CN109861712B - Method for reducing electromagnetic absorption ratio SAR, terminal and computer storage medium - Google Patents
Method for reducing electromagnetic absorption ratio SAR, terminal and computer storage medium Download PDFInfo
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- CN109861712B CN109861712B CN201910150117.0A CN201910150117A CN109861712B CN 109861712 B CN109861712 B CN 109861712B CN 201910150117 A CN201910150117 A CN 201910150117A CN 109861712 B CN109861712 B CN 109861712B
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Abstract
The embodiment of the application discloses a method for reducing SAR, which comprises the following steps: the method comprises the steps of obtaining a working frequency band of a terminal, generating a control instruction when the working frequency band of the terminal is a 5GNR frequency band and a preset frequency band, and reducing an upper limit value of the transmitting power of a 5G antenna corresponding to the 5GNR frequency band to a first preset threshold value according to the control instruction, and/or reducing the upper limit value of the transmitting power of the antenna corresponding to the preset frequency band to a second preset threshold value according to the control instruction so as to reduce the SAR of the terminal. The embodiment of the application also provides a terminal and a computer storage medium.
Description
Technical Field
The present disclosure relates to a technology for reducing an electromagnetic Absorption Rate (SAR) in a 5GNR terminal, and more particularly, to a method for reducing SAR, a terminal and a computer storage medium.
Background
With the popularization of terminals, people use terminals for longer and longer time, however, the influence of electromagnetic waves radiated by the terminals on human bodies is receiving more and more attention from people.
At present, 5GNR is a global fifth Generation mobile communication technology (5G, 5th-Generation) standard designed based on a completely new air interface of Orthogonal Frequency Division Multiplexing (OFDM), and for a 5GNR terminal, when the 5GNR terminal not only works in a 5GNR Frequency band but also works in other Frequency bands, then at this time, a plurality of communication systems of the mobile phone can work simultaneously, and all the communication systems working simultaneously should be opened, and a maximum SAR value after radiation field intensity is superimposed, that is, a combined SAR, is calculated.
However, because a plurality of communication systems work simultaneously, radiation fields generated by respective antennas can be mutually superposed, so that a combined SAR value is higher than that of any system when the system works independently, and the problem that the SAR value exceeds the standard is caused; therefore, the technical problem that the SAR value exceeds the standard exists in the terminal with a plurality of existing communication systems working simultaneously.
Disclosure of Invention
Embodiments of the present application are expected to provide a method, a terminal, and a computer storage medium for reducing SAR, which can reduce SAR values of terminals in which multiple communication systems operate simultaneously.
The technical scheme of the application is realized as follows:
the embodiment of the application provides a method for reducing SAR, which comprises the following steps:
the method comprises the steps of obtaining a working frequency band of a terminal, generating a control instruction when the working frequency band of the terminal is a 5GNR frequency band and a preset frequency band, reducing an upper limit value of transmitting power of a 5G antenna corresponding to the 5GNR frequency band to a first preset threshold value according to the control instruction, and/or reducing the upper limit value of the transmitting power of the antenna corresponding to the preset frequency band to a second preset threshold value according to the control instruction so as to reduce the SAR of the terminal.
In the above method, when the operating frequency band of the terminal is a 5GNR frequency band and a preset frequency band, generating a control instruction includes:
when the working frequency band of the terminal is the 5GNR frequency band and the preset frequency band, acquiring the external radiation power of the 5G antenna and the external radiation power of the antenna corresponding to the preset frequency band, and when the external radiation power of the 5G antenna and the external radiation power of the antenna corresponding to the preset frequency band are both smaller than a third preset threshold value, generating the control instruction.
In the above method, the preset frequency band includes:
the frequency band of the network system and/or the frequency band of the wireless fidelity WIFI.
In the above method, after the upper limit value of the transmission power of the 5G antenna corresponding to the 5GNR frequency band is reduced to a first preset threshold according to the control instruction, and/or the upper limit value of the transmission power of the antenna corresponding to the preset frequency band is reduced to a second preset threshold according to the control instruction, so as to reduce the SAR of the terminal, the method further includes:
and when the working frequency band of the terminal is the 5GNR frequency band, generating a recovery instruction, and recovering the upper limit value of the transmitting power of the 5G antenna to the initial upper limit value of the transmitting power of the 5G antenna according to the recovery instruction.
In the above method, after the upper limit value of the transmission power of the 5G antenna corresponding to the 5GNR frequency band is reduced to a first preset threshold according to the control instruction, and/or the upper limit value of the transmission power of the antenna corresponding to the preset frequency band is reduced to a second preset threshold according to the control instruction, so as to reduce the SAR of the terminal, the method further includes:
and when the working frequency band of the terminal is the preset frequency band, generating a recovery instruction, and recovering the upper limit value of the transmitting power of the antenna corresponding to the preset frequency band to the initial upper limit value of the transmitting power of the antenna corresponding to the preset frequency band according to the recovery instruction.
In the above method, when the preset frequency band is a frequency band of a network system, correspondingly, after the upper limit value of the transmission power of the 5G antenna corresponding to the 5GNR frequency band is reduced to a first preset threshold according to the control instruction, and/or the upper limit value of the transmission power of the antenna corresponding to the preset frequency band is reduced to a second preset threshold according to the control instruction, so as to reduce the SAR of the terminal, the method further includes:
and obtaining the external radiation power of the 5G antenna and the external radiation power of the network type antenna, and closing the 5G antenna or the network type antenna according to the external radiation power of the 5G antenna and the external radiation power of the network type antenna.
In the above method, the turning off the 5G antenna or the antenna of the network system according to the external radiation power of the 5G antenna and the external radiation power of the antenna of the network system includes:
and when the external radiation power of the 5G antenna is greater than that of the antenna corresponding to the frequency band of the network standard, closing the 5G antenna, and when the external radiation power of the 5G antenna is less than or equal to that of the antenna corresponding to the frequency band of the network standard, closing the antenna of the network standard.
The embodiment of the application provides a storage control system, the terminal includes:
the first acquisition unit is used for acquiring the working frequency band of the terminal;
the generating unit is used for generating a control instruction when the working frequency band of the terminal is a 5GNR frequency band and a preset frequency band;
and the reducing unit is used for reducing the transmitting power of the 5G antenna corresponding to the 5GNR frequency band to a first preset threshold value according to the control instruction, and/or reducing the transmitting power of the antenna corresponding to the preset frequency band to a second preset threshold value according to the control instruction so as to reduce the SAR of the terminal.
In the above terminal, the generating unit is specifically configured to:
when the working frequency band of the terminal is the 5GNR frequency band and the preset frequency band, acquiring the external radiation power of the 5G antenna and the external radiation power of the antenna corresponding to the preset frequency band, and when the external radiation power of the 5G antenna and the external radiation power of the antenna corresponding to the preset frequency band are both smaller than a third preset threshold value, generating the control instruction.
In the above terminal, the preset frequency band includes:
the frequency band of the network system and/or the frequency band of the wireless fidelity WIFI.
In the above terminal, the terminal further includes:
and the first recovery unit is used for reducing the upper limit value of the transmitting power of the 5G antenna corresponding to the 5GNR frequency band to a first preset threshold value according to the control instruction, and/or reducing the upper limit value of the transmitting power of the antenna corresponding to the preset frequency band to a second preset threshold value according to the control instruction so as to reduce the SAR of the terminal, then generating a recovery instruction when the working frequency band of the terminal is the 5GNR frequency band, and recovering the upper limit value of the transmitting power of the 5G antenna to the initial upper limit value of the transmitting power of the 5G antenna according to the recovery instruction.
In the above terminal, the terminal further includes:
and the second recovery unit is used for reducing the upper limit value of the transmitting power of the 5G antenna corresponding to the 5GNR frequency band to a first preset threshold value according to the control instruction, and/or reducing the upper limit value of the transmitting power of the antenna corresponding to the preset frequency band to a second preset threshold value according to the control instruction so as to reduce the SAR of the terminal, generating a recovery instruction when the working frequency band of the terminal is the preset frequency band, and recovering the upper limit value of the transmitting power of the antenna corresponding to the preset frequency band to the initial upper limit value of the transmitting power of the antenna corresponding to the preset frequency band according to the recovery instruction.
In the above terminal, when the preset frequency band is a frequency band of a network system, the terminal further includes:
a second obtaining unit, configured to reduce, according to the control instruction, an upper limit value of transmission power of a 5G antenna corresponding to the 5GNR frequency band to a first preset threshold, and/or reduce, according to the control instruction, an upper limit value of transmission power of an antenna corresponding to the preset frequency band to a second preset threshold, so as to reduce the SAR of the terminal, and then obtain external radiation power of the 5G antenna and external radiation power of an antenna of the network system;
and the closing unit is used for closing the 5G antenna or the antenna of the network system according to the external radiation power of the 5G antenna and the external radiation power of the antenna of the network system.
In the above terminal, the closing unit is specifically configured to:
and when the external radiation power of the 5G antenna is greater than that of the antenna corresponding to the frequency band of the network standard, closing the 5G antenna, and when the external radiation power of the 5G antenna is less than or equal to that of the antenna corresponding to the frequency band of the network standard, closing the antenna of the network standard.
An embodiment of the present application further provides a terminal, where the terminal includes: a processor and a storage medium storing instructions executable by the processor to perform operations in dependence on the processor via a communication bus, the instructions when executed by the processor performing the method of reducing SAR of one or more embodiments described above.
Embodiments of the present application provide a computer storage medium storing executable instructions that, when executed by one or more processors, perform the method for reducing SAR of one or more of the above embodiments.
The embodiment of the application provides a method, a terminal and a computer storage medium for reducing SAR, wherein the method comprises the following steps: firstly, acquiring a working frequency band of a terminal, generating a control instruction when the working frequency band of the terminal is a 5GNR frequency band and a preset frequency band, and reducing an upper limit value of the transmitting power of a 5G antenna corresponding to the 5GNR frequency band to a first preset threshold value according to the control instruction, and/or reducing the upper limit value of the transmitting power of an antenna corresponding to the preset frequency band to a second preset threshold value according to the control instruction so as to reduce the SAR of the terminal; that is to say, in the embodiment of the present application, whether the terminal simultaneously operates in the 5GNR frequency band and the preset frequency band is determined according to the obtained operating frequency band of the terminal, when the terminal simultaneously operates in the 5GNR frequency band and the preset frequency band, a control instruction is generated, the upper limit value of the transmission power of the 5G antenna is reduced to the first preset threshold value by the control instruction, and/or the upper limit value of the transmission power of the antenna corresponding to the preset frequency band is reduced to the second preset threshold value by the control instruction, so that when the terminal simultaneously operates in the 5GNR frequency band and the preset frequency band, in order to reduce the SAR after the superposition of the 5GNR frequency band and the preset frequency band, the SAR is reduced by reducing the upper limit value of the transmission power of the 5G antenna and/or the antenna corresponding to the preset frequency band, thus, the technical problem that the SAR value of the terminal simultaneously operating in multiple communication systems exceeds the standard is solved, thereby reducing the SAR of the terminal, thereby reducing the radiation of the terminal to the human body.
Drawings
Fig. 1 is a schematic flowchart of an alternative method for reducing SAR according to an embodiment of the present disclosure;
fig. 2 is a schematic flowchart of another alternative method for reducing SAR according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of components used for reducing SAR values in a first alternative 5GNR terminal provided in an embodiment of the present application;
fig. 4 is a schematic structural diagram of components used for reducing SAR values in a second alternative 5GNR terminal provided in an embodiment of the present application;
fig. 5 is a schematic structural diagram of components for reducing SAR values in a third alternative 5GNR terminal provided in an embodiment of the present application;
fig. 6 is a schematic structural diagram of components for reducing SAR values in a fourth alternative 5GNR terminal provided in an embodiment of the present application;
fig. 7 is a schematic structural diagram of components used for reducing SAR values in a fifth alternative 5GNR terminal provided in an embodiment of the present application;
fig. 8 is a schematic structural diagram of components used for reducing the SAR value in a sixth alternative 5GNR terminal provided in an embodiment of the present application;
fig. 9 is a schematic structural diagram of components used for reducing SAR values in a seventh alternative 5GNR terminal provided in an embodiment of the present application;
fig. 10 is a schematic structural diagram of components for reducing SAR values in an eighth alternative 5GNR terminal provided in an embodiment of the present application;
fig. 11 is a schematic structural diagram of components used for reducing SAR values in a ninth alternative 5GNR terminal provided in an embodiment of the present application;
fig. 12 is a schematic structural diagram of components used for reducing SAR values in a tenth alternative 5GNR terminal provided in an embodiment of the present application;
fig. 13 is a schematic structural diagram of components used for reducing SAR values in an eleventh alternative 5GNR terminal provided in an embodiment of the present application;
fig. 14 is a schematic structural diagram of components used for reducing SAR values in a twelfth alternative 5GNR terminal provided in an embodiment of the present application;
fig. 15 is a first schematic structural diagram of a terminal according to an embodiment of the present application;
fig. 16 is a schematic structural diagram of a terminal according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.
Example one
An embodiment of the present application provides a method for reducing an SAR, where the method is applied to a terminal, fig. 1 is a schematic flow diagram of an optional method for reducing the SAR provided in the embodiment of the present application, and as shown in fig. 1, the method for reducing the SAR may include:
s101: acquiring a working frequency band of a terminal;
in the Long-time communication process using the terminal, the terminal is close to the human body, and at this time, the harm to the radiation energy of the human body is particularly obvious, for the 5GNR terminal, if the 5GNR terminal is connected to a 5G base station and a Long Term Evolution (LTE) base station at the same time, that is, an E-UTRA-NR dual connection, then, when the 5GNR terminal works in the 5GNR frequency band and the LTE frequency band at the same time, the SAR value is a value obtained by superimposing the radiation field intensity of the 5G antenna and the radiation field intensity of the LTE antenna, that is, a combined SAR value, however, the combined SAR value is higher than the SAR value when any one system works alone, and the SAR value exceeds the standard.
In order to prevent the SAR value from exceeding the standard, first, an operating frequency band of the terminal is obtained, specifically, for example, a frequency band in which the operating frequency band is a network system, a Modem (Modem) module of the 5GNR terminal monitors a radio frequency chip of the 5GNR terminal, and an operating frequency point and a channel of the 5GNR terminal are obtained.
Taking the working frequency band as the frequency band of the network system as an example, the Application Processor (AP) module monitors the radio frequency chip and the WIreless Fidelity (WIFI) chip to obtain the working frequency point and the channel of the 5GNR terminal.
Thus, according to the monitored working frequency band and channel of 5GNR, the working frequency band of 5GNR can be obtained.
S102: when the working frequency range of the terminal is a 5GNR frequency range and a preset frequency range, generating a control instruction;
after the working frequency band of the terminal is obtained through S101, it is determined whether the terminal simultaneously works in the 5GNR frequency band and the preset frequency band, where the preset frequency band may include: the frequency band of the network system and/or the frequency band of the wireless fidelity WIFI.
The network system may include: code Division Multiple Access (CDMA), Global System For Mobile Communications (GSM), third Generation Mobile communication technology (3G, 3rd-Generation), and LTE; here, the embodiments of the present application are not particularly limited.
In S102, when the operating frequency band of the terminal simultaneously operates in the 5GNR frequency band and the preset frequency band, that is, the terminal simultaneously operates in at least two frequency bands, there is a hidden danger that the SAR value exceeds the standard, and in order to prevent the SAR value from exceeding the standard, a control instruction is generated, and the control instruction is used for controlling the terminal, thereby achieving the purpose of reducing the SAR value.
In order to further determine whether the terminal has the problem that the SAR value exceeds the standard, in an alternative embodiment, S102 may include:
when the working frequency band of the terminal is a 5GNR frequency band and a preset frequency band, acquiring the external radiation power of a 5G antenna and the external radiation power of an antenna corresponding to the preset frequency band;
and when the external radiation power of the 5G antenna and the external radiation power of the antenna corresponding to the preset frequency band are both smaller than a third preset threshold, generating a control instruction.
Specifically, when the working frequency band of the terminal is determined to be the 5GNR frequency band and the preset frequency band, that is, when the terminal simultaneously works in at least two frequency bands, at this time, the external radiation power of the 5G antenna and the external radiation power of the antenna corresponding to the preset frequency band are obtained, the external radiation power of the 5G antenna and the external radiation power of the antenna corresponding to the preset frequency band are respectively compared with a third preset threshold, if the external radiation power of the 5G antenna and the external radiation power of the antenna corresponding to the preset frequency band are both smaller than the third preset threshold, it is indicated that the antenna corresponding to the 5G antenna and the preset frequency band is closer to the user of the terminal at this time, and the SAR value is higher, therefore, the control instruction is generated when the external radiation power of the 5G antenna and the external radiation power of the antenna corresponding to the preset frequency band are both determined to be smaller than the third preset threshold value, therefore, whether the SAR value exceeds the standard or not is further determined by judging the external radiation power of the antenna.
In addition, if any one of the external radiation power of the 5G antenna and the external radiation power of the antenna corresponding to the preset frequency band is smaller than a third preset threshold, it is determined that the possibility that the SAR value exceeds the standard is low.
And determining whether the SAR value exceeds the standard or not by judging the relation between the external radiation power of the antenna and a third preset threshold, so that a redundant instruction generated by misjudgment that the SAR value exceeds the standard can be avoided, and the processing task of the terminal is reduced.
S103: and reducing the upper limit value of the transmitting power of the 5G antenna corresponding to the 5GNR frequency band to a first preset threshold value according to the control instruction, and/or reducing the upper limit value of the transmitting power of the antenna corresponding to the preset frequency band to a second preset threshold value according to the control instruction so as to reduce the SAR of the terminal.
After the control instruction is obtained, limiting an upper limit value of the transmission power of the 5G antenna corresponding to the 5GNR frequency band according to the control instruction, and/or limiting an upper limit value of the transmission power of the antenna corresponding to the preset frequency band according to the control instruction, specifically, reducing the upper limit value of the transmission power of the 5G antenna to a first preset threshold value, and/or reducing the upper limit value of the transmission power of the antenna corresponding to the preset frequency band to a second preset threshold value, where the first preset threshold value and the second preset threshold value may be the same or different, and embodiments of the present application are not specifically limited.
In practical applications, the first preset threshold and the second preset threshold may be 20dbm, and the initial upper limit of the transmission power may be 23 dbm.
Therefore, by limiting the upper limit value of the transmitting power of the 5G antenna and/or limiting the upper limit value of the transmitting power of the antenna corresponding to the preset frequency band, the energy of the radiation fields of the 5G antenna and the antenna corresponding to the preset frequency band is weakened, and the SAR value meets the requirement.
In order to recover the energy of the radiation field of the antenna in time, in an alternative embodiment, after S103, the method may include:
when the working frequency range of the terminal is the 5GNR frequency range, a recovery instruction is generated;
and restoring the upper limit value of the transmission power of the 5G antenna to the initial upper limit value of the transmission power of the 5G antenna according to the restoring instruction.
Specifically, after the upper limit value of the transmission power of the 5G antenna and/or the antenna corresponding to the preset frequency band is reduced to the first preset threshold and the second preset threshold, when the working frequency band of the terminal is detected to be the 5GNR frequency band, that is, the working frequency band of the terminal only works in one frequency band, only the 5G antenna works, and at this time, it is considered that the SAR value does not have a hidden danger of exceeding the standard, so that a recovery instruction is generated, and the upper limit value of the transmission power of the 5G antenna is recovered to the initial upper limit value of the transmission power of the 5G antenna, so that the normal work of the radiation field of the 5G antenna is ensured.
In order to recover the energy of the radiation field of the antenna in time, in an alternative embodiment, after S103, the method may include:
when the working frequency band of the terminal is a preset frequency band, generating a recovery instruction;
and restoring the upper limit value of the transmitting power of the antenna corresponding to the preset frequency band to the initial upper limit value of the transmitting power of the antenna corresponding to the preset frequency band according to the restoring instruction.
Specifically, after the upper limit value of the transmission power of the 5G antenna and/or the antenna corresponding to the preset frequency band is reduced to the first preset threshold value and the second preset threshold value, when the working frequency band of the terminal is detected to be the preset frequency band, that is, the working frequency band of the terminal only works in one frequency band at the moment, only the antenna corresponding to the preset frequency band works, and at the moment, the SAR value is considered to be free of the hidden danger of exceeding the standard, so that a recovery instruction is generated, and the upper limit value of the transmission power of the antenna corresponding to the preset frequency band is recovered to the initial upper limit value of the transmission power of the antenna corresponding to the preset frequency band, so that the normal work of the radiation field of the antenna corresponding to the preset frequency band is ensured.
In order to further reduce the SAR value, in an optional embodiment, fig. 2 is a schematic flow chart of another optional method for reducing SAR provided in the embodiment of the present application, as shown in fig. 2, when the preset frequency band is a frequency band of a network system, the step after S103 may include:
s201: acquiring the external radiation power of a 5G antenna and the external radiation power of a network type antenna;
s202: and closing the 5G antenna or the network type antenna according to the external radiation power of the 5G antenna and the external radiation power of the network type antenna.
That is to say, after the upper limit value of the transmission power of the 5G antenna and/or the antenna corresponding to the preset frequency band is reduced to the first preset threshold and the second preset threshold, the external radiation power of the 5G antenna and the external radiation power of the antenna of the network system are obtained through detection, where the external radiation power of the antenna may be used to determine the SAR value, and when the SAR value is determined to be very high through determination, the SAR value may be reduced by using one antenna to close another antenna.
To further reduce the SAR value, in an alternative embodiment, S202 may include:
when the external radiation power of the 5G antenna is larger than that of the antenna corresponding to the frequency band of the network system, closing the 5G antenna;
and when the external radiation power of the 5G antenna is less than or equal to the external radiation power of the antenna corresponding to the frequency band of the network system, closing the antenna of the network system.
That is to say, when the external radiation power of the 5G antenna is greater than the external radiation power of the antenna corresponding to the frequency band of the network system, it is indicated that the 5G antenna is closer to the user of the terminal than the antenna corresponding to the frequency band of the network system, and in order to reduce the radiation of the 5G antenna to the user of the terminal, the 5G antenna is turned off, and the antenna of the network system is used, so that the SAR value is reduced, and the radiation of the terminal to the user is also reduced.
When the external radiation power of the 5G antenna is less than or equal to the external radiation power of the antenna corresponding to the frequency band of the network system, the antenna corresponding to the frequency band of the network system is closer to a user of the terminal compared with the 5G antenna, and in order to reduce the radiation of the antenna corresponding to the frequency band of the network system to the user of the terminal, the antenna corresponding to the frequency band of the network system is closed, and the 5G antenna is used, so that the SAR value is reduced, and the radiation of the terminal to the user is also reduced.
The method for reducing SAR in one or more of the above embodiments is described below by way of example.
Taking a preset frequency band as an LTE frequency band as an example, fig. 3 is a schematic structural diagram of each component for reducing an SAR value in a first optional 5GNR terminal provided in the embodiment of the present application, as shown in fig. 3, the component for reducing the SAR value of the 5GNR terminal includes: the system comprises a Modem module, a radio frequency chip, an LTE antenna and a 5G antenna; when the 5GNR terminal operates in the LTE frequency band and the 5GNR frequency band simultaneously, as shown in fig. 3, a superposition field is formed by the radiation field generated by the LTE antenna and the radiation field generated by the 5G antenna.
In order to reduce the SAR value of the 5GNR terminal, fig. 4 is a schematic structural diagram of components for reducing the SAR value in a second alternative 5GNR terminal provided in the embodiment of the present application; the Modem module is connected with the main chip and the sim (subscriber identity module) card module, the Modem module in the 5GNR terminal monitors a working frequency point and a channel in the radio frequency chip, and determines that the 5GNR terminal simultaneously works in the LTE frequency band and the 5GNR frequency band according to the monitored working frequency point and channel in the radio frequency chip, and the Modem module reduces an upper limit value of transmission power of the LTE antenna through the radio frequency chip, so that a radiation field of the LTE antenna is reduced, and further a superposition field is reduced, as shown in fig. 4.
In order to reduce the SAR value of the 5GNR terminal, fig. 5 is a schematic structural diagram of components for reducing the SAR value in a third alternative 5GNR terminal provided in the embodiment of the present application; the Modem module in the 5GNR terminal monitors a working frequency point and a channel in the radio frequency chip, and determines that the 5GNR terminal simultaneously works in the LTE frequency band and the 5GNR frequency band according to the monitored working frequency point and channel in the radio frequency chip, and the Modem module reduces an upper limit value of transmission power of the 5G antenna through the radio frequency chip, so that a radiation field of the 5G antenna is reduced, and further a superposition field is reduced, as shown in fig. 5.
In order to reduce the SAR value of the 5GNR terminal, fig. 6 is a schematic structural diagram of components for reducing the SAR value in a fourth optional 5GNR terminal provided in the embodiment of the present application; the Modem module in the 5GNR terminal monitors a working frequency point and a channel in the radio frequency chip, and determines that the 5GNR terminal simultaneously works in the LTE frequency band and the 5GNR frequency band according to the monitored working frequency point and channel in the radio frequency chip, and the Modem module reduces the upper limit value of the transmission power of the 5G antenna and the upper limit value of the transmission power of the LTE antenna through the radio frequency chip, so that the radiation field of the 5G antenna and the radiation field of the LTE antenna are both reduced, and further the superposition field is reduced, as shown in fig. 6.
In addition, after the upper limit of the transmission power of the 5G antenna and/or the upper limit of the transmission power of the LTE antenna is reduced, when the LTE frequency band and the 5G frequency band in the 5GNR terminal do not simultaneously operate, for example, when only the LTE antenna operates, the 5G antenna does not operate, and there is no radiation field or superposition field, fig. 7 is a schematic structural diagram of each component for reducing the SAR value in the fifth optional 5GNR terminal provided in this embodiment; as shown in fig. 7, the upper limit values of the transmission power of the 5G antenna and the LTE antenna are both restored to the initial upper limit values, so that the operating state is restored to normal.
When the LTE frequency band and the 5G frequency band in the 5GNR terminal do not operate simultaneously, for example, when only the 5G antenna operates, the LTE antenna does not operate, and there is no radiation field and no superposition field, fig. 8 is a schematic structural diagram of each component for reducing the SAR value in the sixth optional 5GNR terminal provided in this embodiment; as shown in fig. 8, the upper limit values of the transmission power of the 5G antenna and the LTE antenna are both restored to the initial upper limit values, so that the operating state is restored to normal.
Therefore, the above example starts from the transmitting power of the antenna, reduces the intensity and range of the spatial radiation field of the LTE frequency band or the 5GNR frequency band, avoids the overlarge intensity of the radiation field after the two radiation fields are mutually superposed, achieves the purpose of weakening the radiation superposed field, and reduces the combined SAR value.
In practical application, the LTE frequency band and the 5GNR frequency band can be identified to work simultaneously through a software scheme, then the working antenna is switched, and the 5G antenna and the LTE antenna are spaced apart from each other by a spatial distance, so as to achieve the purpose of reducing the intensity of the superimposed field.
In addition, taking the preset frequency band as the WIFI frequency band as an example, fig. 9 is a schematic structural diagram of each component for reducing the SAR value in the seventh optional 5GNR terminal provided in the embodiment of the present application, as shown in fig. 9, the component for reducing the SAR value of the 5GNR terminal includes: the wireless sensor network comprises an AP module, a radio frequency chip, a WIFI antenna and a 5G antenna; when the 5GNR terminal operates in the LTE frequency band and the 5GNR frequency band simultaneously, as shown in fig. 3, the radiation field generated by the WIFI antenna and the radiation field generated by the 5G antenna form a superimposed field.
In order to reduce the SAR value of the 5GNR terminal, fig. 10 is a schematic structural diagram of components for reducing the SAR value in an eighth alternative 5GNR terminal provided in the embodiment of the present application; the AP module is connected with the radio frequency chip and the WIFI chip, the AP module in the 5GNR terminal monitors working frequency points and channels in the radio frequency chip, and monitors working frequency points and channels in the WIFI chip, the 5GNR terminal is determined to work in a WIFI frequency band and a 5GNR frequency band simultaneously according to the monitored working frequency points and channels in the radio frequency chip and working frequency points and channels in the WIFI chip, the AP module reduces the upper limit value of the transmitting power of the WIFI antenna through the WIFI chip, the radiation field of the WIFI antenna is reduced, and then the superposition field is reduced, as shown in fig. 10.
In order to reduce the SAR value of the 5GNR terminal, fig. 11 is a schematic structural diagram of components for reducing the SAR value in a ninth optional 5GNR terminal provided in the embodiment of the present application; the AP module in the 5GNR terminal monitors working frequency points and channels in the radio frequency chip and monitors working frequency points and channels in the WIFI chip, the 5GNR terminal is determined to work in a WIFI frequency band and a 5GNR frequency band simultaneously according to the monitored working frequency points and channels in the radio frequency chip and the working frequency points and channels in the WIFI chip, the AP module reduces the upper limit value of the transmitting power of the 5G antenna through the radio frequency chip, the radiation field of the 5G antenna is reduced, and then the superposition field is reduced, as shown in fig. 11.
In order to reduce the SAR value of the 5GNR terminal, fig. 12 is a schematic structural diagram of components for reducing the SAR value in a tenth optional 5GNR terminal provided in the embodiment of the present application; the AP module in the 5GNR terminal monitors working frequency points and channels in a radio frequency chip and monitors working frequency points and channels in a WIFI chip, the 5GNR terminal is determined to work in a WIFI frequency band and a 5GNR frequency band simultaneously according to the monitored working frequency points and channels in the radio frequency chip and the working frequency points and channels in the WIFI chip, the AP module reduces the upper limit value of the transmitting power of the 5G antenna through the radio frequency chip and reduces the upper limit value of the transmitting power of the WIFI antenna through the WIFI chip, the radiation field of the 5G antenna and the radiation field of the WIFI antenna are reduced, and the superposition field is reduced, as shown in fig. 5.
In addition, when the WIFI frequency band and the 5G frequency band in the 5GNR terminal do not work simultaneously, for example, when only the WIFI antenna works, the 5G antenna does not work, and there is no radiation field and no superimposed field, fig. 13 is a schematic structural diagram of each component for reducing the SAR value in the eleventh optional 5GNR terminal provided in this embodiment of the present application; as shown in fig. 13, the upper limit values of the transmission power of the 5G antenna and the transmission power of the WIFI antenna are both restored to the initial upper limit values, so that the operating state is restored to normal.
When the WIFI frequency band and the 5G frequency band in the 5GNR terminal do not work simultaneously, for example, when only the 5G antenna works, the WIFI antenna does not work, and there is no radiation field and no superimposed field, fig. 14 is a schematic structural diagram of each component for reducing the SAR value in the twelfth optional 5GNR terminal provided in this embodiment of the present application; as shown in fig. 14, the upper limit values of the transmission power of the 5G antenna and the transmission power of the WIFI antenna are both restored to the initial upper limit values, so that the operating state is restored to normal.
Therefore, the strength and the range of the space radiation field of the WIFI frequency band or the 5GNR frequency band are reduced by starting from the transmission power through the example, the overlarge strength of the radiation fields after the radiation fields are mutually superposed is avoided, the purpose of weakening the radiation superposed field is achieved, and the combined SAR value is reduced.
In addition, the WIFI frequency band and the 5GNR frequency band can be identified to work simultaneously through a software scheme, then the working antenna is switched, and the 5G antenna and the WIFI antenna are separated by a spatial distance, so that the purpose of reducing the intensity of the superposed field is achieved, but the scheme needs to be matched with a power reduction scheme for synchronous use.
The embodiment of the application provides a method for reducing SAR, which comprises the following steps: firstly, acquiring a working frequency band of a terminal, generating a control instruction when the working frequency band of the terminal is a 5GNR frequency band and a preset frequency band, and reducing an upper limit value of the transmitting power of a 5G antenna corresponding to the 5GNR frequency band to a first preset threshold value according to the control instruction, and/or reducing the upper limit value of the transmitting power of an antenna corresponding to the preset frequency band to a second preset threshold value according to the control instruction so as to reduce the SAR of the terminal; that is to say, in the embodiment of the present application, whether the terminal simultaneously operates in the 5GNR frequency band and the preset frequency band is determined according to the obtained operating frequency band of the terminal, when the terminal simultaneously operates in the 5GNR frequency band and the preset frequency band, a control instruction is generated, the upper limit value of the transmission power of the 5G antenna is reduced to the first preset threshold value by the control instruction, and/or the upper limit value of the transmission power of the antenna corresponding to the preset frequency band is reduced to the second preset threshold value by the control instruction, so that when the terminal simultaneously operates in the 5GNR frequency band and the preset frequency band, in order to reduce the SAR after the superposition of the 5GNR frequency band and the preset frequency band, the SAR is reduced by reducing the upper limit value of the transmission power of the 5G antenna and/or the antenna corresponding to the preset frequency band, thus, the technical problem that the SAR value of the terminal simultaneously operating in multiple communication systems exceeds the standard is solved, thereby reducing the SAR of the terminal, thereby reducing the radiation of the terminal to the human body.
Example two
Fig. 15 is a first schematic structural diagram of a terminal provided in an embodiment of the present application, and as shown in fig. 15, an embodiment of the present application provides a terminal, where the terminal may include:
a first obtaining unit 151, configured to obtain an operating frequency band of a terminal;
a generating unit 152, configured to generate a control instruction when the operating frequency band of the terminal is the 5GNR frequency band and the preset frequency band;
the reducing unit 153 is configured to reduce the transmission power of the 5G antenna corresponding to the 5GNR frequency band to a first preset threshold according to the control instruction, and/or reduce the transmission power of the antenna corresponding to the preset frequency band to a second preset threshold according to the control instruction, so as to reduce the SAR of the terminal.
Optionally, the generating unit 152 is specifically configured to:
when the working frequency band of the terminal is a 5GNR frequency band and a preset frequency band, acquiring the external radiation power of the 5G antenna and the external radiation power of the antenna corresponding to the preset frequency band, and when the external radiation power of the 5G antenna and the external radiation power of the antenna corresponding to the preset frequency band are both smaller than a third preset threshold value, generating a control instruction.
Optionally, the preset frequency band includes: and the frequency band of the network system and/or the frequency band of WIFI.
Optionally, the terminal further includes:
and the first recovery unit is used for reducing the upper limit value of the transmitting power of the 5G antenna corresponding to the 5GNR frequency band to a first preset threshold value according to the control instruction, and/or reducing the upper limit value of the transmitting power of the antenna corresponding to the preset frequency band to a second preset threshold value according to the control instruction so as to reduce the SAR of the terminal, and then generating a recovery instruction when the working frequency band of the terminal is the 5GNR frequency band, and recovering the upper limit value of the transmitting power of the 5G antenna to the initial upper limit value of the transmitting power of the 5G antenna according to the recovery instruction.
Optionally, the terminal further includes:
and the second recovery unit is used for reducing the upper limit value of the transmitting power of the 5G antenna corresponding to the 5GNR frequency band to a first preset threshold value according to the control instruction, and/or reducing the upper limit value of the transmitting power of the antenna corresponding to the preset frequency band to a second preset threshold value according to the control instruction, so as to generate a recovery instruction when the working frequency band of the terminal is the preset frequency band after reducing the SAR of the terminal, and recovering the upper limit value of the transmitting power of the antenna corresponding to the preset frequency band to the initial upper limit value of the transmitting power of the antenna corresponding to the preset frequency band according to the recovery instruction.
Optionally, when the preset frequency band is a frequency band of a network system, the terminal further includes:
the second obtaining unit is used for reducing the upper limit value of the transmitting power of the 5G antenna corresponding to the 5GNR frequency band to a first preset threshold value according to the control instruction, and/or reducing the upper limit value of the transmitting power of the antenna corresponding to the preset frequency band to a second preset threshold value according to the control instruction so as to reduce the SAR of the terminal, and then obtaining the external radiation power of the 5G antenna and the external radiation power of the antenna of the network system;
and the closing unit is used for closing the 5G antenna or the network type antenna according to the external radiation power of the 5G antenna and the external radiation power of the network type antenna.
Optionally, the closing unit is specifically configured to:
and when the external radiation power of the 5G antenna is greater than that of the antenna corresponding to the frequency band of the network system, the 5G antenna is closed, and when the external radiation power of the 5G antenna is less than or equal to that of the antenna corresponding to the frequency band of the network system, the antenna of the network system is closed.
In practical applications, the first obtaining Unit 151, the generating Unit 152, the reducing Unit 153, the first recovering Unit, the second obtaining Unit and the closing Unit may be implemented by a processor located on a terminal, specifically, a Central Processing Unit (CPU), a Microprocessor Unit (MPU), a Digital Signal Processing (DSP), a Field Programmable Gate Array (FPGA), or the like.
Fig. 16 is a schematic structural diagram of a second terminal provided in the embodiment of the present application, and as shown in fig. 16, the embodiment of the present application provides a terminal 1600, including:
a processor 161 and a storage medium 162 storing instructions executable by the processor 161, wherein the storage medium 162 depends on the processor 161 to perform operations via a communication bus 163, and when the instructions are executed by the processor 161, the method for reducing SAR as described in the first embodiment is performed.
It should be noted that, in practical applications, the various components in the terminal are coupled together by a communication bus 163. It is understood that the communication bus 163 is used to enable connection communication between these components. The communication bus 163 includes a power bus, a control bus, and a status signal bus, in addition to a data bus. But for clarity of illustration the various buses are labeled in figure 16 as communication bus 163.
Embodiments of the present application provide a computer storage medium storing executable instructions that, when executed by one or more processors, perform the method for reducing SAR of embodiment one.
The computer-readable storage medium may be a magnetic random access Memory (FRAM), a Read Only Memory (ROM), a Programmable Read Only Memory (PROM), an Erasable Programmable Read Only Memory (EPROM), an Electrically Erasable Programmable Read Only Memory (EEPROM), a Flash Memory (Flash Memory), a magnetic surface Memory, an optical Disc, or a Compact Disc Read-Only Memory (CD-ROM), among others.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of a hardware embodiment, a software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above description is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application.
Claims (8)
1. A method of reducing an electromagnetic absorption ratio, SAR, the method comprising:
acquiring a working frequency band of a terminal;
when the working frequency range of the terminal is a 5GNR frequency range and a preset frequency range, generating a control instruction; wherein, the preset frequency band includes: a frequency band of a network system and/or a frequency band of wireless fidelity (WIFI); the frequency bands of the network standard are respectively corresponding to code division multiple access CDMA, global system for mobile communications GSM, third generation mobile communication technology 3G and long term evolution LTE;
according to the control instruction, reducing the upper limit value of the transmitting power of the 5G antenna corresponding to the 5GNR frequency band to a first preset threshold value, and/or reducing the upper limit value of the transmitting power of the antenna corresponding to the preset frequency band to a second preset threshold value according to the control instruction so as to reduce the SAR of the terminal;
when the working frequency band of the terminal is a 5GNR frequency band and a preset frequency band, generating a control instruction, including:
when the working frequency band of the terminal is the 5GNR frequency band and the preset frequency band, acquiring the external radiation power of the 5G antenna and the external radiation power of the antenna corresponding to the preset frequency band;
and when the external radiation power of the 5G antenna and the external radiation power of the antenna corresponding to the preset frequency band are both smaller than a third preset threshold value, generating the control instruction.
2. The method according to claim 1, wherein after the upper limit value of the transmission power of the 5G antenna corresponding to the 5GNR frequency band is reduced to a first preset threshold according to the control instruction, and/or the upper limit value of the transmission power of the antenna corresponding to the preset frequency band is reduced to a second preset threshold according to the control instruction, so as to reduce the SAR of the terminal, the method further comprises:
when the working frequency band of the terminal is the 5GNR frequency band, generating a recovery instruction;
and restoring the upper limit value of the transmission power of the 5G antenna to the initial upper limit value of the transmission power of the 5G antenna according to the restoring instruction.
3. The method according to claim 1, wherein after the upper limit value of the transmission power of the 5G antenna corresponding to the 5GNR frequency band is reduced to a first preset threshold according to the control instruction, and/or the upper limit value of the transmission power of the antenna corresponding to the preset frequency band is reduced to a second preset threshold according to the control instruction, so as to reduce the SAR of the terminal, the method further comprises:
when the working frequency band of the terminal is the preset frequency band, generating a recovery instruction;
and restoring the upper limit value of the transmitting power of the antenna corresponding to the preset frequency band to the initial upper limit value of the transmitting power of the antenna corresponding to the preset frequency band according to the restoring instruction.
4. The method according to claim 1, wherein when the predetermined band is a band of a network system,
correspondingly, after the upper limit value of the transmission power of the 5G antenna corresponding to the 5GNR frequency band is reduced to a first preset threshold according to the control instruction, and/or the upper limit value of the transmission power of the antenna corresponding to the preset frequency band is reduced to a second preset threshold according to the control instruction, so as to reduce the SAR of the terminal, the method further includes:
acquiring the external radiation power of the 5G antenna and the external radiation power of the network type antenna;
and closing the 5G antenna or the antenna of the network system according to the external radiation power of the 5G antenna and the external radiation power of the antenna of the network system.
5. The method according to claim 4, wherein turning off the 5G antenna or the antenna of the network standard according to the external radiation power of the 5G antenna and the external radiation power of the antenna of the network standard comprises:
when the external radiation power of the 5G antenna is greater than that of the antenna corresponding to the frequency band of the network system, closing the 5G antenna;
and when the external radiation power of the 5G antenna is less than or equal to the external radiation power of the antenna corresponding to the frequency band of the network standard, closing the antenna of the network standard.
6. A terminal, characterized in that the terminal comprises:
the first acquisition unit is used for acquiring the working frequency band of the terminal;
the generating unit is used for acquiring the external radiation power of the 5G antenna and the external radiation power of the antenna corresponding to the preset frequency band when the working frequency band of the terminal is a 5GNR frequency band and the preset frequency band; when the external radiation power of the 5G antenna and the external radiation power of the antenna corresponding to the preset frequency band are both smaller than a third preset threshold, generating a control instruction; wherein, the preset frequency band includes: a frequency band of a network system and/or a frequency band of wireless fidelity (WIFI); the frequency bands of the network standard are respectively corresponding to code division multiple access CDMA, global system for mobile communications GSM, third generation mobile communication technology 3G and long term evolution LTE;
and the reducing unit is used for reducing the transmitting power of the 5G antenna corresponding to the 5GNR frequency band to a first preset threshold value according to the control instruction, and/or reducing the transmitting power of the antenna corresponding to the preset frequency band to a second preset threshold value according to the control instruction so as to reduce the SAR of the terminal.
7. A terminal, characterized in that the terminal comprises:
a processor and a storage medium storing instructions executable by the processor to perform operations in dependence of the processor via a communication bus, the instructions, when executed by the processor, performing the method of reducing an electromagnetic absorption ratio, SAR, of any of the preceding claims 1 to 5.
8. A computer storage medium having stored thereon executable instructions that, when executed by one or more processors, perform the method of reducing an electromagnetic absorption ratio, SAR, of any one of claims 1 to 5.
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| CN111885692B (en) * | 2020-07-20 | 2023-12-12 | Tcl通讯（宁波）有限公司 | SAR value adjustment method and device and mobile terminal |
| CN114665910A (en) * | 2022-03-29 | 2022-06-24 | Oppo广东移动通信有限公司 | Signal transmitting method and device, electronic equipment and storage medium |
| CN114978225B (en) * | 2022-05-09 | 2023-12-26 | Oppo广东移动通信有限公司 | Control method, control device, control terminal, control program, storage medium, and computer program product |
| CN115208426B (en) * | 2022-07-13 | 2023-10-13 | Oppo广东移动通信有限公司 | Method and device for controlling working mode, electronic equipment and readable storage medium |
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| CN106452490A (en) * | 2016-10-11 | 2017-02-22 | 深圳市万普拉斯科技有限公司 | Method and apparatus for adjusting radiation |
| CN107645596A (en) * | 2017-09-18 | 2018-01-30 | 青岛海信移动通信技术股份有限公司 | A kind of method, device and mobile terminal for reducing mobile terminal SAR value |
| CN109041197B (en) * | 2018-06-28 | 2021-06-25 | 努比亚技术有限公司 | Communication method of terminal, terminal and computer readable storage medium |
| CN109391904B (en) * | 2018-10-11 | 2021-06-22 | 深圳市万普拉斯科技有限公司 | SAR (synthetic aperture radar) adjusting method and device, mobile terminal and readable storage medium |
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