CN103338285A - Anti-radiation mobile terminal and method thereof - Google Patents
Anti-radiation mobile terminal and method thereof Download PDFInfo
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- CN103338285A CN103338285A CN 201310271790 CN201310271790A CN103338285A CN 103338285 A CN103338285 A CN 103338285A CN 201310271790 CN201310271790 CN 201310271790 CN 201310271790 A CN201310271790 A CN 201310271790A CN 103338285 A CN103338285 A CN 103338285A
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Abstract
The invention provides an anti-radiation mobile terminal and a method thereof. The anti-radiation mobile terminal includes a transceiving antenna, a radio frequency module, an orientation antenna, a transmitting antenna selector and a radio frequency switch, wherein the major lobe of directional diagram of the orientation antenna does not face to a user according to the relative position of the orientation antenna and the user when the terminal is in use; the radio frequency switch is controlled by the transmitting antenna selector, and switches uplink transmitting signals output by the radio frequency module between the orientation antenna and the transceiving antenna; the transmitting antenna selector can be used for judging whether a wireless path is in a position where the orientation antenna can reduce radiation to the human body according to the wireless signal quality of the orientation antenna and the transceiving antenna, and controls the radio frequency switch to be switched to the orientation direction for uplink transmission if the wireless path is in the position where the orientation antenna can reduce radiation to the human body. Therefore, electromagnetic wave radiation of the movable terminal to users can be reduced.
Description
Technical field
The present invention relates to a kind of anti-radiation mobile terminal and method, especially can reduce portable terminal and the method thereof of user's electromagenetic wave radiation.
Background technology
The maximum radio frequency transmitting power of portable terminal (being designated hereinafter simply as terminal) is generally between 0.125-2W now.Although terminal transmit power is little, because closer from human body, when talking state, be close to head, the electromagenetic wave radiation that causes is big more than communication base station.The main task that reduces the mobile communication system electromagenetic wave radiation is exactly: reduce terminal to the electromagnetic wave dosage of human body radiation.
As the existing portable terminal block diagram of Fig. 1, terminal generally has only a transmitting antenna, and its directional diagram generally is theaomni-directional transmission, as long as when launching, human body just can be subjected to electromagenetic wave radiation inevitably.In order to reduce the electromagenetic wave radiation of terminal, technology such as mobile phone radiation proof pad pasting and mobile phone shielding cover have been arranged, realize avoiding radiation by the directional diagram that changes antenna.Influence is brought to the operate as normal of antenna in magnetic field around this pad pasting or the housing meeting potato masher antenna, and the antenna internal structure difference of different brands terminal, often can not reach the purpose of improving antenna pattern.Therefore the radiation proof effect of mobile phone radiation proof pad pasting and mobile phone shielding cover is very unreliable.
If mobile phone radiation proof pad pasting and mobile phone shielding cover can successfully improve the directional diagram of antenna, but when hindering electromagnetic wave to human body radiation, hinder the electromagnetic wave of terminal emission probably simultaneously to the propagation of communication base station, also hindered the electromagnetic wave of base station emission to the propagation of terminal.Because mobile communication system generally has control function of power to guarantee that the wireless signal that receives satisfies the certain mass level.Control function of power can be described as: cross when low when the signal quality that receives, receiver can require transmitter to improve transmitting power; When the signal quality that receives was too high, receiver can require transmitter to reduce transmitting power.When this pad pasting or housing had hindered radio signal propagation, control function of power can make terminal and base station all improve signal transmission power, compensates the decay that mobile phone radiation proof pad pasting and mobile phone shielding cover bring.In this case, not only can not reduce terminal to the electromagenetic wave radiation of human body, terminal can be wasted the valuable energy content of battery because improve transmitting power on the contrary, and the base station all forces with terminal and uses high-power emission also can disturb communicating by letter of other-end in addition.If such mobile phone radiation proof pad pasting and mobile phone shielding cover screening effectiveness is too high, cause the radio path decay excessive, terminal or base station use high transmit power can not resist the radio path decay, can cause that then radio communication is blocked.
Summary of the invention
Main purpose of the present invention provides a kind of anti-radiation mobile terminal, and reliable radiation proof effect is provided.
To achieve these goals, the invention provides a kind of anti-radiation mobile terminal, comprise dual-mode antenna, radio-frequency module and directional aerial, emitting antenna selecting device, radio-frequency (RF) switch:
Directional aerial, with reference under the described terminal use state and user's relative position, its major lobe of directional diagram is avoided towards the user; Radio-frequency (RF) switch is accepted the control of emitting antenna selecting device, and up the transmitting of radio-frequency module output switched between directional aerial and dual-mode antenna; The emitting antenna selecting device according to the radio signal quality of directional aerial and dual-mode antenna, judges that can directional aerial reduce human body radiation, is then to control radio-frequency (RF) switch to switch to directional aerial and carry out up emission.
To achieve these goals, the present invention also provides a kind of method of anti-radiation mobile terminal, may further comprise the steps:
Step a: according to the radio signal quality of directional aerial and dual-mode antenna, judging that can directional aerial reduce human body radiation, is execution in step b then;
Step b: with the up transmitting antenna of directional aerial as terminal.
Because the present invention simply hinders the emission of the upward signal of terminal, but by the antenna wireless quality of signals, select the service orientation antenna to carry out up emission, thereby radiation protection ability reliably is provided, guarantee the normal of radio communication.
Description of drawings
Fig. 1 is existing portable terminal block diagram;
Fig. 2 is dual-mode antenna of the present invention and directional aerial installation site figure;
Fig. 3 is dual-mode antenna of the present invention and directional aerial directional diagram;
Fig. 4 is anti-radiation mobile terminal block diagram of the present invention;
Fig. 5 is the first embodiment of the invention block diagram;
Fig. 6 is the second embodiment of the invention block diagram;
Fig. 7 is the third embodiment of the invention block diagram;
Fig. 8 is the flow chart of anti-radiation mobile terminal of the present invention;
Fig. 9 is the improvement flow chart of Fig. 8.
Embodiment
Below in conjunction with the drawings and specific embodiments implementation method of the present invention is described.
The base station can be by direct projection, reflection, refraction, mode incoming terminal such as reflection repeatedly to the downlink radio-frequency signal (also claiming forward signal) of terminal emission, and the approach of radiofrequency signal process that can incoming terminal is called as wireless path.For mobile communication system, the up-downgoing channel is generally symmetrical frequency band or common-frequency time division duplex, and it is the same substantially that the up-downgoing wireless path is considered to.Terminal is reverse to path direction and the downstream wireless signals of the up radiofrequency signal (also claiming reverse signal) of base station emission like this, and pad value is identical.
Terminal and base station communicate by wireless signal, and a base station can cover a plurality of communication sector, and the base station is unit configuration duplexer with each sector, thus wireless signal be between terminal antenna and base station sector antenna, carry out airborne.
The antenna of existing terminal generally is theaomni-directional transmission and reception, and the electromagnetic wave energy that only mails to base station sector antenna in fact is used for communication, and the electromagnetic wave energy on other directions is wasted, and causes electromagenetic wave radiation to pollute to surrounding environment.If terminal can dispose directional aerial, and without theaomni-directional transmission, then reducing electromagenetic wave radiation to the user provides possibility.
As Fig. 2, dual-mode antenna 201 has been installed on the top at the terminal back side, and dual-mode antenna is generally omnidirectional and receives and transmitting antenna, or the omnidirectional on the horizontal plane receives and transmitting antenna.In the bottom of terminal directional aerial 202 has been installed.The installation site of dual-mode antenna 201 and directional aerial 202 does not have specific requirement, and general directional aerial does not influence transmitting and receiving of dual-mode antenna, so both installation sites need guarantee certain distance on terminal.
Fig. 3 is the directional diagram of dual-mode antenna and directional aerial, and curve 301 is the directional aerial directional diagram, and curve 302 is the dual-mode antenna directional diagram.Under terminal use state, the main lobe of curve 301 deviates from the user.Suppose through measuring and calculating, when terminal uses dual-mode antenna and directional aerial to launch respectively, there is 50% and 5% emitted energy to be absorbed by the body respectively, then the electromagnetic power of absorption of human body be respectively transmitting power-3dB and-13dB, for convenience of description, hereinafter this value is called the absorption of human body power ratio.
In the drawings on the A direction, the high 5dB of directional aerial ratio of gains dual-mode antenna.When then the wireless path of communicating by letter with base station section when terminal was in the A direction, directional aerial only need be than the transmitting power of the low 5dB of dual-mode antenna, and base station sector antenna just can receive the signal of same intensity.At this moment the human body electromagenetic wave radiation power of service orientation antenna with use dual-mode antenna to compare, have only dual-mode antenna (13dB)-(3dB)-(5dB)=-15dB.Wherein, (13dB)-(3dB)=directional aerial absorption of human body power ratio-dual-mode antenna absorption of human body power ratio, be that the absorption of human body power ratio is poor to call it in the following text; 5dB is that antenna gain is poor for direction antenna gain on this wireless path direction deducts the dual-mode antenna antenna gain to call it in the following text.Because absorption of human body power ratio by under the pattern characteristics of two antennas and the terminal use state with respect to the determining positions of human body, therefore can measure in advance.
The gain of direction antenna and dual-mode antenna equates on B, the C direction in the drawings, the wireless path of communicating by letter with base station section when terminal is during in B or C direction, at this moment the human body electromagenetic wave radiation power of service orientation antenna with use the dual-mode antenna to compare, have only dual-mode antenna: (absorption of human body power ratio-antenna gain is poor)=(13dB)-(3dB)-(0dB)=-10dB.From figure also as can be seen: be rotated counterclockwise from the B direction in the angle of C direction, the gain of directional aerial is bigger than dual-mode antenna all the time, the transmitting power that directional aerial needs is not more than dual-mode antenna all the time, but the absorption of human body power ratio of directional aerial is more much lower than dual-mode antenna.Wherein the wireless path on the A direction can obtain the maximum human body radiation dosage range of decrease, and the antenna gain difference of this direction is hereinafter referred to as antenna maximum gain ratio.
The wireless path of communicating by letter with base station section when terminal is during in D or E direction, at this moment the ratio of gains dual-mode antenna of directional aerial is low, the antenna gain difference is-10dB, but because absorption of human body power ratio be (13dB)-(3dB)=-10dB, which therefore at this moment no matter use antenna to launch, the electromagenetic wave radiation of human body is equated.Therefore, be rotated clockwise to from the B direction in the angle of D direction (not comprising two-end-point), although the service orientation antenna needs bigger transmitting power, the directional aerial emission can obtain the radiation of littler human body.In like manner, be rotated counterclockwise from the C direction in the angular range of E direction, the emission of service orientation antenna can obtain the radiation of littler human body.
Be rotated clockwise to from the D direction in the angle of E direction, the directional aerial gain is very little.If wireless path falls into this scope, and service orientation antenna emission, can force radio-frequency module to increase input power, at this moment generally can not bring the radiation proof effect, but generally can not increase electromagenetic wave radiation yet, but can cause base station and terminal to use high-power emission, thereby disturb the proper communication of other-end.Therefore at this moment needing to switch uses dual-mode antenna to launch.
Fig. 4 is anti-radiation mobile terminal block diagram of the present invention, comprises directional aerial 401, dual-mode antenna 402, radio-frequency (RF) switch 403, emitting antenna selecting device 404, radio-frequency module 405, baseband processing module 406.
Directional aerial 401, under the reference terminal use state and user's relative position, the main lobe of its directional diagram 301 is avoided towards the user, and has very little emission back lobe.Up transmitting antenna when terminal switches to directional aerial 401 from dual-mode antenna 402 like this, can make the user avoid radiation.Dual-mode antenna 402 is reception and the transmitting antenna of existing terminal, and its directional diagram is generally the omni-directional pattern shown in 302 curves.Radio-frequency (RF) switch 403 is accepted the control of emitting antenna selecting device 404, and up the transmitting of radio-frequency module 405 outputs switched between directional aerial 401 and dual-mode antenna 402.Does emitting antenna selecting device 404 according to the radio signal quality of directional aerial and dual-mode antenna, judge that directional aerial can reduce human body radiation? be then to control radio-frequency (RF) switch to switch to directional aerial and carry out up emission.Therefore the present invention has the effect that reduces the human body electromagenetic wave radiation.Emitting antenna selecting device 404 can obtain the radio signal quality of directional aerial and dual-mode antenna by base band signal process.
Conversely, does emitting antenna selecting device 404 judge that directional aerial can reduce human body radiation? if whether, also can control radio-frequency (RF) switch and switch to dual-mode antenna and carry out up emission.Up like this emission is switched between two antennas automatically back and forth according to signal quality.
Here introduce a kind of method of measurement of radio signal quality earlier---the signal quality measured method of up-link wireless.Because there is power control techniques in mobile communication system, control transmitter the method for power according to the quality of reception of receiver.Therefore can be by initiatively carrying out up emission at directional aerial and dual-mode antenna, and initiatively attempt using different Initial Transs by Base-Band Processing, the size of the transmitting power after finally being stablized by the power control techniques adjustment has also embodied two radio signal quality that antenna is different, this different radio signal quality is that the different gains by antenna causes in fact, can be used as the foundation of the radio signal quality of above-mentioned emitting antenna selecting device 404.
Except with the up signal measurement, can also pass through downlink signal quality, the radio signal quality that direction of measurement antenna and dual-mode antenna receive.Pass through base band signal process, calculated direction antenna and dual-mode antenna receive signal strength difference, because the characteristic of communication system up-downgoing wireless path symmetry reciprocity, the gain difference basically identical in this difference and directional aerial, dual-mode antenna up-link wireless path, the just value of above-mentioned antenna gain difference.Also can be used as the foundation of the aerial signal quality of above-mentioned emitting antenna selecting device 404.
Analysis according to Fig. 3, judge whether the radio signal quality of directional aerial surpasses the radio signal quality of dual-mode antenna, just whether the current wireless path is dropped among Fig. 3 and is rotated counterclockwise in the angle of C direction from the B direction, be then to control radio-frequency (RF) switch to switch to directional aerial and carry out up emission, at this moment not only radiation proof effect is fine, and the transmitting power of antenna also can reduce; Otherwise the control radio-frequency (RF) switch switches to dual-mode antenna and carries out up emission.
Can also be according to the radio signal quality of directional aerial and dual-mode antenna, it is poor to calculate radio signal quality by following formula, and radio signal quality is poor=radio signal quality of the radio signal quality-dual-mode antenna of directional aerial.Judge that whether the radio signal quality difference is greater than absorption of human body power ratio, just whether the current wireless path is dropped among Fig. 3 and is rotated counterclockwise in the angle of E direction from the D direction, be then to control radio-frequency (RF) switch to switch to directional aerial and carry out up emission, although transmitting power that at this moment may directional aerial is greater than the transmitting power of dual-mode antenna, the radiation of human body has been reduced on the contrary; Otherwise the control radio-frequency (RF) switch switches to dual-mode antenna and carries out up emission.
Can also be according to the radio signal quality of directional aerial and dual-mode antenna, judge whether the radio signal quality difference of directional aerial and dual-mode antenna starts thresholding greater than directional aerial, be then to control radio-frequency (RF) switch to switch to directional aerial and carry out up emission.Described directional aerial enabling gate is limited to any value from absorption of human body power ratio to antenna maximum gain ratio, and can be set in advance by the user.Whether the radio signal quality difference of judging directional aerial and dual-mode antenna stops thresholding less than directional aerial, is then to control radio-frequency (RF) switch to switch to dual-mode antenna and carry out up emission.Described directional aerial stops thresholding and is any value from absorption of human body power ratio to antenna maximum gain ratio, and directional aerial startup thresholding stops thresholding more than or equal to directional aerial.Like this, reduce human body radiation generally, and by different threshold values is set, can limit the directional diagram angular range that starts the up emission of directional aerial, to reach personalized radiation proof effect.
Fig. 5 is the first embodiment of the invention block diagram, and emitting antenna selecting device 505 links to each other with baseband processing module 506.
In the prior art, because the needs of power control are generally measured downlink signal quality by baseband processing module 506.Measuring downlink signal quality measures according to diverse ways according to the communication system of employing different systems, for example, in TDMA or FDMA system, the intensity that receives signal is measured in the most normal use, in cdma system, measure the bit power of reception signal and the noise power ratio of acceptance, their unit is generally dB, and measuring downlink signal quality is technology of knowing altogether for the art personnel.
In tdma system, baseband processing module 506 and corresponding 505 needs of radio-frequency module thereof are handled wireless signal in reception and transmission time slot, the downlink signal quality of crack direction of measurement antenna 401 at one's leisure of therefore having the ability.The downlink signal quality of direction of measurement antenna need not be handled each radio frames, also need not carry out complex process such as demodulation, decoding to the wireless signal that receives, so measures signal quality only consumes seldom baseband processing module and RF module resource thereof.By the downlink signal quality of radio-frequency module and baseband processing module timesharing direction of measurement antenna 401 and dual-mode antenna 402, need not increase cost in the existing terminal; Perhaps only increase cost seldom, baseband processing module and radio-frequency module are carried out capability improving.
Emitting antenna selecting device 504 obtains the communication sector downlink signal quality of directional aerial and dual-mode antenna reception.It is poor to calculate radio signal quality, because the characteristic of communication system up-downgoing wireless path symmetry reciprocity, the gain difference basically identical in this value and directional aerial, dual-mode antenna up-link wireless path, the just value of above-mentioned antenna gain difference.If when the antenna gain difference surpassed above-mentioned absorption of human body power ratio, then the service orientation antenna had littler human body radiation.Can carry out up emission by the switching direction antenna, to reduce human body radiation.
Fig. 6 is the second embodiment of the invention block diagram, and Receiver Module 607 and signal quality measured module 608 are used for the downlink signal quality of direction of measurement antenna 401 specially.Also can on the basis of existing terminal, only increase a Receiver Module or only increase the downlink signal quality that a signal quality measured module is come direction of measurement antenna 401 according to the needs of disposal ability.The downstream signal that dual-mode antenna 402 receives carries out mass measurement in baseband processing module 406.
Because the wireless path possibility is more than one in the actual wireless environment.In WCDMA, CDMA IS95, CDMA2000, TD-SCDMA system, the switching mode that soft handover and More Soft Handoff are arranged, in this case, may have many wireless paths especially keeps communicating by letter with terminal, the method that above-mentioned downlink signal quality is measured need merge processing with a plurality of wireless paths, the quality information after obtaining merging.
The communication sector downstream wireless signals quality that the communication sector downstream wireless signals quality that directional aerial receives and dual-mode antenna receive, the downlink dedicated channels of this terminal is estimated in common down channel that can be by base station section or the communication base station sector.
Because the signal quality measured method of above-mentioned up-link wireless need initiatively be launched on antenna, therefore in the time of carrying out the said method measurement, the problem that exists transmitting power initiatively to fluctuate can have influence on the radiation proof effect like this.The method that therefore above-mentioned upward signal is measured is poorer than the effect of the method that downstream signal is measured.
Above embodiment is when work; because the main wireless path of communicating by letter with base station section is not changeless; and whether embodiment can only determine the service orientation antenna according to the quality of wireless signal, and when using dual-mode antenna to carry out up emission, human body just can not get radiation-resistant protection.But from the angle of statistics, the direction of wireless path is random distribution with respect to terminal, and then the present invention has radiation proof effect preferably generally, especially with respect to mobile phone radiation proof pad pasting and mobile phone shielding cover technology, can not disturb normal communication.
Fig. 7 is the third embodiment of the invention block diagram, and radiation alarm set 709 among the figure when detecting terminal and use dual-mode antenna to carry out up emission, then sends prompting to the user.At this moment the people knows from experience the irradiation of electromagnetic waves that is subjected to the dual-mode antenna emission inevitably, the user can be by adjusting the orientation of terminal, when adjusting to main wireless path direction and fall in directional aerial 401 major lobe of directional diagram scopes, automatically switch to directional aerial and carry out up emission, then reduce the electromagenetic wave radiation of human body.
More preferably, radiation can be set remind control switch 710, can control radiation alarm set 709 and start or close.
The dual-mode antenna of anti-radiation mobile terminal of the present invention and the quantity of directional aerial do not limit, can be more than one.
Anti-radiation mobile terminal of the present invention is applicable in the cellular mobile terminal that adopts following a kind of standard or some other mobile radio terminal, Wireless LAN terminal in: PHS, GSM, GPRS, EDGE, WCDMA, CDMA IS95, CDMA2000, TD-SCDMA.
Fig. 8 is a kind of anti-radiation mobile terminal processing method of the present invention:
Step 801: according to the radio signal quality of directional aerial and dual-mode antenna, judge that directional aerial can reduce human body radiation? it is execution in step 802 then;
Step 802: with the up transmitting antenna of directional aerial as terminal.
Fig. 9 is the improvement flow process of anti-radiation mobile terminal processing method shown in Figure 8:
Step 901: according to the radio signal quality of directional aerial and dual-mode antenna, judge that directional aerial can reduce human body radiation? be execution in step 802 then, otherwise execution in step 903;
Step 802: with the up transmitting antenna of directional aerial as terminal;
Step 903: with the up transmitting antenna of dual-mode antenna as terminal.
More preferably, above-mentioned steps 801 comprises:
Step 1001: according to the radio signal quality of directional aerial and dual-mode antenna, judging that whether the radio signal quality of directional aerial surpasses the radio signal quality of dual-mode antenna, is execution in step 802 then.
More preferably, step 1001 comprises:
Step 1101: according to the radio signal quality of directional aerial and dual-mode antenna, judging that whether the radio signal quality of directional aerial surpasses the radio signal quality of dual-mode antenna, is execution in step 802 then, otherwise execution in step 1103;
And increase step 1103: with the up transmitting antenna of dual-mode antenna as terminal.
More preferably, above-mentioned steps 801 comprises:
Step 1201: according to the radio signal quality of directional aerial and dual-mode antenna, whether judging the radio signal quality difference of directional aerial and dual-mode antenna greater than absorption of human body power ratio, is execution in step 802 then.
More preferably, step 1201 comprises:
Step 1301: according to the radio signal quality of directional aerial and dual-mode antenna, whether judging the radio signal quality difference of directional aerial and dual-mode antenna greater than absorption of human body power ratio, is execution in step 802 then, otherwise execution in step 1303;
And increase step 1303: with the up transmitting antenna of dual-mode antenna as terminal.
More preferably, above-mentioned steps 1201 comprises:
Step 1401: according to the radio signal quality of directional aerial and dual-mode antenna, whether the radio signal quality difference of judging directional aerial and dual-mode antenna starts thresholding greater than directional aerial, described directional aerial enabling gate is limited to any value from absorption of human body power ratio to antenna maximum gain ratio, is execution in step 802 then.
More preferably, step 1401 comprises:
Step 1501: according to the radio signal quality of directional aerial and dual-mode antenna, whether the radio signal quality difference of judging directional aerial and dual-mode antenna starts thresholding greater than directional aerial, described directional aerial enabling gate is limited to any value from the absorption of human body power ratio to antenna maximum gain ratio, be execution in step 802 then, otherwise execution in step 1503;
And increase step 1503: with the up transmitting antenna of dual-mode antenna as terminal.
The radio signal quality of above-mentioned directional aerial and the radio signal quality of dual-mode antenna are the communication sector downstream wireless signals quality that directional aerial and dual-mode antenna receive respectively.
The method of anti-radiation mobile terminal of the present invention is applicable in the cellular mobile terminal that adopts following a kind of standard or some other mobile radio terminal, Wireless LAN terminal in: PHS, GSM, GPRS, EDGE, WCDMA, CDMA IS95, CDMA2000, TD-SCDMA.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with the people of this technology in the disclosed technical scope of the present invention; can expect easily changing or replacing, all should drop within protection scope of the present invention.
Claims (10)
1. anti-radiation mobile terminal comprises dual-mode antenna, radio-frequency module, directional aerial, emitting antenna selecting device, radio-frequency (RF) switch:
Directional aerial, with reference under the described terminal use state and user's relative position, its major lobe of directional diagram is avoided towards the user;
Radio-frequency (RF) switch is accepted the control of emitting antenna selecting device, and up the transmitting of radio-frequency module output switched between directional aerial and dual-mode antenna;
It is characterized in that the emitting antenna selecting device according to the radio signal quality of directional aerial and dual-mode antenna, judges whether wireless path drops on the position that directional aerial can reduce human body radiation, is then to control radio-frequency (RF) switch to switch to directional aerial and carry out up emission.
2. anti-radiation mobile terminal as claimed in claim 1 is characterized in that:
The emitting antenna selecting device according to the radio signal quality of directional aerial and dual-mode antenna, judges whether wireless path drops on the position that directional aerial can reduce human body radiation, is then to control radio-frequency (RF) switch to switch to directional aerial and carry out up emission;
Otherwise the control radio-frequency (RF) switch switches to dual-mode antenna and carries out up emission.
3. anti-radiation mobile terminal as claimed in claim 1 is characterized in that:
The emitting antenna selecting device according to the radio signal quality of directional aerial and dual-mode antenna, judges that whether the radio signal quality of directional aerial surpasses the radio signal quality of dual-mode antenna, is then to control radio-frequency (RF) switch to switch to directional aerial and carry out up emission.
4. anti-radiation mobile terminal as claimed in claim 3 is characterized in that:
The emitting antenna selecting device according to the radio signal quality of directional aerial and dual-mode antenna, judges that whether the radio signal quality of directional aerial surpasses the radio signal quality of dual-mode antenna, is then to control radio-frequency (RF) switch to switch to directional aerial and carry out up emission;
Otherwise the control radio-frequency (RF) switch switches to dual-mode antenna and carries out up emission.
5. anti-radiation mobile terminal as claimed in claim 1 is characterized in that:
The emitting antenna selecting device, radio signal quality according to directional aerial and dual-mode antenna, judging the radio signal quality difference of directional aerial and dual-mode antenna whether greater than the absorption of human body power ratio of directional aerial and dual-mode antenna, is then to control radio-frequency (RF) switch to switch to directional aerial and carry out up emission.
6. anti-radiation mobile terminal as claimed in claim 5 is characterized in that:
The emitting antenna selecting device, radio signal quality according to directional aerial and dual-mode antenna, judging the radio signal quality difference of directional aerial and dual-mode antenna whether greater than the absorption of human body power ratio of directional aerial and dual-mode antenna, is then to control radio-frequency (RF) switch to switch to directional aerial and carry out up emission;
Otherwise the control radio-frequency (RF) switch switches to dual-mode antenna and carries out up emission.
7. the method for an anti-radiation mobile terminal is characterized in that may further comprise the steps:
Step a: according to the radio signal quality of directional aerial and dual-mode antenna, judging whether wireless path drops on the position that directional aerial can reduce human body radiation, is execution in step b then;
Step b: with the up transmitting antenna of directional aerial as terminal.
8. method as claimed in claim 7 is characterized in that:
Step a also comprises: otherwise execution in step c;
And increase step c: with the up transmitting antenna of dual-mode antenna as terminal.
9. method as claimed in claim 7 is characterized in that, step a comprises:
According to the radio signal quality of directional aerial and dual-mode antenna, judge that whether the radio signal quality of directional aerial surpasses the radio signal quality of dual-mode antenna, be execution in step b then.
10. method as claimed in claim 9 is characterized in that,
Step a also comprises: otherwise execution in step d;
And increase steps d: with the up transmitting antenna of dual-mode antenna as terminal.
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| CN 201310271790 CN103338285A (en) | 2006-07-18 | 2006-07-18 | Anti-radiation mobile terminal and method thereof |
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| CN 201310271790 CN103338285A (en) | 2006-07-18 | 2006-07-18 | Anti-radiation mobile terminal and method thereof |
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| CN 200610029089 Division CN1889590B (en) | 2006-07-18 | 2006-07-18 | Anti-radiation mobile terminal |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| WO2020192408A1 (en) * | 2019-03-22 | 2020-10-01 | 华为技术有限公司 | Communication method and communication device |
| WO2021258788A1 (en) * | 2020-06-22 | 2021-12-30 | 华为技术有限公司 | Terminal device, signal transmission method and baseband chip |
-
2006
- 2006-07-18 CN CN 201310271790 patent/CN103338285A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| WO2020192408A1 (en) * | 2019-03-22 | 2020-10-01 | 华为技术有限公司 | Communication method and communication device |
| WO2021258788A1 (en) * | 2020-06-22 | 2021-12-30 | 华为技术有限公司 | Terminal device, signal transmission method and baseband chip |
| CN113904706A (en) * | 2020-06-22 | 2022-01-07 | 华为技术有限公司 | Terminal device, signal transmission method and baseband chip |
| CN113904706B (en) * | 2020-06-22 | 2023-12-29 | 华为技术有限公司 | Terminal equipment, signal transmission method and baseband chip |
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Application publication date: 20131002 |