CN106211304B - A kind of method and terminal for reducing the electromagnetic wave absorptivity under LTE operating modes - Google Patents
A kind of method and terminal for reducing the electromagnetic wave absorptivity under LTE operating modes Download PDFInfo
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- CN106211304B CN106211304B CN201610525805.7A CN201610525805A CN106211304B CN 106211304 B CN106211304 B CN 106211304B CN 201610525805 A CN201610525805 A CN 201610525805A CN 106211304 B CN106211304 B CN 106211304B
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- output power
- lte
- tests
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/28—TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non transmission
- H04W52/288—TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non transmission taking into account the usage mode, e.g. hands-free, data transmission, telephone
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/3827—Portable transceivers
- H04B1/3833—Hand-held transceivers
- H04B1/3838—Arrangements for reducing RF exposure to the user, e.g. by changing the shape of the transceiver while in use
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
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Abstract
The embodiment of the invention discloses it is a kind of reduce LTE operating modes under electromagnetic wave absorptivity method, the method includes：It detects that the receiver of terminal is opened, and when the terminal is in LTE operating modes, opens the proximity sensor of the terminal；Detection object whether there is in the range of pre-determined distance by proximity sensor detection；There is detection object if detecting in the range of the pre-determined distance, the peak signal output power of the terminal is then subjected to back-off, so that the corresponding electromagnetic wave absorptivity of output power signal after the back-off is less than or equal to pre-given electromagnetic wave absorptivity threshold value.The embodiment of the invention also discloses a kind of terminals.Using the present invention, by only output power signal of the back-off terminal under the speech pattern of LTE, while reducing the electromagnetic wave absorptivity of terminal-pair human body, the communication efficiency of terminal is improved.
Description
Technical field
The present invention relates to the electromagnetic wave absorptivities under field of communication technology more particularly to a kind of reduction LTE operating modes
Method and terminal.
Background technology
As terminal is more and more widely used, the considerations of public is more and more terminal-pair human body radiation.Wherein weigh
The index for being radiated the electromagnetic wave energy size of human body is electromagnetic wave absorptivity (SAR, Specific Absorption Rate).
SAR is typically used as indicating the numerical value of the harmful effect as caused by from the electromagnetic wave of terminal radiation.
The current most of technology for reducing SAR mostly using the transmission power of reduction terminal antenna, uses absorption wave material
Material, conductor reflector, coating radiation protection and absorber coatings etc., but all reduce the communication efficiency of terminal.
Invention content
Technical problem to be solved of the embodiment of the present invention is, provides a kind of electromagnetic wave reduced under LTE operating modes
The method and terminal of absorptivity by only output power signal of the back-off terminal under the speech pattern of LTE, reduce end
While holding the electromagnetic wave absorptivity to human body, the communication efficiency of terminal is improved.
In order to solve the above-mentioned technical problem, an embodiment of the present invention provides a kind of electromagnetic waves reduced under LTE operating modes
The method of absorptivity, the method includes：
Detect that the receiver of terminal is opened, and when the terminal is in LTE operating modes, open the terminal close to biography
Sensor；
Detection object whether there is in the range of pre-determined distance by proximity sensor detection；
There is detection object if detecting in the range of the pre-determined distance, by the peak signal output work of the terminal
Rate carries out back-off, so that the corresponding electromagnetic wave absorptivity of output power signal after the back-off is less than or equal to
Pre-given electromagnetic wave absorptivity threshold value.
Correspondingly, the embodiment of the present invention additionally provides a kind of terminal, and the terminal includes：
The terminal is opened and detected to detection module whether in LTE Working moulds for the receiver of detection terminal
Formula, when the receiver for detecting the terminal is opened and the terminal is in LTE operating modes, open the terminal close to biography
Sensor；
Judgment module, for passing through the proximity sensor detection in the range of pre-determined distance with the presence or absence of detection object；
Back-off module, for detect in the range of the pre-determined distance exist detection object when, by the end
The peak signal output power at end carries out back-off, so that the corresponding electromagnetic wave of output power signal after the back-off
Absorptivity is less than or equal to pre-given electromagnetic wave absorptivity threshold value.
Implement the embodiment of the present invention, have the advantages that：When detect terminal receiver open and terminal simultaneously
When being operated under LTE patterns, the proximity sensor of terminal is opened, then detects whether that someone's head rest is near by proximity sensor,
If detecting, someone's head rest is near, the peak signal output power of terminal is carried out back-off, so that the signal after rollback
Electromagnetic wave absorptivity under output power meets the requirement of the electromagnetic wave absorptivity under test pattern.Pass through only back-off terminal
Output power signal under the speech pattern of LTE, without output power signal of the rollback terminal under the data pattern of LTE,
While reducing the electromagnetic wave absorptivity of terminal-pair human body, the communication efficiency of terminal is improved.
Description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention, for those of ordinary skill in the art, without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the flow of the method for the electromagnetic wave absorptivity under a kind of reduction LTE operating modes in the embodiment of the present invention
Schematic diagram；
Fig. 2 is a kind of terminal and the interface schematic diagram of number of people position relationship in the embodiment of the present invention；
Fig. 3 is the method for the electromagnetic wave absorptivity under a kind of reduction LTE operating modes in another embodiment of the present invention
Flow diagram；
Fig. 4 is a kind of structure diagram of terminal in the embodiment of the present invention；
Fig. 5 is a kind of method for performing the electromagnetic wave absorptivity under above-mentioned reduction LTE operating modes in the embodiment of the present invention
Computer system Organization Chart.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without creative efforts
Embodiment shall fall within the protection scope of the present invention.
Term " first ", " second ", " third " in description and claims of this specification and above-mentioned attached drawing, "
Four " etc. be for distinguishing different objects rather than for describing particular order.In addition, term " comprising " and " having " and it
Any deformation, it is intended that cover non-exclusive include.Such as it contains the process of series of steps or unit, method, be
The step of system, product or equipment are not limited to list or unit, but optionally further include the step of not listing or list
Member is optionally further included for other intrinsic steps of these processes, method, product or equipment or unit.
The execution of the method for electromagnetic wave absorptivity under the reduction LTE operating modes referred in the embodiment of the present invention depends on
Computer program can run on the computer system of Feng Ruoyiman systems.The computer program can integrate in the application,
Tool-class application operation can be independent.The computer system can be PC, tablet computer, laptop, hand
The terminal devices such as machine, smart mobile phone.
It is described in detail separately below.
Fig. 1 is that a kind of flow for the method for reducing the electromagnetic wave absorptivity under LTE operating modes is shown in the embodiment of the present invention
It is intended to, the method includes at least as shown in the figure：
Step S101 detects that the receiver of terminal is opened, and when the terminal is in LTE operating modes, opens the end
The proximity sensor at end.
Specifically, when terminal receives the opening receiver Engineering Order of tester's input, the receiver of terminal is opened, with
Open the voice pathway of terminal.Then whether the terminal is detected in LTE (Long Term Evolution, long term evolution)
Under operating mode, if the terminal is under LTE operating modes, the proximity sensor of terminal is opened.Wherein, the engineering refers to
It can be that tester carries out key entry operation in key area to enable input mode, or the input phase in the touch screen of terminal
The character string answered so that the character string of input is converted to corresponding Engineering Order by terminal, is not especially limited herein.It is and described
Whether the method in LTE operating modes can be to detect whether the terminal is connected to LTE comprehensive test instruments to detection terminal.
It should be noted that the proximity sensor is to replace the contact measurements modes such as limit switch, with without contact
The general name of the sensor for the purpose of object is detected is detected, there is induction type, capacitance-type, ultrasonic type, photoelectric type and magnetic
Power type etc..It can detect the mobile message of object and existence information and corresponding information is converted to electric signal.It is converting
For in the detection mode of electric signal, including the use of the eddy current generated in the metallic object that object is detected caused by electromagnetic induction
Mode, the mode for catching the volume change close to caused electric signal for surveying body, profit stone and directing switch a variety of sides such as mode
Formula.And in the present embodiment, the proximity sensor can be close to light sensation.
Optionally, white card, LTE test cards, 4G test cards, LTE- can be inserted into the terminal before LTE comprehensive test instruments are connected
FDD cards or LTE-TDD cards etc., are specifically not construed as limiting.This kind of card can be used for signal testing, by the way that comprehensive test instrument is coordinated to realize signal
To instrument to the exclusive path of terminal, make test environment more succinct, it can be achieved that noiseless integration test to terminal.
Optionally, the present embodiment can be applied to test pattern.
Step S102 whether there is detection object by proximity sensor detection in the range of pre-determined distance.
Specifically, when detection object proximity sensor induction region, i.e., close to the pre-determined distance range when, sensor
Can contactless, no pressure, no-spark and send out electrical command rapidly, accurately reflect the position of detection object.Wherein, institute
It states pre-determined distance ranging from proximity sensor and is less than or equal to 2mm with detecting the distance of object.
In the present embodiment, it when being opened close to light sensation, can detect in distance close in the range of light sensation pre-determined distance
Whether the number of people is had.
There is detection object if detecting in the range of the pre-determined distance, by the maximum of the terminal in step S103
Output power signal carries out back-off, so that the corresponding electromagnetic wave absorptivity of output power signal after the back-off is small
In or equal to pre-given electromagnetic wave absorptivity threshold value.
Specifically, the electromagnetic wave absorptivity (SAR, Specific Absorption Rate) is when Human body package is in penetrating
Frequently under (RF) energy of electromagnetic field, the energy of the ratio of human body absorbed energy, i.e. per unit mass absorption, unit W/kg, with
Formula S AR=d (dW/dm)/dt is indicated, wherein, W be terminal output power signal, m be unit quality, a signal
Output power corresponds to a SAR.
And for the test of SAR, the most commonly used is head part S AR tests, head part S AR tests use in one's ear mainly for close
, mobile communication terminal that there is voice call function, such as mobile phone.In general, mobile phone includes " patch in the test of head model
Face " and " inclination " two kinds of positions, as shown in Figure 2.Wherein, the test of SAR when upper row is terminal architrave, below a behavior it is whole
The test of SAR when end tilts 15 °.It is tested respectively in the left side of head model and right side under both positions, so that
The SAR value tested under this 4 kinds of positions is respectively less than or equal to pre-given electromagnetic wave absorptivity threshold value.
In the present embodiment, if being detected by described close to light sensation in distance close to light sensation pre-determined distance range (2mm)
When interior someone's head rest is near, the peak signal output power (23dBm) of terminal is subjected to back-off, the signal after being retracted is defeated
Go out power.In general, the output power signal after the back-off is by the peak signal output power (23dBm) of the terminal
Reduce 1~6dBm.And according to formula S AR=d (dW/dm)/dt, calculate corresponding SAR under the output power signal after rollback
Whether default Head SAR threshold value is less than or equal to.If so, using the output power signal after retracting as terminal in LTE
Otherwise output power value under the voice communication of operating mode, continues to adjust in the range of 1~6dBm is reduced so that final
Output power signal be less than or equal to default Head SAR threshold values.Wherein, the default Head SAR threshold values are marked in the U.S.
Lower standard is 1.6W/kg (1 gram), is 2.0W/kg (10 grams) under China and European standard.
Optionally, if being not detected by proximity sensor, the number of people is close, keeps the peak signal output power of terminal
It is constant, so that the signal transmission quality under non-voice mode is unaffected.
In embodiments of the present invention, when the receiver for detecting terminal is opened and terminal is worked at the same time under LTE patterns,
The proximity sensor of terminal is opened, then detects whether that someone's head rest is near by proximity sensor, if detecting, someone's head rest is near,
The peak signal output power of terminal is then subjected to back-off, so that the electromagnetic wave under the output power signal after rollback is inhaled
Yield meets the requirement of the electromagnetic wave absorptivity under test pattern.By only back-off terminal under the speech pattern of LTE
Output power signal without output power signal of the rollback terminal under the data pattern of LTE, reduces the electricity of terminal-pair human body
While electro-magnetic wave absorption rate, the communication efficiency of terminal is improved.
Fig. 3 is a kind of stream for the method for reducing the electromagnetic wave absorptivity under LTE operating modes in another embodiment of the present invention
Journey schematic diagram, as shown in the figure the method include at least：
Step S201 opens according to the receiver of the talk application program of the terminal received and asks, opens the end
The receiver at end.
Specifically, terminal is opened when the receiver for receiving the talk application program in the terminal opens request
The receiver of the terminal is opened, to open the voice pathway of terminal.The talk application program can be the speech business based on IMS
(VOLTE, Voice over LTE), the networking telephone (VoIP, Voice over Internet Protocol), wechat phone,
QQ voice calls, incoming call, credulity etc..
Step S202 detects that the receiver of terminal is opened, and when the terminal is in LTE operating modes, opens the end
The proximity sensor at end.
Specifically, the receiver to terminal is detected, judge whether the receiver is opened, if detecting opening, and described
Terminal is in LTE network connection status, then opens the proximity sensor of terminal.It should be noted that the proximity sensor
It is to replace the contact measurements modes such as limit switch, by without contacting the total of the sensor for the purpose of detection object is detected
Claim, there is induction type, capacitance-type, ultrasonic type, photoelectric type and magnet type etc..It can detect the mobile message of object and deposit
Electric signal is converted in information and by corresponding information.In the detection mode for being converted to electric signal, including the use of electromagnetism
The mode of eddy current generated in the metallic object of object is detected caused by sensing, catches the appearance close to caused electric signal for surveying body
Measure the various ways such as the mode of the mode changed, sharp stone and directing switch.And in the present embodiment, the proximity sensor can be with
For close to light sensation.
Optionally, the present embodiment can be applied to real net pattern.
Step S203 whether there is detection object by proximity sensor detection in the range of pre-determined distance.
Specifically, when the induction region of detection object proximity sensor, i.e., when in the range of described pre-determined distance, sensor is just
Can contactless, no pressure, no-spark and send out electrical command rapidly, accurately reflect the position of detection object.Wherein, it is described
Pre-determined distance ranging from proximity sensor and the distance of detection object are less than or equal to 2mm.
In the present embodiment, it when being opened close to light sensation, can detect in distance close in the range of light sensation pre-determined distance
Whether the number of people is had.
There is detection object if detecting in the range of the pre-determined distance, by the maximum of the terminal in step S204
Output power signal carries out back-off, so that the corresponding electromagnetic wave absorptivity of output power signal after the back-off is small
In or equal to pre-given electromagnetic wave absorptivity threshold value.
Specifically, the electromagnetic wave absorptivity (SAR, Specific Absorption Rate) is when Human body package is in penetrating
Frequently under (RF) energy of electromagnetic field, the energy of the ratio of human body absorbed energy, i.e. per unit mass absorption, unit W/kg, with
Formula S AR=d (dW/dm)/dt is indicated, wherein, W be terminal output power signal, m be unit quality, a signal
Output power corresponds to a SAR.
And for the test of SAR, the most commonly used is head part S AR tests, head part S AR tests use in one's ear mainly for close
, mobile communication terminal that there is voice call function, such as mobile phone.In general, mobile phone includes " patch in the test of head model
Face " and " inclination " two kinds of positions, as shown in Figure 2.Wherein, the test of SAR when upper row is terminal architrave, below a behavior it is whole
The test of SAR when end tilts 15 °.It is tested respectively in the left side of head model and right side under both positions, so that
The SAR value tested under this 4 kinds of positions is respectively less than or equal to pre-given electromagnetic wave absorptivity threshold value.
In the present embodiment, terminal is made to be in voice communication, if being approached by described detected close to light sensation in distance
When the interior someone's head rest of light sensation pre-determined distance range (2mm) is near, the signal after the back-off measured in test mode is exported
Power is used under real net pattern, and corresponding SAR meets real Head SAR off the net under the performance number.Meanwhile by the signal
Output power value of the output power value as terminal under the voice communication of LTE connection status.Wherein, the Head under real net pattern
SAR is 1.6W/kg (1 gram) under Unite States Standard, is 2.0W/kg (10 grams) under China and European standard.
Optionally, if being not detected by proximity sensor, the number of people is close, keeps the peak signal output power of terminal
It is constant, so that the signal transmission quality under non-voice mode is unaffected.
In embodiments of the present invention, when the receiver for detecting terminal is opened and terminal is worked at the same time under LTE patterns,
The proximity sensor of terminal is opened, then detects whether that someone's head rest is near by proximity sensor, if detecting, someone's head rest is near,
The peak signal output power of terminal is then subjected to back-off, so that the electromagnetic wave under the output power signal after rollback is inhaled
Yield meets the requirement of the electromagnetic wave absorptivity under real net pattern.By only back-off terminal under the speech pattern of LTE
Output power signal without output power signal of the rollback terminal under the data pattern of LTE, reduces the electricity of terminal-pair human body
While electro-magnetic wave absorption rate, the communication efficiency of terminal is improved.
Fig. 4 is a kind of composition structure diagram of terminal in the embodiment of the present invention, and the terminal includes at least as shown in the figure：
The terminal is opened and detected to detection module 410 whether in LTE works for the receiver of detection terminal
Operation mode when the receiver for detecting the terminal is opened and the terminal is in LTE operating modes, opens connecing for the terminal
Nearly sensor.
The detection module 410 detects whether the terminal is specifically used in LTE operating modes：Detecting the terminal is
It is no to be connected to LTE comprehensive test instruments, if then confirming that the terminal is in LTE operating modes.
Specifically, when detect that terminal receiver opens, and when terminal is in LTE patterns, the proximity sensor of terminal is opened.
Whether the method in LTE operating modes can be to detect whether the terminal is connected to LTE comprehensive test instruments to the detection terminal.
Optionally, white card, LTE test cards, 4G test cards, LTE- can be inserted into the terminal before LTE comprehensive test instruments are connected
FDD cards or LTE-TDD cards etc., are specifically not construed as limiting.This kind of card can be used for signal testing, by the way that comprehensive test instrument is coordinated to realize signal
To instrument to the exclusive path of terminal, make test environment more succinct, it can be achieved that noiseless integration test to terminal.
Judgment module 420, for passing through the proximity sensor detection in the range of pre-determined distance with the presence or absence of detection pair
As.
Specifically, when the induction region of detection object proximity sensor, i.e., when in the range of described pre-determined distance, sensor is just
Can contactless, no pressure, no-spark and send out electrical command rapidly, accurately reflect the position of detection object.Wherein, it is described
Pre-determined distance ranging from proximity sensor and the distance of detection object are less than or equal to 2mm.
In the present embodiment, it when being opened close to light sensation, can detect in distance close in the range of light sensation pre-determined distance
Whether the number of people is had.
Back-off module 430, described in when detecting in the range of the pre-determined distance in the presence of detection object, inciting somebody to action
The peak signal output power of terminal carries out back-off, so that the corresponding electromagnetism of output power signal after the back-off
Wave absorptivity is less than or equal to pre-given electromagnetic wave absorptivity threshold value.
Specifically, the electromagnetic wave absorptivity (SAR, Specific Absorption Rate) is when Human body package is in penetrating
Frequently under (RF) energy of electromagnetic field, the energy of the ratio of human body absorbed energy, i.e. per unit mass absorption, unit W/kg, with
Formula S AR=d (dW/dm)/dt is indicated, wherein, W be terminal output power signal, m be unit quality, a signal
Output power corresponds to a SAR.
And for the test of SAR, the most commonly used is head part S AR tests, head part S AR tests use in one's ear mainly for close
, mobile communication terminal that there is voice call function, such as mobile phone.In general, mobile phone includes " patch in the test of head model
Face " and " inclination " two kinds of positions, as shown in Figure 2.Wherein, the test of SAR when upper row is terminal architrave, below a behavior it is whole
The test of SAR when end tilts 15 °.It is tested respectively in the left side of head model and right side under both positions, so that
The SAR value tested under this 4 kinds of positions is respectively less than or equal to pre-given electromagnetic wave absorptivity threshold value.
In the present embodiment, if being detected by described close to light sensation in distance close to light sensation pre-determined distance range (2mm)
When interior someone's head rest is near, the peak signal output power (23dBm) of terminal is subjected to back-off, the signal after being retracted is defeated
Go out power.In general, the output power signal after the back-off is by the peak signal output power (23dBm) of the terminal
Reduce 1~6dBm.And according to formula S AR=d (dW/dm)/dt, calculate corresponding SAR under the output power signal after rollback
Less than or equal to the default Head SAR threshold values under test pattern.If so, using the output power signal after retracting as
Otherwise output power value under voice communication of the terminal under LTE operating modes, continues to adjust in the range of 1~6dBm is reduced
Section so that final output power signal is less than or equal to default Head SAR threshold values.Wherein, the default Head SAR thresholds
Value is 1.6W/kg (1 gram) under Unite States Standard, is 2.0W/kg (10 grams) under China and European standard.
Optionally, if being not detected by proximity sensor, the number of people is close, keeps the peak signal output power of terminal
It is constant, so that the signal transmission quality under non-voice mode is unaffected.
Optionally, the terminal further includes：
First receiver opens module 440, for according to the opening receiver Engineering Order received, opening listening for the terminal
Cylinder.
Specifically, when terminal receives the opening receiver Engineering Order of tester's input, the receiver of terminal is opened, with
Open the voice pathway of terminal.The Engineering Order input mode can be that tester carries out key entry operation in key area,
Or corresponding character string is inputted in the touch screen of terminal, so that the character string of input is converted to corresponding work by terminal
Cheng Zhiling is not especially limited herein.
Optionally, the terminal further includes：
Second receiver opens module 450, for being opened according to the receiver of the talk application program of the terminal received
The receiver of the terminal is opened in request.
Specifically, under real net pattern, the receiver for receiving the talk application program of the terminal opens request, and open institute
State the receiver of terminal.The talk application program can be the speech business (VOLTE, Voice over LTE) based on IMS, net
Network phone (VoIP, Voice over Internet Protocol), wechat phone, QQ voice calls, incoming call, credulity etc..
In embodiments of the present invention, when the receiver for detecting terminal is opened and terminal is worked at the same time under LTE patterns,
The proximity sensor of terminal is opened, then detects whether that someone's head rest is near by proximity sensor, if detecting, someone's head rest is near,
The peak signal output power of terminal is then subjected to back-off, so that the electromagnetic wave under the output power signal after rollback is inhaled
Yield meets test and the requirement of the electromagnetic wave absorptivity under real net pattern.By only back-off terminal LTE voice mould
Output power signal under formula without output power signal of the rollback terminal under the data pattern of LTE, reduces terminal-pair people
While the electromagnetic wave absorptivity of body, the communication efficiency of terminal is improved.
Fig. 5 illustrate a kind of method for running the electromagnetic wave absorptivity under above-mentioned reduction LTE operating modes based on Feng Nuo
According to the computer system 10 of graceful system.The computer system 10 can be smart mobile phone, tablet computer, palm PC, notebook
The terminal devices such as computer or PC.Specifically, it may include the outer input interface 1001 connected by system bus, processing
Device 1002, memory 1003 and output interface 1004.Wherein, outer input interface 1001 may include touch screen 10016, optionally
It can also include network interface 10018.Memory 1003 may include external memory 10032 (such as hard disk, CD or floppy disk etc.)
With built-in storage 10034.Output interface 1004 may include display screen, 10042 and the equipment such as sound equipment/loudspeaker 10044.
In the present embodiment, the operation of this method is based on computer program, and the program file of the computer program is stored in
In the external memory 10032 of the aforementioned computer system 10 based on von Neumann system, it is loaded into built-in storage at runtime
It in 10034, is then compiled as being transferred in processor 1002 after machine code performing, so that based on von Neumann system
Computer system 10 in form detection module 410, judgment module 420, back-off module 430, the first receiver in logic
Open module 440, the second receiver opens module 450.And the method for the electromagnetic wave absorptivity under above-mentioned reduction LTE operating modes
In implementation procedure, the parameter of input is received by outer input interface 1001, and is transferred in memory 1003 and is cached, then
It being input in processor 1002 and is handled, the result data of processing or be cached in memory 1003 is subsequently handled,
Or it is passed to output interface 1004 and is exported.
One of ordinary skill in the art will appreciate that realizing all or part of flow in above-described embodiment method, being can be with
Relevant hardware is instructed to complete by computer program, the program can be stored in a computer read/write memory medium
In, the program is when being executed, it may include such as the flow of the embodiment of above-mentioned each method.Wherein, the storage medium can be magnetic
Dish, CD, read-only memory (Read-Only Memory, ROM) or random access memory (Random Access
Memory, RAM) etc..
The above disclosure is only the preferred embodiments of the present invention, cannot limit the right model of the present invention with this certainly
It encloses, therefore equivalent variations made according to the claims of the present invention, is still within the scope of the present invention.
Claims (4)
- A kind of 1. method for reducing the electromagnetic wave absorptivity (SAR) under LTE operating modes, which is characterized in that including：It is inserted into white card, LTE test cards, 4G test cards, LTE-FDD cards or LTE- in the terminal before LTE comprehensive test instruments are connected TDD cards are for signal testing, by the way that comprehensive test instrument is coordinated to realize exclusive path of the signal to instrument to terminal to realize to terminal Noiseless integration test；It detects that the receiver of terminal is opened, and detect that the terminal is connected to LTE comprehensive test instruments, then judges that the terminal is in LTE operating modes open the proximity sensor of the terminal to carry out head part S AR tests；The head part S AR tests include architrave SAR tests and tilt SAR tests, and the architrave SAR tests are the terminal architrave When SAR test, the SAR tests tilted when SAR tests tilt 15 ° for terminal architrave SAR test and tilt SAR Test tested respectively in the left side of head model and right side so that the SAR value tested under this 4 kinds of positions be respectively less than or Equal to default head part S AR threshold values；The specific steps of the head part S AR tests are included in each position and are detected by the proximity sensor in pre-determined distance model With the presence or absence of detection object in enclosing；When the induction region of detection object proximity sensor, the proximity sensor is contactless, without pressure Power, no-spark and it is rapid send out electrical command to accurately reflect the position of detection object, the pre-determined distance is ranging from close The distance of sensor and detection object is less than or equal to 2mm；If detect in the range of the pre-determined distance exist detection object, by the peak signal output power of the terminal into Row back-off, back-off is adjusted in the range of 1~6dBm is reduced, so that the output power signal after the back-off Corresponding SAR is less than or equal to default head part S AR threshold values；According to formula S AR=d (dW/dm)/dt, calculate corresponding SAR under the output power signal after rollback whether be less than or Person is equal to default head part S AR threshold values, and W is the output power signal of terminal, and m is unit quality, and an output power signal corresponds to One SAR；If so, using the output work of the output power signal after retracting as terminal under the voice communication of LTE operating modes Otherwise rate value, continues to adjust in the range of 1~6dBm is reduced so that final output power signal is less than or equal to pre- If head part S AR threshold values.
- 2. the method as described in claim 1, which is characterized in that before the receiver for detecting terminal is opened, further include：According to the opening receiver Engineering Order received, the receiver of the terminal is opened.
- 3. a kind of terminal, which is characterized in that white card, LTE test cards, 4G are inserted into before LTE comprehensive test instruments are connected, in the terminal Test card, LTE-FDD cards or LTE-TDD cards are for signal testing, by the way that comprehensive test instrument is coordinated to realize signal to instrument to eventually To realize the noiseless integration test to terminal, the terminal includes the exclusive path at end：Whether detection module opens and detects whether the terminal is connected to LTE comprehensive test instruments for the receiver of detection terminal, If so, judging that the terminal is in LTE operating modes, the proximity sensor of the terminal is opened to carry out head part S AR tests； The head part S AR tests include architrave SAR tests and tilt SAR tests, when the architrave SAR tests is the terminal architraves The test of SAR, the SAR when inclination SAR tests tilt 15 ° for terminal are tested, and the architrave SAR tests and tilts SAR and surveys Examination is tested respectively in the left side of head model and right side, so that the SAR value tested under this 4 kinds of positions is respectively less than or waits In default head part S AR threshold values；Judgment module whether there is for passing through the proximity sensor detection in the range of pre-determined distance Detect object；When detection object proximity sensor induction region, the proximity sensor is contactless, no pressure, no-spark and It is rapid to send out electrical command to accurately reflect the position of detection object, the pre-determined distance ranging from proximity sensor and detection The distance of object is less than or equal to 2mm；Back-off module, for detect in the range of the pre-determined distance exist detection object when, by the terminal Peak signal output power carry out back-off so that the corresponding SAR of output power signal after the back-off be less than or Person is equal to default head part S AR threshold values；The terminal is additionally operable to, according to formula S AR=d (dW/dm)/dt, calculate corresponding under the output power signal after rollback Whether SAR is less than or equal to default head part S AR threshold values, and W is the output power signal of terminal, and m is unit quality, a signal Output power corresponds to a SAR；If so, using the output work of the output power signal after retracting as terminal under the voice communication of LTE operating modes Otherwise rate value, continues to adjust in the range of 1~6dBm is reduced so that final output power signal is less than or equal to pre- If head part S AR threshold values.
- 4. terminal as claimed in claim 3, which is characterized in that the terminal further includes：First receiver opens module, for according to the opening receiver Engineering Order received, opening the receiver of the terminal.
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| CN108881618A (en) * | 2018-05-28 | 2018-11-23 | Oppo广东移动通信有限公司 | Reduce method, mobile terminal and its storage medium of electromagnetic wave specific absorption rate |
| CN108601073B (en) * | 2018-07-09 | 2021-06-29 | 深圳市万普拉斯科技有限公司 | Method for reducing SAR, mobile terminal and computer readable storage medium |
| CN109068383A (en) * | 2018-08-24 | 2018-12-21 | 维沃移动通信有限公司 | A kind of method and terminal device adjusting antenna transmission power |
| WO2020103056A1 (en) * | 2018-11-21 | 2020-05-28 | Oppo广东移动通信有限公司 | Power density adjusting method, device and storage medium |
| CN110138402A (en) * | 2019-04-02 | 2019-08-16 | 华勤通讯技术有限公司 | A kind of control method, device and the mobile terminal of mobile terminal output power |
| CN110995305A (en) * | 2019-12-26 | 2020-04-10 | 上海闻泰电子科技有限公司 | Method, device, equipment and storage medium for adjusting specific absorption rate of electromagnetic wave |
| CN111356222A (en) * | 2020-03-13 | 2020-06-30 | 华为技术有限公司 | Transmission power adjustment method, terminal, storage medium, and electronic device |
| CN111526594B (en) * | 2020-04-17 | 2022-08-05 | 蓓安科仪（北京）技术有限公司 | Medical robot uplink transmission method and system based on 5G communication |
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