CN103179653A - Method and device for adjusting antenna transmitting power and mobile terminal - Google Patents
Method and device for adjusting antenna transmitting power and mobile terminal Download PDFInfo
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- CN103179653A CN103179653A CN2011104347031A CN201110434703A CN103179653A CN 103179653 A CN103179653 A CN 103179653A CN 2011104347031 A CN2011104347031 A CN 2011104347031A CN 201110434703 A CN201110434703 A CN 201110434703A CN 103179653 A CN103179653 A CN 103179653A
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Abstract
The invention provides a method and device for adjusting antenna transmitting power and a mobile terminal. The method comprises the steps of enabling the mobile terminal to sense a distance between the human body and one or a plurality of antennas; and adjusting the transmitting power of the corresponding antenna according to the distance. The transmitting power of the terminal antenna can be automatically adjusted according to the distance between the human body and the mobile terminal so as to achieve the goal of reducing electromagnetic wave energy absorption ratio.
Description
Technical field
The present invention relates to communication field, relate in particular to a kind of method of adjusting antenna transmission power and device, mobile terminal.
Background technology
development along with mobile communication technology, demand according to operator and user, produced the mobile terminal of multiple types, as GSM (Global System of Mobile communication, global system for mobile communications)/GPRS (General Packet Radio Service, GPRS)/EDGE (Enhanced Data rate for GSM Evolution, improve data transfer rate GSM service), PHS (Personal Handy-phone System, personal handhold telephone system) standard, CDMA (Code-Division Multiple Access, code division multiple access) 95/20001X, EVDO (Evolution Data Only, evolution data only), WCDMA (Wideband Code Division Multiple Access, Wideband Code Division Multiple Access (WCDMA))/HSDPA (High Speed Downlink Packet Access, the high speed downlink packet access)/HSUPA (High Speed Uplink Packet Access, the high speed uplink packet access) standard and TD-SCDMA (TD SDMA access), WiMax (Worldwide Interoperability for Microwave Access, the worldwide interoperability for microwave access), LTE (Long Term Evolution, Long Term Evolution) standard etc.Multi-module mobile terminal is to have complied with the demand in market and development and a kind of product of occurring, and nowadays, it has been the indispensable part in one, market of whole mobile terminal consumption.
In addition, along with the rolling up of cellphone subscriber, electromagnetic radiation more and more causes people's concern on the impact of health in recent years.When the microwave signal power of absorption of human body surpasses a threshold value, can produce harmful effect to organs such as nervous system, blood and immune system, crystalline lenses.Specific absorption rate is that SAR (Specific Absorption Rate) value is to weigh wireless product to the important indicator of human body radiation impact, the committee of united telecommunication (FCC) clear various wireless terminals be the SAR of the maximum that allows interacting with human body.FCC also stipulates, the SAR of the mobile terminal of speech pattern should measure when close human brain one side of mobile terminal, the mobile terminal of data pattern such as data card, PAD (Personal Digital Assistant, personal digital assistant) etc. must measure on antenna four faces nearby.That is to say, mobile terminal, especially mode of operation are the mobile terminal of data pattern, and the design aspect SAR has proposed very high requirement.
Multi-module mobile terminal is in order to support simultaneously multi-modulation scheme on a mobile terminal product, generally have many transmit antennas in design process, the transmission situation simultaneously that also has between this multiple transmit antennas exists, so multi-module mobile terminal is mobile terminal such as the products such as data card, PAD of data pattern especially, it is relatively stubborn problem of industry that its SAR value exceeds standard always, how in the miniaturization of wireless multi-mode mobile terminal and guarantee that it satisfies the problem that the human body Electromagnetic Radiation Standards has been become industry a major challenge in the urgent need to address in wireless.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of method of adjusting antenna transmission power and device, mobile terminal, to reduce specific absorption rate.
In order to solve the problems of the technologies described above, the invention provides a kind of method of adjusting antenna transmission power, comprising:
The distance of mobile terminal induction human body and an antenna or a plurality of antennas;
Adjust the transmitting power of respective antenna according to described distance.
Further, said method also has following characteristics: the described transmitting power of adjusting respective antenna according to described distance comprises:
Described mobile terminal is converted into default state information with described distance;
Obtain the emitting power grade parameter corresponding with this state information that presets;
Adjust the transmitting power of respective antenna according to described emitting power grade parameter, the emitting power grade of the nearlyer correspondence of described distance is lower.
Further, said method also has following characteristics: the described transmitting power of adjusting respective antenna according to described distance realizes under condition below:
Described mobile terminal is in the network state of the communication standard corresponding with described antenna.
Further, said method also has following characteristics: described communication standard comprises:
Global system for mobile communications standard (GSM), GPRS standard, improvement data transfer rate GSM service standard, personal handhold telephone system standard, code division multiple access standard, Wideband Code Division Multiple Access (WCDMA) standard, high speed downlink packet access standard, high speed uplink packet access standard, TD SDMA access standard, worldwide interoperability for microwave access standard, LTE standard, WIFI standard or bluetooth standard.
In order to address the above problem, the present invention also provides a kind of device of adjusting antenna transmission power, comprising:
Anneta module comprises an antenna or a plurality of antenna, and described antenna configuration has induction module, and described induction module is for the distance of induction human body and respective antenna;
Processing module is for adjust the transmitting power of respective antenna according to described distance.
Further, said apparatus also has following characteristics: also comprise:
Chip module is used for the storage state information corresponding with antenna and the corresponding relation of emitting power grade parameter;
Described processing module comprises:
First module is used for described distance is converted into default state information;
Second unit is used for obtaining the emitting power grade parameter of respective antenna to described chip module according to the state information that first module transforms;
Unit the 3rd, for adjust the transmitting power of respective antenna according to described emitting power grade parameter, the emitting power grade of the nearlyer correspondence of described distance is lower.
Further, said apparatus also has following characteristics: also comprise:
Monitor module, be used for monitoring the network state which kind of communication standard the affiliated mobile terminal of this device is in, the network state information that listens to is sent to described chip module;
Described chip module, in the situation that described second unit acquisition request emitting power grade, if be in the network state of the communication standard of second unit request respective antenna according to the described mobile terminal of described network state information judgement, the emitting power grade parameter that the second unit request is corresponding sends to second unit.
Further, said apparatus also has following characteristics: described communication standard comprises with lower one or more:
Global system for mobile communications standard (GSM), GPRS standard, improvement data transfer rate GSM service standard, personal handhold telephone system standard, code division multiple access standard, Wideband Code Division Multiple Access (WCDMA) standard, high speed downlink packet access standard, high speed uplink packet access standard, TD SDMA access standard, worldwide interoperability for microwave access standard, LTE standard, WIFI standard and bluetooth communication standard.
Further, said apparatus also has following characteristics: described induction module comprises induction coil.
In order to address the above problem, the present invention also provides a kind of mobile terminal, comprises above-mentioned device.
The invention provides a kind of method of adjusting antenna transmission power and device, mobile terminal, the transmitting power that can automatically regulate terminal antenna by the distance size of human body and mobile terminal is to reach the purpose of reduction specific absorption rate.
Description of drawings
Fig. 1 is the schematic diagram of device of the adjustment antenna transmission power of the embodiment of the present invention;
Fig. 2 is the schematic diagram of device of the adjustment antenna transmission power of the embodiment of the present invention one;
Fig. 3 is the schematic diagram of device of the adjustment antenna transmission power of the embodiment of the present invention two;
Fig. 4 is the schematic diagram of device of the adjustment antenna transmission power of the embodiment of the present invention three;
Fig. 5 is the schematic diagram of device of the adjustment antenna transmission power of the embodiment of the present invention four;
Fig. 6 is the schematic diagram of device of the adjustment antenna transmission power of the embodiment of the present invention five;
Fig. 7 is the flow chart of method of the adjustment antenna transmission power of the embodiment of the present invention;
Fig. 8 is the flow chart of method of the adjustment antenna transmission power of another embodiment of the present invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, hereinafter in connection with accompanying drawing, embodiments of the invention are elaborated.Need to prove, in the situation that do not conflict, the embodiment in the application and the feature in embodiment be combination in any mutually.
Fig. 1 is the schematic diagram of device of the adjustment antenna transmission power of the embodiment of the present invention, and as shown in Figure 1, the device of the present embodiment comprises:
Anneta module comprises an antenna or a plurality of antenna, and described antenna configuration has induction module, and described induction module is for the distance of induction human body and respective antenna;
Processing module is for adjust the transmitting power of respective antenna according to described distance.
Wherein, described Anneta module comprises one of single antenna, double antenna or many antenna forms, can be namely that several communication standards share an antenna, or each communication standard is respectively with an antenna.
Wherein, can configure respectively an induction module near each antenna, can be also for the common configuration of a plurality of antennas one induction module, is used for responding to the close of human body.
Wherein, described induction module can comprise an induction coil, and is far and near according to distance between this induction coil and human body, and the inductance capacitance value that draws is different, thereby draws different sense state, sense state can be divided into N different state, and N is greater than 2.
Wherein, the device of the present embodiment also comprises:
Chip module is used for the storage state information corresponding with antenna and the corresponding relation of emitting power grade parameter;
Described processing module comprises:
First module is used for described distance is converted into default state information;
Second unit is used for obtaining the emitting power grade parameter of respective antenna to described chip module according to the state information that first module transforms;
Unit the 3rd, for adjust the transmitting power of respective antenna according to described emitting power grade parameter, the emitting power grade of the nearlyer correspondence of described distance is lower.
In a preferred embodiment, described device can also comprise:
Monitor module, be used for monitoring the network state which kind of communication standard the affiliated mobile terminal of this device is in, the network state information that listens to is sent to described chip module;
Described chip module, in the situation that described second unit acquisition request emitting power grade, if be in the communication standard network state of second unit request respective antenna according to the described mobile terminal of described network state information judgement, the emitting power grade parameter that the second unit request is corresponding sends to second unit.
Described communication standard comprises: GSM/GPRS/EDGE, CDMA 1X/EVDO, WCDMA/HSDPA/HSUPA standard and TD-SCDMA, WiMax, LTE standard, WIFI (Wireless Fidelity, WLAN (wireless local area network)) standard, bluetooth communication standard etc.
The embodiment of the present invention also provides a kind of mobile terminal, and this mobile terminal comprises the device of above-mentioned adjustment antenna transmission power.
Adopt device and the mobile terminal of the adjustment antenna transmission power of the embodiment of the present invention, can adjust antenna transmission power according to the distance of mobile terminal and human body in real time, in the process of human body approach mobile terminal, by reducing antenna transmission power and then reducing its corresponding specific absorption rate, thereby it has guaranteed its wireless performance and has effectively solved the SAR problem of multi-module mobile terminal on the basis of the multi-service needs that satisfy operator and client and miniaturization.
Describe below in conjunction with device and the mobile terminal of accompanying drawing to the adjustment antenna transmission power of the embodiment of the present invention, the below does to set forth further as an example of the device of the adjustment antenna transmission power that comprises CDMA1X/EVDO and LTE standard and mobile terminal example.
Fig. 2 is the schematic diagram of device of the adjustment antenna transmission power of the embodiment of the present invention one.The device of the adjustment antenna transmission power of the present embodiment comprises: Anneta module 101, SAR processing module 102, SAR monitor module 103, CDMA1X/EVDO RF front-end module 104, LTE RF front-end module 105 and CDMA/LTE radio frequency single chip module 106.
Wherein, Anneta module 101 comprises a CDMA1X/EVDO dual-mode antenna, and a LTE dual-mode antenna, CDMA1X/EVDO dual-mode antenna are used for receiving or emission CDMA1X/EVDO signal, and the LTE dual-mode antenna is used for receiving or emission LTE signal.
SAR monitors module 103 and is used for real-time listening and is in which network state mobile terminal is in or whether network state switches variation etc.
CDMA1X/EVDO RF front-end module 104 is used for the transmitting-receiving radiofrequency signal work for the treatment of of CDMA1X/EVDO, has comprised CDMA1X/EVDO radio frequency receiving and transmitting front end circuit etc.
LTE RF front-end module 105 is used for the transmitting-receiving radiofrequency signal work for the treatment of of LTE, has comprised LTE radio frequency receiving and transmitting front end circuit etc.
Radio frequency single chip module 106 is except being used for the processing of CDMA1X/EVDO and LTE radiofrequency signal, the parameters of N control master chip CDMA and LTE transmitting power is also deposited in its inside, these parameters respectively with Anneta module 101 in human body sensing device N state information corresponding.Radio frequency single chip module 106 monitors the next current network state of module 103 feedbacks by contrast SAR and SAR processing module 102 is fed back the aerial information that human body approached of coming, and determines whether to allow SAR processing module 102 to call the parameter that these control the master chip emitting power grade.
The operation principle of the device of the adjustment antenna transmission power of the present embodiment is as described below:
At first, when in human body approach Anneta module 101 during the CDMA1X/EVDO dual-mode antenna, CDMA1X/EVDO human body sensing device in Anneta module 101 is sensed the close of human body, and can in-plant distance attached according to the human body approach antenna, divide into different state informations, then Anneta module 101 by port one 012 in real time with different status information feedbacks to SAR processing module 102.
The port one 021 of SAR processing module 102 is connected with the port one 012 of Anneta module 101, N the state information that SAR processing module 102 is come by the CDMA1X/EVDO human body sensing device feedback that in port one 021 reading antenna module 101,1012 ports are corresponding.According to this N different state information, transfer N parameter of radio frequency single chip module 106 the insides control master chip CDMA or LTE transmitting power again.
secondly, 1023 ports of SAR processing module 102 are connected with 1032 ports that SAR monitors module 103, 1031 ports that SAR monitors module 103 are connected with the CDMA1X/EVDO radio frequency path, by 1031 ports, SAR monitors module 103 and can listen to and be in mobile terminal and whether be in the CDMA1X/EVDO network state, be in mobile terminal and be in the CDMA1X/EVDO network state if listen to, SAR monitoring module 103 feeds back to radio frequency single chip module 106 by port one 034, radio frequency single chip module 106 determines whether to allow front SAR processing module 102 to transfer and is separately positioned on the parameter of transmitting power of the CDMA1X/EVDO of CDMA/LTE radio frequency single chip module 106 the insides accordingly, these parameters are corresponding N different emitting power grade respectively, thereby reached the purpose that reduces specific absorption rate.
For example, when there is no human body approach, the transmitting power of antenna is maximum, CDMA, and about the general 24dB of transmitting power, specific absorption rate is also just maximum, and is maximum to human body radiation.
For example, in-plant distance attached according to the human body approach antenna, divide into 3 different state informations, namely setting N is 3, be respectively human body apart from antenna be more than 20 centimetres/10 centimetres to 20 centimetres between/lower than 10 centimetres, to with state 1,2,3, set corresponding transmitting power and be respectively 23dB/19dB/17dB respectively.Distance is nearer, and corresponding transmitting power is lower.According to the distance of human body approach, thereby reduce the transmitting power of master chip, the transmitting power of antenna is also along with reduction, thereby reached the purpose that reduces specific absorption rate.
When the human body approach antenna, if the distance of sensing is between 10 centimetres to 20 centimetres, transmitting power is reduced to 19dB (before about general 24dB), thereby has reached the purpose that reduces specific absorption rate.
If listening to, SAR monitoring module 103 is in mobile terminal not in the CDMA1X/EVDO network state, SAR monitors module 103 by port one 034 feedback radio frequency single chip module 106, radio frequency single chip module 106 is not enabled the request of transferring N parameter controlling master chip CDMA or LTE transmitting power that SAR processing module 102 feedbacks are come, no matter CDMA or LTE, all do not reduce the specific absorption rate action.
Equally, when in human body approach Anneta module 101 during the LTE dual-mode antenna, LTE human body sensing device in Anneta module 101 is sensed the close of human body, and can in-plant distance attached according to the human body approach antenna, divide into N different state information, then Anneta module 101 by port one 013 with this N different status information feedback to SAR processing module 102.
The port one 022 of SAR processing module 102 is connected with the port one 013 of Anneta module 101, and SAR processing module 102 feeds back N state information by LTE human body sensing device corresponding to 1013 ports in port one 022 reading antenna module 101.According to this N different state information, transfer N parameter of radio frequency single chip module 106 the insides control master chip CDMA or LTE transmitting power again.
Secondly, 1023 ports of SAR processing module 102 are connected with 1032 ports that SAR monitors module 103,1033 ports that SAR monitors module 103 are connected with the LTE radio frequency path, and by 1033 ports, SAR monitoring module 103 can listen to and be in mobile terminal and whether be in the LTE network state.Be in mobile terminal and be in the LTE network state if listen to, SAR monitors module 103 by port one 034 feedback radio frequency single chip module 106, radio frequency single chip module 106 determines whether to allow front S AR processing module 102 to transfer and is separately positioned on the parameter of transmitting power of the LTE of CDMA/LTE radio frequency single chip module 106 the insides accordingly, these parameters are corresponding N different emitting power grade respectively, thereby reached the purpose that reduces specific absorption rate.
If listening to, SAR monitoring module 103 is in mobile terminal not in the LTE network state, SAR monitors module 103 by port one 034 feedback radio frequency single chip module 106, radio frequency single chip module 106 is not enabled the request of transferring N parameter controlling master chip CDMA or LTE transmitting power that SAR processing module 102 feedbacks are come, no matter CDMA or LTE, all do not reduce the specific absorption rate action.
Further, as a kind of preferred version, when human body during simultaneously near CDMA1X/EVDO dual-mode antenna in Anneta module 101 and LTE dual-mode antenna, if SAR monitoring module 103 listens to mobile terminal and only is in the CDMA1X/EVDO network state, only transfer the parameter of the transmitting power of the corresponding CDMA1X/EVDO that is arranged on CDMA/LTE radio frequency single chip module 106 the insides, only reduce CDMA1X/EVDO network electromagnetic wave energy absorptance; If SAR monitors module 103 and listens to mobile terminal and only be in the LTE network state, only transfer the parameter of the transmitting power of the corresponding LTE that is arranged on CDMA/LTE radio frequency single chip module 106 the insides, only reduce LTE network electromagnetic wave energy absorptance; If SAR monitoring module 103 listens to mobile terminal and is in simultaneously CDMA1X/EVDO network state and LTE network state, transfer simultaneously the parameter of the transmitting power of the corresponding CDMA1X/EVDO that is arranged on CDMA/LTE radio frequency single chip module 106 the insides and LTE, reduce simultaneously CDMA1X/EVDO and LTE network electromagnetic wave energy absorptance;
Further, as a kind of preferred version, when human body approach Anneta module 101, SAR monitors module 103 needs startup always and real-time listening whether to be in this network state.
Fig. 3 is the schematic diagram of device of the adjustment antenna transmission power of the embodiment of the present invention two.Compare with embodiment one, its CDMA1X/EVDO and LTE radio frequency chip module the 206, the 207th, independently, the SAR processing module 202,203 of its CDMA1X/EVDO and LTE is also independently.This device is monitored module without SAR, can realize the reduction specific absorption rate of CDMA1X/EVDO and LTE.
CDMA radio frequency chip module 206 is except being used for the processing of CDMA1X/EVDO radiofrequency signal, N parameter controlling master chip CDMA transmitting power also deposited in its inside, these parameters respectively from Anneta module 201 in the CDMA1X/EVDO human body sensing device the individual different state information of N corresponding.LTE radio frequency chip module 207 is except being used for the processing of LTE radiofrequency signal, and N parameter controlling master chip LTE transmitting power also deposited in its inside, these parameters respectively from Anneta module 201 in the LTE human body sensing device the individual different state information of N corresponding.
When in human body approach Anneta module 201 during the CDMA1X/EVDO dual-mode antenna, CDMA1X/EVDO human body sensing device in Anneta module 201 is sensed the close of human body, and can in-plant distance attached according to the human body approach antenna, divide into N different state information, then Anneta module 201 by port 2012 with this N different status information feedback to SAR processing module 202.
The state information that SAR processing module 202 is different according to these is transferred the parameter of the transmitting power of the CDMA1X/EVDO that is arranged on CDMA radio frequency chip module 206 the insides, these parameters are corresponding N different emitting power grade respectively, thereby reached the purpose that reduces specific absorption rate.
This embodiment compares with embodiment one, and its CDMA1X/EVDO radio frequency chip module 206 is independently with LTE radio frequency chip module 207, and the SAR processing module 202,203 of its CDMA1X/EVDO and LTE is also independently.This device is monitored module without SAR, can realize reduction specific absorption rate and the CDMA1X/EVDO of CDMA1X/EVDO and LTE.
When in human body approach Anneta module 201 during the LTE dual-mode antenna, LTE human body sensing device in Anneta module 201 is sensed the close of human body, and can in-plant distance attached according to the human body approach antenna, divide into N different state information, then Anneta module 201 by port 2013 with this N different status information feedback to SAR processing module 203.
The state information that SAR processing module 203 is different according to these is transferred the parameter of the transmitting power of the LTE that is arranged on LTE radio frequency chip module 207 the insides, these parameters are corresponding N different emitting power grade respectively, thereby reached the purpose that reduces specific absorption rate.
Fig. 4 is the schematic diagram of device of the adjustment antenna transmission power of the embodiment of the present invention three, embodiment one compares, the present embodiment is on the basis of embodiment one, increase a WIFI antenna and WIFI human body sensing device, increased a WIFI radio frequency chip module 307 at Anneta module 301, made multi-module mobile terminal possess the function that reduces the WIFI specific absorption rate.
In addition, the WIFI antenna is used for receiving or emission WIFI signal.The WIFI human body sensing device is placed near the WIFI antenna, and it is used for responding near the close of the human body of WIFI antenna.
When in human body approach Anneta module 301 during the WIFI antenna, WIFI human body sensing device in Anneta module 301 is sensed the close of human body, and can in-plant distance attached according to the human body approach antenna, divide into N different state information, then Anneta module 301 passes through port 3015 status information feedback that these are different to SAR processing module 302.
The port 3024 of SAR processing module 302 is connected with the port 3015 of Anneta module 301, SAR processing module 302 is come different state informations by the WIFI human body sensing device feedback that in port 3024 reading antenna modules 301,3015 ports are corresponding, transfer the parameter of the transmitting power of the WIFI that is separately positioned on WIFI radio frequency chip module 307 the insides, these parameters are corresponding N different emitting power grade respectively, thereby reached the purpose that reduces specific absorption rate.
Further, as a kind of preferred version, WIFI antenna in Anneta module 301 is supported the emission of 2.4G frequency range and 5G frequency range, or 2.4G frequency range and 5G frequency range one of them.
Fig. 5 is the schematic diagram of device of the adjustment antenna transmission power of the embodiment of the present invention four, compare with embodiment one, this real embodiment is on the basis of embodiment one, increase a Bluetooth antenna and bluetooth human body sensing device, increased a Bluetooth RF chip module 407 at Anneta module 401, made multi-module mobile terminal possess the function that reduces the bluetooth specific absorption rate.
Wherein, Bluetooth antenna is used for receiving or the emission Bluetooth signal.The bluetooth human body sensing device is placed near Bluetooth antenna, and it is used for responding near the close of the human body of Bluetooth antenna.
When in human body approach Anneta module 401 during Bluetooth antenna, bluetooth human body sensing device in Anneta module 401 is sensed the close of human body, and can in-plant distance attached according to the human body approach antenna, divide into N different state information, then Anneta module 401 passes through port 4015 status information feedback that these are different to SAR processing module 402.
The port 4024 of SAR processing module 402 is connected with the port 4015 of Anneta module 401, SAR processing module 402 feeds back N different state information by bluetooth human body sensing device corresponding to 4015 ports in port 4024 reading antenna modules 401, transfer the parameter of the transmitting power of the bluetooth that is separately positioned on Bluetooth RF chip module 407 the insides, these parameters are corresponding N different Bluetooth transmission power grade respectively, thereby reached the purpose that reduces specific absorption rate.
Fig. 6 is the schematic diagram of device of the adjustment antenna transmission power of the embodiment of the present invention five, the device of the present embodiment only has an antenna, as shown in Figure 6, SAR processing module 602 is connected with human body sensing device in Anneta module 601, be used for reading N the different conditions information that Anneta module 601 human body sensing device feedbacks are come, according to this N different state information, transfer N parameter of radio frequency chip module 604 the insides control master chip transmitting powers again.Radio frequency chip module 604 is except being used for the processing of radiofrequency signal, and N parameter controlling the master chip transmitting power also deposited in its inside, these parameters respectively from Anneta module 601 in human body sensing device the individual different state information of N corresponding.
When in human body approach Anneta module 601 during dual-mode antenna, human body sensing device in Anneta module 601 is sensed the close of human body, and can in-plant distance attached according to the human body approach antenna, divide into N different state information, then Anneta module 601 by port 6012 with this N different status information feedback to SAR processing module 602.
The state information that SAR processing module 602 is different according to these is transferred the parameter of the transmitting power that is arranged on radio frequency chip module 604 the insides, these parameters are corresponding N different emitting power grade respectively, thereby reached the purpose that reduces specific absorption rate, can realize the reduction specific absorption rate of single mode mobile terminal.
Fig. 7 is the flow chart of method of the adjustment antenna transmission power of the embodiment of the present invention, and as shown in Figure 7, the method for the present embodiment comprises following step:
The distance of S10, mobile terminal induction human body and an antenna or a plurality of antennas;
S20, adjust the transmitting power of respective antenna according to described distance.
Below in conjunction with the device of the adjustment antenna transmission power of Fig. 2, the method for the present embodiment is further elaborated.To reduce CDMA1X/EVDO antenna specific absorption rate as example, as shown in Figure 8, its workflow mainly is divided into following step:
Being close to antenna such as, human body is human body when being 0 centimetre apart from antenna, and state is 1; When human body was 50 centimetres apart from antenna, state was 8; Be 0 centimetre to 50 centimetres from human body apart from antenna, the centre is divided into 6 states, and these states are a corresponding emitting power grade parameter respectively, and the emitting power grade that the state of the lower correspondence of distance is corresponding is lower.
After step 103, radio frequency master chip are received this request, wake SAR up and monitor module.SAR monitors module the residing network state of the mobile terminal that listens to is fed back to the radio frequency single-chip.
If step 104 listens to mobile terminal not in the CDMA1X/EVDO network state, the radio frequency master chip does not allow the SAR processing module to transfer to be arranged on the parameter of transmitting power of the CDMA1X/EVDO of its inside, then wakes SAR up and monitors module and continue repeatedly real-time listening and whether be in the CDMA1X/EVDO network state;
Step 105 is until listen to mobile terminal in the CDMA1X/EVDO network state, the radio frequency master chip permits the SAR processing module to transfer the parameter of the transmitting power of the CDMA1X/EVDO that is arranged on its inside, these parameters are corresponding N different emitting power grade respectively, thereby reach the purpose that reduces specific absorption rate, flow process finishes.
One of ordinary skill in the art will appreciate that all or part of step in said method can come the instruction related hardware to complete by program, described program can be stored in computer-readable recording medium, as read-only memory, disk or CD etc.Alternatively, all or part of step of above-described embodiment also can realize with one or more integrated circuits.Correspondingly, each the module/unit in above-described embodiment can adopt the form of hardware to realize, also can adopt the form of software function module to realize.The present invention is not restricted to the combination of the hardware and software of any particular form.
These are only the preferred embodiments of the present invention; certainly; the present invention also can have other various embodiments; in the situation that do not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make according to the present invention various corresponding changes and distortion, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (10)
1. method of adjusting antenna transmission power comprises:
The distance of mobile terminal induction human body and an antenna or a plurality of antennas;
Adjust the transmitting power of respective antenna according to described distance.
2. the method for claim 1 is characterized in that: the described transmitting power of adjusting respective antenna according to described distance comprises:
Described mobile terminal is converted into default state information with described distance;
Obtain the emitting power grade parameter corresponding with this state information that presets;
Adjust the transmitting power of respective antenna according to described emitting power grade parameter, the emitting power grade of the nearlyer correspondence of described distance is lower.
3. method as claimed in claim 1 or 2 is characterized in that: the described transmitting power of adjusting respective antenna according to described distance realizes under condition below:
Described mobile terminal is in the network state of the communication standard corresponding with described antenna.
4. method as claimed in claim 3, it is characterized in that: described communication standard comprises:
Global system for mobile communications standard (GSM), GPRS standard, improvement data transfer rate GSM service standard, personal handhold telephone system standard, code division multiple access standard, Wideband Code Division Multiple Access (WCDMA) standard, high speed downlink packet access standard, high speed uplink packet access standard, TD SDMA access standard, worldwide interoperability for microwave access standard, LTE standard, WIFI standard or bluetooth standard.
5. device of adjusting antenna transmission power comprises:
Anneta module comprises an antenna or a plurality of antenna, and described antenna configuration has induction module, and described induction module is for the distance of induction human body and respective antenna;
Processing module is for adjust the transmitting power of respective antenna according to described distance.
6. device as claimed in claim 5 is characterized in that: also comprise:
Chip module is used for the storage state information corresponding with antenna and the corresponding relation of emitting power grade parameter;
Described processing module comprises:
First module is used for described distance is converted into default state information;
Second unit is used for obtaining the emitting power grade parameter of respective antenna to described chip module according to the state information that first module transforms;
Unit the 3rd, for adjust the transmitting power of respective antenna according to described emitting power grade parameter, the emitting power grade of the nearlyer correspondence of described distance is lower.
7. device as claimed in claim 6 is characterized in that: also comprise:
Monitor module, be used for monitoring the network state which kind of communication standard the affiliated mobile terminal of this device is in, the network state information that listens to is sent to described chip module;
Described chip module, in the situation that described second unit acquisition request emitting power grade, if be in the network state of the communication standard of second unit request respective antenna according to the described mobile terminal of described network state information judgement, the emitting power grade parameter that the second unit request is corresponding sends to second unit.
8. device as claimed in claim 7 is characterized in that: described communication standard comprises with lower one or more:
Global system for mobile communications standard (GSM), GPRS standard, improvement data transfer rate GSM service standard, personal handhold telephone system standard, code division multiple access standard, Wideband Code Division Multiple Access (WCDMA) standard, high speed downlink packet access standard, high speed uplink packet access standard, TD SDMA access standard, worldwide interoperability for microwave access standard, LTE standard, WIFI standard and bluetooth communication standard.
9. as the described device of claim 5-8 any one, it is characterized in that:
Described induction module comprises induction coil.
10. a mobile terminal, comprise as the described device of claim 5-9 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110434703.1A CN103179653B (en) | 2011-12-22 | 2011-12-22 | It is a kind of to adjust the method and device of antenna transmission power, mobile terminal |
Applications Claiming Priority (1)
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