an eavesdropper, comprising: 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, the processor is configured to determine that the listening signal is the eavesdropping signal if the RSSI is greater than a second RSSI threshold for a preset period of time. Based on this scheme, a specific scheme of judging whether the listening signal is an eavesdropping signal (or whether the listening 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, the electronic device may determine that the listening signal is an eavesdropping signal or that the listening signal is suspicious, according to the signal strength that needs to be used in a normal communication process in which the signal strength of the listening signal exceeds the first RSSI threshold. In other embodiments of the present application, the electronic device may determine that the listening signal is not a signal in normal communication (the signal strength in normal communication will not normally stay within a certain interval all the time) in the case where the RSSI of the listening signal indicates that the signal strength of the listening signal is always within a certain interval (for example, greater than the preset second RSSI threshold), thereby determining that the listening signal is an eavesdropping signal.

In one possible design, before the processor determines, based on the characteristic information, whether the listening signal is a eavesdropping signal issued by an eavesdropper, the processor is further configured to determine that the listening signal is being transmitted over a global system for mobile electronic devices GSM network, or the processor is further configured to determine, via the radio frequency module, that the listening signal is being transmitted over a global system for mobile electronic devices GSM network. Based on this scheme, a specific application scenario example of a scheme of determining whether the listening signal is an eavesdropping signal through RSSI is provided. In this example, when the eavesdropping signal is a signal transmitted by the eavesdropper through the GSM network, the electronic device can determine whether the listening signal is an eavesdropping signal through the scheme of designing the RSSI described above. It will be appreciated that the signals from the current eavesdroppers are all sent over the GSM network, and that normal communications over the GSM network are for some time interval. Thus, in this example, the electronic device may determine whether the listening signal is a eavesdropping signal based on the difference in RSSI between 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, based on the characteristic information, whether the snoop signal is an eavesdropping signal emitted by an eavesdropper, comprising: 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 an eavesdropping signal emitted by an eavesdropper. Based on this scheme, an example of further feature information is provided. In this example, the RFIC may send I/Q information of the snoop signal to baseband. It will be appreciated that the baseband may determine signal characteristics of the listening signal, such as amplitude, phase, time/frequency domain distribution characteristics, signal strength, etc. of the listening signal based on 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 activating 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 an eavesdropping signal emitted by an eavesdropper. It should be noted that, the scheme may not be limited by the network system of the eavesdropping signal transmission.

In one possible design, the radio frequency module includes at least one switching module, the working state of the switching module includes a first switch state and a second switch state, and the radio frequency module further includes a detection module. In the case that the operating state of the switching module is the first switch state, the switching module is configured to be coupled to the antenna module and the detecting 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 can determine whether the monitoring signal is an eavesdropping 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 electric connection relation between different components in the antenna module and the radio frequency module. For example, in the radio monitoring mode, the switching module may operate in a first switch state. In this scenario, the switching module may be used 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 snoop signal to the processor, so that the processor can determine whether the snoop signal is an eavesdropping signal emitted by the eavesdropper according to the characteristic information. 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 bi-directional coupler).

In one possible design, the radio frequency module includes at least one radio frequency transmit path. The antenna module comprises at least one first antenna corresponding to the frequency of the radio frequency transmission path. And under the condition that the working state of the switching module is the second switch state, the switching module is configured to be coupled with the first antenna and the radio frequency transmission path, and the electronic equipment works in the working state. When the electronic equipment works in the working state, the electronic equipment is configured to perform normal communication data receiving and transmitting, and comprises: in the operating 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. Based on this scheme, a further mode of operation of the switching module is provided. In this example, the switching module may operate in a second switch state. In the second switch state, the switching module may be coupled to the rf transmission path and the antenna in the corresponding antenna module. Thus, 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 will be appreciated that the radio frequency transmit path is correspondingly disposed on the transmission link of the primary set of data. That is, in this example, the switching module may be disposed on a transmit path on the primary set data transmission link.

In one possible design, the radio frequency module includes at least one radio frequency receive path. The antenna module comprises at least one second antenna corresponding to the frequency of the radio frequency receiving path. And under the condition that the working state of the switching module is the second switch state, the switching module is configured to be coupled with the second antenna and the radio frequency receiving path, and the electronic equipment works in the working state. In the operating state, the second antenna is configured to transmit a received signal to the radio frequency receiving path through the switching module. Based on the scheme, a setting mode of a switching module is provided. In this example, the switching module may be disposed on the radio frequency receive path. The radio frequency receiving path may be a radio frequency receiving path of a main set link or a radio frequency receiving path of a diversity link.

In one possible design, the radio frequency receive path is a diversity radio frequency receive path. Based on this scheme, an illustration of yet another radio frequency receive 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 include a receive path on the main set link and a receive path on the diversity link. In this example, the switching module is arranged on the radio frequency receiving path on the diversity link so as to ensure normal data transmission of the diversity link in a normal operating state. It will be appreciated that due to the introduction of the switching modules, certain transmission losses may be introduced for the corresponding links. In this example, the loss is shared among the diversity links, so that the effect of not affecting the data transmission of the main set link can be achieved.

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. Based on this scheme, a composition schematic of at least two detection modules is provided. In some embodiments, the detection module may be an 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 configured to extract characteristic information of the listening signal. In this example, the MRX function may be taken, or the functions of the corresponding modules on the receive link may be multiplexed.

In one possible design, the switching module includes at least one of: the two-way coupler in the radio frequency module, the coupler in the radio frequency module and the switch. Based on the scheme, a specific implementation of the switching module is provided. For example, the switching module may be a switch, such as a single pole single throw switch (Single Pole Single Throw, SPST), a single pole double throw (Single Pole Double Throw, SPDT) switch, etc., and the switching module may be a coupler on a link, or a bi-directional coupler, for example.

In one possible design, the electronic device receives a first operation by a user, the first operation 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 this scheme, a possible triggering mechanism for radio monitoring by the electronic device is provided. For example, a user may trigger the electronic device to operate in a radio monitoring state by inputting an operation (such as a first operation) to the electronic device for radio monitoring.

In one possible design, the electronic device is in a flight 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 this scheme, a possible implementation of radio monitoring status is provided. In this example, the electronic device may disconnect the current communication, i.e., issue an offline command, into 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 the sleep state sleep of the DRX configuration. Based on this scheme, a further possible implementation of radio monitoring status is provided. In this example, the electronic device may turn on the radio monitoring function in a corresponding sleep mode in a DRX configuration configured by the base station for the terminal device. In this way, in the sleep mode, the electronic equipment does not receive signals, 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, the communication method should be configured as an electronic device, the 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 monitoring signal is an eavesdropping signal sent by the eavesdropper, the electronic equipment prompts. When the electronic equipment works in the working state, the electronic equipment performs normal communication data receiving and transmitting.

In one possible design, in the radio monitoring state, the method further comprises: the electronic device transmits a detection sound signal, when a eavesdropper is arranged around the electronic device, the eavesdropper transmits the eavesdropping signal, and the eavesdropping signal is transmitted after the electronic device transmits the detection sound signal.

In one possible design, the rf module and the processor determine whether the snoop signal is an eavesdropping signal from an eavesdropper, comprising: the radio frequency module processes the received monitoring signal to obtain 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 an eavesdropping signal sent by the eavesdropper according to the characteristic information.

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

In one possible design, the characteristic information includes the RSSI; the processor determines whether the listening signal is an eavesdropping signal emitted 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 determines that the listening signal is the eavesdropping signal; alternatively, the processor determines that the listening signal is the eavesdropping signal if the RSSI is greater than a second RSSI threshold for a preset period of time.

In one possible design, before the processor determines whether the snoop signal is a eavesdropping signal issued by an eavesdropper based on the characteristic information, the method further comprises: the processor determines that the listening signal is sent over a global system for mobile electronic equipment GSM network, or the processor determines that the listening signal is sent over a global system for mobile electronic equipment GSM network through the radio frequency module.

In one possible design, the characteristic information includes the I/Q information; the processor determines whether the listening signal is an eavesdropping signal emitted 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 detected sound signal, the processor determines whether the listening signal is an eavesdropping signal emitted by an eavesdropper.

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

In one possible design, the electronic device is in a flight state before the electronic device 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 electronic device switches the current operating state to the radio monitoring state while in the sleep state sleep of the DRX configuration.

In a third aspect, a communication system is provided, the communication system being configured as an electronic device, the communication system being configured to provide radio monitoring functionality of the electronic device; the communication system includes: the device 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 monitoring signal is an eavesdropping signal sent by the eavesdropper, the electronic equipment prompts.

In one possible design, in the radio monitoring state, the electronic device also transmits a detection sound signal, which is emitted by the eavesdropper when the eavesdropper is provided around the electronic device, the emission of the eavesdropping signal being after the transmission of the detection sound signal by the electronic device.

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 eavesdropping signal emitted by an eavesdropper, comprising: the radio frequency module is configured to process the received monitoring signal to obtain feature 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 monitoring signal is an eavesdropping signal emitted by an eavesdropper according to the characteristic information.

In one possible design, the characteristic information includes the RSSI; the processor is configured to determine, based on the characteristic information, whether the snoop signal is an eavesdropping signal emitted by an eavesdropper, comprising: 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, the processor is configured to determine that the listening signal is the eavesdropping signal if the RSSI is greater than a second RSSI threshold for a preset period of time.

In one possible design, before the processor determines, based on the characteristic information, whether the listening signal is a eavesdropping signal issued by an eavesdropper, the processor is further configured to determine that the listening signal is being transmitted over a global system for mobile communications GSM network, or the processor is further configured to determine, via the radio frequency module, that the listening signal is being transmitted over a global system for mobile communications GSM network.

In one possible design, the characteristic information includes the I/Q information; the processor is configured to determine, based on the characteristic information, whether the snoop signal is an eavesdropping signal emitted by an eavesdropper, comprising: 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 an eavesdropping signal emitted by an eavesdropper.

In one possible design, the radio frequency module comprises at least one switching module, wherein the working state of the switching module comprises a first switch state and a second switch state, and the radio frequency module further comprises a detection module; when the working state of the switching module is the first switch state, the switching module is configured to be coupled with the antenna module and the detection module, and the communication system works 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 can determine whether the monitoring signal is an eavesdropping signal according to the characteristic information.

In one possible design, the radio frequency module includes at least one radio frequency transmission path, and the working state of the communication system further includes a working state; the antenna module comprises at least one first antenna corresponding to the frequency of the radio frequency transmission path; when the working state of the switching module is the second switch state, the switching module is configured to be coupled with the first antenna and the radio frequency transmission path, and the communication system works in the working state; in the operating 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 radio frequency module includes at least one radio frequency receiving path, and the working state of the communication system further includes a working state; the antenna module comprises at least one second antenna corresponding to the frequency of the radio frequency receiving path; in the 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 radio frequency receiving path, and the communication system operates in the operating state; in the operating state, the second antenna is configured to transmit a received signal to the radio frequency receiving 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 two-way coupler in the radio frequency module, the coupler in the radio frequency module and the switch.

In one possible design, the electronic device is in a flight 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, and the communication circuit should be configured as an electronic device, where the communication circuit includes at least one switching module, and an operating state of the switching module includes a first switching state and a second switching state, and the communication circuit further includes a detection module; when the working state of the switching module is the first switch state, the switching module is configured to be coupled with an antenna module and the detection module in the electronic equipment so that the electronic equipment works 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 a processor in the electronic device, so that the processor can determine whether the monitoring signal is an eavesdropping signal according to the characteristic 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 path; when the working state of the switching module is the second switch state, the switching module is configured to be coupled with the first antenna and the radio frequency transmission path so that the electronic equipment works in the working state; in the operating 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 path, 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 path; when the working state of the switching module is the second switch state, the switching module is configured to be coupled with the second antenna and the radio frequency receiving path so that the electronic equipment works in the working state; in the operating state, the second antenna is configured to transmit a received signal to the radio frequency receiving path through the switching module.

In one possible design, the detection module is a radio frequency receive 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 bi-directional coupler in the communication circuit, a coupler in the communication circuit, and a switch.

In a fifth aspect, a chip system is provided, the chip system comprising an interface circuit and a processor; the interface circuit and the processor are interconnected through a circuit; 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 the various possible designs.

In a sixth aspect, there is provided a computer readable storage medium comprising computer instructions which, when executed, perform a communication method as in the second aspect above and any of a variety of possible designs.

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

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

Drawings

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

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

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

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

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

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

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

Fig. 8 is a schematic diagram of a communication system according to another embodiment of the present application;

fig. 9 is a schematic diagram of a composition of a further communication system according to an embodiment of the present application;

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

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

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

fig. 13 is a schematic flow chart of a communication method according to an embodiment of the present application;

FIG. 14 is a schematic illustration 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 a radio monitoring system according to an embodiment of the present application;

fig. 18 is a timing diagram of radio monitoring according to an embodiment of the present application;

FIG. 19 is a timing diagram of yet another embodiment of a radio monitoring system;

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

Detailed Description

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

The terms "first" and "second" are used below for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present embodiment, unless otherwise specified, the meaning of "plurality" is two or more.

As the communication scene becomes more and more abundant, some situations occur that may cause the disclosure of private information of users. For example, in connection with fig. 1. The eavesdropper is used as an electronic component capable of eavesdropping on voice information of a user and uploading the voice information automatically, and privacy of the voice information of the user can be revealed due to the use of the electronic component. As shown in fig. 1, when a user inputs voice information using his terminal device (e.g., a mobile phone) or the user listens to voice information through his mobile phone, a eavesdropper provided at the periphery can monitor the voice information and transmit the voice information through an antenna provided thereon. For example, the eavesdropper may send the monitored voice information to a network device (e.g., a base station) via the global system for mobile communications (Global System for Mobile Communications, GSM). This obviously results in privacy disclosure of the user's voice information.

In order to prevent the above, the user can determine whether there is a eavesdropper around by radio monitoring so that the eavesdropper is detached or shielded in the case where the eavesdropper is provided around, thereby avoiding privacy disclosure of voice information.

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

However, current radio monitoring devices are mostly stand-alone devices. That is, in order to perform radio monitoring, the user needs to purchase the radio monitoring device separately and also needs to carry the radio monitoring device with him so as to perform radio monitoring in a desired scene. Obviously, this has the problem of high cost of radio monitoring and inconvenience of radio monitoring over time.

In order to solve the above-mentioned problems, an embodiment of the present application provides a radio monitoring scheme, in which a radio monitoring function is integrated in a terminal device (such as a mobile phone of a user). This eliminates the need for the user to purchase the radio monitoring device separately, thereby reducing the cost of radio monitoring. In addition, the user can carry the terminal equipment such as the mobile phone and the like, so that the user can monitor the radio at any time conveniently. In addition, the radio monitoring system provided by the application can reuse the existing components in the terminal equipment, so that the increase of the software/hardware cost of the terminal equipment is avoided.

The following describes the scheme provided by the embodiment of the application in detail with reference to the accompanying drawings.

It should be noted that the terminal device involved in the scheme provided by the embodiment of the present application may be an electronic device. By way of example, the electronic device may be a mobile terminal such as a mobile phone, a tablet computer, a wearable device, a vehicle-mounted device, an augmented reality (augmented reality, AR)/Virtual Reality (VR) device, a notebook computer, an ultra-mobile personal computer (UMPC), a netbook, a personal digital assistant (personal digital assistant, PDA), or the like, and the embodiment of the present application does not limit the specific type of the electronic device. In some implementations, the terminal device provided by the embodiment of the present application may be used to perform 2G and/or 3G and/or 4G and/or 5G and/or 6G based signal transceiving.

As an example, fig. 2 shows a schematic diagram of the composition of a communication system according to an embodiment of the present application. The communication system may be provided in an electronic apparatus 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. By way of example, the processor 210 may include one or more processing units, such as: processor 210 may include an application processor (application processor, AP), a Modem processor (Modem), a graphics processor (graphics processing unit, GPU), an image signal processor (image signal processor, ISP), a neural-network processor (neural-network processing unit, NPU), a controller, a digital signal processor (digital signal processor, DSP), a baseband, and/or a radio frequency integrated circuit, among others. The controller can generate operation control signals according to the instruction operation codes and the time sequence signals to finish 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 the processor 210 is comprised of a cache memory. The memory may hold instructions or data that the processor 210 has just used or recycled. If the processor 210 needs to reuse the instruction or data, it may be called directly from the memory. Repeated accesses are avoided and the latency of the processor 210 is reduced, thereby improving 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. Mobile communication technologies may include GSM, general packet radio service (general packet radio service, GPRS), code division multiple access (code division multiple access, CDMA), wideband code division multiple access (wideband code division multiple access, WCDMA), time division code division multiple access (time-division code division multiple access, TD-SCDMA), long term evolution (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, 5th-Generation New Radio, 5G technologies or 5G NR) and the like. Wireless communication technologies may include wireless local area networks (wireless local area networks, WLAN) (e.g., wireless fidelity (wireless fidelity, wi-Fi) networks), bluetooth (BT), global navigation satellite systems (global navigation satellite system, GNSS), frequency modulation (frequency modulation, FM), near field wireless communication technologies (near field communication, NFC), infrared technologies (IR), and the like.

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

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

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, baseband 211 may encode voice or other data signals into baseband signals (e.g., baseband codes) for transmission. The baseband 211 may transmit the baseband signal to the RFIC 212. The RFIC 212 may be configured to process the baseband signal to form a Transmit (TX) signal. In some implementations, 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 Received (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, baseband 211 may include components such as an encoder, decoder, and/or baseband controller. Wherein the encoder is used for synthesizing the 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 accomplish scheduling of encoding and decoding, communication between the encoder and decoder, and peripheral drivers (which may enable components other than baseband 211 by sending enable signals to components other than baseband 211), and so forth. In some examples, the baseband controller may be a Microprocessor (Microprocessor or Micro Central Processing Unit, MCU).

It is understood that baseband 211 may process digital signals such as baseband signals, and rf integrated circuit 212 may be used to process analog signals such as rf signals. In some embodiments, between the baseband 211 and the radio frequency integrated circuit 212, digital-to-analog/analog conversion components may be provided for digital-to-analog/analog conversion of data as it is transferred between the baseband 211 and the radio frequency integrated circuit 212. Of course, in other embodiments, the digital-to-analog conversion component may be integrated into the baseband 211 or the rf integrated circuit 212.

It should be noted that in some embodiments, baseband 211 and RFIC 212 may be integrated with other components of processor 210 in one integrated circuit. In some embodiments, baseband 211 and RFIC 212 may each be a separate device independent of 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 and the RFIC 212 are integrated in different integrated circuits, the baseband 211 and the RFIC 212 being packaged together, 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 implement conversion between analog signals and electromagnetic waves. For example, in signal transmission, the antenna module 230 may receive a transmission signal from the transmission module and transmit the transmission signal in the form of electromagnetic waves. For another example, during signal reception, the antenna module 230 may receive electromagnetic waves with corresponding frequencies in space, and convert the electromagnetic waves into analog signals (such as received signals) for transmission to the receiving module 222.

For example, the antenna module 230 may include multiple antennas or groups of antennas (where a group of antennas includes more than two antennas), each antenna or group of antennas may be configured to cover a single or multiple communication bands. Any one of the plurality of antennas 232 may be a single frequency or 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 particular implementations, the radiator of any one of the plurality of antennas 232 may include, but is not limited to, a metallic bezel of an electronic device, and/or a metallic back case, and/or a metallic component of other devices (e.g., cameras, etc.), etc. having conductive properties. The radiator of any one of the plurality of antennas 232 may also include a flexible circuit board (Flexible Printed Circuit, FPC) antenna, and/or a stamping (stamping) antenna, and/or a Laser-Direct-structuring (LDS) antenna, among other forms of components. In some implementations, any one antenna 232 of the plurality of antennas 232 may also be an on-chip (on-chip) antenna. In other implementations, the antenna module 230 may be further divided into a high frequency antenna group and a low frequency antenna group according to the operating frequency band of each antenna 232. The high-frequency antenna group may include one or more antennas 232 with higher operating frequencies, for example, the operating frequency band of these antennas 232 may be higher than 1.5GHz. Correspondingly, the low frequency antenna group may include one or more antennas 232 with low operating frequencies, 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. Wherein the main set antenna can be used for transmitting and receiving signals. Diversity antennas may be used for signal reception. Thereby realizing the effect of strengthening the downlink communication.

As shown in fig. 2, an antenna circuit 231 may also be included in the antenna module 230. 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. An adjustable device, such as an adjustable inductance, an adjustable capacitance, etc., may also be included in the matching circuit. The matching circuit may be used to adjust the impedance of the antenna 232. By tuning the matching circuit, the impedance of the antenna 232 may be as close as possible to the rf signal (e.g., 50 ohms, and 75 ohms, for example) over the operating frequency range. Thus, when the radio frequency signal is transmitted to the antenna 232, loss or reflection at the port position of the antenna 232 is reduced, thereby improving the radiation efficiency of the communication system. 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 fully share an 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 is used for performing processing in an rf domain (or called analog domain) on signals, so as to implement signal transceiving in cooperation with the antenna module 230 and the processor 210.

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

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

A frequency selective switch 223 may also be provided in the rf module 220. The frequency selective switch 223 may be disposed between the transmitting module 221 and the antenna module 230, or the frequency selective switch 223 may be disposed between the receiving module 222 and the antenna module 230. The frequency selective switch 223 may be used to implement frequency selection during signal transceiving. For example, a signaling procedure is taken as an example. The frequency selection switch 223 may perform frequency selection on the transmission signal transmitted by the transmission module, so as to filter out the analog signal outside the signal transmission frequency band. Thus, signals outside the effective carrier frequency are filtered out, and the effect of improving the quality of the transmitted signals is achieved. Correspondingly, taking the signal receiving process as an example, the frequency selection switch 223 may perform frequency selection on the received signal from the antenna module 230 to filter out the analog signal outside the signal transmission frequency band. In this way, signals outside the effective carrier frequency are filtered out, so that the amount of invalid data including noise signals in the received signals transmitted to the receiving module 222 is reduced, and the effect of improving the quality of the received signals is achieved. In some embodiments of the application, the function of the frequency selective switch 223 may be implemented by a diplexer and/or a combination of filters and switches.

In some embodiments of the present example, a coupler 224 may also be provided between the frequency selective switch 223 and the antenna module 230. The coupler 224 may be used to transmit a portion of the transmit signal to the detection module 225 during signal transmission so that the detection module 225 performs power control adjustment of the transmit signal based on the received transmit signal. For example, the detection module 225 is taken as an example of a measurement receiver (measurement receiver, MRX). The MRX may monitor the transmit signal from the 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 transmit power of the current transmit signal does not meet the interaction requirement, the processor 210 (e.g., the baseband 211) may be instructed to adjust the transmit power of the current transmit 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 (such as MRX) is disposed in the radio frequency module 220 as an example. In other embodiments of the present application, the detection module 225 may also be integrated into the processor 210 to implement the corresponding functionality.

In order to implement the above-mentioned function of multiplexing MRX for radio monitoring, in the communication system provided in the embodiment of the present application, a switching module 226 may also be provided. The switching module 226 may be configured to transmit the signal received by the antenna module 230 to the detecting module 225, so that the detecting module 225 performs data detection such as analysis 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 from a eavesdropper, it can be determined that a eavesdropper is present in the current environment. The electronic device provided with the communication system can alert the user for radio monitoring purposes. The process of determining the eavesdropper by the detection module 225 according to the above signal will be described in detail in the following method embodiments, which will not be described herein.

In the communication system provided by 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, may be partially or fully integrated in one component, or may be integrated with other components to implement the switching function. Illustratively, in some embodiments, the switching module 226 may be a single pole double throw (Single Pole Double Throw, SPDT) switch (hereinafter SPDT switch is simply referred to as SPDT). The SPDT may be used to turn on the coupler 224 and the antenna module 230 as shown in fig. 2 when transmitting and receiving signals, so that signals may be transferred from the transmitting module to the antenna module 230 or signals may be transferred from the antenna module 230 to the receiving module 222. In radio monitoring, the SPDT may be used to turn on the detection module 225 and the antenna module 230 as shown in fig. 2, so that the signal received by the antenna module 230 may be transmitted to the detection module 225 for corresponding data detection. In other embodiments, the switching module 226 may also perform its switching function through two or more single pole single throw (Single Pole Single Throw, SPST) switches. In other embodiments, the switching module 226 may implement its switching function through other types of components having switching functions.

In some embodiments, signal selection module 227 may be provided at the front end of detection module 225 due to the port count limit 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. As another example, when the signal selection module 227 may be in a radio monitoring state of the communication system as shown in fig. 2, the signal from the switching module 226 is transmitted to the detection module 225 to facilitate signal detection of the received signal by the detection module to determine whether the signal is a signal transmitted by an eavesdropper and, accordingly, whether there is an eavesdropper in the current environment. It will be appreciated that in other embodiments, if the MRX has a function of receiving multiple signals, the signal selecting module 227 may also be Jiang Jian, so that the device is simplified and the cost is reduced while ensuring that the MRX works normally.

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 situation 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 for example, 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 its operation mechanism in different scenarios will be described in detail.

From the foregoing, it will be appreciated that in the embodiments of the present application, the processor 210, the rf module 220, and the antenna module 230 cooperate to perform various functions associated with transmitting and receiving signals. For example, when the electronic device transmits a signal, the baseband 211 may load data to be transmitted on the digital signal by means of digital modulation, thereby acquiring a baseband signal corresponding to the data to be transmitted. The baseband signal is converted by the RFIC 212 to a transmit signal, wherein the transmit signal is an analog signal. The transmission signal may be processed by the rf domain of the rf module 220 and transmitted through the antenna module 230. Correspondingly, when the electronic device needs to receive a signal, the antenna module 230 sends the received signal to the radio frequency module 220 to perform radio frequency domain processing, and sends the processed received signal to the RFIC 212, the RFIC 212 processes the received signal into a baseband signal and sends the baseband signal to the baseband 211, and the baseband 211 converts the processed baseband signal into data and sends the data to the corresponding application processor 210, where the received signal is an analog signal. 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 signal reception is referred to as a reception link, and may be referred to as an RX link. When multiple RX links and/or TX links are included in a 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 also be provided on the TX link to facilitate power and waveform adjustment in the radio frequency domain before the transmit signal is transmitted to the antenna module 230. Similarly, one or more low noise amplifiers (low noise amplifier, LNA) and/or filters may be provided on the RX link to facilitate optimal adjustment of the receive signal to the radio frequency domain. 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 optimization adjustment of the radio frequency domain on the signal for radio monitoring, so as to obtain a more accurate data detection result according to the optimization adjustment.

In other embodiments of the application, the communication system of the electronic device may include more or less components than illustrated, or certain components may be combined, or certain components may be split, or different arrangements 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 by referring to the accompanying drawings. The schemes provided by the embodiments of the present application can be implemented in a communication system as shown in fig. 2 and the following fig. 3 to 9.

Fig. 3 is a schematic diagram of a specific composition of a communication system according to an embodiment of the present application. This fig. 3 may be illustrative of one specific implementation of the logic shown in fig. 2.

It will be appreciated that when the electronic device is required 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 paths. Different paths may be used for signal transmission at different frequencies.

As shown in fig. 3, n transmission paths and n reception paths may be included in the rf module 220, 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 RX1-RXn. In this example, the transmit and receive paths (transmit and receive paths) 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, transmit path TX1 may be coupled to frequency selective switch RFS1 with receive path RX 1. The transmit path TX2 may be coupled to a frequency selective switch RFS2 with the receive path RX 2. By analogy, the transmit path TXn may be coupled to a frequency selective switch RFSn with the receive path RXn.

In the embodiment of the application, the signal transmission link may include a corresponding signal transmission path. For example, a transmission link of a frequency (or a frequency band) may include a transmit path for transmitting signals at the frequency and a receive path for receiving signals at the frequency. The transmit path and the receive path corresponding to different frequencies (or frequency bands) are typically different. In the above description, the transmission path and the reception path are both for the main set signal transmission. In the case where the diversity signal transmission link is provided, a diversity reception path corresponding to one frequency (or one frequency band) may be included in addition to the transmission path and the reception path for the main set signal transmission by the user. Through the diversity reception path, the reception enhancement of the downlink signal at the frequency can be realized. In addition, 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 receive paths corresponding to each frequency may be referred to as a receive module, such as transmit module 222 shown in fig. 2.

In connection with the description of fig. 2 above, a coupler may be provided after the frequency selective switch to shunt a portion of the signal to the MRX during signal transmission to enable signal quality monitoring. 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 will be appreciated that in the example shown in fig. 3, a coupler is provided on the data transmission channel of each frequency, so that monitoring of the signal quality of the full frequency band can be achieved. In other embodiments of the present application, a coupler may be selectively disposed on a data transmission channel of a partial frequency, thereby implementing monitoring of signal quality of a primary frequency band. In the following description, a description will be given by taking, as an example, a case where corresponding couplers are provided on data transmission channels of all frequencies.

In the example shown in fig. 3, a corresponding switch may be provided on the TX/RX link to switch signals on the link, so as to control the communication system to operate in different operating states by switching the flow direction of signals from the antenna module 230 to the radio frequency module 220. For example, the operating state of the communication system may include a normal operating state, as well as a radio monitoring state. In a normal working 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 emitted by an eavesdropper). It will be appreciated that the set of multiple switches provided on multiple different TX/RX links may be referred to as a switch 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 or the like.

Illustratively, a TX1/RX1 link is used. A switch S1 may be provided at the rear end of the coupler C1 to which TX1/RX1 is coupled. In a normal operating state, the switch S1 can be used to turn on the coupler C1 and the antenna module 230. Thus, in signal transmission, the transmission signal from TX1 can be transmitted to the antenna module 230 through RFS1 and the coupler C1. In addition, the transmission signal may be further split into a part of the signal 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, in the radio monitoring state, the switch S1 may be used to turn on the MRX path and the antenna module 230. Thus, the antenna module 230 may transmit the received signal to the MRX path through the switch S1, so that it may be determined whether the eavesdropper exists in the current environment by determining whether the signal is a signal transmitted by the eavesdropper. It will be appreciated that other links (such as TX2/RX2 links, TXn/RXn links, etc.) as shown in fig. 3 may also be provided with respective corresponding switches, and similar switching procedures are performed through the above scheme, which is not repeated herein.

It should be noted that, as shown in fig. 3, the function of the signal selection module may be implemented by a single pole multiple 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 enough switching states, and meet the transmission requirements of signals to the MRX path corresponding to each TX/RX link in different working states.

In order to enable those skilled in the art to more clearly understand the solutions provided by the embodiments of the present application. Referring to fig. 4, a further communication system according to an embodiment of the present application is shown. In this example, the antenna module 230 is provided with a high-frequency antenna group (High band antenna, HBANT) and a Low-frequency antenna group (LBANT). In this example, corresponding to the arrangement in the antenna module 230, the radio frequency module 220 is correspondingly provided with radio frequency links corresponding to HBANT and LBANT, respectively, such as TX1/RX1 links corresponding to HBANT and TX2/RX2 links corresponding to LBANT as shown in fig. 4.

It is understood that an antenna provided in an electronic device may include a plurality of antennas. The plurality of antennas may include antenna groups operating in different frequency bands. For example, the plurality of antennas may include an LBANT composed of one or more antennas operating in a low frequency band, and for another example, the plurality of antennas may include an HBANT composed of 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 high frequency signal transceiving. For example, during signaling, TX1 may transmit a transmit signal (e.g., transmit signal 1) to HBANT via frequency selective switches RFS1 and C1 and S1. So that the transmission signal 1 is transmitted in the form of electromagnetic waves by the HBANT. Upon signal reception, the HBANT may receive an electromagnetic wave and convert the electromagnetic wave into an analog signal (such as 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 may transmit the rf domain processed received signal to back-end processor 210 for analysis, etc.

For a low-frequency link (such as a signal link corresponding to a TX2/RX2 link), in a normal working scenario, S2 in the switching module 226 may be used to turn on the LBANT and the coupler C2, thereby implementing low-frequency signal transceiving. The operation state is similar to that in the high frequency link, and will not be described here.

In the embodiment of the application, the communication system can work in a radio monitoring state besides the normal working state. In the context of this radio monitoring state, S1 in the switching module 226 may be used to turn on the HBANT and MRX paths for the high frequency link, thereby transmitting the monitored signal to the MRX path for signal detection, thereby enabling the wireless communication system to perform the function of radio monitoring. In some embodiments, when the number of signal receiving interfaces of the MRX is limited, as shown in fig. 4, a signal selection module ST may be disposed between the MRX path and S1, for example, the ST may implement its signal selection function through a single pole multiple throw switch. As an example, the HBANT may convert the received electromagnetic wave into an analog signal (such as the snoop signal 1), and the HBANT may transmit the snoop signal 1 to the MRX path through S1 and ST. The MRX may perform signal detection on the received listening signal 1 to determine that the listening signal 1 is an eavesdropping signal emitted by an eavesdropper if the listening signal 1 meets a preset rule. For example, since the signal transmitted from the eavesdropper to the base station is generally a continuous signal having a stable power output, it is possible to determine whether or not the listening signal 1 is an eavesdropping signal by determining whether or not the listening signal 1 has the above-described characteristics (e.g., continuous, uninterrupted, and/or stable signal power, etc.). An electronic device provided with the communication system can thereby determine that an eavesdropper is present in the current environment. In some embodiments, the electronic device may also issue an alert to the user (e.g., issue a reminder tone, and/or display a reminder interface on the interface, etc.). For the low frequency link, its operating 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 used to turn on the LBANT and MRX paths, thereby transmitting the monitored signal to the MRX path for signal detection, thereby enabling the wireless communication system to perform the function of radio monitoring. The specific implementation is similar and will not be described here again.

In the scheme shown in fig. 4, the antenna module 230 is described by taking the example of high-frequency division and low-frequency division according to the operating frequency band. In other embodiments, when the antenna module 230 includes a main set of antennas and a diversity antenna, the switching module 226 may be disposed on a main set signal transmission link corresponding to the main set of antennas, or may be disposed on a diversity signal transmission link corresponding to the diversity antenna.

Illustratively, the switching module 226 is disposed on the main set signaling path. With continued reference to fig. 4, tx1/RX1 may correspond to a primary set transmission link of the HBANT. Thus, the communication system can realize two working states of normal working state and radio monitoring state according to the above description. By this means, by adding the switching module 226 to the radio frequency module 220, a radio monitoring function of the electronic device provided with the communication system is realized. The user can then monitor the current environment for the presence of an eavesdropper by setting the electronic device to operate in a radio monitoring state when radio monitoring is desired. Therefore, under the condition that the electronic equipment is hardly 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 remarkably 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 connection with fig. 4, under normal operation, S3 may be used to couple HBANT and corresponding diversity receive path RX3. Thereby enabling the HBANT to transmit a received downstream signal, such as 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 (such as filtering) on the received signal 2 to achieve a denoising effect, thereby improving the signal quality of the received signal 2 transmitted to RX3. In other embodiments, when the signal quality of the received signal 2 is better, or the signal quality requirement of the RX3 on the received signal is not high, the RFS3 may be simplified, so as to achieve the purpose of saving cost. RX3 may process the received signal 2 in the radio frequency domain and transmit the processed received signal 2 to processor 210, so that processor 210 may parse the data carried in received signal 2 from received signal 2. Corresponding to the normal operating state, in the radio monitoring state S3 may be used to couple the HBANT as well as the MRX path. In some embodiments, as shown in fig. 5, ST may also be provided between S3 and MRX paths. This allows the HBANT to transmit the received snoop signal 2 to the MRX path via S3, ST. The processor 210 arranged at the back end of the MRX path may perform signal detection on the listening signal 2 to implement radio monitoring functions of the communication system as well as of the electronic device. For the low frequency link, the function and setting of S4 may refer to S3, which is not described herein.

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

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

In connection with the previous 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 application, the signal detection function in the radio monitoring state may also be implemented by the receive path. It will be appreciated that the receive paths (e.g., RX1, RX2, RXn, etc., as described above) may perform radio frequency domain processing of the received signal. The processing may include measuring signal strength of the received signal, etc. The receive path may also be used to determine whether the received signal is continuous, uninterrupted, etc. Thus, in this example, the switching module 226 may also transmit the snoop signal to the receive path in the radio monitoring state to enable signal detection of the snoop signal by the receive 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, no other valid data is received when the electronic device is in the radio monitoring state. Therefore, when the receiving path is used for detecting the signal of the monitoring signal, the problem that the monitoring signal and the received data in the normal working state are mutually influenced does not occur.

Fig. 6 is a schematic diagram of a communication system according to another embodiment of the present application. In this example, the RX path may signal detect the snoop signal in the radio monitoring state.

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

It should be noted that, in general, a data receiving interface is mostly disposed on the RX path. In order to ensure that the listening signal 3 is not affected by C1 and RFS1, in this example, a switch S7 may be provided after the data receiving interface of RX1. So that under the normal working state, S7 can be coupled with RX1 and RFS1 to perform normal transmission of received data; in the radio monitoring state, S7 may be coupled to S5 and RX1, so that S5 may directly transmit the listening signal 3 received by HBANT to RX1 through S7 without transmitting the listening signal 3 through RFS1 and/or C1, thereby ensuring the signal quality of the listening signal 3.

The foregoing description describes two operation states of the high frequency link shown in fig. 6 in detail, and it will be understood that the setting of the low frequency transmission link is similar to the operation state, and will not be repeated here.

By this means, the signal detection function of the multiplexed RX path can be maximized, and the signal processing pressure of the processor can be reduced. It can also be applied in some electronic devices where the MRX is not provided, without the need to separately introduce the relevant components of the MRX in order to implement the radio listening function.

In connection with the previous description of the main set transmission link and the diversity transmission link, in the description as shown in fig. 6, the switching module 226 including S5 and S6 is provided 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.

For example, please refer to fig. 7, which is a schematic diagram illustrating a composition 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 high frequency and low frequency listening signals. As shown in fig. 7, the switching module 226 may include S9 and S10 therein. Under normal operation, S7 may be used to couple HBANT and RFS3 disposed on diversity receive path RX3. Thereby realizing the normal receiving and transmitting of signals. Correspondingly, in the radio monitoring state, S7 may be used to couple HBANT and RX3. So that RX1 can receive a listening signal (such as listening signal 4) from HBANT in a radio monitoring state and perform signal detection on the listening signal 4. In connection with the foregoing description, in this example, a switch may be provided at the data receiving end of the diversity receiving path (e.g., RX 3) to adapt the inflow of signal streams in different operating states. For example, S11 may be set at the data receiving end of RX3. Under normal operating conditions, the S11 may be used to couple RFS3 and RX3 so that the received signal may flow normally into RX3. In the radio monitoring state, this S11 can be used to couple S9 and RX3, so that the listening signal 4 is transmitted by HBANT via S9 and S11 to RX3 for signal detection.

The setting of the two operating states on the corresponding low frequency link is similar to the setting of the operating states on the high frequency link described above and will not be described again here.

As shown in the scheme of fig. 7, the switching module 226 may be disposed on the diversity transmission link, so that the electronic device may have a radio monitoring function without affecting normal communication. The newly added change-over switches are arranged on the diversity receiving paths, so that the receiving and transmitting of the main set signals are not affected. In addition, similar to the foregoing fig. 6, since the multiplexing RX path performs signal detection of the listening signal without using the MRX path, the signal processing load associated with the MRX path can be reduced, and the method can be applied to an electronic device not provided with the MRX path.

It should be noted that, in the above example, the switching module 226 in the electronic device may implement the switching function through 1 or more switches. In different implementations of the application, the switching module 226 may implement a change in its switching state based on different control states. In some implementations, for a switching module 226 controlled by a General-purpose input/output interface (GPIO), the processor 210 or the baseband 211 in the electronic device may cause the switching module 226 to operate in different operating states by adjusting the state of the analog control signal on the GPIO control line. For example, the switch 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 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 a switching module 226 controlled through a mobile industry processor 210 interface (Mobile Industry Processor Interface, MIPI), the processor 210 or baseband 211 in the electronic device may operate in different operating states by controlling the state (e.g., set 0 or set 1) of the corresponding bit of the digital control signal transmitted on the MIPI signal line. The control instruction of the switching module 226 in the above example may be stored in the internal memory area of the processor 210 or the baseband 211, and may be fetched to the switching module 226 when the operation 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 that have 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 application does not limit the storage position of the control instruction.

As can be appreciated from the above description with respect to fig. 2-7, the radio monitoring function of the electronic device is implemented 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 also be integrated with other components, thereby implementing 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 diagram of a communication system according to another embodiment of the present application is shown. The difference from the solution shown in fig. 2 is that the solution shown in fig. 8 integrates the functionality of the switching module in the coupler.

It will be appreciated that in general, the coupler may shunt a portion of the transmit signal from the transmit module to the detect module (e.g., MRX) to monitor signal quality in the current communication. Whereas for signals from the antenna module 230, the coupler is in isolation. In this example, this characteristic of the coupler may be referred to as a forward conduction, reverse isolation characteristic corresponding to the transmission module. The forward conduction and reverse isolation characteristics of the coupler corresponding to the transmitting module prevent the conventional coupler from transmitting the 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 the radio monitoring state, so that the listening signal from the antenna module 230 may be transmitted to the MRX path through the coupler. In this scenario, the coupler will only transmit the listening signal to the MRX path, since the transmitting module does not transmit the signal, thus achieving signal switching.

In some embodiments of the present application, due to the reverse isolation characteristic of the coupler, even if the isolation in the radio monitoring state is reduced, a situation occurs in which the signal power of a part of the listening signal is small. Thus, in this example, LNA 228 may be provided between the coupler and the signal selection module coupled to the MRX path to facilitate low noise amplification of the signal from the coupler, to improve signal quality, and to facilitate signal processing by the MRX path.

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

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

In other embodiments of the present application, the integration of the functionality of the coupler with the switching module 226 may also be accomplished through the use of a bi-directional coupler. Due to the nature of the bidirectional coupler, the antenna module 230 can directly transmit the monitor signal to the detection module for signal detection in the radio monitoring state.

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. Taking the signal selection module as a switch ST as an example. As shown in fig. 9, in a normal state, the bi-directional coupler 229 may be used to transmit the transmission signals from the transmission modules to the antenna module 230 and to the detection module through ST, respectively. In the radio detection state, the bi-directional 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. Here, the antenna module 230 is provided with HBANTs and LBANTs as an example. A bi-directional coupler DC1 may be provided on the high frequency link. The DC1 can perform corresponding signal transmission in a normal operation state and a radio monitoring state, respectively. For example, in a normal operating state, DC1 may transmit a transmit signal from TX1 to HBANT for transmission. In this normal operating state, DC1 may also transmit a transmission signal to the MRX path via ST for signal detection during transmission. As another example, in the radio monitoring state table, DC1 may transmit a snoop signal from HBANT to the MRX path through ST to facilitate signal checking thereof.

Similar to the high frequency link, a DC2 may be provided on the low frequency link, which DC2 may be used to support the transmission of low frequency signals in both 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 functions of the coupler and the switching module 226. The link loss introduced by the need to add switching module 226 can thereby be avoided.

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

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

For example, please refer to fig. 11, which is a schematic diagram illustrating a composition of an electronic device 100 according to an embodiment of the present application. The electronic device 100 may include a processor 110, an external memory interface 120, an internal memory 121, a universal serial bus (universal serial bus, USB) interface 130, a charge 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, keys 190, a motor 191, an indicator 192, a camera 193, a display 194, and a subscriber identity module (subscriber identification module, SIM) card interface 195, etc. The sensor module 180 may include, among other things, a pressure sensor, a gyroscope sensor, a barometric 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 as shown in fig. 2-10. The antennas 1 and 2 may correspond to the antenna module 230 as shown in fig. 2-10.

It is to be understood that the configuration illustrated in this embodiment does not constitute a specific limitation on the electronic apparatus. In other embodiments, the electronic device may include more or fewer components than shown, or certain components may be combined, or certain components may be split, or different arrangements 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 recognize the hardware components 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 running 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 may be running in the electronic device.

In an operating system, applications may be installed. The user may instruct the implementation of the various functions of the electronic device by inputting instructions to the application. Fig. 12 illustrates exemplary software components of an electronic device according to 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. Wherein 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 instance, in this example, APP layer 1201 may be provided with a radio detection application. A file management system may be disposed in the framework layer 1202, where the file management system may be configured to invoke 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 kernel layer 1203 may include driving instructions of the respective 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 pass through a driver program of the kernel layer 1203, which needs to call hardware, so as to implement issuing of the code, so that the corresponding hardware is driven to execute a corresponding operation according to the instruction issued by the application program.

Illustratively, a radio monitoring application (e.g., referred to as APP 1) is provided in the application layer. APP1 may issue a first instruction to framework layer 1202 when it is desired to switch the electronic device to the radio monitoring state. The framework layer 1202 may issue the internal execution code corresponding to the first instruction to the switch in the hardware layer 1204 through the kernel layer 1203. The switch may be a switch in a switch module in the communication system in the foregoing description. The internal execution code may be a code corresponding to the first instruction that controls the state of each of the switches. When the change-over switch receives the internal execution code, 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 will be appreciated that the functions of the APP layer 1201, framework layer 1202, and kernel layer 1203 included in the above software composition may be implemented in the processor in the foregoing description.

The communication method provided by the embodiment of the application can be applied to the communication system related to any one of fig. 2-10, the electronic device shown in fig. 11, or the software composition shown in fig. 12. Therefore, the wireless 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 needed for wireless monitoring at present are avoided.

The following describes a communication method provided in the present application with reference to an actual scenario, which is applied to an electronic device, and 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 apparatus receives a first operation of a user, the first operation being for instructing to turn on a radio monitoring function.

The first operation may be an operation of an application installed in the electronic device, for example. 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 application, the radio monitoring functionality in the electronic device may also be integrated in the operating system. For example, as shown in (b) of fig. 14, the user can see the radio detection function by entering into the setting interface of the electronic device. The user may click a button (e.g., button 1401) corresponding to the radio monitoring function to input the first operation.

S1302, in response to the first operation, the electronic device switches to operate in a radio monitoring state.

By way of example, in connection with fig. 5, the electronic device may cause the communication system to operate in a radio monitoring state by indicating a switch state to switch S3, S4 and ST. Taking the switch state of S3, S4, ST as the first state in the radio detection state and the switch state of S3, S4, ST as the second state in the normal operation state as an example. The APP layer of the electronic device may invoke components such as an AP and/or a Modem, and issue a first switch switching instruction that includes a first state. The Modem may issue the first switch switching instruction to S3, S4, and ST through the physical layer. S3, S4, ST may set the switching state to the first state according to the first switching instruction after receiving the first switching instruction. For example, in this 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 RFS4. Since the monitor signal may be one of a high-frequency signal and a low-frequency signal at the same time during the radio monitoring, ST can determine whether to turn on S3 and MRX paths or S4 and MRX paths according to the transmission of the signal. In other embodiments of the present application, the ST may also be in the first state, and fast switch between the corresponding ports S3 and S4 at a small interval, so that the ST may fast transmit the corresponding snoop signal to the MRX path for signal detection, whether the HBANT needs to transmit the snoop signal to the MRX path or the 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, an offline instruction is issued by the modem), so as to facilitate normal data processing on the listening signal.

Referring to fig. 15, upon switching to the radio detection state, the electronic device may display an interface 1501. The interface 1501 may prompt the user that radio monitoring is in progress. As shown in fig. 15, in some embodiments, image elements and/or a prompt box may be included in the interface 1501 for presenting the radio monitoring process to the user. For example, the image element may include 1502 as shown in FIG. 15. It should be noted that, in some embodiments of the present application, the image in the image element 1502 may be displayed to the user with a dynamic display 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 a 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 performing radio monitoring. As an example, the text information may include: radio monitoring is ongoing.

It will be appreciated that for most eavesdroppers, after sound is detected in the environment, information is sent to the network device (e.g. an eavesdropping signal) without interruption, so that the eavesdropped information is sent out. To enable activation of the eavesdropper to send an eavesdropping signal during radio monitoring, in some embodiments of the present application, the electronic device may actively make a sound during radio monitoring to trigger the eavesdropper to send an eavesdropping signal to the network device. The electronic device may monitor the eavesdropping signal to enable radio monitoring. For example, referring to fig. 16, during radio monitoring, the electronic device may play music through a speaker disposed therein to activate the transmission of information from the eavesdropper to 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 of the eavesdropper with the network device. The sound generated by the electronic device in the radio monitoring process may be a preset sound or a sound selected by a user.

As a possible implementation, the software composition in fig. 12 is combined. An application running in an application layer in the electronic device, such as a radio monitoring application, may issue instructions to the framework layer to play preset music. In response to the instruction, an application management system in the framework layer corresponding to the radio monitoring program may invoke a corresponding processing command in the memory (or external storage). The processing command may be issued to a corresponding component in the hardware layer through the kernel layer. For example, the preset music is played using a speaker in the electronic device. The processing command can be issued to the speaker through a driver corresponding to the speaker in the kernel layer. So that the speaker can call the corresponding preset music from the storage space (such as the memory, the external memory, etc.) of the electronic device to play according to the processing command. The playing parameters such as the speed, the volume and the like of playing the preset music can be preset according to system setting, and can also be set by a 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. Unlike the above-described scheme in which the radio monitoring application issues an instruction to play music for activating the eavesdropper, in other embodiments of the present application, when music needs to be played, the radio monitoring application may also prompt the user to control the current electronic device by itself through a voice prompt, an interface text prompt, or other prompt modes, or other electronic devices with music playing functions, so as to activate the eavesdropper to send eavesdropping signals.

When an eavesdropper is present in the current environment, the eavesdropper will send an eavesdropping signal to the network device. As shown in fig. 17 in conjunction with fig. 5, HBANT or LBANT in the electronic device may also receive a signal from the eavesdropper. The HBANT or LBANT may send the received snoop signal to the MRX path for the electronic device to analyze the snoop signal to determine whether the snoop signal is an eavesdropping signal from an eavesdropper.

Illustratively, the functionality of the detection module is implemented by a processor in the electronic device. A processor in the electronic device may determine whether the listening signal is an eavesdropping signal based on the signal strength, and/or behavior state, and/or time-domain spectral information of the listening signal.

In the embodiment of the application, in a radio monitoring state, the MRX path can transmit a monitoring 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 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 suspicious signal based on the RSSI of the listening signal. For example, the baseband may determine that the listening signal is a suspicious signal according to the RSSI of the listening signal when the RSSI is greater than a corresponding threshold. It should be noted that, in some embodiments of the present application, a plurality of thresholds corresponding to RSSI may be preset in the electronic device. The plurality of thresholds may divide the transmit signal power into a plurality of sections that do not overlap each other. The higher the transmission power interval the RSSI of the listening signal falls, the higher the degree of suspicion 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 may determine whether the listening signal is a suspicious signal according to the RSSI of the listening signal and the on/off timing of the music sent by the electronic device to activate the eavesdropper. For example, after the electronic equipment starts playing music, the RSSI of the monitoring signal is detected to be obviously enhanced; and/or the electronic device detects that the RSSI of the monitoring signal is obviously weakened after the playing of the music is closed, so that the behavior state of the monitoring signal can be considered to be close to that of the music activating the eavesdropper. The baseband may determine that the snoop signal is an 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 may determine the RSSI of the snoop signal based on the I/Q information of the snoop signal and determine whether the snoop signal is suspicious based thereon. Alternatively, the baseband may determine the RSSI of the listening signal based on the I/Q information of the listening signal, and determine whether the behavioral state of the listening signal is close to the behavioral state of the music activating the eavesdropper accordingly, 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 an eavesdropping signal according to the similarity of the frequency domain distribution to the frequency domain distribution of the music activating the eavesdropper. For example, when the frequency domain distribution of the listening signal has a similarity to the frequency domain distribution of the music activating the eavesdropper higher than a corresponding threshold value, then it may be determined that the listening signal is an eavesdropping signal.

It should be noted that the possible implementations shown in the above examples are not limiting as to the network state in which the eavesdropper transmits the eavesdropping signal. For example, when the eavesdropper performs transmission of eavesdropping signals through network states such as a GSM network, a WCDMA network, a TD-SCDMA network, a CDMA network, and an LTE network or an NR network, one or more of the above-described methods may be used to determine the presence of the eavesdropper.

In other embodiments of the present application, the electronic device may further employ a corresponding determination mechanism according to the network state used for the transmission of the listening signal. For example, the transmission of a listening signal over a GSM network is taken as an example. 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 from the characteristics of the snoop signal that the snoop signal is transmitted over the GSM network. 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 may determine whether the listening signal is an eavesdropping signal based on information of the listening signal. It will be appreciated that there is some gap in the transmission of ordinary communication signals in a GSM network in general. While the eavesdropper is not present in the process of transmitting the eavesdropping signal through the GSM network. Thus, in this example, the baseband may consider the listening signal as an eavesdropping signal when the transmit 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 the duration of the music activating the eavesdropper.

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

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

And S1303, when the electronic equipment determines that the eavesdropper exists in the current environment, the electronic equipment alarms to the user.

After the electronic device determines that the listening signal is an eavesdropping signal, it may be determined 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 a display screen to alert the user to 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 vibrations through a motor disposed therein. It should be appreciated that in particular implementations, alerts to users may be implemented using a combination of one or more of the above examples.

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 present 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 that operates 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 channels to realize normal data receiving and transmitting.

It can be seen that in the above description as shown in fig. 13, the electronic device can disconnect normal communication all the way through the radio monitoring process until the radio monitoring is finished. In other embodiments of the present application, the electronic device may also perform radio monitoring and normal communication in a time-sharing manner, not completely disconnecting normal communication during radio monitoring, but rather in the form of a fast cross-over of both. This enables data transmission and reception in normal communication to be performed during radio monitoring.

Illustratively, when the first operation is received, the electronic device is in a normal communication state. The electronic device may switch the operating state to the radio monitoring state in a sleep state (sleep) in discontinuous reception (Discontinuous Reception, DRX) during normal communication in response to the first operation. In the awake state (wake up) in DRX, the electronic device may switch the operating state to the normal operating state. Thus, radio monitoring in the sleep state can be achieved while normal operation in the awake state is not affected.

It is appreciated that the electronic device may receive signals through a DRX configuration in order to achieve power savings. By way of example, by configuring DRX, the electronic device may periodically enter a sleep state (sleep mode) without listening to the physical downlink control channel (Physical Downlink Control Channel, PDCCH), and wake up (wake up) from the sleep state when listening is needed, so that the UE may 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, where the electronic device may receive signals corresponding to respective services 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 wake-up state and the sleep state are arranged in a crossing manner, so that the electronic equipment can obtain a rest for a period of time after receiving signals for a period of time, and then continue to receive the signals. That is, when the electronic device is configured with the DRX configuration, no signal is received in the sleep state. In this example, the electronic device may be in a sleep state, issuing instructions to the respective switch via the modem to operate in a first state for radio monitoring. Correspondingly, in the awake state, the electronic device can issue an instruction working 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 discontinuous reception (Connected mode DRX) configuration in a connected state.

In combination with the foregoing description, it can be seen that the radio monitoring scheme provided by the embodiment of the present application can enable the 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 an off-line state, i.e., issue an off-line (offly) command, before turning on the radio monitoring function, so that the electronic device stops normal communication (e.g., is 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 started, the electronic equipment can issue a switching command through the modem so that the corresponding device can switch the working state into the radio monitoring state, and therefore the electronic equipment can conduct radio monitoring. By way of example, fig. 18 shows a timing diagram of this embodiment. That is, in this example, the electronic device may be off-line and on-the-fly for radio monitoring. Correspondingly, after radio monitoring is completed, the electronic device may resume normal communication, such as issuing an online command, to bring the electronic device into an online state.

In other embodiments, the electronic device may also implement radio listening without issuing a command to disconnect from the network (e.g., offline). In some implementations of the present embodiment, the electronic device may be always online while implementing the function of radio monitoring. 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 mode, the electronic device will not monitor for signals and therefore may perform radio monitoring normally. Correspondingly, when the electronic equipment enters a wake up state corresponding to the DRX configuration, the electronic equipment can switch the current working state to a normal working state so as to provide normal communication functions for a user. In this way, the electronic device can provide the radio monitoring function to the user without affecting the normal communication. By way of example, fig. 19 shows a timing diagram of this embodiment. It can be seen that the electronic device can respectively work in different working states in different periods (such as sleep period and wake up period) corresponding to the DRX configuration, so that a normal communication function and a radio monitoring function are provided for a user at the same time under the condition that the user does not feel the same.

Fig. 20 shows a schematic diagram of the composition of a chip system 2000. The chip system 2000 may include: a processor 2001 and a communication interface 2002 for supporting the relevant devices to implement the functions referred to in the above embodiments. In one possible design, the system on a chip also includes memory to hold the necessary program instructions and data for the terminal. The chip system can be composed of chips, and can also comprise chips and other discrete devices. It should be noted that, in some implementations of the 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 above method embodiment may be cited to the functional description of the corresponding functional module, which is not described herein.

The functions or acts or operations or steps and the like in the embodiments described above 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. When the computer program instructions are loaded and executed on a computer, the processes or functions described in accordance with embodiments of the present application are produced in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by a wired (e.g., coaxial cable, fiber optic, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device including one or more servers, data centers, etc. that can be integrated with the medium. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a Solid State Disk (SSD)), or the like.

Although the application has been described in connection with specific features and embodiments thereof, it will be apparent that various modifications and combinations thereof can be made without departing from the scope of the application. Accordingly, the specification and drawings are exemplary illustrations of the application as defined by the appended claims and are considered 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 modifications and variations can be made to the present application without departing from the scope of the application. Thus, it is intended that the present application also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims

1. An electronic device, wherein the operating state of the electronic device includes a radio monitoring state and an operating 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 eavesdropping signal sent by an eavesdropper, the electronic equipment prompts;

When the electronic equipment works in the working state, the electronic equipment is configured to transmit and receive communication data through the processor, the radio frequency module and the antenna module;

wherein the radio frequency module comprises at least one switching module, the working state of the switching module comprises a first switch state and a second switch state,

the radio frequency module further comprises a detection module;

when the working state of the switching module is the first switch state, the switching module is configured to be coupled with the antenna module and the detection module, and the electronic equipment works in the radio monitoring state; when the working state of the switching module is the second switch state, the electronic equipment works in the working state;

in the radio monitoring state, the antenna module receives the monitoring signal, the monitoring signal is transmitted to the detection module through the switching module, the detection module is configured to acquire characteristic information of the monitoring signal, and the characteristic information is transmitted to the processor, so that the processor can conveniently determine whether the monitoring signal is an eavesdropping signal according to the characteristic information.

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 device, the eavesdropping signal is emitted by the eavesdropper, and the emission of the eavesdropping signal is performed after the electronic device sends the detection sound signal.

3. The electronic device of claim 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 an eavesdropping signal emitted by an eavesdropper, comprising:

the radio frequency module is configured to process the received monitoring signal to obtain feature 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 listening signal is an eavesdropping signal emitted by an eavesdropper based on the characteristic information.

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

5. The electronic device of claim 4, wherein the characteristic information comprises the RSSI;

the processor is configured to determine, based on the characteristic information, whether the listening signal is a eavesdropping signal emitted by an eavesdropper, comprising:

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; or alternatively, the process may be performed,

the processor is configured to determine that the listening signal is the eavesdropping signal if the RSSI is greater than a second RSSI threshold for a preset duration.

6. The electronic device of claim 5, wherein before the processor determines whether the snoop signal is an eavesdropping signal from an eavesdropper based on the characteristic information,

the processor is further configured to determine that the snoop signal is sent over a global system for mobile electronic device, GSM, network, or the processor is further configured to determine, via the radio frequency module, that the snoop signal is sent over a global system for mobile electronic device, GSM, network.

7. The electronic device of claim 4, wherein the characteristic 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 an eavesdropping signal emitted by an eavesdropper.

8. The electronic device of claim 1, wherein the radio frequency module includes at least one radio frequency transmit path; the antenna module comprises at least one first antenna corresponding to the frequency of the radio frequency transmission path;

when the working state of the switching module is the second switch state, the switching module is configured to be coupled with the first antenna and the radio frequency transmission path, and the electronic equipment works in the working state;

when the electronic equipment works in the working state, the electronic equipment is configured to perform normal communication data receiving and transmitting, 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 to transmit the transmission signal.

9. The electronic device of claim 1, wherein the radio frequency module includes at least one radio frequency receive path therein; the antenna module comprises at least one second antenna corresponding to the frequency of the radio frequency receiving path;

when the working state of the switching module is the second switch state, the switching module is configured to be coupled with the second antenna and the radio frequency receiving channel, and the electronic equipment works in the working state;

in the working state, the second antenna is configured to send a receiving signal to the radio frequency receiving channel through the switching module.

10. The electronic device of claim 9, wherein the radio frequency receive path is a diversity radio frequency receive path.

11. The electronic device of 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.

12. The electronic device of any of claims 8-10, wherein the switching module comprises at least one of:

The two-way coupler in the radio frequency module, the coupler in the radio frequency module and the change-over switch.

13. The electronic device of any one of claims 1-10, wherein,

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 the electronic device switches a current working state to the radio monitoring state in response to the first operation.

14. The electronic device of claim 1, wherein the electronic device comprises a memory device,

before the electronic equipment works in the radio monitoring state, the electronic equipment is in a flying state, or the electronic equipment switches the working state into the flying state;

or alternatively, the process may be performed,

the electronic equipment is configured with Discontinuous Reception (DRX), and the electronic equipment switches the current working state into the radio monitoring state under the condition of being in a sleep state sleep of the DRX configuration.

15. A communication system, wherein the communication system is 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 device comprises a processor, a radio frequency module and an antenna module;

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

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

when the monitoring signal is a eavesdropping 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 receiving and transmitting through the processor, the radio frequency module and the antenna module;

the radio frequency module further comprises a detection module;

16. The communication system of claim 15, wherein in the radio monitoring state, the electronic device further transmits a detection sound signal,

17. The communication method is characterized in that the 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;

the radio frequency module further comprises a detection module;

18. The communication method according to claim 17, characterized in that in the radio monitoring state, the method further comprises:

The electronic device transmits a detection sound signal,

19. The communication method of claim 18, wherein the radio frequency module and the processor determining whether the snoop signal is an eavesdropping signal from an eavesdropper comprises:

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

the processor determines whether the listening signal is an eavesdropping signal emitted by an eavesdropper according to the characteristic information.

20. The communication method according to claim 19, wherein the characteristic information includes at least one of: in-phase quadrature (I/Q) information of the monitoring signal, and the received signal strength of the monitoring signal indicates RSSI.

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

The processor determines whether the monitoring signal is an eavesdropping signal emitted 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 determines that the listening signal is the eavesdropping signal; or alternatively, the process may be performed,

and the processor determines that the monitoring signal is the eavesdropping signal under the condition that the RSSI is larger than a second RSSI threshold value within a preset duration.

22. The communication method of claim 21, wherein prior to the processor determining whether the snoop signal is an eavesdropping signal from an eavesdropper based on the characteristic information, the method further comprises:

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

23. The communication method according to claim 17, wherein,

Or alternatively, the process may be performed,

24. A computer readable storage medium, characterized in that the computer readable storage medium comprises computer instructions which, when run, perform the communication method according to any of claims 17-23.

25. A chip system, wherein the chip system comprises an interface circuit and a processor; the interface circuit and the processor are interconnected through a circuit; the interface circuit is configured to receive signals from the memory and to send signals to the processor, the signals including computer instructions stored in the memory; when the processor executes the computer instructions, the chip system performs the communication method according to any of claims 17-23.