CN116170783A - Signal interference detection processing method and communication terminal - Google Patents

Signal interference detection processing method and communication terminal Download PDF

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Publication number
CN116170783A
CN116170783A CN202111407054.6A CN202111407054A CN116170783A CN 116170783 A CN116170783 A CN 116170783A CN 202111407054 A CN202111407054 A CN 202111407054A CN 116170783 A CN116170783 A CN 116170783A
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Prior art keywords
nfc
signal
frequency
control strategy
received signal
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CN202111407054.6A
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Inventor
王永栋
冷鹏
何大武
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Hytera Communications Corp Ltd
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Hytera Communications Corp Ltd
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Priority to CN202111407054.6A priority Critical patent/CN116170783A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0231—Traffic management, e.g. flow control or congestion control based on communication conditions
    • H04W28/0236—Traffic management, e.g. flow control or congestion control based on communication conditions radio quality, e.g. interference, losses or delay
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Abstract

The application provides a signal interference detection processing method and a communication terminal, wherein the signal interference processing method comprises the following steps: detecting whether the NFC signal interferes with the received signal or not; and executing at least one of a first control strategy, a second control strategy and a third control strategy under the condition that the NFC signal exists, wherein the first control strategy is used for controlling the NFC to stop transmitting the NFC signal, the second control strategy is used for weakening the NFC signal, and the third control strategy is used for adjusting the working frequency of the NFC. The method solves the problem of low reliability of the signal interference processing method in the prior art.

Description

Signal interference detection processing method and communication terminal
Technical Field
The present invention relates to the field of signal interference technologies, and in particular, to a signal interference detection processing method and a communication terminal.
Background
In the case that the wireless communication terminal has a plurality of communication protocols and integrates a plurality of communication modules, the different communication modules may interfere with each other when simultaneously operating, and the degradation of the receiving sensitivity of the receiving signal caused by the NFC operation is a typical interference.
When a certain frequency multiplication relation exists between the receiving frequency of the communication terminal and the NFC working frequency, the NFC is started to possibly influence the normal receiving work of the narrow band, so that the voice conversation originally received normally is blocked or even interrupted.
The above information disclosed in the background section is only for enhancement of understanding of the background art from the technology described herein and, therefore, may contain some information that does not form the prior art that is already known in the country to a person of ordinary skill in the art.
Disclosure of Invention
The main purpose of the present application is to provide a signal interference detection processing method and a communication terminal, so as to solve the problem of low reliability of the signal interference processing method in the prior art.
According to an aspect of an embodiment of the present invention, there is provided a signal interference detection processing method, including: detecting whether the NFC signal interferes with the received signal or not; and executing any one of a first control strategy, a second control strategy and a third control strategy under the condition that the NFC signal interferes with the received signal, wherein the first control strategy is used for controlling NFC to stop transmitting the NFC signal, the second control strategy is used for weakening the NFC signal, and the third control strategy is used for adjusting the working frequency of NFC.
Optionally, detecting whether the NFC signal interferes with the received signal includes: acquiring the frequency of a received signal of a terminal to obtain a received frequency; determining whether the received signal has interference risk according to the received frequency; detecting an NFC working state, signal strength of the received signal and error rate of the received signal under the condition that the received signal is at risk of interference, wherein the working state comprises a normal working state, a standby state and a closing state; and determining whether the NFC signal interferes with the received signal or not according to the working state, the signal strength and the error rate.
Optionally, determining whether the received signal has a risk of interference according to the received frequency includes: determining that the received signal is at risk of interference if the received frequency is within a predetermined frequency range; in the event that the received frequency is not within the predetermined frequency range, it is determined that the received signal is not at risk of interference.
Optionally, determining whether the NFC signal interferes with the received signal according to the working state, the signal strength, and the bit error rate includes: determining that the NFC signal interferes with the received signal when the operating state is the standby state or the normal operating state, the signal strength is greater than a predetermined strength, and the error rate is greater than a predetermined value; and under the condition that any one or more of the working state is the closing state, the signal strength is smaller than or equal to the preset strength and the error rate is smaller than or equal to the preset value, determining that the NFC signal has no interference on the received signal.
Optionally, detecting whether the NFC signal interferes with the received signal includes: acquiring the frequency of a received signal of a signal receiving terminal to obtain a receiving frequency; detecting the working state of NFC, wherein the working state comprises a normal working state, a standby state and a closing state; detecting the signal strength and the error rate of the received signal; and determining whether the NFC signal interferes with the received signal or not according to the receiving frequency, the working state, the signal strength and the error rate.
Optionally, determining whether the NFC signal has interference to the received signal according to the receiving frequency, the operating state, the signal strength, and the bit error rate includes: determining that the NFC signal interferes with the received signal when the received frequency is within a predetermined frequency range, the operating state is the standby state or the normal operating state, the signal strength is greater than a predetermined strength, and the error rate is greater than a predetermined value; and under the condition that the receiving frequency is not in the preset frequency range, the working state is the closing state, the signal strength is smaller than or equal to the preset strength and the error rate is smaller than or equal to any one or more of the preset value, determining that the NFC signal has no interference on the receiving signal.
Optionally, the process of executing the first control strategy includes one or more of: adjusting the working mode of the NFC to a card reader mode; controlling the power supply of the NFC to be turned off; and controlling the NFC to enter a power-down mode or a low-power consumption mode.
Optionally, the process of executing the second control strategy includes: and controlling the radio frequency switch of the NFC output path to be grounded or open.
Optionally, the process of executing the third control strategy includes: and adjusting the NFC clock frequency, wherein the NFC clock frequency is the reference frequency of NFC operation.
According to still another aspect of the embodiments of the present invention, there is provided a communication terminal including a plurality of communication modules including NFC, the communication terminal including: a memory and a processor; the memory is connected with the processor and used for storing programs and data generated in the running process of the programs; the processor is configured to implement the following functions by running a program stored in the memory: detecting whether an NFC signal interferes with a received signal, and executing any one of a first control strategy, a second control strategy and a third control strategy under the condition that the NFC signal interferes with the received signal, wherein the first control strategy is used for controlling NFC to stop transmitting the NFC signal, the second control strategy is used for weakening the NFC signal, and the third control strategy is used for adjusting the working frequency of NFC.
In the method for detecting and processing signal interference in the embodiment of the present invention, firstly, whether an NFC signal interferes with a received signal is detected; then, under the condition that the NFC signal interferes with the received signal, executing any one of a first control strategy, a second control strategy and a third control strategy, wherein the first control strategy is used for controlling NFC to stop transmitting the NFC signal, the second control strategy is used for weakening the NFC signal, and the third control strategy is used for adjusting the working frequency of the NFC. The processing method provides three schemes of a first control strategy, a second control strategy and a third control strategy to reduce or avoid the influence of NFC interference signals, namely stopping transmitting the NFC interference signals to avoid the influence of the NFC interference signals, or weakening the NFC interference signals to reduce the influence of the NFC interference signals, and adjusting the working frequency of the NFC to avoid co-channel interference, so that a worker can flexibly select a proper processing scheme according to an application scene, the problem of poor reliability caused by single processing scheme is solved, and the problem of low reliability of the processing method of signal interference in the prior art is solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application. In the drawings:
FIG. 1 shows a flow chart of a signal interference detection processing method according to one embodiment of the present application;
fig. 2 is a schematic diagram of a processing method of signal interference performed by a communication terminal according to an embodiment of the present application;
fig. 3 shows a schematic diagram of a communication terminal according to an embodiment of the present application.
Detailed Description
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
In order to make the present application solution better understood by those skilled in the art, the following description will be made in detail and with reference to the accompanying drawings in the embodiments of the present application, it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All second embodiments obtained by a person of ordinary skill in the art without making any inventive effort based on the embodiments herein shall fall within the scope of protection of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe the embodiments of the present application described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It will be understood that when an element such as a layer, film, region, or substrate is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present. Furthermore, in the description and in the claims, when an element is described as being "connected" to another element, the element may be "directly connected" to the other element or "connected" to the other element through a third element.
As described in the background art, in order to solve the foregoing problem, in an exemplary embodiment of the present application, a signal interference detection processing method and a communication terminal are provided.
According to an embodiment of the application, a method for detecting and processing signal interference is provided.
Fig. 1 is a flowchart of a signal interference detection processing method according to an embodiment of the present application. As shown in fig. 1, the method comprises the steps of:
step S101, detecting whether the NFC signal interferes with the received signal;
step S102, executing any one of a first control policy, a second control policy and a third control policy when the NFC signal interferes with the received signal, where the first control policy is to control NFC to stop transmitting the NFC signal, the second control policy is to weaken the NFC signal, and the third control policy is to adjust the operating frequency of the NFC.
In the signal interference processing method, firstly, whether the NFC signal interferes with the received signal or not is detected; and executing any one of a first control strategy, a second control strategy and a third control strategy under the condition that the NFC signal interferes with the receiving signal, wherein the first control strategy is used for controlling NFC to stop transmitting the NFC signal, the second control strategy is used for weakening the NFC signal, and the third control strategy is used for adjusting the working frequency of the NFC. The processing method provides three schemes of a first control strategy, a second control strategy and a third control strategy to reduce or avoid the influence of NFC interference signals, namely stopping transmitting the NFC interference signals to avoid the influence of the NFC interference signals, or weakening the NFC interference signals to reduce the influence of the NFC interference signals, and adjusting the working frequency of the NFC to avoid co-channel interference, so that a worker can flexibly select a proper processing scheme according to an application scene, the problem of poor reliability caused by single processing scheme is solved, and the problem of low reliability of the processing method of signal interference in the prior art is solved.
It should be noted that the steps illustrated in the flowcharts of the figures may be performed in a computer system such as a set of computer executable instructions, and that although a logical order is illustrated in the flowcharts, in some cases the steps illustrated or described may be performed in an order other than that illustrated herein.
In one embodiment of the present application, detecting whether an NFC signal interferes with a received signal includes: detecting the frequency of a received signal of a signal receiving terminal to obtain a received frequency; determining whether the received signal has interference risk according to the received frequency; detecting an NFC working state, signal strength of the received signal and error rate of the received signal under the condition that the received signal is at risk of interference, wherein the working state comprises a normal working state, a standby state and a closed state; and determining whether the NFC signal interferes with the received signal according to the working state, the signal strength and the error rate. Specifically, whether the received signal has interference risk is determined according to the receiving frequency, and the working state of NFC, the signal strength of the received signal and the error rate of the received signal are further detected when the received signal has interference risk, so that whether the NFC signal has interference to the received signal is determined according to the working state, the signal strength and the error rate, and the NFC signal has no interference to the received signal when the received signal does not have interference risk.
In an embodiment of the present application, determining whether the received signal has an interference risk according to the received frequency includes: determining that the received signal has a risk of interference when the received frequency is within a predetermined frequency range; and determining that the received signal is not at interference risk in the case that the received frequency is not within the predetermined frequency range. Specifically, the frequency of the NFC signal is 13.56MHz, when the receiving frequency is in the range of a×13.56-b MHz to a×13.56+b MHz, where a is a positive integer, b may be set according to practical situations, for example, 1.5MHz, so that it may be determined that the receiving signal has an interference risk, otherwise, there is no interference risk, that is, the NFC signal does not have interference on the receiving signal.
In an embodiment of the present application, determining whether the NFC signal interferes with the received signal according to the operating state, the signal strength, and the bit error rate includes: determining that the NFC signal interferes with the received signal when the operating state is the standby state or the normal operating state, the signal strength is greater than a predetermined strength, and the bit error rate is greater than a predetermined value; and when any one or more of the operating state is the off state, the signal strength is less than or equal to the predetermined strength, and the bit error rate is less than or equal to the predetermined value, determining that the NFC signal does not interfere with the received signal. Specifically, when the interference risk exists in the received signal, the operating state, the signal strength and the bit error rate simultaneously satisfy a predetermined condition, that is, the operating state is the standby state or the normal operating state, the signal strength is greater than the predetermined strength and the bit error rate is greater than the predetermined value, it is determined that the NFC signal interferes with the received signal, and if not, it is determined that the NFC signal does not interfere with the received signal.
In fact, it may not be determined whether the received signal is at risk of interference, and in an embodiment of the present application, detecting whether the received signal is interfered by the NFC signal includes: acquiring the frequency of a received signal of a signal receiving terminal to obtain a receiving frequency; detecting the working state of NFC, wherein the working state comprises a normal working state, a standby state and a closing state; detecting the signal intensity and the error rate of the received signal; and determining whether the NFC signal interferes with the received signal according to the receiving frequency, the working state, the signal strength and the error rate. Specifically, the receiving frequency, the working state of the NFC, the signal strength and the bit error rate of the receiving signal are detected at the same time, then whether the NFC signal interferes with the receiving signal is determined directly according to the detection result, the process of determining whether the receiving signal has interference risk is reduced, and the efficiency is improved.
In an embodiment of the present application, determining whether the NFC signal interferes with the received signal according to the receiving frequency, the operating state, the signal strength, and the bit error rate includes: determining that the NFC signal interferes with the received signal when the received frequency is within a predetermined frequency range, the operating state is the standby state or the normal operating state, the signal strength is greater than a predetermined strength, and the bit error rate is greater than a predetermined value; and determining that the NFC signal does not interfere with the received signal when any one or more of the reception frequency is not within the predetermined frequency range, the operation state is the off state, the signal strength is less than or equal to the predetermined strength, and the bit error rate is less than or equal to the predetermined value occurs. Specifically, the receiving frequency, the operating state, the signal strength and the bit error rate simultaneously satisfy predetermined conditions, that is, the receiving frequency is within a predetermined frequency range, the operating state is the standby state or the normal operating state, the signal strength is greater than the predetermined strength and the bit error rate is greater than a predetermined value, it is determined that the NFC signal interferes with the receiving signal, and otherwise, it is determined that the NFC signal does not interfere with the receiving signal.
It should be noted that, a person skilled in the art may select a suitable predetermined strength and a predetermined error rate value according to practical situations to ensure accuracy of signal interference detection.
In one embodiment of the present application, the process of executing the first control strategy includes one or more of the following: adjusting the NFC working mode to a card reader mode; controlling the power supply of the NFC to be turned off; and controlling the chip where the NFC is positioned to enter a power-down mode or a low-power consumption mode. Specifically, the NFC can not send out the NFC signal under the card reader mode, the power of NFC is closed to and the chip that NFC is located gets into power down mode or low-power consumption mode and all can lead to NFC stop working, thereby can not send out the NFC signal, realize promptly that control NFC stops transmitting above-mentioned NFC signal, in order to avoid the interference.
In one embodiment of the present application, the process of executing the second control strategy includes: the radio frequency switch controlling the output path of the NFC is grounded or opened. Specifically, the radio frequency switch controlling the output path of the NFC is grounded or opened, so that the NFC signal can be weakened to reduce interference.
In one embodiment of the present application, the process of executing the third control strategy includes: and adjusting the NFC clock frequency, wherein the NFC clock frequency is the reference frequency of NFC. Specifically, the working frequency of NFC can be corrected by adjusting the frequency of the NFC clock, so that the frequency of NFC signals is adjusted, and the same-frequency interference is avoided.
The embodiment of the application also provides a signal interference detection processing device, and it should be noted that the signal interference detection processing device of the embodiment of the application can be used for executing the signal interference detection processing method provided by the embodiment of the application. The following describes a signal interference detection processing device provided in an embodiment of the present application.
Fig. 2 is a schematic diagram of a signal interference detection processing device according to an embodiment of the present application. As shown in fig. 2, the apparatus includes:
a detecting unit 10, configured to detect whether the NFC signal interferes with the received signal;
and a processing unit 20, configured to execute any one of a first control policy, a second control policy and a third control policy when the NFC signal interferes with the received signal, where the first control policy is to control NFC to stop transmitting the NFC signal, the second control policy is to weaken the NFC signal, and the third control policy is to adjust the operating frequency of the NFC.
In the signal interference processing device, the detecting unit detects whether the NFC signal interferes with the received signal; and the processing unit executes any one of a first control strategy, a second control strategy and a third control strategy under the condition that the NFC signal interferes with the receiving signal, wherein the first control strategy is used for controlling NFC to stop transmitting the NFC signal, the second control strategy is used for weakening the NFC signal, and the third control strategy is used for adjusting the working frequency of the NFC. The processing device provides three schemes of a first control strategy, a second control strategy and a third control strategy to reduce or avoid the influence of NFC interference signals, namely stopping transmitting the NFC interference signals so as to avoid the influence of the NFC interference signals, or weakening the NFC interference signals to reduce the influence of the NFC interference signals, adjusting the working frequency of the NFC to avoid co-channel interference, so that a worker can flexibly select a proper processing scheme according to an application scene, the problem of poor reliability caused by single processing scheme is solved, and the problem of low reliability of a signal interference processing method in the prior art is solved.
In an embodiment of the present application, the detection unit includes a first detection module, a first determination module, a second detection module, and a second determination module, where the first detection module is configured to detect a frequency of a received signal of the signal receiving terminal, to obtain a receiving frequency; the first determining module is configured to determine whether the received signal has an interference risk according to the receiving frequency; the second detection module is configured to detect an operating state of NFC, a signal strength of the received signal, and an error rate of the received signal when the received signal has a risk of interference, where the operating state includes a normal operating state, a standby state, and a closed state; the second determining module is configured to determine whether the NFC signal interferes with the received signal according to the working state, the signal strength, and the bit error rate. Specifically, whether the received signal has interference risk is determined according to the receiving frequency, and the working state of NFC, the signal strength of the received signal and the error rate of the received signal are further detected when the received signal has interference risk, so that whether the NFC signal has interference to the received signal is determined according to the working state, the signal strength and the error rate, and the NFC signal has no interference to the received signal when the received signal does not have interference risk.
In an embodiment of the present application, the first determining module includes a first determining submodule and a second determining submodule, where the first determining submodule is configured to determine that the received signal has a risk of interference when the received frequency is within a predetermined frequency range; the second determining submodule is used for determining that the received signal is not at interference risk under the condition that the received frequency is not in the preset frequency range. Specifically, the frequency of the NFC signal is 13.56MHz, when the receiving frequency is in the range of a×13.56-b MHz to a×13.56+b MHz, where a is a positive integer, and b can be set according to practical situations, it can be determined that the receiving signal has an interference risk, otherwise, there is no interference risk, that is, the NFC signal has no interference on the receiving signal.
In an embodiment of the present application, the second determining module includes a third determining submodule and a fourth determining submodule, where the third determining submodule is configured to determine that the NFC signal has interference on the received signal when the operating state is the standby state or the normal operating state, the signal strength is greater than a predetermined strength, and the bit error rate is within a predetermined bit error rate interval; the fourth determining submodule is configured to determine that the NFC signal does not interfere with the received signal when the operating state is the off state, the signal strength is less than or equal to the predetermined strength, and one or more of the error rate is not within the predetermined error rate interval. Specifically, when the interference risk exists in the received signal, the operating state, the signal strength and the bit error rate simultaneously satisfy a predetermined condition, that is, the operating state is the standby state or the normal operating state, the signal strength is greater than the predetermined strength and the bit error rate is within a predetermined bit error rate interval, it is determined that the NFC signal interferes with the received signal, and otherwise, it is determined that the NFC signal does not interfere with the received signal.
In fact, whether the received signal has interference risk may be determined without first receiving the frequency, and in one embodiment of the present application, the detecting unit includes a third detecting module, a fourth detecting module, a fifth detecting module, and a third determining module, where the third detecting module is configured to detect the frequency of the received signal of the signal receiving terminal, to obtain the received frequency; the fourth detection module is configured to detect an operating state of NFC, where the operating state includes a normal operating state, a standby state, and a closed state; the fifth detection module is used for detecting the signal strength and the error rate of the received signal; the third determining module is configured to determine whether the NFC signal interferes with the received signal according to the receiving frequency, the operating state, the signal strength, and the bit error rate. Specifically, the receiving frequency, the working state of the NFC, the signal strength and the bit error rate of the received signal are detected at the same time, then whether the NFC signal interferes with the received signal is determined directly according to the detection result, the process of determining whether the received signal has interference risk is reduced, and the efficiency is improved.
In an embodiment of the present application, the third determining module includes a fifth determining submodule and a sixth determining submodule, where the fifth determining submodule is configured to determine that the NFC signal interferes with the received signal when the received frequency is within a predetermined frequency range, the operating state is the standby state or the normal operating state, the signal strength is greater than a predetermined strength, and the error rate is within a predetermined error rate interval; the sixth determining submodule is configured to determine that the NFC signal does not interfere with the received signal when the received frequency does not occur in any one or more of the predetermined frequency range, the operating state is the off state, the signal strength is less than or equal to the predetermined strength, and the error rate is not within the predetermined error rate interval. Specifically, the receiving frequency, the operating state, the signal strength and the bit error rate simultaneously satisfy predetermined conditions, that is, the receiving frequency is within a predetermined frequency range, the operating state is the standby state or the normal operating state, the signal strength is greater than the predetermined strength and the bit error rate is within a predetermined bit error rate interval, it is determined that the NFC signal interferes with the receiving signal, and if not, it is determined that the NFC signal does not interfere with the receiving signal.
It should be noted that, a person skilled in the art may select a suitable predetermined strength and a predetermined error rate according to the actual situation, so as to ensure accuracy of signal interference detection.
In one embodiment of the present application, the process of executing the first control strategy includes one or more of the following: adjusting the NFC working mode to a card reader mode; controlling the power supply of the NFC to be turned off; and controlling the chip where the NFC is positioned to enter a power-down mode or a low-power consumption mode. Specifically, the NFC can not send out the NFC signal under the card reader mode, the power of NFC is closed to and the chip that NFC is located gets into power down mode or low-power consumption mode and all can lead to NFC stop working, thereby can not send out the NFC signal, realize promptly that control NFC stops transmitting above-mentioned NFC signal, in order to avoid the interference.
In one embodiment of the present application, the process of executing the second control strategy includes: the radio frequency switch controlling the output path of the NFC is grounded or opened. Specifically, the radio frequency switch controlling the output path of the NFC is grounded or opened, so that the NFC signal can be weakened to reduce interference.
In one embodiment of the present application, the process of executing the third control strategy includes: and adjusting the NFC clock frequency, wherein the NFC clock frequency is the reference frequency of NFC. Specifically, the working frequency of NFC can be corrected by adjusting the frequency of the NFC clock, so that the frequency of NFC signals is adjusted, and the same-frequency interference is avoided.
The embodiment of the application further provides a communication terminal, as shown in fig. 3, where the communication terminal includes a plurality of communication modules, the communication modules include NFC, and the communication terminal includes: a memory and a processor; the memory is connected with the processor and is used for storing programs and data generated in the running process of the programs; the processor is configured to implement the following functions by running the program stored in the memory: detecting whether an NFC signal interferes with a received signal, and executing any one of a first control policy, a second control policy and a third control policy when the NFC signal interferes with the received signal, where the first control policy is to control NFC to stop transmitting the NFC signal, the second control policy is to weaken the NFC signal, and the third control policy is to adjust an operating frequency of the NFC.
The communication terminal comprises a signal interference detection processing device and a plurality of communication modules, wherein a detection unit detects whether an NFC signal interferes with a received signal; and the processing unit executes any one of a first control strategy, a second control strategy and a third control strategy under the condition that the NFC signal interferes with the receiving signal, wherein the first control strategy is used for controlling NFC to stop transmitting the NFC signal, the second control strategy is used for weakening the NFC signal, and the third control strategy is used for adjusting the working frequency of the NFC. The communication terminal provides three schemes of the first control strategy, the second control strategy and the third control strategy to reduce or avoid the influence of NFC interference signals, namely stopping transmitting the NFC interference signals so as to avoid the influence of the NFC interference signals, or weakening the NFC interference signals to reduce the influence of the NFC interference signals, adjusting the working frequency of the NFC to avoid co-channel interference, so that a worker can flexibly select a proper processing scheme according to an application scene, the problem of poor reliability caused by single processing scheme is solved, and the problem of low reliability of a signal interference processing method in the prior art is solved.
It should be noted that, as shown in fig. 3, the receiver of the communication terminal receives a received signal, performs filtering processing on the received signal through a filter to remove an interference signal except for a receiving frequency, then completes a high-speed ADC through an intermediate frequency processing unit, and detects whether the NFC signal interferes with the received signal through a detection unit, where the detection unit includes a third detection module, a fourth detection module, a fifth detection module, and a third determination module, where the third detection module is configured to detect the frequency of the received signal of the signal receiving terminal, so as to obtain the receiving frequency; the fourth detection module is configured to detect an operating state of NFC, where the operating state includes a normal operating state, a standby state, and a closed state; the fifth detection module is configured to detect a signal strength and an error rate of the received signal, and the processing unit is configured to adjust the working mode of the NFC to a card reader mode, control the power supply of the NFC to be turned off, control the chip where the NFC is located to enter a power-down mode or a low-power-consumption mode, and control the radio frequency switch of the output path of the NFC to be grounded or to be opened or to adjust the frequency of the NFC clock.
In order to enable those skilled in the art to more clearly understand the technical solutions of the present application, the technical solutions of the present application will be described below with reference to specific embodiments.
Example 1
And when the NFC signal interference exists, executing a first control strategy, namely controlling NFC to stop transmitting the NFC signals.
Example 2
In the presence of NFC signal interference, a second control strategy is implemented, namely attenuating the above-mentioned NFC signal.
Example 3
And when the NFC signal interference exists, executing a third control strategy, namely adjusting the working frequency of the NFC.
Comparative example
When NFC signal interference exists, no processing is performed.
For the cases of examples 1 to 3 and comparative example, the radiation sensitivity of a plurality of frequency bands at the time of NFC card punching was detected, and the test results are shown in table 1.
TABLE 1
Figure BDA0003372615480000091
As can be seen from table 1, the scheme of the comparative example will cause 20-30dB of deterioration of the reception sensitivity of the received signal, and the degree of deterioration of the reception sensitivity of the received signal is significantly improved by using the schemes of examples 1 to 3, and the three control strategies have slightly different degrees of influence, and the second control strategy adopts the mode of open/short circuit of NFC output, because NFC still has a certain radiation, and thus the degree of influence on the reception sensitivity of the received signal is slightly greater than the first control strategy and the third control strategy.
The signal interference detection processing device comprises a processor and a memory, wherein the detection unit, the processing unit and the like are stored in the memory as program units, and the processor executes the program units stored in the memory to realize corresponding functions.
The processor includes a kernel, and the kernel fetches the corresponding program unit from the memory. The kernel can be provided with one or more than one kernel, and the problem of low reliability of a signal interference processing method in the prior art is solved by adjusting kernel parameters.
The memory may include volatile memory, random Access Memory (RAM), and/or nonvolatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM), among other forms in computer readable media, the memory including at least one memory chip.
An embodiment of the present invention provides a computer-readable storage medium having stored thereon a program which, when executed by a processor, implements the above-described method.
The embodiment of the invention provides a processor, which is used for running a program, wherein the method is executed when the program runs.
The embodiment of the invention provides equipment, which comprises a processor, a memory and a program stored in the memory and capable of running on the processor, wherein the processor realizes at least the following steps when executing the program:
step S101, detecting whether the NFC signal interferes with the received signal;
step S102, executing any one of a first control policy, a second control policy and a third control policy when the NFC signal exists, where the first control policy is to control NFC to stop transmitting the NFC signal, the second control policy is to weaken the NFC signal, and the third control policy is to adjust the operating frequency of the NFC.
The device herein may be a server, PC, PAD, cell phone, etc.
The present application also provides a computer program product adapted to perform a program initialized with at least the following method steps when executed on a data processing device:
step S101, detecting whether the NFC signal interferes with the received signal;
step S102, executing any one of a first control policy, a second control policy and a third control policy when the NFC signal exists, where the first control policy is to control NFC to stop transmitting the NFC signal, the second control policy is to weaken the NFC signal, and the third control policy is to adjust the operating frequency of the NFC.
In the foregoing embodiments of the present invention, the descriptions of the embodiments are emphasized, and for a part of an embodiment that is not described in detail, reference may be made to the related description of the second embodiment.
In the several embodiments provided in the present application, it should be understood that the disclosed technology content may be implemented in other manners. The above-described embodiments of the apparatus are merely exemplary, and the division of the units may be a logic function division, and there may be another division manner when actually implemented, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some interfaces, units or modules, or may be in electrical or other forms.
The units described above as separate components may or may not be physically separate, and components shown as units may or may not be physical units, may be located in one place, or may be distributed over a plurality of units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated units described above, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer-readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in essence or a part contributing to the prior art or all or part of the technical solution in the form of a software product stored in a computer readable storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server or a network device, etc.) to perform all or part of the steps of the above-mentioned methods of the various embodiments of the present invention. And the aforementioned computer-readable storage medium includes: a U-disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a removable hard disk, a magnetic disk, or an optical disk, or other various media capable of storing program codes.
From the above description, it can be seen that the above embodiments of the present application achieve the following technical effects:
1) In the signal interference detection processing method, firstly, whether the NFC signal interferes with the received signal or not is detected; and executing any one of a first control strategy, a second control strategy and a third control strategy under the condition that the NFC signal interferes with the receiving signal, wherein the first control strategy is used for controlling NFC to stop transmitting the NFC signal, the second control strategy is used for weakening the NFC signal, and the third control strategy is used for adjusting the working frequency of the NFC. The processing method provides three schemes of a first control strategy, a second control strategy and a third control strategy to reduce or avoid the influence of NFC interference signals, namely stopping transmitting the NFC interference signals to avoid the influence of the NFC interference signals, or weakening the NFC interference signals to reduce the influence of the NFC interference signals, and adjusting the working frequency of the NFC to avoid co-channel interference, so that a worker can flexibly select a proper processing scheme according to an application scene, the problem of poor reliability caused by single processing scheme is solved, and the problem of low reliability of the processing method of signal interference in the prior art is solved.
2) In the signal interference detection processing device, a detection unit detects whether the NFC signal interferes with the received signal or not; and the processing unit executes any one of a first control strategy, a second control strategy and a third control strategy under the condition that the NFC signal interferes with the receiving signal, wherein the first control strategy is used for controlling NFC to stop transmitting the NFC signal, the second control strategy is used for weakening the NFC signal, and the third control strategy is used for adjusting the working frequency of the NFC. The processing device provides three schemes of a first control strategy, a second control strategy and a third control strategy to reduce or avoid the influence of NFC interference signals, namely stopping transmitting the NFC interference signals so as to avoid the influence of the NFC interference signals, or weakening the NFC interference signals to reduce the influence of the NFC interference signals, adjusting the working frequency of the NFC to avoid co-channel interference, so that a worker can flexibly select a proper processing scheme according to an application scene, the problem of poor reliability caused by single processing scheme is solved, and the problem of low reliability of a signal interference processing method in the prior art is solved.
3) The communication terminal comprises a signal interference detection processing device and a plurality of communication modules, wherein a detection unit detects whether an NFC signal interferes with a received signal; and the processing unit executes any one of a first control strategy, a second control strategy and a third control strategy under the condition that the NFC signal interferes with the receiving signal, wherein the first control strategy is used for controlling NFC to stop transmitting the NFC signal, the second control strategy is used for weakening the NFC signal, and the third control strategy is used for adjusting the working frequency of the NFC. The communication terminal provides three schemes of the first control strategy, the second control strategy and the third control strategy to reduce or avoid the influence of NFC interference signals, namely stopping transmitting the NFC interference signals so as to avoid the influence of the NFC interference signals, or weakening the NFC interference signals to reduce the influence of the NFC interference signals, adjusting the working frequency of the NFC to avoid co-channel interference, so that a worker can flexibly select a proper processing scheme according to an application scene, the problem of poor reliability caused by single processing scheme is solved, and the problem of low reliability of a signal interference processing method in the prior art is solved.
The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the same, but rather, various modifications and variations may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims (10)

1. The method for detecting and processing the signal interference is characterized by comprising the following steps:
detecting whether the NFC signal interferes with the received signal or not;
and executing any one of a first control strategy, a second control strategy and a third control strategy under the condition that the NFC signal interferes with the received signal, wherein the first control strategy is used for controlling NFC to stop transmitting the NFC signal, the second control strategy is used for weakening the NFC signal, and the third control strategy is used for adjusting the working frequency of NFC.
2. The method of claim 1, wherein detecting whether the NFC signal has interference with the received signal comprises:
acquiring the frequency of a received signal of a terminal to obtain a received frequency;
determining whether the received signal has interference risk according to the received frequency;
Detecting an NFC working state, signal strength of the received signal and error rate of the received signal under the condition that the received signal is at risk of interference, wherein the working state comprises a normal working state, a standby state and a closing state;
and determining whether the NFC signal interferes with the received signal or not according to the working state, the signal strength and the error rate.
3. The method of claim 2, wherein determining whether the received signal is at risk of interference based on the received frequency comprises:
determining that the received signal is at risk of interference if the received frequency is within a predetermined frequency range;
in the event that the received frequency is not within the predetermined frequency range, it is determined that the received signal is not at risk of interference.
4. A method according to claim 3, wherein determining whether the NFC signal has interference with the received signal based on the operating state, the signal strength, and the bit error rate comprises:
determining that the NFC signal interferes with the received signal when the operating state is the standby state or the normal operating state, the signal strength is greater than a predetermined strength, and the error rate is greater than a predetermined value;
And under the condition that any one or more of the working state is the closing state, the signal strength is smaller than or equal to the preset strength and the error rate is smaller than or equal to the preset value, determining that the NFC signal has no interference on the received signal.
5. The method of claim 1, wherein detecting whether the NFC signal has interference with the received signal comprises:
acquiring the frequency of a received signal of a terminal to obtain a received frequency;
detecting the working state of NFC, wherein the working state comprises a normal working state, a standby state and a closing state;
detecting the signal strength and the error rate of the received signal;
and determining whether the NFC signal interferes with the received signal or not according to the receiving frequency, the working state, the signal strength and the error rate.
6. The method of claim 2, wherein determining whether the NFC signal has interference with the received signal based on the received frequency, the operating state, the signal strength, and the bit error rate comprises:
determining that the NFC signal interferes with the received signal when the received frequency is within a predetermined frequency range, the operating state is the standby state or the normal operating state, the signal strength is greater than a predetermined strength, and the error rate is greater than a predetermined value;
And under the condition that the receiving frequency is not in the preset frequency range, the working state is the closing state, the signal strength is smaller than or equal to the preset strength and the error rate is smaller than or equal to any one or more of the preset value, determining that the NFC signal has no interference on the receiving signal.
7. A method according to any one of claims 1 to 3, wherein the process of executing the first control strategy comprises one or more of the following:
adjusting the working mode of the NFC to a card reader mode;
controlling the power supply of the NFC to be turned off;
and controlling the NFC to enter a power-down mode or a low-power consumption mode.
8. A method according to any one of claims 1 to 3, wherein the process of executing the second control strategy comprises:
and controlling the radio frequency switch of the NFC output path to be grounded or open.
9. A method according to any one of claims 1 to 3, wherein the process of executing the third control strategy comprises:
and adjusting NFC clock frequency, wherein the NFC clock frequency is the reference frequency of NFC.
10. A communication terminal comprising a plurality of communication modules, the communication modules comprising NFC, the communication terminal comprising:
A memory and a processor;
the memory is connected with the processor and used for storing programs and data generated in the running process of the programs;
the processor is configured to implement the following functions by running a program stored in the memory:
detecting whether an NFC signal interferes with a received signal, and executing any one of a first control strategy, a second control strategy and a third control strategy under the condition that the NFC signal interferes with the received signal, wherein the first control strategy is used for controlling NFC to stop transmitting the NFC signal, the second control strategy is used for weakening the NFC signal, and the third control strategy is used for adjusting the working frequency of NFC.
CN202111407054.6A 2021-11-24 2021-11-24 Signal interference detection processing method and communication terminal Pending CN116170783A (en)

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