CN113141642A - Method, device, mobile terminal and storage medium for eliminating interference to GPS signal - Google Patents
Method, device, mobile terminal and storage medium for eliminating interference to GPS signal Download PDFInfo
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Abstract
The invention discloses a method, a device, a mobile terminal and a storage medium for eliminating interference to GPS signals, wherein the method comprises the following steps: when detecting that a mobile terminal starts a GPS, judging whether the mobile terminal receives a network signal; if the mobile terminal receives the network signal, acquiring a network frequency point of the current operation of the network signal; judging whether a network frequency point currently operated by a network signal causes interference on the GPS signal; if the network frequency point of the current operation of the network signal causes interference to the GPS signal, the network signal is switched to a preset network frequency point for operation, and the preset network frequency point is a network frequency point which does not cause interference to the GPS signal. Under the condition that the network signal and the GPS signal operate simultaneously, the network signal can not cause interference to the GPS signal, namely, the risk of the interference to the GPS caused by the network signal is eliminated, the normal use of the GPS positioning function is ensured, and the quality of the call of the mobile terminal can be ensured not to be influenced.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for eliminating interference to a GPS signal, a mobile terminal, and a storage medium.
Background
With the popularization of 4G mobile communication, there are more and more scenes in which network signals, such as LTE networks and GPS functions, operate simultaneously in terminal devices such as mobile phones or smart watches, for example, a user carries a mobile phone or wears a smart watch, and listens to favorite music through the LTE network while exercising with the GPS positioning function during running. In such a scenario where the network signal and the GPS signal operate simultaneously, because the GPS signal is very weak, the network signal may interfere with the GPS signal, thereby affecting the positioning function of the GPS.
Disclosure of Invention
The invention mainly aims to provide a method, a device, a mobile terminal and a storage medium for eliminating interference on a GPS signal, and aims to solve the technical problem that in the prior art, under the condition that a network signal and the GPS signal operate simultaneously, the network signal can cause interference on the GPS signal, so that the positioning function of the GPS is influenced.
To achieve the above object, the present invention provides a method for eliminating interference to GPS signals, comprising the steps of:
when detecting that a mobile terminal starts a GPS, judging whether the mobile terminal receives a network signal;
if the mobile terminal receives the network signal, acquiring a network frequency point of the current operation of the network signal;
judging whether a network frequency point currently operated by a network signal causes interference on the GPS signal;
if the network frequency point of the current operation of the network signal causes interference to the GPS signal, the network signal is switched to a preset network frequency point for operation, and the preset network frequency point is a network frequency point which does not cause interference to the GPS signal.
Optionally, the step of determining whether the network frequency point currently operated by the network signal causes interference to the GPS signal includes:
judging whether a frequency point which is the same as a network frequency point currently operated by a network signal exists in a preset interference frequency point set or not;
if the network frequency point of the current operation of the network signal causes interference to the GPS signal, the step of switching the network signal to the preset network frequency point for operation comprises the following steps:
if the preset interference frequency point set has the frequency point which is the same as the network frequency point currently operated by the network signal, judging that the network frequency point currently operated by the network signal causes interference to the GPS signal, and switching the network signal to the preset network frequency point for operation.
Optionally, the step of determining whether a frequency point identical to a network frequency point currently operated by a network signal exists in the preset interference frequency point set includes:
and acquiring a preset interference frequency point set from a register.
Optionally, the mobile terminal has a first network transmission path and/or a second network transmission path, the network frequency of the first network transmission path is a first network frequency f1, and the network frequency of the second network transmission path is a second network frequency f 2;
the step of judging whether the network frequency point currently operated by the network signal causes interference to the GPS signal comprises the following steps:
judging whether the frequency multiplication of f1, the frequency multiplication of f2 and intermodulation products of f1 and f2 are in a preset frequency range, wherein the preset frequency range is a frequency range causing interference on GPS signals;
if the network frequency point of the current operation of the network signal causes interference to the GPS signal, the step of switching the network signal to the preset network frequency point for operation comprises the following steps:
and if the frequency multiplication of f1, the frequency multiplication of f2 and the intermodulation products of f1 and f2 are in the preset frequency range, judging that the network frequency point of the current operation of the network signal causes interference to the GPS signal, and switching the network signal to the preset network frequency point for operation.
Optionally, the step of determining whether the multiplied frequency of f1, the multiplied frequency of f2, and the intermodulation product of f1 and f2 are in the preset frequency range includes:
and judging whether the frequency multiplication of f1, the frequency multiplication of f2, the second-order intermodulation products of f1 and f2 and the third-order intermodulation products of f1 and f2 are in a preset frequency range.
Optionally, before the step of determining whether the network frequency point currently operated by the network signal causes interference to the GPS signal, the method includes:
comparing the intensity of the GPS signal when the mobile terminal does not receive the network signal with the intensity of the GPS signal when the mobile terminal receives the network signal to obtain a comparison result;
the step of judging whether the network frequency point currently operated by the network signal causes interference to the GPS signal comprises the following steps:
and judging whether the network frequency point currently operated by the network signal causes interference to the GPS signal according to the comparison result.
Optionally, the step of comparing the strength of the GPS signal when the mobile terminal does not receive the network signal with the strength of the GPS signal when the mobile terminal receives the network signal to obtain a comparison result includes:
acquiring the difference value of the intensity of the GPS signal when the mobile terminal does not receive the network signal and the intensity of the GPS signal when the mobile terminal receives the network signal;
the step of judging whether the network frequency point currently operated by the network signal causes interference to the GPS signal according to the comparison result comprises the following steps:
judging whether the difference value is within a preset difference value range or not;
if the network frequency point of the current operation of the network signal causes interference to the GPS signal, the network signal is switched to a preset network frequency point to operate, and the preset network frequency point is a network frequency point which does not cause interference to the GPS signal, and the method comprises the following steps:
if the difference value is within the preset difference value range, judging that the network frequency point of the current operation of the network signal causes interference to the GPS signal, and switching the network signal to the preset network frequency point for operation.
Furthermore, to achieve the above object, the present invention further provides an apparatus for reducing interference to GPS signals, the apparatus comprising a memory, a processor and a computer program stored on the memory and operable on the processor, the computer program, when executed by the processor, implementing the steps of the method for canceling interference to GPS signals as described above.
Furthermore, to achieve the above object, the present invention further provides a mobile terminal, which includes a memory, a processor and a computer program stored on the memory and operable on the processor, wherein the computer program, when executed by the processor, implements the steps of the method for eliminating interference to GPS signals as described above.
Furthermore, to achieve the above object, the present invention further provides a computer readable storage medium, which stores a computer program, and the computer program when executed by a processor implements the steps of the method for eliminating the interference to the GPS signal as described above.
According to the method, when the mobile terminal is detected to start the GPS, whether the mobile terminal receives the network signal is judged, the network frequency point of the current operation of the network signal is obtained under the condition that the mobile terminal receives the network signal, whether the network frequency point of the current operation of the network signal interferes with the GPS signal is judged, and if the network frequency point of the current operation of the network signal interferes with the GPS signal, the network signal is switched to the preset network frequency point which does not interfere with the GPS signal to operate, so that the network frequency point of the current operation of the network signal avoids the frequency point which interferes with the GPS signal, the network signal cannot interfere with the GPS signal under the condition that the network signal and the GPS signal operate simultaneously, namely, the risk of interference of the network signal to the GPS is eliminated, and the normal use of the GPS positioning function is ensured.
Meanwhile, the invention only switches the network frequency point of the network signal under the condition that whether the network frequency point of the current operation of the network signal interferes the GPS signal, does not need to reduce the transmitting power of the network signal, and can simultaneously ensure that the communication quality of the mobile terminal is not influenced under the condition of eliminating the interference to the GPS. In addition, the method does not need to add a wave trap in a GPS circuit to filter out interference signals, and cost investment is reduced.
Drawings
Fig. 1 is a schematic hardware structure diagram of an apparatus for eliminating interference to GPS signals according to an embodiment of the present invention;
FIG. 2 is a flowchart illustrating a first embodiment of a method for eliminating interference to GPS signals according to the present invention;
FIG. 3 is a flowchart illustrating a second embodiment of a method for eliminating interference to GPS signals according to the present invention;
FIG. 4 is a flowchart illustrating a third embodiment of a method for eliminating interference to GPS signals according to the present invention;
FIG. 5 is a flowchart illustrating a fourth embodiment of the method for eliminating interference to GPS signals according to the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention provides a method and a device for eliminating interference to a GPS signal, a mobile terminal and a storage medium.
Referring to fig. 1, fig. 1 is a schematic diagram illustrating a hardware structure of an apparatus for reducing interference to GPS signals according to an embodiment of the present invention.
The apparatus for reducing interference to GPS signals may include components such as a processor 1001, a communication module 1002, and a memory 1003 in terms of hardware configuration. Those skilled in the art will appreciate that the configuration of the apparatus for reducing interference with GPS signals shown in fig. 1 is not intended to be limiting of the apparatus for reducing interference with GPS signals and may include more or fewer components than shown, or some components may be combined, or a different arrangement of components. The processor 1001 is connected to the memory 1003 and the communication module 1002, respectively, the memory 1003 stores a program for reducing interference to GPS signals, the program for reducing interference to GPS signals is executed by the processor 1001 at the same time, and the steps of the following method embodiments are implemented when the program for reducing interference to GPS signals is executed.
The processor 1001, which is a control center of the apparatus for reducing interference with GPS signals, connects various parts of the entire apparatus for reducing interference with GPS signals using various interfaces and lines, and performs various functions of the apparatus for reducing interference with GPS signals and processes data by running or executing software programs and/or modules stored in the memory 1003 and calling data stored in the memory 1003, thereby performing overall monitoring of the apparatus for reducing interference with GPS signals. Processor 1001 may include one or more processing units; alternatively, the processor 1001 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 1001.
The communication module 1002 may be connected to an external communication device through a network. The communication module 1002 may receive a request from an external communication device, and may also send a request, an instruction, and information to the external communication device. The external communication device may be a user terminal or other system server, etc.
The memory 1003 may be used to store software programs and various data. The memory 1003 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function, and the like; the stored data area may include a database, and the stored data area may store data or information created from the use of the device that reduces interference with GPS signals, and the like. Further, the memory 1003 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.
Although not shown in fig. 1, the device for reducing interference to GPS signals may further include a circuit control module for connecting to a power supply to ensure the normal operation of other components.
Various embodiments of the method of the present invention are presented in terms of the above-described hardware architecture.
Referring to fig. 2, a flow chart of a first embodiment of the method for eliminating interference to GPS signals according to the present invention is shown, the method comprising the following steps:
step S100, when detecting that a mobile terminal starts a GPS, judging whether the mobile terminal receives a network signal;
in the present invention, the network signal may be a cellular network signal, such as a 2G network signal, a 3G network signal, a 4G network signal, a 5G network signal, and the like. In this embodiment, the network signal is an LTE network signal for example. When a user runs with a mobile terminal, such as a mobile phone or a smart watch, the user may listen to music or the like with the mobile terminal while positioning the kinetic energy using the GPS of the mobile terminal. When the mobile terminal is detected to be started with the GPS, whether the mobile terminal receives LTE network signals is judged so as to judge whether a user uses the LTE network to listen to music and the like while using the GPS positioning function of the mobile terminal.
Step S200, if the mobile terminal receives the network signal, acquiring a network frequency point of the current operation of the network signal;
if the mobile terminal receives a network signal, that is, the user listens to music while using the GPS positioning function of the mobile terminal, the LTE network may interfere with the GPS signal, and in this case, the network frequency point at which the network signal currently operates may be acquired first.
Step S300, judging whether the network frequency point of the current operation of the network signal causes interference to the GPS signal;
after the network frequency point currently operated by the network signal is obtained, whether the network frequency point currently operated by the network signal causes interference to the GPS signal is continuously determined, for example, the network frequency point currently operated by the network signal may cause frequency multiplication interference or intermodulation interference to the GPS signal, which may affect the positioning function of the GPS. Whether the network frequency point of the current operation of the network signal interferes with the GPS signal is judged, the judgment can be carried out by detecting the signal intensity of the GPS, and if the signal intensity of the GPS is weakened or unstable, the network frequency point of the current operation of the network signal is judged to interfere with the GPS.
Step S400, if the network frequency point of the current operation of the network signal causes interference to the GPS signal, the network signal is switched to a preset network frequency point for operation, and the preset network frequency point is a network frequency point which does not cause interference to the GPS signal.
If the network frequency point of the network signal currently running causes interference to the GPS signal, the network signal may be switched to a preset network frequency point for running, where the preset network frequency point is a frequency point that does not cause interference to the GPS signal, and it should be noted that the preset network frequency point may be a network frequency point that does not cause frequency multiplication interference or intermodulation interference to the GPS signal. Under the condition that the network frequency point of the current operation of the network signal causes interference to the GPS signal, the network signal is switched to a preset network frequency point which does not cause interference to the GPS signal to operate, so that the network frequency point of the current operation of the network signal avoids the frequency point which causes interference to the GPS signal, the network signal cannot cause interference to the GPS signal under the condition that the network signal and the GPS signal operate simultaneously, and the normal use of the GPS positioning function is ensured.
In the method for eliminating the interference to the GPS signal, whether the mobile terminal receives the network signal is judged by detecting that the mobile terminal starts the GPS, under the condition that the mobile terminal receives the network signal, acquiring a network frequency point of the current operation of the network signal, and judges whether the network frequency point of the network signal currently running causes interference to the GPS signal, if the network frequency point of the network signal currently running causes interference to the GPS signal, the network signal is switched to a preset network frequency point which does not cause interference to the GPS signal, thereby the network frequency point of the current operation of the network signal avoids the frequency point which causes interference to the GPS signal, so that the network signal can not cause interference to the GPS signal under the condition that the network signal and the GPS signal are simultaneously operated by the mobile terminal, namely, the risk of interference of network signals to the GPS is eliminated, and the normal use of the GPS positioning function is ensured.
Meanwhile, in the method for eliminating the interference to the GPS signal according to the embodiment, when the network frequency point where the network signal currently operates interferes with the GPS signal, the network frequency point of the network signal is only switched without reducing the transmission power of the network signal, and when the interference to the GPS signal is eliminated, the quality of the call of the mobile terminal itself can be ensured not to be affected. In addition, the method does not need to add a wave trap in a GPS circuit to filter out interference signals, and cost investment is reduced.
It can be understood that, when it is detected that the mobile terminal starts the GPS, the mobile terminal does not receive the network signal, for example, when the user uses the GPS positioning function of the mobile terminal, the user does not listen to music and the like at the same time, and at this time, no network signal interferes with the GPS signal, and it is not necessary to perform the subsequent steps of acquiring the network frequency point currently operated by the network signal, and determining whether the network frequency point currently operated by the network signal interferes with the GPS signal or not.
Further, after step S300, the method further includes:
step S500, if the network frequency point of the current operation of the network signal does not cause interference to the GPS signal, the network frequency point of the current operation of the network signal is kept unchanged. Namely, the network frequency point of the current operation of the network signal does not need to be switched, and the normal operation of the network signal of the mobile terminal is kept.
Further, referring to fig. 3, which is a flowchart illustrating a second embodiment of the method for eliminating interference to GPS signals according to the present invention, based on the first embodiment, step S300 includes:
step S301, judging whether a frequency point which is the same as a network frequency point currently operated by a network signal exists in a preset interference frequency point set;
step S400 includes:
step S401, if a frequency point which is the same as a network frequency point currently operated by a network signal exists in a preset interference frequency point set, judging that the network frequency point currently operated by the network signal causes interference to the GPS signal, and switching the network signal to the preset network frequency point for operation.
Specifically, after the mobile terminal receives a network signal and acquires a network frequency point at which the network signal currently operates, it may be determined whether a frequency point that is the same as the network frequency point at which the network signal currently operates exists in a preset interference frequency point set, where the preset interference frequency point set is a preset set of frequency points that may cause interference to a GPS signal, and the preset interference frequency point set may be a set of network frequency points that cause frequency multiplication interference and intermodulation interference to the GPS signal and are written into a register of the mobile terminal. If the preset interference frequency point set has the frequency point which is the same as the network frequency point currently operated by the network signal, judging that the network frequency point currently operated by the network signal causes interference to the GPS signal, and switching the network signal to the preset network frequency point for operation.
The embodiment collects the frequency points which may cause interference to the GPS signal to form a preset interference frequency point set, so that the network frequency point in which the network signal currently operates can be directly and quickly searched in the preset interference frequency point set, and if the same frequency point is searched, that is, the network frequency point in which the network signal currently operates coincides with the preset interference frequency point set, it indicates that the network frequency point in which the network signal currently operates can cause interference to the GPS signal, and the network signal is switched to the preset network frequency point which does not cause interference to the GPS signal to operate, so that the operation is quick and convenient.
Further, step S301 includes:
step S3011, obtaining a preset interference frequency point set from a register;
as described above, the preset interference frequency point set may be a set of network frequency points that cause frequency multiplication interference and intermodulation interference to a GPS signal and are written in a register of the mobile terminal, and thus, when it is determined whether a frequency point that is the same as a network frequency point at which the network signal is currently operating exists in the preset interference frequency point set, the preset interference frequency point set may be directly obtained from the register.
Further, referring to fig. 4, which is a flowchart illustrating a third embodiment of the method for eliminating interference to GPS signals according to the present invention, based on the first embodiment, the mobile terminal has a first network transmission path and/or a second network transmission path, where the network frequency of the first network transmission path is a first network frequency f1, and the network frequency of the second network transmission path is a second network frequency f 2;
step S300 includes:
step S302, judging whether the frequency multiplication of f1, the frequency multiplication of f2 and the intermodulation products of f1 and f2 are in a preset frequency range, wherein the preset frequency range is a frequency range causing interference to GPS signals;
step S400 includes:
step S402, if the frequency multiplication of f1, the frequency multiplication of f2, and the intermodulation products of f1 and f2 are within the preset frequency range, determining that the network frequency point of the network signal currently operating causes interference to the GPS signal, and switching the network signal to the preset network frequency point to operate.
It can be understood that the first network frequency f1 of the first network transmission path or the second network frequency f2 of the second network transmission path generates an intermodulation signal in the GPS band, or alternatively, the second order harmonic of the first network transmission path may generate an intermodulation signal in the GPS band with the second network transmission path, and the intermodulation signal radiates to the GPS antenna to form in-band Noise, which is not filtered by the Filter, so that the Noise Floor rises and the CN0 falls to affect the GPS receiving signal.
In this embodiment, after the first network frequency f1 of the first network transmission path and the second network frequency f2 of the second network transmission path are obtained, it may be determined whether the frequency multiplication of f1, the frequency multiplication of f2, and the intermodulation component of f1 and f2 are in a preset frequency range, where the preset frequency range is a frequency range that causes interference to a GPS signal, and if the frequency multiplication of f1, the frequency multiplication of f2, and the intermodulation component of f1 and f2 are in the preset frequency range, it may be determined that a network frequency point currently operated by the network signal causes interference to the GPS signal, and the network signal is switched to a preset network frequency point for operation.
Under the condition that the network frequency point of the current operation of the network signal causes interference to the GPS signal, by changing the network frequency of one of the network transmission paths of the mobile terminal, that is, changing the first network frequency f1 of the first network transmission path of the mobile terminal or changing the second network frequency f2 of the second network transmission path of the mobile terminal, specifically, increasing or decreasing the first network frequency f1 or increasing or decreasing the second network frequency f2, the frequency multiplication of f1, the frequency multiplication of f2, and the intermodulation components of f1 and f2 may be made not within a preset frequency range, so that the network signal may not cause interference to the GPS signal under the condition that the network signal and the GPS signal operate simultaneously, that is, the risk that the network signal causes interference to the GPS is eliminated, and the normal use of the GPS positioning function is ensured. By judging whether the frequency multiplication of the f1, the frequency multiplication of the f2 and the intermodulation products of the f1 and the f2 are in the preset frequency range, the accuracy and the comprehensiveness of judging that the network frequency point of the current operation of the network signal causes interference to the GPS signal can be improved.
It should be noted that, the network frequency point currently operated by the network signal is determined to cause interference to the GPS signal by determining whether the frequency multiplication of f1, the frequency multiplication of f2, and the intermodulation component of f1 and f2 are in the preset frequency range, the step of switching the network signal to the preset network frequency point operation may be executed after the step of determining whether a frequency point same as the network frequency point currently operated by the network signal exists in the preset interference frequency point set, that is, the step S302 may be executed after the step S200, or may be executed after the step S301, specifically, after determining whether a frequency point same as the network frequency point currently operated by the network signal exists in the preset interference frequency point set, if the frequency multiplication of f1, the frequency multiplication of f2, and the intermodulation component of f1 and f2 are in the preset frequency range, it is determined whether the network frequency point of the first network transmission path and the network frequency point of the second network transmission path exist in the preset interference frequency point set, the method comprises the steps of judging whether a preset interference frequency point set has frequency points which are the same as network frequency points of a first network transmission channel and network frequency points of a second network transmission channel, if not, adding the network frequency points of the first network transmission channel and the network frequency points of the second network transmission channel into the preset interference frequency point set of a register, improving the comprehensiveness of the preset interference frequency point set, and further improving the accuracy, effectiveness and reliability of eliminating interference risks caused by network signals to GPS signals under the condition that the network signals and the GPS signals run simultaneously by a mobile terminal.
Further, step S303 includes:
step S3031, determining whether the frequency multiplication of f1, the frequency multiplication of f2, the second order intermodulation products of f1 and f2, and the third order intermodulation products of f1 and f2 are within the preset frequency range.
The frequency multiplication of f1, the frequency multiplication of f2, and in the intermodulation products of f1 and f2, the power of the second-order intermodulation products of f1 and f2, and the third-order intermodulation products of f1 and f2 are relatively large, that is, the frequency multiplication of f1, the frequency multiplication of f2, the second-order intermodulation products f2-f1 and f2+ f1 of f1 and f2, wherein f2 > f1, and the third-order intermodulation products 2f2-f1 and 2f1-f2 of f1 and f2 may be near the GPS frequency point and have large interference on the GPS signal, so that the frequency multiplication of f1, the frequency multiplication of f2, the second-order intermodulation products of f1 and f2, and the third-order intermodulation products of f1 and f2 may be mainly determined whether the third-order intermodulation products are in the preset frequency range, so as to quickly determine whether the network frequency interference caused by the network signal currently running, and thus the GPS signal is convenient for the fast point pair.
Further, referring to fig. 5, a flowchart of a fourth embodiment of the method for eliminating interference to a GPS signal according to the present invention is shown, and based on the first embodiment, before the step S300, the method includes:
step S201, comparing the intensity of the GPS signal when the mobile terminal does not receive the network signal with the intensity of the GPS signal when the mobile terminal receives the network signal to obtain a comparison result;
step S300 includes:
and step S303, judging whether the network frequency point currently operated by the network signal causes interference to the GPS signal according to the comparison result.
It can be understood that, in the case that the mobile terminal operates simultaneously with the network signal and the GPS signal, if the network signal interferes with the GPS signal, the signal strength of the GPS signal may change. In this embodiment, before determining whether the network frequency point currently operated by the network signal causes interference to the GPS signal, the strength of the GPS signal when the mobile terminal does not receive the network signal is compared with the strength of the GPS signal when the mobile terminal receives the network signal to obtain a comparison result, so as to determine whether the network frequency point currently operated by the network signal causes interference to the GPS signal according to the comparison result.
According to the embodiment, the comparison result can be rapidly obtained by comparing the intensity of the GPS signal when the mobile terminal does not receive the network signal with the intensity of the GPS signal when the mobile terminal receives the network signal, the variation of the intensity of the GPS signal when the network signal is not received and the network signal is received can be obtained from the comparison result, and then whether the network frequency point currently running by the network signal causes interference to the GPS signal or not can be directly judged according to the comparison result, so that the method is rapid and convenient.
Further, step S201 includes:
step S2011, acquiring a difference value between the strength of the GPS signal when the mobile terminal does not receive the network signal and the strength of the GPS signal when the mobile terminal receives the network signal;
step S303 includes:
step S3031, judging whether the difference value is within a preset difference value range;
step S400 includes:
step S403, if the difference is within the preset difference range, determining that the network frequency point of the current operation of the network signal causes interference to the GPS signal, and switching the network signal to the preset network frequency point for operation.
The comparison result of the GPS signal strength when the mobile terminal does not receive the network signal and the GPS signal strength when the mobile terminal receives the network signal can be represented by the difference value of the two signal strengths, whether the difference value is within a preset difference value range is judged by acquiring the difference value of the GPS signal strength when the mobile terminal does not receive the network signal and the GPS signal strength when the mobile terminal receives the network signal, and the preset difference value range is the strength difference value range in which the preset network signal currently running network frequency points can cause interference to the GPS signal. In this embodiment, when the difference between the intensity of the GPS signal when the mobile terminal does not receive the network signal and the intensity of the GPS signal when the mobile terminal receives the network signal is greater than 2dBHz, the difference is within a preset difference range, and then it is determined that the network frequency point of the current operation of the network signal causes interference to the GPS signal, and the network signal is switched to the preset network frequency point for operation. It can be understood that, if the GPS signal strength between the mobile terminal and the network signal is not changed much when the mobile terminal does not receive the network signal and receives the network signal, for example, the GPS signal strength is less than 2dBHz, and the difference is not within the preset difference range, it is determined that the network frequency point of the network signal currently operating does not cause interference to the GPS signal, and the network signal continues to operate at the network frequency point of the network signal currently operating without switching the network frequency point of the network signal.
It should be noted that, by obtaining the difference between the intensity of the GPS signal when the mobile terminal does not receive the network signal and the intensity of the GPS signal when the mobile terminal receives the network signal, determining whether the difference is within a preset difference range to determine that the network frequency point currently operated by the network signal causes interference to the GPS signal, and switching the network signal to the preset network frequency point operation may be performed after determining whether a frequency point identical to the network frequency point currently operated by the network signal exists in the preset interference frequency point set, that is, step S201 may be performed after step S200, or may be performed after step S301, specifically, after determining whether a frequency point identical to the network frequency point currently operated by the network signal exists in the preset interference frequency point set, if the frequency multiplication of f1, the frequency multiplication of f2, and the intermodulation components of f1 and f2 are not within the preset frequency range, obtaining the difference between the intensity of the GPS signal when the mobile terminal does not receive the network signal and the intensity of the GPS signal when the mobile terminal receives the network signal, judging whether the difference value is within a preset difference value range, if so, judging whether the currently operated network frequency point of the network signal interferes the GPS signal, judging whether the currently operated network frequency point of the network signal exists in a preset interference frequency point set, namely, judging whether the preset interference frequency point set has the same frequency point as the currently operated network frequency point of the network signal, if not, adding the currently operated network frequency point of the network signal into the preset interference frequency point set of the register, improving the comprehensiveness of the preset interference frequency point set, and further improving the accuracy, effectiveness and reliability of eliminating interference risks caused by the network signal to the GPS signal under the condition that the mobile terminal operates simultaneously with the network signal and the GPS signal.
Furthermore, to achieve the above object, the present invention also proposes a mobile terminal, which includes a memory, a processor and a computer program stored on the memory and operable on the processor, and when executed by the processor, implements the steps of the method for eliminating interference to GPS signals as described above. The mobile terminal of the present invention may be a mobile phone or a smart watch, and the specific embodiment of the mobile terminal of the present invention is substantially the same as the embodiments of the above method for eliminating interference to GPS signals, and is not described herein again.
Furthermore, to achieve the above object, the present invention further provides a computer-readable storage medium, which stores a computer program, and the computer program, when executed by a processor, implements the steps of the method for eliminating the interference to the GPS signal as described above. The computer-readable storage medium may be a Memory in the subtitle display apparatus of fig. 1, and may also be at least one of a ROM (Read-only Memory)/RAM (Random Access Memory), a magnetic disk, and an optical disk, where the computer-readable storage medium includes instructions for enabling a terminal device (which may be a mobile phone, a computer, a server, a terminal, or a network device) having a processor to execute the method for eliminating interference to a GPS signal according to the embodiments of the present invention.
The specific embodiment of the computer-readable storage medium of the present invention is substantially the same as the embodiments of the method for eliminating the interference to the GPS signal, and will not be described herein again.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
Furthermore, the descriptions related to "first", "second", "third", "fourth", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, features defined as "first," "second," "third," and "fourth" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) as described above and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, a terminal, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A method for canceling interference with a GPS signal, the method comprising the steps of:
when detecting that a mobile terminal starts a GPS, judging whether the mobile terminal receives a network signal;
if the mobile terminal receives the network signal, acquiring a network frequency point of the current operation of the network signal;
judging whether a network frequency point currently operated by a network signal causes interference on the GPS signal;
if the network frequency point of the current operation of the network signal causes interference to the GPS signal, the network signal is switched to a preset network frequency point for operation, and the preset network frequency point is a network frequency point which does not cause interference to the GPS signal.
2. The method as claimed in claim 1, wherein the step of determining whether the network frequency point currently operated by the network signal causes interference to the GPS signal comprises:
judging whether a frequency point which is the same as a network frequency point currently operated by a network signal exists in a preset interference frequency point set or not;
if the network frequency point of the current operation of the network signal causes interference to the GPS signal, the step of switching the network signal to the preset network frequency point for operation comprises the following steps:
if the preset interference frequency point set has the frequency point which is the same as the network frequency point currently operated by the network signal, judging that the network frequency point currently operated by the network signal causes interference to the GPS signal, and switching the network signal to the preset network frequency point for operation.
3. The method according to claim 2, wherein the step of determining whether there is a frequency point in the preset interference frequency point set that is the same as a network frequency point at which the network signal is currently operating includes:
and acquiring a preset interference frequency point set from a register.
4. The method of eliminating interference with GPS signals according to claim 1,
the mobile terminal is provided with a first network transmission path and/or a second network transmission path, the network frequency of the first network transmission path is a first network frequency f1, and the network frequency of the second network transmission path is a second network frequency f 2;
the step of judging whether the network frequency point currently operated by the network signal causes interference to the GPS signal comprises the following steps:
judging whether the frequency multiplication of f1, the frequency multiplication of f2 and intermodulation products of f1 and f2 are in a preset frequency range, wherein the preset frequency range is a frequency range causing interference on GPS signals;
if the network frequency point of the current operation of the network signal causes interference to the GPS signal, the step of switching the network signal to the preset network frequency point for operation comprises the following steps:
and if the frequency multiplication of f1, the frequency multiplication of f2 and the intermodulation products of f1 and f2 are in the preset frequency range, judging that the network frequency point of the current operation of the network signal causes interference to the GPS signal, and switching the network signal to the preset network frequency point for operation.
5. The method of claim 4, wherein the step of determining whether the multiplied frequency of f1, the multiplied frequency of f2, and the intermodulation product of f1 and f2 are in the preset frequency range comprises:
and judging whether the frequency multiplication of f1, the frequency multiplication of f2, the second-order intermodulation products of f1 and f2 and the third-order intermodulation products of f1 and f2 are in a preset frequency range.
6. The method of claim 1, wherein before the step of determining whether the network frequency point currently operated by the network signal causes interference to the GPS signal, the method comprises:
comparing the intensity of the GPS signal when the mobile terminal does not receive the network signal with the intensity of the GPS signal when the mobile terminal receives the network signal to obtain a comparison result;
the step of judging whether the network frequency point currently operated by the network signal causes interference to the GPS signal comprises the following steps:
and judging whether the network frequency point currently operated by the network signal causes interference to the GPS signal according to the comparison result.
7. The method as claimed in claim 6, wherein the step of comparing the strength of the GPS signal when the mobile terminal does not receive the network signal with the strength of the GPS signal when the mobile terminal receives the network signal to obtain the comparison result comprises:
acquiring the difference value of the intensity of the GPS signal when the mobile terminal does not receive the network signal and the intensity of the GPS signal when the mobile terminal receives the network signal;
the step of judging whether the network frequency point currently operated by the network signal causes interference to the GPS signal according to the comparison result comprises the following steps:
judging whether the difference value is within a preset difference value range or not;
if the network frequency point of the current operation of the network signal causes interference to the GPS signal, the network signal is switched to a preset network frequency point to operate, and the step that the preset network frequency point is the network frequency point which does not cause interference to the GPS signal comprises the following steps:
if the difference value is within the preset difference value range, judging that the network frequency point of the current operation of the network signal causes interference to the GPS signal, and switching the network signal to the preset network frequency point for operation.
8. An apparatus for reducing interference to GPS signals, the apparatus comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the computer program when executed by the processor implementing the steps of the method of cancelling interference to GPS signals as claimed in any one of claims 1 to 7.
9. A mobile terminal, characterized in that it comprises a memory, a processor and a computer program stored on said memory and executable on said processor, said computer program, when executed by said processor, implementing the steps of the method of cancelling interference to GPS signals according to any one of claims 1 to 7.
10. A computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, which computer program, when being executed by a processor, carries out the steps of the method of cancelling interference with a GPS signal according to any one of claims 1 to 7.
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| CN202110379999.5A CN113141642A (en) | 2021-04-08 | 2021-04-08 | Method, device, mobile terminal and storage medium for eliminating interference to GPS signal |
| PCT/CN2021/143222 WO2022213680A1 (en) | 2021-04-08 | 2021-12-30 | Method and apparatus for eliminating interference on gps signal, and mobile terminal and storage medium |
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| CN202110379999.5A CN113141642A (en) | 2021-04-08 | 2021-04-08 | Method, device, mobile terminal and storage medium for eliminating interference to GPS signal |
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| WO2022213680A1 (en) * | 2021-04-08 | 2022-10-13 | 青岛歌尔智能传感器有限公司 | Method and apparatus for eliminating interference on gps signal, and mobile terminal and storage medium |
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| WO2012044328A1 (en) * | 2010-10-01 | 2012-04-05 | Research In Motion Limited | Method and apparatus for avoiding in-device coexistence interference |
| US20200296659A1 (en) * | 2019-03-12 | 2020-09-17 | Cypress Semiconductor Corporation | Gps-assisted collaborative and signaling-aided wlan dfs operation |
| CN110149639A (en) * | 2019-05-28 | 2019-08-20 | 维沃移动通信有限公司 | A kind of interference processing method, terminal device and network side equipment |
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