CN107645596A - A kind of method, device and mobile terminal for reducing mobile terminal SAR value - Google Patents
A kind of method, device and mobile terminal for reducing mobile terminal SAR value Download PDFInfo
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- CN107645596A CN107645596A CN201710840604.0A CN201710840604A CN107645596A CN 107645596 A CN107645596 A CN 107645596A CN 201710840604 A CN201710840604 A CN 201710840604A CN 107645596 A CN107645596 A CN 107645596A
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Abstract
It is of the invention to disclose a kind of method, device and mobile terminal for reducing mobile terminal SAR value in fact, ASDIV antenna intelligence handoff techniques are used according to current mobile terminal more, the characteristics of multiple antennas are generally set inside it, when detecting that mobile terminal is in communications status and close user, the then testing result of the SAR value corresponding to maximum radio frequency power under work at present frequency range of the antenna in terminal, from SAR value corresponding to maximum radio frequency power not less than primary antenna of the antenna in the antenna of default SAR threshold values as the terminal.The maximum radio frequency power of terminal antenna need not be so reduced, that is, on the premise of ensureing antenna optimal communication quality, just may insure that the SAR value of terminal is not exceeded.Therefore, method provided in an embodiment of the present invention can farthest ensure wireless index performance during communication of mobile terminal while terminal-pair human body radiation SAR value is reduced.
Description
Technical field
The present invention relates to mobile communication technology field, more particularly to a kind of method, apparatus for reducing mobile terminal SAR value and
Mobile terminal.
Background technology
With the development of mobile communication technology, use of the people to mobile terminal particularly mobile phone is more and more.But this
A little mobile terminals can produce electromagnetic radiation in communication process, and if distance of mobile terminal human body is relatively near, its electromagnetic radiation
When power is again larger, just people is known from experience and causes a certain degree of radiation.
To assess influence degree of the mobile terminal electromagnetic radiation to human body, industry introduces SAR (Specific
Absorption Rate, specific absorption rate) this index, wherein, radiation of the bigger explanation of SAR value to human body is more serious.To prevent
Mobile terminal SAR value excessive problem to the exceeded influence of electromagnetic radiation that user brings, at present generally before mobile terminal dispatches from the factory,
Its transmission power (or conducted power) is limited during mobile terminal use.Specifically, before mobile terminal dispatches from the factory,
The maximum transmission power of terminal is set according to corresponding SAR standards, so that its corresponding SAR value under the maximum transmission power
No more than SAR standard values.During mobile terminal use, then by detecting whether mobile terminal is in voice status, such as
Fruit is in voice status, then detects whether mobile terminal has close user.If close to user, then reducing penetrating for terminal
Frequency conducted power (or the transmission power of terminal can also be reduced), wherein, maximum radio frequency conducted power value now is than normal
Maximum radio frequency conducted power be worth low about 2~4dBm, and the low power state is maintained, to ensure that SAR value is not exceeded.
The above-mentioned control mode for directly reducing mobile terminal emitting power, although having certain effect to reducing SAR value,
The transmission power of terminal is reduced, also just reduces the wireless radiation performance of mobile terminal, corresponding terminal communication quality also can
Decline.
The content of the invention
The invention provides a kind of method, device and mobile terminal for reducing mobile terminal SAR value, at utmost to protect
During card communication of mobile terminal in the case of wireless index performance, radiation of the SAR value reduction to human body is reduced.
First aspect according to embodiments of the present invention, there is provided a kind of method for reducing mobile terminal SAR value, applied to tool
There is the mobile terminal of multiple antennas, this method includes：
According to the communications status of the mobile terminal and the relative position of the mobile terminal and user, judge that it is
The no condition for meeting adjustment SAR value；
If meeting the condition of adjustment SAR value, judge under work at present frequency range, the current main day of the mobile terminal
Whether line exceedes default SAR threshold values in SAR value corresponding to maximum radio frequency power；
If it exceeds default SAR threshold values, then judge under work at present frequency range, be in the remaining antenna of mobile terminal
It is no antenna of the SAR value corresponding to maximum radio frequency power not less than default SAR threshold values to be present；
If there is the antenna not less than default SAR threshold values, then by one in the antenna not less than default SAR threshold values
Primary antenna of the individual antenna as the mobile terminal.
Second aspect according to embodiments of the present invention, additionally provide another method for reducing mobile terminal SAR value, application
In the mobile terminal with multiple antennas, this method includes：
According to the communications status of the mobile terminal and the relative position of the mobile terminal and user, judge that it is
The no condition for meeting adjustment SAR value；
If meeting the condition of adjustment SAR value, judge under work at present frequency range, the antenna in the mobile terminal is
It is no antenna of the SAR value corresponding to maximum radio frequency power not less than default SAR threshold values to be present；
If there is the antenna not less than default SAR threshold values, then by one in the antenna not less than default SAR threshold values
Primary antenna of the individual antenna as the mobile terminal.
The third aspect according to embodiments of the present invention, there is provided a kind of device for reducing mobile terminal SAR value, the device bag
Processor, memory and communication interface are included, the processor, the memory and the communication interface pass through communication bus phase
Even；
The communication interface, for the relative of the communications status of the mobile terminal and the mobile terminal and user
Position；
The memory, for store program codes；
The processor, for reading the program code stored in the memory, and perform such as the embodiment of the present invention the
Method described in one side.
Fourth aspect according to embodiments of the present invention, additionally provide another device for reducing mobile terminal SAR value, the bag
Processor, memory and communication interface are included, the processor, the memory and the communication interface pass through communication bus phase
Even；
The communication interface, for the relative of the communications status of the mobile terminal and the mobile terminal and user
Position；
The memory, for store program codes；
The processor, for reading the program code stored in the memory, and perform such as the embodiment of the present invention the
Method described in two aspects.
5th aspect according to embodiments of the present invention, additionally provides a kind of mobile terminal, including the embodiment of the present invention the 3rd
The device of reduction mobile terminal SAR value described in aspect or fourth aspect, in addition to antenna system, wherein：
The device for reducing mobile terminal SAR value electrically connects with the antenna system, and the antenna system includes multiple
Antenna.
From above technical scheme, a kind of method, apparatus for reducing mobile terminal SAR value provided in an embodiment of the present invention
And mobile terminal, ASDIV antenna intelligence handoff techniques are used according to current mobile terminal more, multiple days are generally set inside it
The characteristics of line, when detecting that mobile terminal is in communications status and close user, then the antenna in terminal is current
The testing result of SAR value corresponding to maximum radio frequency power under working frequency range, is not surpassed from SAR values corresponding to maximum radio frequency power
Primary antenna of the antenna crossed in the antenna of default SAR threshold values as the terminal.The maximum of terminal antenna need not so be reduced
Radio-frequency power, that is, ensure that antenna on the premise of optimal communication quality, just may insure that the SAR value of terminal is not exceeded.Therefore,
Method provided in an embodiment of the present invention can farthest ensure movement while terminal-pair human body radiation SAR value is reduced
Wireless index performance in terminal communication process.
Brief description of the drawings
In order to illustrate more clearly of technical scheme, letter will be made to the required accompanying drawing used in embodiment below
Singly introduce, it should be apparent that, for those of ordinary skills, without having to pay creative labor,
Other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of schematic flow sheet of method for reducing mobile terminal SAR value provided in an embodiment of the present invention；
Fig. 2 is the schematic flow sheet of another method for reducing mobile terminal SAR value provided in an embodiment of the present invention；
Fig. 3 is the hardware architecture diagram of antenna system in a kind of mobile terminal provided in an embodiment of the present invention；
Fig. 4 is the hardware architecture diagram of antenna system in another mobile terminal provided in an embodiment of the present invention；
Fig. 5 is the schematic flow sheet of the method for another reduction mobile terminal SAR value provided in an embodiment of the present invention；
Fig. 6 is a kind of structural representation of device for reducing mobile terminal SAR value provided in an embodiment of the present invention.
Embodiment
Here exemplary embodiment will be illustrated in detail, its example is illustrated in the accompanying drawings.Following description is related to
During accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawings represent same or analogous key element.Following exemplary is implemented
Embodiment described in example does not represent all embodiments consistent with the present invention.On the contrary, they are only and such as institute
The example of the consistent apparatus and method of some aspects being described in detail in attached claims, of the invention.
For during communication of mobile terminal, particularly mobile terminal is in high-power transmitting and close user, very
Easily cause that SAR value is exceeded, bring the radiation problem to human body.The present invention proposes one kind and reduced in terminal communication process
The method of SAR value, in the case where at utmost ensureing the wireless index performance of mobile terminal, by main in mobile terminal
The selection and power setting of antenna, to reduce radiation of the SAR value reduction to human body., below will be to this based on above-mentioned general principle
The method and device that inventive embodiments provide describes in detail.
Fig. 1 is a kind of schematic flow sheet of method for reducing mobile terminal SAR value provided in an embodiment of the present invention.Such as Fig. 1
Shown, this method specifically comprises the following steps：
Step S110：According to the communications status of the mobile terminal and the relative position of the mobile terminal and user,
Judge its condition for whether meeting to adjust SAR value.
Specifically, the communications status of mobile terminal can include two kinds of communication patterns of voice communication and data transfer, especially
When being that terminal is in voice communication state, terminal is generally placed in one's ear by user, causes terminal nearer apart from user's head, is held
Easily cause the problem of SAR value is exceeded.Therefore, the communications status of mobile terminal can be defined to voice in the embodiment of the present invention
Talking state, that is, detect whether mobile terminal is in voice communication state.It is corresponding, can be by detecting in mobile terminal
The working condition of the part such as antenna system and microphone, judge to carry out the detection of voice communication state.
Further, it is to influence the important parameter of SAR value change according to the distance between terminal and user, therefore, upper
After stating the communications status for confirming terminal, the location status between further detection terminal and user, when distance between the two is small
When given threshold, then it is assumed that terminal there may be the influence of the radiation to human body.It is corresponding, between mobile terminal and user
Relative position detection can be realized using the sensor in terminal.
In addition, according to user using terminal carry out voice call when, terminal generally apart from user's head it is nearer the characteristics of,
And relative to trunk and four limbs, the head tissue of people is more sensitive, subject to damage, therefore, the embodiment of the present invention is confirming to move
When dynamic terminal is in close to the position of user, the relative position detection between mobile terminal and user can be also further detected, that is, is examined
The concrete position of the close user of terminal institute is surveyed, such as head, trunk or four limbs；Then, the close account of terminal is being detected
During portion, then carry out follow-up SAR value detection.It is, of course, also possible to for the different positions detected, judge whether it meets
The condition of the adjustment SAR value of corresponding position.
To sum up analyze, can be in mobile terminal between voice communication state and the mobile terminal and user's head
Distance when being less than preset value (such as 10cm), then it is assumed that it meets the condition of adjustment HEAD SAR values.It is, of course, also possible to moving
Dynamic terminal is in voice communication state and the distance between the mobile terminal and user's trunk are less than preset value (such as 10cm)
When, then it is assumed that it meets the condition of adjustment BODY SAR values；Or can mobile terminal be in data transmission state and
When the distance between the mobile terminal and user's head are less than preset value, then it is assumed that it meets the condition of adjustment HEAD SAR values
Deng.Corresponding SAR value detection is carried out to different use conditions, this is no longer going to repeat them for the present embodiment.
Step S120：If meeting the condition of adjustment SAR value, judge under work at present frequency range, the mobile terminal
Current primary antenna whether exceed default SAR threshold values in SAR value corresponding to maximum radio frequency power.
Specifically, because mobile phone transmission power directly affects its electromagnetic radiation, and transmission power is bigger, sends
Energy is also bigger, and corresponding electromagnetic radiation value is also bigger, and therefore, if meeting the condition of adjustment SAR value, detection moves
The current working frequency range of dynamic terminal, and detect whether current primary antenna exceedes in advance in SAR value corresponding to maximum radio frequency power
If SAR threshold values.If under work at present frequency range, current primary antenna when being in maximum transmission power corresponding SAR values be less than or
Equal to the SAR threshold values of setting, then do not do the switching between antenna, i.e., will currently primary antenna as primary antenna；If on the contrary,
More than the SAR threshold values of setting, then step S130 is performed.
Further, in order to quickly determine current primary antenna in SAR value corresponding to maximum radio frequency power, the present embodiment provides
By way of determining the current primary antenna in SAR value corresponding to maximum radio frequency power inquiring about default SAR value test table.Its
In, the method for building up of SAR value test table is as follows：
First, primary antenna (can realize that radiofrequency signal sends and receives) can be used as to each in mobile terminal
Antenna each working frequency range carry out SAR value test.The first step, each working frequency range of each antenna is sent out in maximum
Penetrate under power (this maximum transmission power can be set according to respective standard), test SAR value, and record test result one by one.The
Two steps, the working frequency range of given threshold is more than for SAR value test result, gradually reduces maximum transmission power and testing SA R
Value, when the SAR value measured meets given threshold, record the transmission power of now terminal.Each antenna is so obtained one by one to exist
The SAR value test list of all working frequency range.The list can include n and arrange, and first row corresponds to working frequency range；Secondary series pair
The SAR value that should be measured when maximum transmission power；3rd row and (number specifically arranged is according to the number of given threshold with rank rear
To determine) correspond to the frequency range that maximum transmission power SAR value test result is more than given threshold, and made by power adjustment
When SAR value meets given threshold, (in the present embodiment, our transmission powers are referred to as SAR radio frequency work(to corresponding transmission power
Rate).
Then, the SAR value test list of all antennas is saved in the memory of mobile terminal one by one, can thus obtained
List is tested to SAR value corresponding to each antenna.
Wherein, the above-mentioned setting for SAR threshold values, the present embodiment is according to various criterion requirement of the different regions to SAR value
To set, multiple threshold values, the different threshold values of the corresponding setting in different areas so just be present, such as there are CE (European
Conformity, European Union) standard, FCC (Federal Communications Commission, Federal Communication committee member
Meeting) standard, domestic standard etc., and then SAR value test list corresponds to different threshold values (corresponding not respectively since arranging the 3rd
Same area), in the case where maximum transmission power SAR value test result is more than the working frequency range of the threshold value, SAR values meet the threshold value
When transmission power.As shown in following table one, the SAR value test table for the antenna as built up.
Table one：
Based on the above-mentioned standard requirement for there are different SAR threshold values for different regions, therefore, in this step determine default
, be according to the current affiliated area of the mobile terminal, it is determined that default SAR thresholds corresponding with its current affiliated area during SAR threshold values
Value.It is corresponding, when needing to inquire about and call above-mentioned SAR value test list, it is first determined the region residing for mobile terminal, so
Threshold value corresponding to this area is determined afterwards, is inquired about and is called again corresponding test result after threshold value determination, so just meet not
With various criterion requirement of the area to SAR value.
In addition, communications status and its relative position with user for different mobile terminals, corresponding default
SAR threshold values can also be different, if for example, mobile terminal is in voice communication state and its head with close user
When, then the default SAR threshold values are HEAD SAR threshold values；If mobile terminal is in voice communication state and it is used with close
During the body at family, then the default SAR threshold values are BODY SAR threshold values.
It should be noted that except the SAR value tested in advance by inquiring about provided using the present embodiment tests table
Mode can also be used and calculated in real time or using in terminal to confirm primary antenna radiation whether outside the mode more than SAR threshold values
The detection means radiation value of current primary antenna that directly mode such as detection determines, this is no longer going to repeat them for the present embodiment.This
Examination criteria of the embodiment using the transmission power of terminal antenna as radio-frequency power, can also be with the biography of antenna in concrete application
Lead examination criteria of the power (power between plate electrode) as radio-frequency power.
Step S130：If it exceeds default SAR threshold values, then judge under work at present frequency range, the mobile terminal is remaining
Antenna in the presence or absence of SAR value corresponding to maximum radio frequency power not less than default SAR threshold values antenna.
If under work at present frequency range, SAR value test result of the current primary antenna in maximum transmission power, which is more than, to be set
When determining threshold value, then inquire about in the SAR value test table of other antennas, under the working frequency range, during in maximum transmission power
SAR value test result, and carry out threshold value comparison.
Step S140：If there is the antenna not less than default SAR threshold values, then by described not less than default SAR threshold values
Primary antenna of the antenna as the mobile terminal in antenna.
If there is the antenna not less than default SAR threshold values, then by can be never greater than being selected in the antenna of default SAR threshold values
Primary antenna of any one antenna as the mobile terminal is selected, so can be to meet the not exceeded requirement of SAR value
Further, can also be by each antenna in maximum radio frequency power in order to reduce as far as possible to human body radiation
Corresponding SAR value compares, and SAR value corresponding to maximum radio frequency power in the antenna not less than default SAR threshold values is minimum
Antenna, the primary antenna as the mobile terminal.
Or if more focus on terminal communication quality, can also by each antenna the working frequency range reception
Signal quality compares, by the antenna that received signal quality in the antenna not less than default SAR threshold values is optimal, as the shifting
The primary antenna of dynamic terminal.
The method provided in an embodiment of the present invention for reducing mobile terminal SAR value, generally set according to current terminal inner more
Individual antenna and different antennas cause the different spy of its SAR value the location circumstances of terminal, maximum gain direction etc. are different
Point, when detecting that mobile terminal is in communications status and close user, then the antenna in terminal is in work at present frequency
The testing result of the lower SAR value corresponding to maximum radio frequency power of section, from a day in the antenna not less than default SAR threshold values
Primary antenna of the line as the terminal.So, without reducing the maximum radio frequency power of terminal antenna, that is, antenna optimal communication is ensured
On the premise of quality, it just may insure that the SAR value of terminal is not exceeded.Therefore, reduction mobile terminal provided in an embodiment of the present invention
The method of SAR value, compared with directly reducing the mode of terminal maximum transmission power, terminal-pair human body radiation SAR can reduced
While value, farthest ensure wireless index performance during communication of mobile terminal.
Further, the other antenna similar frequency bands emission maximum work(being likely that there are during terminal use in terminal
SAR value during rate is also both greater than the situation of given threshold, and for the problem, the embodiment of the present invention additionally provides following solution step
Suddenly.
Step S150：, then will be under work at present frequency range, by SAR if there is no the antenna not less than default SAR threshold values
Value corresponds to primary antenna of the maximum antenna of SAR radio-frequency powers as the mobile terminal when meeting default SAR threshold values, and, will
The SAR radio-frequency powers of the primary antenna of the mobile terminal are set as its maximum radio frequency power.
If there is no the antenna not less than default SAR threshold values, the SAR value test table of all antennas is inquired about, in the work
SAR radio-frequency powers are corresponded to when SAR value meets default SAR threshold values under making to be compared, and the primary antenna of present communications is switched
Gone on the antenna maximum to the transmission power compared, meanwhile, the emission maximum work(using this SAR transmission power as this frequency range
Rate is limited.So, on the premise of the SAR value for ensureing terminal is not exceeded, the communication matter of antenna can be ensured as far as possible
Amount.
Fig. 2 is the schematic flow sheet of another method for reducing mobile terminal SAR value provided in an embodiment of the present invention.It is based on
Above-mentioned mobile terminal includes multiple antennas, to make full use of the antenna in addition to primary antenna, to improve the reliable of signal transmission
Property.As shown in Fig. 2 after step S240 and step S250 carries out antenna switching, can also comprise the following steps：
Step S260：Detect whether the mobile terminal supports diversity reception mode of operation in work at present frequency range.
If supporting diversity reception mode of operation, step S270 is performed；On the contrary, if diversity reception Working mould is not supported
Formula, then perform step S280.
Step S270：If diversity reception mode of operation is supported, by the portion in the mobile terminal in addition to primary antenna
Divide or whole antennas are as diversity antenna.
Fig. 3 is the hardware architecture diagram of antenna system in a kind of mobile terminal provided in an embodiment of the present invention.Such as Fig. 3 institutes
Show, the antenna Ant1 and antenna Ant2 in the antenna system can be used as primary antenna and diversity antenna, and both are real by switching
Now mutually switching.
, can be with will be mobile if the working frequency range supports diversity reception mode of operation corresponding to the antenna system in Fig. 3
Some antennas in terminal in addition to primary antenna is as diversity antenna, i.e., corresponding just if antenna Ant1 is current primary antenna
Antenna Ant2 uses as the diversity antenna for reception signal.Certainly, the present embodiment is by taking two antennas as an example, specifically
Multiple antennas can also be included in.
Fig. 4 is the hardware architecture diagram of antenna system in another mobile terminal provided in an embodiment of the present invention.Such as Fig. 3
Shown, antenna Ant1 and antenna Ant2 in the antenna system can be used as primary antenna, and both are mutually cut by switching realization
Change and realize data communication, voice communication service, and antenna Ant3 is fixed as diversity antenna, is not involved in switching.
It is current speech after the switching of primary antenna is completed, such as using antenna Ant1 corresponding to the antenna system in Fig. 4
The primary antenna of communication, can using by antenna Ant2 as emergency antenna or data communication service antenna, while antenna
Ant3 uses as the diversity antenna for reception signal.
Step S280：If not supporting diversity reception mode of operation, by the mobile terminal in addition to primary antenna
Part or all of antenna is as emergency antenna.
Further, multiple antennas are included based on above-mentioned mobile terminal, to improve the reliability of signal transmission.For this reality
Apply in the step S210 in example one according to the relative of the communications status of the mobile terminal and the mobile terminal and user
Position, judge its whether meet adjust SAR value condition after, also comprise the following steps：
Step S290：, will be under work at present frequency range if being unsatisfactory for adjusting the condition of SAR value, the mobile terminal
The optimal antenna of middle signal receiving quality is as the mobile terminal primary antenna.
I.e. during terminal use, if step S210 communications status and the position between user can not be met simultaneously
Specific requirement corresponding to two constraintss of configuration state, then according to normal ASDIV setting mechanism, i.e., according to each antenna institute
Primary antenna in the comparative result selection terminal of received signal quality, and, it regard remaining antenna as diversity antenna and/or standby
Select antenna.
Fig. 5 is the schematic flow sheet of the method for another reduction mobile terminal SAR value provided in an embodiment of the present invention.Such as figure
Shown in 5, this method specifically comprises the following steps：
Step S310：According to the communications status of the mobile terminal and the relative position of the mobile terminal and user,
Judge its condition for whether meeting to adjust SAR value.
Step S320：If meeting the condition of adjustment SAR value, judge under work at present frequency range, the mobile terminal
In antenna with the presence or absence of SAR value corresponding to maximum radio frequency power not less than default SAR threshold values antenna.
Specifically, the mode in embodiment one can be utilized to inquire about the SAR value test table of each antenna in terminal, each day is obtained
Line is under the working frequency range, SAR value test result during in maximum transmission power, and carries out threshold value comparison, obtains maximum
Antenna of the SAR value corresponding to radio-frequency power not less than default SAR threshold values.
Step S330：If there is the antenna not less than default SAR threshold values, then by described not less than default SAR threshold values
Primary antenna of the antenna as the mobile terminal in antenna.
Specifically, can be by the day minimum not less than SAR value corresponding to maximum radio frequency power in the antenna of default SAR threshold values
Line, the primary antenna as the mobile terminal；Or, by the day optimal not less than signal receiving quality in the antenna of default SAR threshold values
Line, the primary antenna as the mobile terminal.
Step S340：, then will be under work at present frequency range, by SAR if there is no the antenna not less than default SAR threshold values
Value corresponds to primary antenna of the maximum antenna of SAR radio-frequency powers as the mobile terminal when meeting default SAR threshold values, and, will
The SAR radio-frequency powers of the primary antenna of the mobile terminal are set as its maximum radio frequency power.
The present embodiment and the main distinction of embodiment one are, when meeting the condition of adjustment SAR value, according to maximum in terminal
SAR value corresponding to radio-frequency power selects it not less than the performance (such as SAR value, communication quality) of the antenna of default SAR threshold values
In an antenna as primary antenna, even if the current primary antenna that is, in terminal does not surpass in SAR value corresponding to maximum radio frequency power
Cross default SAR threshold values, it is also possible to be switched, with utmost ensure wireless index performance during communication of mobile terminal, with
And reduce SAR value.
Corresponding to the method for above-mentioned reduction mobile terminal SAR value, it is mobile eventually that the embodiment of the present invention additionally provides a kind of reduction
Hold the device of SAR value.Fig. 6 is a kind of structural representation of device for reducing mobile terminal SAR value provided in an embodiment of the present invention
Figure, as shown in fig. 6, the device 600, its structure may include：At least one processor (processor) 601, internal memory
(memory) 602, peripheral interface (peripheralinterface) 603, input/output subsystem (I/
Osubsystem) 604, power circuit 605 and communication line 606.
In figure 6, arrow represents to carry out the communication and data transmission between the inscape of computer system, and it can profit
With high-speed serial bus (high-speed serial bus), parallel bus (parallelbus), storage area network (SAN,
Storage Area Network) and/or other appropriate communication technologys and realize.
Internal memory 602 may include operating system 612 and reduce the method routine 622 of mobile terminal SAR value.For example, internal memory
602 may include that high-speed random access memory (high-speed random access memory), disk, static random are deposited
Access to memory (SPAM), dynamic random access memory (DRAM), read-only storage (ROM), flash memory or non-voltile memory.
Internal memory 602 can store for operating system 612 and reduce the program coding 622 of mobile terminal SAR value, that is to say, that may include
Software module, instruction set architecture needed for the action of device 600 or a variety of data outside it.Now, processor 601 or outer
The access of other controllers of the grade of peripheral equipment interface 606 and internal memory 602 can be controlled by processor 601.
Peripheral interface 603 can be by the input of device 600 and/or output ancillary equipment and processor 601 and internal memory 602
It is combined.Also, input/output subsystem 604 can be by a variety of input/output ancillary equipment and the phase knot of peripheral interface 606
Close.For example, input/output subsystem 604 may include display, printer or be used for camera, various sensings as needed
The controller that the ancillary equipment such as device are combined with peripheral interface 603.According to another side, input/output periphery may not be used yet
It is combined by input/output subsystem 604 with peripheral interface 603.
Power circuit 605 can be to all or part of supply electric power of the circuit element of mobile terminal.For example, power circuit
605 may include such as more than one power supply, charging system, the power failure monitor of electric power management system, battery or exchange (AC)
Circuit (power failuredetection circuit), power converter or inverter, power state marker character are used for
Electric power generation, management, other any circuit elements of distribution.
Communication line 606 can be communicated using at least one interface with other computer systems, such as be moved with others
Terminal is communicated.
Processor 601 can perform Charge Management by implementing the software module being stored in internal memory 602 or instruction set architecture
The multiple functions and processing data of device 600.That is, processor 601 is by performing basic arithmetic, logic and meter
The input/output calculation of calculation machine system, may be configured as handling the order of computer program.
Fig. 6 embodiment is only an example of the device 600 for reducing mobile terminal SAR value, and device can have following knot
Structure or configuration：May include in communication line 606 be used for communication (WiFi, 6G, LTE, Bluetooth, NFC,
Zigbee etc.) RF communication circuit.The circuit element that can be included in device 600 can be by including more than one signal
The combination of both reason or application program hardware, software or the hardware and software of integrated circuit becomed privileged and realize.
The device 600 of above-mentioned composition, for the communications status according to the mobile terminal and the mobile terminal with using
The relative position at family, judge its condition for whether meeting to adjust SAR value；If meeting the condition of adjustment SAR value, judge
Under work at present frequency range, the current primary antenna of the mobile terminal is preset whether SAR value corresponding to maximum radio frequency power exceedes
SAR threshold values；If it exceeds default SAR threshold values, then judge under work at present frequency range, in the remaining antenna of mobile terminal
With the presence or absence of antenna of the SAR value corresponding to maximum radio frequency power not less than default SAR threshold values；If there is not less than default SAR
The antenna of threshold value, the then main day using an antenna in the antenna not less than default SAR threshold values as the mobile terminal
Line.Or communications status and the relative position of the mobile terminal and user according to the mobile terminal, judge that it is
The no condition for meeting adjustment SAR value；If meeting the condition of adjustment SAR value, judge under work at present frequency range, the shifting
Antenna in dynamic terminal is with the presence or absence of antenna of the SAR value corresponding to maximum radio frequency power not less than default SAR threshold values；If deposit
In the antenna not less than default SAR threshold values, then using an antenna in the antenna not less than default SAR threshold values as institute
State the primary antenna of mobile terminal.
Based on the device that mobile terminal SAR value is reduced shown in Fig. 6, the embodiment of the present invention additionally provides a kind of mobile terminal,
The terminal includes the device of the reduction mobile terminal SAR value shown in Fig. 6, in addition to the dress with the reduction mobile terminal SAR value
The antenna system of connection is put, wherein, the antenna system includes multiple antennas.Meanwhile the movement provided in an embodiment of the present invention is whole
End can perform above-described embodiment one to the method for the reduction mobile terminal SAR value of embodiment three.In addition, in the present embodiment
Mobile terminal can include mobile phone, intelligent watch, tablet personal computer etc..
For convenience of description, it is divided into various units during description apparatus above with function to describe respectively.Certainly, this is being implemented
The function of each unit can be realized in same or multiple softwares and/or hardware during invention.
Each embodiment in this specification is described by the way of progressive, identical similar portion between each embodiment
Divide mutually referring to what each embodiment stressed is the difference with other embodiment.Especially for device
Or for system embodiment, because it is substantially similar to embodiment of the method, so describe fairly simple, related part referring to
The part explanation of embodiment of the method.Apparatus and system embodiment described above is only schematical, wherein conduct
The unit that separating component illustrates can be or may not be physically separate, can be as the part that unit is shown
Or it may not be physical location, you can with positioned at a place, or can also be distributed on multiple NEs.Can
To select some or all of module therein to realize the purpose of this embodiment scheme according to the actual needs.This area is general
Logical technical staff is without creative efforts, you can to understand and implement.
It the above is only the embodiment of the present invention, it is noted that come for those skilled in the art
Say, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications should also regard
For protection scope of the present invention.
Claims (10)
- A kind of 1. method for reducing mobile terminal SAR value, it is characterised in that applied to the mobile terminal with multiple antennas, institute The method of stating includes：According to the communications status of the mobile terminal and the relative position of the mobile terminal and user, judge whether it is full The condition of foot adjustment SAR value；If meeting the condition of adjustment SAR value, judge under work at present frequency range, the current primary antenna of the mobile terminal exists Whether SAR value corresponding to maximum radio frequency power exceedes default SAR threshold values；If it exceeds whether default SAR threshold values, then judge under work at present frequency range deposited in the remaining antenna of mobile terminal In antenna of the SAR value corresponding to maximum radio frequency power not less than default SAR threshold values；If there is the antenna not less than default SAR threshold values, then by a day in the antenna not less than default SAR threshold values Primary antenna of the line as the mobile terminal.
- 2. according to the method for claim 1, it is characterised in that by one in the antenna not less than default SAR threshold values Primary antenna of the individual antenna as the mobile terminal, including：By the antenna that SAR value corresponding to maximum radio frequency power in the antenna not less than default SAR threshold values is minimum, as described The primary antenna of mobile terminal.
- 3. method according to claim 1 or 2, it is characterised in that methods described also includes：If there is no the antenna not less than default SAR threshold values, then SAR value will be met into default SAR under work at present frequency range Primary antenna of the maximum antenna of SAR radio-frequency powers as the mobile terminal is corresponded to during threshold value, and, by the mobile terminal The SAR radio-frequency powers of primary antenna are set as its maximum radio frequency power.
- 4. according to the method for claim 1, it is characterised in that methods described also includes：Detect whether the mobile terminal supports diversity reception mode of operation in work at present frequency range；If supporting diversity reception mode of operation, the part or all of antenna in the mobile terminal in addition to primary antenna is made For diversity antenna.
- 5. according to the method for claim 1, it is characterised in that the establishing method of the default SAR threshold values includes：According to the current affiliated area of the mobile terminal, it is determined that default SAR threshold values corresponding with its current affiliated area.
- A kind of 6. method for reducing mobile terminal SAR value, it is characterised in that applied to the mobile terminal with multiple antennas, institute The method of stating includes：According to the communications status of the mobile terminal and the relative position of the mobile terminal and user, judge whether it is full The condition of foot adjustment SAR value；If meeting the condition of adjustment SAR value, judge under work at present frequency range, whether the antenna in the mobile terminal is deposited In antenna of the SAR value corresponding to maximum radio frequency power not less than default SAR threshold values；If there is the antenna not less than default SAR threshold values, then by a day in the antenna not less than default SAR threshold values Primary antenna of the line as the mobile terminal.
- 7. according to the method for claim 6, it is characterised in that by one in the antenna not less than default SAR threshold values Primary antenna of the individual antenna as the mobile terminal, including：By the antenna that SAR value corresponding to maximum radio frequency power in the antenna not less than default SAR threshold values is minimum, as described The primary antenna of mobile terminal；Or,By the antenna that signal receiving quality in the antenna not less than default SAR threshold values is optimal, as the mobile terminal Primary antenna.
- 8. a kind of device for reducing mobile terminal SAR value, it is characterised in that described including processor, memory and communication interface Processor, the memory are connected with the communication interface by communication bus；The communication interface, communications status and the relative position of the mobile terminal and user for the mobile terminal；The memory, for store program codes；The processor, for reading the program code stored in the memory, and perform as any in claim 1 to 5 Method described in.
- 9. a kind of device for reducing mobile terminal SAR value, it is characterised in that described including processor, memory and communication interface Processor, the memory are connected with the communication interface by communication bus；The communication interface, communications status and the relative position of the mobile terminal and user for the mobile terminal；The memory, for store program codes；The processor, for reading the program code stored in the memory, and perform as any in claim 6 to 7 Method described in.
- A kind of 10. mobile terminal, it is characterised in that include the device of the reduction mobile terminal SAR value described in claim 8 or 9, Also include antenna system, wherein：The device for reducing mobile terminal SAR value electrically connects with the antenna system, and the antenna system includes multiple antennas.
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| CN201710840604.0A CN107645596A (en) | 2017-09-18 | 2017-09-18 | A kind of method, device and mobile terminal for reducing mobile terminal SAR value |
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| CN201710840604.0A CN107645596A (en) | 2017-09-18 | 2017-09-18 | A kind of method, device and mobile terminal for reducing mobile terminal SAR value |
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