CN104812102A - Radio communication apparatus - Google Patents
Radio communication apparatus Download PDFInfo
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- CN104812102A CN104812102A CN201410034651.2A CN201410034651A CN104812102A CN 104812102 A CN104812102 A CN 104812102A CN 201410034651 A CN201410034651 A CN 201410034651A CN 104812102 A CN104812102 A CN 104812102A
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- wifi
- signal
- power amplifier
- radio communication
- processing unit
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- 238000004891 communication Methods 0.000 title claims abstract description 42
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention provides a radio communication apparatus. The radio communication apparatus comprises a WIFI antenna, a power amplifier, a WIFI transceiving chip, a central processor and a power management chip, wherein the WIFI antenna is used for transceiving WIFI signals, the power amplifier is electrically connected between the WIFI antenna and the WIFI transceiving chip, the WIFI transceiving chip is electrically connected with the WIFI antenna for detecting the receiving signal intensity of current WIFI signals of the WIFI antenna, the WIFI transceiving chip is electrically connected with the central processor for transmitting the detected receiving signal intensity to the central processor, and the central processor is used for controlling the power management chip to output voltage signals according to the receiving signal intensity, which are transmitted by the WIFI transceiving chip, of the WIFI signals, and further controlling the gain of the power amplifier through the voltage signals. The radio communication apparatus can effectively adjust the emission power of the WIFI antenna.
Description
Technical field
The present invention relates to a kind of radio communication device, especially and one there is the radio communication device of Wireless Fidelity (wireless fidelity, WIFI) communication function.
Background technology
Current, WIFI antenna has become the standard configuration of intelligent wireless communication terminal, and user can realize the functions such as online, video by WIFI antenna.But existing WIFI antenna mostly can not adjust transmitting power, when WIFI length of antenna's time service, often there is the phenomenon of generating heat in intelligent wireless communication terminal, and causes battery electric quantity sharply to decline.
Summary of the invention
In view of above content, be necessary to provide a kind of radio communication device that can adjust WIFI antenna transmission power.
A kind of radio communication device, it comprises WIFI antenna, power amplifier, WIFI transceiving chip, central processing unit and power management chip, this WIFI antenna is for receiving and dispatching WIFI signal, this power amplifier is electrically connected between WIFI antenna and WIFI transceiving chip, this WIFI transceiving chip and WIFI antenna are electrically connected, for detecting the received signal strength of the current WIFI signal of WIFI antenna, this WIFI transceiving chip and central processing unit are electrically connected, the received signal strength of detecting is passed to central processing unit, the received signal strength that this central processing unit is used for the WIFI signal transmitted according to WIFI transceiving chip controls output voltage of power management chip signal, and the gain of power amplifier is controlled further by this voltage signal.
A kind of radio communication device, it comprises WIFI antenna, power amplifier, WIFI transceiving chip, central processing unit and power management chip, this WIFI antenna is for receiving and dispatching WIFI signal, this power amplifier is electrically connected between WIFI antenna and WIFI transceiving chip, this WIFI transceiving chip and WIFI antenna are electrically connected, for detecting the received signal strength of the current WIFI signal of WIFI antenna, this WIFI transceiving chip and central processing unit are electrically connected, the received signal strength of detecting is passed to central processing unit, the received signal strength that this central processing unit is used for the WIFI signal transmitted according to WIFI transceiving chip controls power management chip, and the gain of power amplifier is controlled by this power management chip, when the received signal strength of WIFI signal is higher, the voltage signal that central processing unit controls power management chip output is lower, the gain of power amplifier is lower, when the received signal strength of WIFI signal is lower, the voltage signal that central processing unit controls power management chip output is higher, and the gain of power amplifier is higher.
The WIFI transceiving chip of above-mentioned radio communication device detects current received signal strength, and central processing unit controls the output voltage of power management chip, to control the gain of power amplifier further according to this received signal strength.So, this radio communication device can adjust total transmitting power in different signal transmitting and receiving environment, and radio communication device can be avoided because of Long-Time Service to occur the phenomenon of generating heat, battery electric quantity sharply declines.
Accompanying drawing explanation
Fig. 1 is the functional block diagram of the radio communication device of present pre-ferred embodiments.
Main element symbol description
| Radio communication device | 100 |
| WIFI antenna | 10 |
| Duplexer | 20 |
| Power amplifier | 30 |
| WIFI transceiving chip | 40 |
| Central processing unit | 50 |
| Power management chip | 60 |
Following embodiment will further illustrate the present invention in conjunction with above-mentioned accompanying drawing.
Embodiment
Refer to Fig. 1, preferred embodiment of the present invention provides a kind of radio communication device 100, and it can be the electronic equipment that mobile phone, personal digital assistant (PDA), panel computer etc. have WIFI communication function.
This radio communication device 100 comprises WIFI antenna 10, duplexer 20, power amplifier 30, WIFI transceiving chip 40, central processing unit 50 and power management chip (Power Management Integrated Circuit, PMIC) 60.
WIFI signal for receiving WIFI signal from wireless router or other similar devices, and is sent to wireless router or other similar devices by this WIFI antenna 10.
This duplexer 20 for by the signal transmission path of WIFI signal and Signal reception path isolated, it is electrically connected between WIFI antenna 10 and WIFI transceiving chip 40, and the WIFI signal for being received by WIFI antenna 10 is sent to WIFI transceiving chip 40.Meanwhile, this duplexer 20 is also electrically connected between WIFI antenna 10 and power amplifier 30, for the WIFI signal after being amplified by power amplifier 30 is sent to WIFI antenna 10.
This power amplifier 30 is electrically connected between duplexer 20 and WIFI transceiving chip 40, for amplifying the WIFI signal transmitted by WIFI transceiving chip 40.In the present embodiment, this power amplifier 30 is linear power amplifier.
This WIFI transceiving chip 40 is electrically connected with central processing unit 50, this WIFI transceiving chip 40 detects received signal strength (the Received Signal Strength Indication of current WIFI signal for the WIFI signal transmitted according to duplexer 20, and the received signal strength of this WIFI signal is sent to central processing unit 50 RSSI).In the present embodiment, the scope of this received signal strength is about-60dB to-80dB.
This WIFI transceiving chip 40 also for modulating/demodulating WIFI signal, i.e. the WIFI signal that transmitted by duplexer 20 of demodulation, and modulate WIFI signal to be sent to power amplifier 30.
This central processing unit 50 controls the output voltage of power management chip 60 for the received signal strength of WIFI signal transmitted according to WIFI transceiving chip 40.Concrete, received signal strength is converted to digital signal by analog-to-digital conversion (ADC) by this central processing unit 50, and according to this digital signal to power management chip 60 output pulse width modulation signal (" Pulse Width Modulation, PWM).
This power management chip 60 is electrically connected between central processing unit 50 and power amplifier 30, for the pulse width modulating signal output voltage signal exported according to central processing unit 50, to control the gain of power amplifier 30.Concrete, such as, when received signal strength is-80 dB, central processing unit 50 exports the first pulse width modulating signal, and power management chip 60 exports the voltage of 3.0V; When received signal strength is-75 dB, central processing unit 50 exports the second pulse width modulating signal, and power management chip 60 exports the voltage of 2.5V; When received signal strength is-70 dB, central processing unit 50 exports the 3rd pulse width modulating signal, and power management chip 60 exports the voltage of 2.0V; When received signal strength is-65 dB, central processing unit 50 exports the 4th pulse width modulating signal, and power management chip 60 exports the voltage of 1.5V; When received signal strength is-60 dB, central processing unit 50 exports the 5th pulse width modulating signal, and power management chip 60 exports the voltage of 1.0V.
Because power amplifier 30 is linear power amplifier, when the voltage signal that power management chip 60 exports is higher, the gain of power amplifier 30 is larger; Otherwise when the voltage signal that power management chip 60 exports is lower, the gain of power amplifier 30 is less.Such as, the voltage exported when power management chip 60 is respectively 3V, and when 2.5V, 2V, 1.5V, 1.0V, the gain of power amplifier 30 is respectively 20dB, 15dB, 10dB, 5dB and 0dB.
The using method of this radio communication device 100 is described below in two kinds of situation.
The first, when radio communication device 100 is in high field environment, such as, this radio communication device 100 and wireless router near time, the received signal strength of its WIFI signal is higher (being such as-60dB).Now, the received signal strength of the WIFI signal detected is sent to central processing unit 50 by WIFI transceiving chip 40.The output pulse width modulation signal of central processing unit 50 correspondence, power management chip 60 is according to this pulse width modulating signal output voltage signal.Because received signal strength is higher, the voltage signal that power management chip 60 exports is lower, and the gain of power amplifier 30 reduces immediately.
The second, when radio communication device 100 is in feeble field environment, such as, when this radio communication device 100 is distant with wireless router, the received signal strength of its WIFI signal is lower (being such as-80dB).Now, the received signal strength of the WIFI signal detected is sent to central processing unit 50 by WIFI transceiving chip 40.The output pulse width modulation signal of central processing unit 50 correspondence, power management chip 60 is according to this pulse width modulating signal output voltage signal.Because received signal strength is lower, the voltage signal that power management chip 60 exports is higher, and the gain of power amplifier 30 raises immediately.
From above-mentioned two situations, when the received signal strength of WIFI signal is higher, the gain of power amplifier 30 is lower, to use lower total transmitting power in preferably signal transmitting and receiving environment; And when the received signal strength of WIFI signal is lower, the gain of power amplifier 30 is higher, to use higher total transmitting power in poor signal transmitting and receiving environment.
Be appreciated that above-mentioned duplexer 20 also can substitute for sending/receiving (TR) transducer.
The WIFI transceiving chip 40 of radio communication device 100 of the present invention detects current received signal strength, and central processing unit 50 controls the output voltage of power management chip 60, to control the gain of power amplifier 30 further according to this received signal strength.So, this radio communication device 100 can adjust total transmitting power in different signal transmitting and receiving environment, and radio communication device 100 can be avoided because of Long-Time Service to occur the phenomenon of generating heat, battery electric quantity sharply declines.
Claims (10)
1. a radio communication device, it comprises WIFI antenna, for receiving and dispatching WIFI signal, it is characterized in that: this radio communication device also comprises power amplifier, WIFI transceiving chip, central processing unit and power management chip, this power amplifier is electrically connected between WIFI antenna and WIFI transceiving chip, this WIFI transceiving chip and WIFI antenna are electrically connected, for detecting the received signal strength of the current WIFI signal of WIFI antenna, this WIFI transceiving chip and central processing unit are electrically connected, the received signal strength of detecting is passed to central processing unit, the received signal strength that this central processing unit is used for the WIFI signal transmitted according to WIFI transceiving chip controls output voltage of power management chip signal, and the gain of power amplifier is controlled further by this voltage signal.
2. radio communication device as claimed in claim 1, is characterized in that: received signal strength is converted to digital signal by analog-to-digital conversion by described central processing unit, and according to this digital signal to power management chip output pulse width modulation signal.
3. radio communication device as claimed in claim 2, is characterized in that: described power management chip is electrically connected between central processing unit and power amplifier, for the pulse width modulating signal output voltage signal exported according to central processing unit.
4. radio communication device as claimed in claim 1, is characterized in that: described power amplifier is linear power amplifier.
5. radio communication device as claimed in claim 4, is characterized in that: when the received signal strength of WIFI signal is higher, and the voltage signal that power management chip exports is lower, and the gain of power amplifier is lower; When the received signal strength of WIFI signal is lower, the voltage signal that power management chip exports is higher, and the gain of power amplifier is higher.
6. radio communication device as claimed in claim 1, it is characterized in that: described radio communication device also comprises duplexer, described duplexer is electrically connected between WIFI antenna and WIFI transceiving chip, WIFI signal for being received by WIFI antenna is sent to WIFI transceiving chip, described duplexer is also electrically connected between WIFI antenna and power amplifier, for the WIFI signal after being amplified by power amplifier is sent to WIFI antenna.
7. radio communication device as claimed in claim 6, is characterized in that: described WIFI transceiving chip is used for the WIFI signal that demodulation is transmitted by duplexer, and modulates WIFI signal to be sent to power amplifier.
8. a radio communication device, it comprises WIFI antenna, for receiving and dispatching WIFI signal, it is characterized in that: this radio communication device also comprises power amplifier, WIFI transceiving chip, central processing unit and power management chip, this power amplifier is electrically connected between WIFI antenna and WIFI transceiving chip, this WIFI transceiving chip and WIFI antenna are electrically connected, for detecting the received signal strength of the current WIFI signal of WIFI antenna, this WIFI transceiving chip and central processing unit are electrically connected, the received signal strength of detecting is passed to central processing unit, the received signal strength that this central processing unit is used for the WIFI signal transmitted according to WIFI transceiving chip controls power management chip, and the gain of power amplifier is controlled by this power management chip, when the received signal strength of WIFI signal is higher, the voltage signal that central processing unit controls power management chip output is lower, the gain of power amplifier is lower, when the received signal strength of WIFI signal is lower, the voltage signal that central processing unit controls power management chip output is higher, and the gain of power amplifier is higher.
9. radio communication device as claimed in claim 8, is characterized in that: received signal strength is converted to digital signal by analog-to-digital conversion by described central processing unit, and according to this digital signal to power management chip output pulse width modulation signal.
10. radio communication device as claimed in claim 8, is characterized in that: described power amplifier is linear power amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410034651.2A CN104812102A (en) | 2014-01-25 | 2014-01-25 | Radio communication apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410034651.2A CN104812102A (en) | 2014-01-25 | 2014-01-25 | Radio communication apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104812102A true CN104812102A (en) | 2015-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410034651.2A Pending CN104812102A (en) | 2014-01-25 | 2014-01-25 | Radio communication apparatus |
Country Status (1)
| Country | Link |
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| CN (1) | CN104812102A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106535308A (en) * | 2016-10-27 | 2017-03-22 | 深圳市保千里电子有限公司 | Method and system for smartly controlling WIFI transmission distance |
| WO2017054117A1 (en) * | 2015-09-29 | 2017-04-06 | 华为技术有限公司 | Method for controlling transmission power of wireless communication terminal, and wireless communication terminal |
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| CN1707965A (en) * | 2004-06-11 | 2005-12-14 | 乐金电子(中国)研究开发中心有限公司 | A mobile communication terminal and control method for emitting radio frequency signal |
| CN101710925A (en) * | 2009-12-14 | 2010-05-19 | 深圳华为通信技术有限公司 | Device and method for lowering power consumption of complete machine |
| CN101938284A (en) * | 2009-06-30 | 2011-01-05 | 深圳富泰宏精密工业有限公司 | Communication device and communication method thereof |
| US20110126034A1 (en) * | 2009-11-20 | 2011-05-26 | Plantronics, Inc. | Power management utilizing proximity or link status determination |
| CN103501532A (en) * | 2013-10-12 | 2014-01-08 | 惠州Tcl移动通信有限公司 | Method and device for controlling mobile WIFI (wireless fidelity) hotspot transmitting power |
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2014
- 2014-01-25 CN CN201410034651.2A patent/CN104812102A/en active Pending
Patent Citations (5)
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| CN1707965A (en) * | 2004-06-11 | 2005-12-14 | 乐金电子(中国)研究开发中心有限公司 | A mobile communication terminal and control method for emitting radio frequency signal |
| CN101938284A (en) * | 2009-06-30 | 2011-01-05 | 深圳富泰宏精密工业有限公司 | Communication device and communication method thereof |
| US20110126034A1 (en) * | 2009-11-20 | 2011-05-26 | Plantronics, Inc. | Power management utilizing proximity or link status determination |
| CN101710925A (en) * | 2009-12-14 | 2010-05-19 | 深圳华为通信技术有限公司 | Device and method for lowering power consumption of complete machine |
| CN103501532A (en) * | 2013-10-12 | 2014-01-08 | 惠州Tcl移动通信有限公司 | Method and device for controlling mobile WIFI (wireless fidelity) hotspot transmitting power |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017054117A1 (en) * | 2015-09-29 | 2017-04-06 | 华为技术有限公司 | Method for controlling transmission power of wireless communication terminal, and wireless communication terminal |
| CN107534475A (en) * | 2015-09-29 | 2018-01-02 | 华为技术有限公司 | Method for controlling transmission power of wireless communication terminal and wireless communication terminal |
| US10820280B2 (en) | 2015-09-29 | 2020-10-27 | Huawei Technologies Co., Ltd. | Method for controlling transmit power of wireless communications terminal, and wireless communications terminal |
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| CN106535308A (en) * | 2016-10-27 | 2017-03-22 | 深圳市保千里电子有限公司 | Method and system for smartly controlling WIFI transmission distance |
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Application publication date: 20150729 |
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