CN103906201A - Power consumption reduction control method of radio frequency front-end of mobile terminal and device thereof - Google Patents
Power consumption reduction control method of radio frequency front-end of mobile terminal and device thereof Download PDFInfo
- Publication number
- CN103906201A CN103906201A CN201210571937.5A CN201210571937A CN103906201A CN 103906201 A CN103906201 A CN 103906201A CN 201210571937 A CN201210571937 A CN 201210571937A CN 103906201 A CN103906201 A CN 103906201A
- Authority
- CN
- China
- Prior art keywords
- power
- mobile terminal
- power amplifier
- radio
- transceiver
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
Landscapes
- Amplifiers (AREA)
- Transceivers (AREA)
Abstract
The invention relates to a power consumption reduction control method of a radio frequency front-end of a mobile terminal and a device thereof. The power consumption reduction control device comprises a transceiver, a power amplifier, a power switch and a controller. The transceiver has an emission output end, and the transceiver has an output power range. The power amplifier has a signal input end, a signal output end and an enable. The signal input end is connected with the emission output end of the transceiver. The enable receives an enable signal which controls on or off of the power amplifier. The power switch has a first input end and a second input end. The first input end is connected with the signal output end of the power amplifier. The second input end is connected with the emission output end of the transceiver. The controller outputs the enable signal to the enable of the power amplifier, and the controller determines to turn off the power amplifier when a target power range of the mobile terminal falls into an output power range of the transceiver.
Description
Technical field
The present invention relates to the radio-frequency front-end reducing power consumption design of mobile terminal, especially relate to reducing power consumption control method and the device of the radio-frequency front-end of mobile terminal.
Background technology
Along with the processor performance of mobile terminal device improves constantly, its wireless applications constantly increases, and graphing capability is also more and more advanced.Increase in these functions, has caused the power consumption of mobile terminal device increasing, and the demand that reduces power consumption of terminal becomes originally stronger.Wireless radio frequency modules is the larger module of power consumption in mobile terminal, and the power consumption optimumization design of this part is significant for the reduction of terminal overall power.Radio-frequency module power consumption generally includes transceiver (Transceiver) and power amplifier (Power Amplifier, PA), and power amplifier is the larger module of power consumption in these two modules.
The transmitting power of mobile terminal has predetermined power bracket.Take TD-SCDMA as example, its transmitting power scope is-49dBm～24dBm.The increase of terminal transmit power is completed by transceiver and power amplifier cascade.Transceiver can only be pushed into power 0dBm left and right, needs to continue, by power amplifier, transmitting power is increased to 24dBm.
Fig. 1 illustrates the structure of radio-frequency front end of existing terminal, shown in Fig. 1, transmission channel is made up of power amplifier (PA) 20 and radio-frequency switch circuit (SW) 30, the process transmitting is: the power output of transceiver 10 is amplified by power amplifier 20, then passes through the transmitting path of radio-frequency switch circuit 30 to antenna 40.The operating state of power amplifier 20 is by PAen and two signal controlling of PAmode from its control end input.Signal PAen power ratio control amplifier 20 enables, the mode of operation of signal PAmode power ratio control amplifier 20.
Continue with reference to Fig. 1, in the time of high power work, power amplifier 20 can be switched to high-power mode work.This high-power mode can be pushed into maximum by power and require power under the condition that guarantees the linearity.If but under high-power mode, launch low-power, efficiency is lower and power consumption is larger.In the time that small-power is worked, power amplifier 20 can be cut into low-power mode.With respect to high-power mode, under this low-power mode, power amplifier 20 efficiency are higher, and terminal can be saved certain power consumption.
In TD-SCDMA terminal, transmitting power is controlled by transceiver 10, and power amplifier 20 provides high and low two kinds of mode of operations.When transmitting power is in 16dBm～24dBm section, power amplifier 20 is operated in high-power mode; When transmitting power is in-49dBm～15dBm section, power amplifier 20 is operated in low-power mode.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of reducing power consumption control method and device of radio-frequency front-end of mobile terminal, further to reduce the power consumption of radio-frequency front-end.
The present invention solves the problems of the technologies described above the reducing power consumption control device that the technical scheme adopting is the radio-frequency front-end of a kind of mobile terminal of proposition, comprises transceiver, power amplifier, power switch and controller.Transceiver has a transmitting output, and this transceiver has an output power range.Power amplifier has a signal input part, a signal output part and an Enable Pin, and this signal input part connects the transmitting output of this transceiver, and this Enable Pin receives an enable signal, and this this power amplifier of enable signal control is for opening or cutting out.Power switch has a first input end and one second input, and this first input end connects this signal output part of this power amplifier, and this second input connects this transmitting output of this transceiver.Controller is exported this enable signal this Enable Pin to this power amplifier, and in the time that the target power scope of this mobile terminal falls into the output power range of this transceiver, this controller determines to cut out this power amplifier.
In one embodiment of this invention, in the time that the target power scope of this mobile terminal does not fall into the output power range of this transceiver, this controller determines to open this power amplifier.
In one embodiment of this invention, this power amplifier has a mode selection terminal, and this mode selection terminal receives a mode select signal, and this this power amplifier of mode select signal control is operated in high-power mode or low-power mode; And when the target power scope of this mobile terminal be to should high-power mode the first power bracket time, this controller determines open this power amplifier and make this power amplifier be operated in this high-power mode, when the target power scope of this mobile terminal be to should low-power mode the second power bracket time, this controller determines to open this power amplifier also makes this power amplifier be operated in this low-power mode.
In one embodiment of this invention, the radio frequency chip that this controller is this mobile terminal.
In one embodiment of this invention, the baseband chip that this controller is this mobile terminal.
In one embodiment of this invention, this power amplifier and this power switch are to be combined in a power amplifier module.
In one embodiment of this invention, this power amplifier is included in a multimode power amplifier, and this of this power switch the second input connects this transmitting output of this transceiver via a bypass passageways of this multimode power amplifier.
The reducing power consumption control method of the another radio-frequency front-end that proposes a kind of mobile terminal of the present invention, comprises the following steps: at the relatively output power range of the target power scope of this mobile terminal and the transceiver of this radio-frequency front-end of a controller; In the time that the target power scope of this mobile terminal falls into the output power range of this transceiver, this controller export an enable signal to this power amplifier to close this power amplifier; And the direct power switch that the output signal of this transceiver is exported to this radio-frequency front-end.
In one embodiment of this invention, in the time that the target power scope of this mobile terminal does not fall into the output power range of this transceiver, export this enable signal to this power amplifier to open this power amplifier.
In one embodiment of this invention, the radio frequency chip that this controller is this mobile terminal.
In one embodiment of this invention, the baseband chip that this controller is this mobile terminal.
In one embodiment of this invention, said method also comprises: in the time that the target power scope of this mobile terminal is the first power bracket of a corresponding high-power mode, this controller determines open this power amplifier and make this power amplifier be operated in this high-power mode; In the time that the target power scope of this mobile terminal is the second power bracket of a corresponding low-power mode, this controller determines open this power amplifier and make this power amplifier be operated in this low-power mode.
The present invention, owing to adopting above technical scheme, makes it compared with prior art, effectively reduces the power consumption of terminal low power range.According to terminal outfield transmitting power work distribution map, transmitting power is mainly distributed in middle low power region, and the saving of this power consumption is significant for the saving of power consumption of terminal.And for using the large quiescent dissipation devices such as PAM, the present invention more can effectively reduce the impact of quiescent dissipation on Overall Power Consumption.
Accompanying drawing explanation
For above-mentioned purpose of the present invention, feature and advantage can be become apparent, below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated, wherein:
Fig. 1 illustrates the structure of radio-frequency front end of existing mobile terminal.
Fig. 2 illustrates the structure of radio-frequency front end of the mobile terminal of first embodiment of the invention.
Fig. 3 illustrates the structure of radio-frequency front end of the mobile terminal of second embodiment of the invention.
Fig. 4 illustrates the structure of radio-frequency front end of the mobile terminal of third embodiment of the invention.
Fig. 5 illustrates the structure of radio-frequency front end of the mobile terminal of fourth embodiment of the invention.
Fig. 6 illustrates TD-SCDMA terminal outfield power output distribution map.
Embodiment
Embodiments of the invention are described structure and the control method of mobile terminal radio frequency front end, further to reduce the power consumption of radio-frequency front-end.Because power amplifier is the larger module of power consumption in this radio-frequency front-end, therefore expect on the basis of existing technology, further reduce its power consumption.
In the structure of radio-frequency front end of existing mobile terminal shown in Fig. 1, in the time transmitting, regardless of transmitting power, power amplifier is in running order all the time, just has dividing of high-power mode and low-power mode.But by the relatively transmitting power scope (49dBm～24dBm) of mobile terminal and power bracket (80dBm～0dBm) discovery that transceiver can provide, below 0dBm, only rely on transceiver just can meet the launch requirements of mobile terminal.Based on this analysis, embodiments of the invention are operated in those periods of the power bracket that transceiver can provide at mobile terminal, close power amplifier and reduce power consumption.
In an embodiment of the present invention, mobile terminal can be various 2G, 3G and the substandard mobile terminal of LTE.
Fig. 2 illustrates the structure of radio-frequency front end of the mobile terminal of first embodiment of the invention.Shown in Fig. 2, structure of radio-frequency front end generally includes transceiver 21, power amplifier (PA) 22, power switch (SW) 23 and antenna 24.The reducing power consumption control device of the radio-frequency front-end of one embodiment of the invention is implemented on this structure of radio-frequency front end, comprises aforesaid transceiver 21, power amplifier (PA) 22, power switch (SW) 23, antenna 24 and controller 25.
Transceiver 21 has a transmitting output TX and and receives input RX.Transceiver has an output power range conventionally.This output power range has determined the maximum power transmitting that transceiver can be exported.
The feature of the present embodiment is, the Enable Pin by controller 25 output enable signal PAen to power amplifier 22.Controller 25 can determine the target power scope of mobile terminal, and can the output power range comparison with transceiver by it, thereby determines that whether needing to open power amplifier carries out work.Be understandable that, in the time that the target power scope of mobile terminal falls into the output power range of transceiver 21, controller 25 can determine to cut out power amplifier 22.Because now only can provide mobile terminal to launch required power by transceiver 21.At this, the target power scope of mobile terminal falls into the output power range of transceiver 21, requires the upper limit of target power scope to be no more than the upper limit of transceiver output power range.On the other hand, in the time that the target power scope of mobile terminal does not fall into the output power range of transceiver, controller 25 determines to open this power amplifier 22.For example, the upper limit of target power scope exceedes the upper limit of transceiver output power range, shows to be only not enough to provide mobile terminal to launch required power with transceiver 21, needs further amplifying emission signal.
In the time that power amplifier 22 is closed, transmitting of transceiver 21 will directly be delivered to the second input of power switch 23 via transmitting output.
Take TD-SCDMA system as example, suppose that the output power range that transceiver 21 can provide is-80dBm～0dBm, the high-power mode gain of power amplifier 22 is 28dB, maximum exportable power is 27dBm, power amplifier 22 low-power working mode gains are 20dB, maximum exportable power 18dBm, the exemplary allocations of communication resources scheme of terminal output power range is as follows:
When 16dBm～24dBm high power work, power amplifier 22 is switched to high-power mode;
When the work of 0dBm～15dBm lower-wattage, power amplifier 22 is switched to low-power mode;
When-49dBm～-1dBm low-power operation, close power amplifier 22, power switch 23 be switched to this passage of TX1(and can use the RX passage of front end power switch), transceiver 21 directly exports antenna 24 to.
From above power allocation scheme, with respect to existing program, this scheme is in-49dBm～-1dBm region, and power amplifier 22 is in closed condition, thus the power consumption of saving power amplifier 22 completely.
In one embodiment of this invention, controller can be embodied as the baseband chip of mobile terminal.Rely on the program of baseband chip to implement the comparison of power bracket, and the output of enable signal and mode select signal.
In another embodiment of the present invention, controller also can be embodied as the radio frequency chip of mobile terminal.
The difference using according to radio-frequency front-end radio-frequency devices, power amplifier of the present invention and power switch can have several different execution modes.
Fig. 3 illustrates the structure of radio-frequency front end of the mobile terminal of second embodiment of the invention.Shown in Fig. 3, in structure of radio-frequency front end, power amplifier 22 and power switch 23 are to be combined in a power amplifier module (PAM) 31.Now, the bypass path from transceiver to power switch directly adopts the way switch passage that power amplifier module 31 provides.
Fig. 4 illustrates the structure of radio-frequency front end of the mobile terminal of third embodiment of the invention.Shown in Fig. 4, in structure of radio-frequency front end, power amplifier 22 is included in a multimode power amplifier 41.On multimode power amplifier 41 roads 42 all, indoor design one roadside.The second input of power switch 23 can connect via the bypass passageways of multimode power amplifier 41 42 the transmitting output of transceiver 21.In the time transmitting as low-power, all can switch to bypass path 42, this switching can be by external control logic control.
Fig. 5 illustrates the structure of radio-frequency front end of the mobile terminal of fourth embodiment of the invention.Shown in Fig. 5, in structure of radio-frequency front end, the power amplifier module 51 that adopts multimode power amplifier and switch to unite two into one.At this, bypass path 52 designs in power amplifier module 51 inside.Equally, on power amplifier module 51 roads 52 all, indoor design one roadside.The second input of power switch 23 can connect via the bypass passageways of power amplifier module 51 52 the transmitting output of transceiver 21.In the time transmitting as low-power, all can switch to bypass path 52, this switching can be by external control logic control.
The reducing power consumption control method of the embodiment of the present invention and device are mainly manifested in following 2 points for the usefulness of mobile terminal:
1, mobile terminal emitting power has power control, this means in outfield, and terminal transmit power is not maximum transmission power always, mainly concentrates on the contrary middle low power.Fig. 6 shows that the power output of TD-SCDMA terminal works in the time of outfield distributes.The power output of visible its maximum probability is-7dBm left and right, and also in the following scope of 0dBm, the large probability terrain of power cost of power amplifier saved in the embodiment of the present invention is like this present in terminal real work.
2, the PAM that radio-frequency front-end intermediate power amplifier and power switch unite two into one has been widely used in mobile terminal.The common quiescent dissipation of this device is larger, and quiescent dissipation is the main power consumption contribution of power amplifier in the time that terminal small-power is worked, therefore very large on the impact of terminal overall power.The scheme of the embodiment of the present invention is closed power amplifier in the time of low-power operation, thereby thoroughly cuts off the impact of this factor.
Although the present invention describes with reference to current specific embodiment, but those of ordinary skill in the art will be appreciated that, above embodiment is only for the present invention is described, in the situation that not departing from spirit of the present invention, also can make variation or the replacement of various equivalences, therefore, as long as the variation to above-described embodiment, modification all will drop in the application's the scope of claims within the scope of connotation of the present invention.
Claims (12)
1. a reducing power consumption control device for the radio-frequency front-end of mobile terminal, comprising:
Transceiver, has a transmitting output, and this transceiver has an output power range;
Power amplifier, has a signal input part, a signal output part and an Enable Pin, and this signal input part connects the transmitting output of this transceiver, and this Enable Pin receives an enable signal, and this this power amplifier of enable signal control is for opening or cutting out;
Power switch, has a first input end and one second input, and this first input end connects this signal output part of this power amplifier, and this second input connects this transmitting output of this transceiver; And
Controller, exports this enable signal this Enable Pin to this power amplifier, and in the time that the target power scope of this mobile terminal falls into the output power range of this transceiver, this controller determines to cut out this power amplifier.
2. the reducing power consumption control device of the radio-frequency front-end of mobile terminal as claimed in claim 1, is characterized in that, in the time that the target power scope of this mobile terminal does not fall into the output power range of this transceiver, this controller determines to open this power amplifier.
3. the reducing power consumption control device of the radio-frequency front-end of mobile terminal as claimed in claim 1, it is characterized in that, this power amplifier has a mode selection terminal, this mode selection terminal receives a mode select signal, and this this power amplifier of mode select signal control is operated in high-power mode or low-power mode;
And when the target power scope of this mobile terminal be to should high-power mode the first power bracket time, this controller determines open this power amplifier and make this power amplifier be operated in this high-power mode, when the target power scope of this mobile terminal be to should low-power mode the second power bracket time, this controller determines to open this power amplifier also makes this power amplifier be operated in this low-power mode.
4. the reducing power consumption control device of the radio-frequency front-end of mobile terminal as claimed in claim 1, is characterized in that, the radio frequency chip that this controller is this mobile terminal.
5. the reducing power consumption control device of the radio-frequency front-end of mobile terminal as claimed in claim 1, is characterized in that, the baseband chip that this controller is this mobile terminal.
6. the reducing power consumption control device of the radio-frequency front-end of mobile terminal as claimed in claim 1, is characterized in that, this power amplifier and this power switch are to be combined in a power amplifier module.
7. the reducing power consumption control device of the radio-frequency front-end of mobile terminal as claimed in claim 1, it is characterized in that, this power amplifier is included in a multimode power amplifier, and this of this power switch the second input connects this transmitting output of this transceiver via a bypass passageways of this multimode power amplifier.
8. a reducing power consumption control method for the radio-frequency front-end of mobile terminal, comprises the following steps:
At the relatively output power range of the target power scope of this mobile terminal and the transceiver of this radio-frequency front-end of a controller;
In the time that the target power scope of this mobile terminal falls into the output power range of this transceiver, this controller export an enable signal to this power amplifier to close this power amplifier; And
Directly the output signal of this transceiver is exported to the power switch of this radio-frequency front-end.
9. the reducing power consumption control method of the radio-frequency front-end of mobile terminal as claimed in claim 8, it is characterized in that, in the time that the target power scope of this mobile terminal does not fall into the output power range of this transceiver, export this enable signal to this power amplifier to open this power amplifier.
10. the reducing power consumption control method of the radio-frequency front-end of mobile terminal as claimed in claim 8, is characterized in that, the radio frequency chip that this controller is this mobile terminal.
The reducing power consumption control method of the radio-frequency front-end of 11. mobile terminals as claimed in claim 8, is characterized in that, the baseband chip that this controller is this mobile terminal.
The reducing power consumption control method of the radio-frequency front-end of 12. mobile terminals as claimed in claim 8, it is characterized in that, also comprise: in the time that the target power scope of this mobile terminal is the first power bracket of a corresponding high-power mode, this controller determines open this power amplifier and make this power amplifier be operated in this high-power mode; In the time that the target power scope of this mobile terminal is the second power bracket of a corresponding low-power mode, this controller determines open this power amplifier and make this power amplifier be operated in this low-power mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210571937.5A CN103906201A (en) | 2012-12-25 | 2012-12-25 | Power consumption reduction control method of radio frequency front-end of mobile terminal and device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210571937.5A CN103906201A (en) | 2012-12-25 | 2012-12-25 | Power consumption reduction control method of radio frequency front-end of mobile terminal and device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103906201A true CN103906201A (en) | 2014-07-02 |
Family
ID=50997295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210571937.5A Pending CN103906201A (en) | 2012-12-25 | 2012-12-25 | Power consumption reduction control method of radio frequency front-end of mobile terminal and device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103906201A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105916194A (en) * | 2016-05-26 | 2016-08-31 | 努比亚技术有限公司 | Radio-frequency signal transmitting method, radio-frequency signal transmitting device and terminal |
| CN106470473A (en) * | 2016-08-25 | 2017-03-01 | 乐视控股（北京）有限公司 | The method of signal transmission and the device for signal transmission |
| CN108494432A (en) * | 2018-05-18 | 2018-09-04 | 锐石创芯（深圳）科技有限公司 | Radio frequency front-end with low power consumption and electronic equipment comprising it |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1364351A (en) * | 1999-12-13 | 2002-08-14 | 皇家菲利浦电子有限公司 | Mobile communication device with two transmit antennas |
| EP1530303A1 (en) * | 2003-11-07 | 2005-05-11 | LG Electronics Inc. | Power control in a mobile communication system |
| CN201947223U (en) * | 2010-12-27 | 2011-08-24 | 中兴通讯股份有限公司 | Power-amplifying circuit and mobile terminal |
-
2012
- 2012-12-25 CN CN201210571937.5A patent/CN103906201A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1364351A (en) * | 1999-12-13 | 2002-08-14 | 皇家菲利浦电子有限公司 | Mobile communication device with two transmit antennas |
| EP1530303A1 (en) * | 2003-11-07 | 2005-05-11 | LG Electronics Inc. | Power control in a mobile communication system |
| CN201947223U (en) * | 2010-12-27 | 2011-08-24 | 中兴通讯股份有限公司 | Power-amplifying circuit and mobile terminal |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105916194A (en) * | 2016-05-26 | 2016-08-31 | 努比亚技术有限公司 | Radio-frequency signal transmitting method, radio-frequency signal transmitting device and terminal |
| WO2017202184A1 (en) * | 2016-05-26 | 2017-11-30 | 努比亚技术有限公司 | Method, device and terminal for transmitting radio frequency signal, and computer storage medium |
| CN106470473A (en) * | 2016-08-25 | 2017-03-01 | 乐视控股（北京）有限公司 | The method of signal transmission and the device for signal transmission |
| CN108494432A (en) * | 2018-05-18 | 2018-09-04 | 锐石创芯（深圳）科技有限公司 | Radio frequency front-end with low power consumption and electronic equipment comprising it |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10944370B2 (en) | Multi-gain mode power amplifier, chip, and communication terminal | |
| US20120293251A1 (en) | Doherty power amplifier and implementation method thereof | |
| CN101262260B (en) | Variable gain power amplifier for multi-channel self-adapted matching network | |
| CN102420634A (en) | Wireless communication transmitting and receiving system | |
| CN102404022A (en) | Power amplifying module, radio frequency front end module and multi-mode terminal | |
| WO2017092705A1 (en) | Multimode power amplifier module, chip and communication terminal | |
| CN103457550A (en) | Radio-frequency power amplifier and mobile terminal thereof | |
| JP2020025312A (en) | Power amplifier module, radio frequency communication device, and method for amplifying radio frequency signal | |
| CN103430603B (en) | power amplifier, transceiver and base station | |
| CN102932021A (en) | Down-conversion device, down-conversion implementation method and receiver | |
| EP2538549A1 (en) | Doherty power amplifier and implementation method therefor | |
| CN101548469A (en) | Current comsumption reduction with low power amplifier | |
| CN105099492A (en) | Electronic equipment and control method therefor | |
| CN201438689U (en) | High and low power combining circuit for RF power amplifier | |
| KR20020065402A (en) | Bias control circuit for power amplifier | |
| CN103906201A (en) | Power consumption reduction control method of radio frequency front-end of mobile terminal and device thereof | |
| CN202435392U (en) | Radio frequency module and mobile communication terminal thereof | |
| CN204836094U (en) | Power amplification circuit and radio frequency circuit | |
| US8710923B2 (en) | Method and apparatus for controlling peak amplifier and doherty power amplifier | |
| CN203275508U (en) | Power capability testing device and power amplifier unit | |
| CN101465678B (en) | Automatic control method for emission power of WLAN system | |
| CN201947223U (en) | Power-amplifying circuit and mobile terminal | |
| CN103249135B (en) | Radio communication device | |
| CN104158505A (en) | Radio frequency power amplification circuit, control method and terminal | |
| CN201726370U (en) | Radio-frequency power amplifier |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140702 |
|
| RJ01 | Rejection of invention patent application after publication |