CN105262496A - RF Radio frequency transceiver, electronic device and method for adjusting work frequency band - Google Patents
RF Radio frequency transceiver, electronic device and method for adjusting work frequency band Download PDFInfo
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Abstract
The invention provides a radio frequency transceiver, an electronic device and a method for adjusting a work frequency band. The radio frequency transceiver comprises an antenna with an adjustable frequency, a transceiver, and a radio frequency front-end circuit which has an adjustable frequency and is connected between the antenna and the transceiver, wherein the transceiver is used for generating an uplink radio frequency signal based on a current network mode and/or a current frequency band; the network mode and the frequency of both the antenna and the radio frequency front-end circuit can be adjusted into the current network mode and/or the current frequency band; the uplink radio frequency signal after being processed by the radio frequency front-end circuit is transmitted out through the antenna; the antenna is also used for obtaining a downlink radio frequency signal; the downlink radio frequency signal after being processed by the radio frequency front-end circuit reaches to the transceiver; and the transceiver is also used for processing the downlink radio frequency signal.
Description
Technical field
The present invention relates to electronic technology field, particularly relate to a kind of method of radio frequency transceiver, electronic equipment and adjustment working frequency range.
Background technology
Along with the development of the communication technology, there is multiple communication standard (being also called mould), such as GSM (GlobalSystemforMobileCommunications; Global system for mobile communications), WCDMA (WidebandCodeDivisionMultipleAccess; Wideband Code Division Multiple Access (WCDMA) access) system, LTE (LongTermEvolution; Long Term Evolution) system, wherein GSM belongs to 2G (second generation) communication technology, and WCDMA system belongs to 3G (third generation) communication technology, and LTE belongs to 4G (forth generation) communication technology.Further, often kind of communication standard comprises again multiple frequency range, and there is the multiple frequency range of multiple mould in the current whole world, such as: GSM, working frequency range be 900MHz and 1800MHz, 900MHz frequency range cover frequency range be 890-960MHz, 1800MHz frequency range cover frequency range be 1710-1880MHz; PCS (PersonalCommunicationsService; Personal communication service), working frequency range is 1900MHz; DCS (DigitalCellularSystem; Digital Cellular System), working frequency range is 1800MHz; WCDMABANDI, working frequency range is 2100MHz, and the frequency range of covering is 1920-2170MHz; WCDMABANDII, working frequency range is 1900MHz, and the frequency range of covering is 1850-1990MHz; WCDMABANDIV, working frequency range is 800MHz; WCDMABANDV, working frequency range is 1700MHz; TDSCDMA (TimeDivision-SynchronousCodeDivisionMultipleAccess; The code division multiple access access of time division synchronous) system, working frequency range is 1800MHz and 1900MHz; The 800MHz frequency range of CDMA and 1900MHz frequency range; The 2100MHz frequency range of LTE system.
With the development of the communication technology, electronic technology is develop rapidly also, have developed various electronic, and to meet multiple communication standard, further, conveniently user uses, and an electronic equipment just can support multiple communication standard, such as multi mode terminal.
In the prior art, multimode electronic equipment has multi-mode and multi-standby form and multimode list to treat form, and namely multimode multi-band needs two baseband processor and two cover radio frequency transceivers to work with standby, so power consumption is higher simultaneously; Multimode list treats to only have a baseband processor, but radio frequency transceiver still needs many covers, and needs network side network schemer to the support of the FallBack (rollback) of another network schemer.A kind of multimode electronic equipment is also had to be have multiple transceiver, multi-channel rf front end link, a large amount of filters, amplifier, match circuit and diverter switch, please refer to shown in Fig. 1, for a kind of in prior art circuit structure diagram of multi mode terminal, multi-channel rf device is in the two-sided upper expansion of PCB (printed circuit board), power signal line intersection takies a large amount of area, and need to use multiple filter, so circuit is complicated, circuit cross-overs crosstalk is large.
As can be seen from above to description of the prior art, in prior art, there is no good multimode scheme.
Summary of the invention
The embodiment of the present invention provides a kind of method of radio frequency transceiver, electronic equipment and adjustment working frequency range, in order to solve the technical problem not having good multimode scheme existed in prior art.
One aspect of the present invention provides a kind of radio frequency transceiver, comprising: antenna, frequency-adjustable; Transceiver; Radio-frequency (RF) front-end circuit, frequency-adjustable, is connected between described antenna and described transceiver; Wherein, described transceiver is used for generating upstream radio-frequency signal according to current network schemer and/or frequency range, the network schemer of described antenna and described radio-frequency (RF) front-end circuit and frequency can be adjusted to described current network schemer and/or frequency range, described upstream radio-frequency signal, after described radio-frequency (RF) front-end circuit process, is gone out by described antenna transmission; Described antenna is also for obtaining downlink radio-frequency signal, and described downlink radio-frequency signal arrives described transceiver after described radio-frequency (RF) front-end circuit process, and described transceiver is also for the treatment of described downlink radio-frequency signal.
Optionally, described radio-frequency (RF) front-end circuit comprises:
Transmitting branch, for the treatment of described upstream radio-frequency signal;
Receiving branch, for the treatment of described downlink radio-frequency signal.
Optionally, described antenna comprises the first restructural capacitor array chip, described radio-frequency (RF) front-end circuit comprises the second restructural capacitor array chip, by adjusting the capacitance of described first restructural capacitor array chip and described second restructural capacitor array chip, the network schemer of described antenna and described radio-frequency (RF) front-end circuit and frequency can be adjusted to described current network schemer and/or frequency range.
The application also provides a kind of electronic equipment on the other hand, comprising: antenna, frequency-adjustable; Transceiver; Radio-frequency (RF) front-end circuit, frequency-adjustable, is connected between described antenna and described transceiver; Processor, is connected to described transceiver, for generation of uplink baseband signal, and for determining current network schemer and/or frequency range, and controls described antenna, described transceiver and described radio-frequency (RF) front-end circuit and is operated in described current network schemer and/or frequency range; Wherein, described transceiver is used for, according to described current network schemer and/or frequency range, described uplink baseband signal is converted to upstream radio-frequency signal, and described upstream radio-frequency signal, after described radio-frequency (RF) front-end circuit process, is gone out by described antenna transmission; Described antenna is also for obtaining downlink radio-frequency signal, described downlink radio-frequency signal arrives described transceiver after described radio-frequency (RF) front-end circuit process, described transceiver is also downgoing baseband signal for the treatment of described downlink radio-frequency signal, and described downgoing baseband signal is sent to described processor.
Optionally, described radio-frequency (RF) front-end circuit comprises:
Transmitting branch, for the treatment of described upstream radio-frequency signal;
Receiving branch, for the treatment of described downlink radio-frequency signal.
Optionally, described antenna comprises the first restructural capacitor array chip, described radio-frequency (RF) front-end circuit comprises the second restructural capacitor array chip, described first restructural capacitor array chip and described second restructural capacitor array chip are connected to described processor, described processor, by the described first restructural capacitor array chip of adjustment and the capacitance of described second restructural capacitor array chip, controls described antenna and described radio-frequency (RF) front-end circuit is operated in described current network schemer and/or frequency range.
Optionally, described processor comprises modulator-demodulator, and described modulator-demodulator is connected to described first restructural capacitor array chip and described second restructural capacitor array chip.
The application also provides a kind of method adjusting working frequency range more on the one hand, be applied to an electronic equipment, described electronic equipment comprises radio frequency transceiver and the processor of frequency-adjustable, the uplink baseband signal that described radio frequency transceiver is used for described processor to generate is launched, and the downlink radio-frequency signal received is converted to downgoing baseband signal, and send to described processor; Described method comprises: described processor determines current network schemer and/or frequency range; Described processor controls described radio frequency transceiver and is operated in described current network schemer and/or frequency range.
Optionally, described radio frequency transceiver comprises restructural capacitor array chip, and described processor controls described radio frequency transceiver and is operated in described current network schemer and/or frequency range, is specially:
Described processor controls described radio frequency transceiver by the capacitance adjusting described restructural capacitor array chip and is operated in described current network schemer and/or frequency range.
The one or more technical schemes provided in the embodiment of the present invention, at least have following technique effect or advantage:
One embodiment of the invention provides a kind of radio frequency transceiver, comprising: antenna, frequency-adjustable; Transceiver; Radio-frequency (RF) front-end circuit, frequency-adjustable, is connected between antenna and transceiver; Wherein, transceiver is used for generating upstream radio-frequency signal according to current network schemer and/or frequency range, the network schemer of antenna and radio-frequency (RF) front-end circuit and frequency can be adjusted to current network schemer and/or frequency range, and upstream radio-frequency signal, after radio-frequency (RF) front-end circuit process, is gone out by antenna transmission; Antenna is also for obtaining downlink radio-frequency signal, and downlink radio-frequency signal arrives transceiver after radio-frequency (RF) front-end circuit process, and transceiver is also for the treatment of downlink radio-frequency signal.In other words, the network schemer of the radio frequency transceiver in the embodiment of the present application and/or frequency range can be adjusted to current network schemer and/or frequency range, as long as network schemer switches, the network schemer of radio frequency transceiver also can adjust thereupon, so only need a set of radio frequency transceiver, just can meet multiple network pattern and/or frequency range, realize multimode; Further, because only need a set of radio frequency transceiver, so low in energy consumption, and simplify circuit, save PCB surface and amass, be conducive to the lightening of electronic equipment, improve the stability of electronic equipment.
Accompanying drawing explanation
Fig. 1 is the circuit structure diagram of electronic equipment in prior art;
The functional block diagram of radio frequency transceiver in Fig. 2 the application one embodiment;
Fig. 3 is the structure chart of the restructural capacitor array chip in the application one embodiment;
Fig. 4 a-Fig. 4 b is the structure chart of the restructural capacitor array chip in another embodiment of the application;
Fig. 5 is the schematic diagram that in Fig. 3 and Fig. 4 a-Fig. 4 b, restructural capacitor array chip regulates resonance frequency;
Fig. 6 is the functional block diagram of the electronic equipment in the application one embodiment;
Fig. 7 is the method flow diagram of the adjustment working frequency range in the application one embodiment.
Embodiment
The embodiment of the present invention provides a kind of method of radio frequency transceiver, electronic equipment and adjustment working frequency range, in order to solve the technical problem not having good multimode scheme existed in prior art.
Technical scheme in the embodiment of the present invention is solve above-mentioned technical problem, and general thought is as follows:
One embodiment of the invention provides a kind of radio frequency transceiver, comprising: antenna, frequency-adjustable; Transceiver; Radio-frequency (RF) front-end circuit, frequency-adjustable, is connected between antenna and transceiver; Wherein, transceiver is used for generating upstream radio-frequency signal according to current network schemer and/or frequency range, the network schemer of antenna and radio-frequency (RF) front-end circuit and frequency can be adjusted to current network schemer and/or frequency range, and upstream radio-frequency signal, after radio-frequency (RF) front-end circuit process, is gone out by antenna transmission; Antenna is also for obtaining downlink radio-frequency signal, and downlink radio-frequency signal arrives transceiver after radio-frequency (RF) front-end circuit process, and transceiver is also for the treatment of downlink radio-frequency signal.In other words, the network schemer of the radio frequency transceiver in the embodiment of the present application and/or frequency range can be adjusted to current network schemer and/or frequency range, as long as network schemer switches, the network schemer of radio frequency transceiver also can adjust thereupon, so only need a set of radio frequency transceiver, just can meet multiple network pattern and/or frequency range, realize multimode; Further, because only need a set of radio frequency transceiver, so low in energy consumption, and simplify circuit, save PCB surface and amass, be conducive to the lightening of electronic equipment, improve the stability of electronic equipment.
In order to better understand technique scheme, below in conjunction with Figure of description and concrete execution mode, technique scheme is described in detail.
One embodiment of the invention provides a kind of radio frequency transceiver, is applied in an electronic equipment, please refer to Fig. 2, and Fig. 2 is the functional block diagram of the power amplification circuit in the present embodiment.
As shown in Figure 2, this radio frequency transceiver comprises: antenna 40, frequency-adjustable; Transceiver 20; Radio-frequency (RF) front-end circuit 30, frequency-adjustable, is connected between antenna 40 and transceiver 20.
Wherein, transceiver 20 is for generating upstream radio-frequency signal according to current network schemer and/or frequency range, the network schemer of antenna 40 and radio-frequency (RF) front-end circuit 30 and frequency can be adjusted to current network schemer and/or frequency range, upstream radio-frequency signal, after radio-frequency (RF) front-end circuit 30 processes, is launched by antenna 40; Antenna 40 is also for obtaining downlink radio-frequency signal, and downlink radio-frequency signal arrives transceiver 20 after radio-frequency (RF) front-end circuit 30 processes, and transceiver 20 is also for the treatment of downlink radio-frequency signal.
In specific implementation process, transceiver 20 is for generating upstream radio-frequency signal according to current network schemer and/or frequency range, under normal circumstances, the baseband signal that baseband processor generates is digital signal, and radio-frequency transmissions is analog signal, so transceiver 20 may be integrated with a digital to analog converter, in order to digital signal is converted to analog signal, corresponding, also can an integrated analog to digital converter, the analog signal received is converted to digital signal.In other embodiments, digital to analog converter and/or analog to digital converter also can be within a processor integrated.
Further, transceiver 20 also includes frequency mixer, the analog signal of aforementioned generation is modulated in corresponding frequency range, radio frequency signal generation, for 900MHz frequency range, represents and transmits 900,000,000 signals a second, in other words, the time interval of often transmitting a signal is 1/900000000th second, so will be the oscillator mixing of 900MHz by analog signal and frequency of oscillation, and radio frequency signal generation.Therefore, the determination of the frequency of oscillation of oscillator is just determined according to current network schemer and/or frequency range, so transceiver can generate the radiofrequency signal of different frequency range.
Further, transceiver 20 also includes radio frequency protocol stack, and GSM's is gsm protocol stack, CDMA's is CDMA protocol stack, and WCDMA's is WCDMA protocol stack, each different, protocol stack defines a series of transmission rule, can meet the communication under different network schemers.
Be described above the process that transceiver 20 generates upstream radio-frequency signal, corresponding, transceiver 20 is also for the treatment of downlink radio-frequency signal, and this processing procedure is the inverse process of the process generating upstream radio-frequency signal.
Radio-frequency (RF) front-end circuit 30 comprises two branch roads, and one is transmitting branch, and for the treatment of upstream radio-frequency signal, another is receiving branch, for the treatment of downlink radio-frequency signal.
Shown in Fig. 2, receiving branch can comprise: the duplexer 303 of frequency-adjustable, the filter 302 of frequency-adjustable, the amplifier 301 of frequency-adjustable.Wherein, the duplexer 303 of frequency-adjustable for by upstream radio-frequency signal and downlink radio-frequency signal isolated, ensure to receive and launch and can normally work simultaneously.It is made up of the band stop filter of two groups of different frequencies, avoids the machine to transmit and is transferred to receiver.The filter 302 of frequency-adjustable, for eliminating harmonic wave, burr and the noise on transmission path, eliminates the outer energy of band in RX path simultaneously.The amplifier 301 concrete example low noise amplifier in this way of frequency-adjustable, for amplifying the downlink radio-frequency signal received before frequency reducing conversion, object utilizes this amplifier superior low-noise characteristic more obvious than secondary devices, increases the intensity of downlink radio-frequency signal.Further, receiving branch can also comprise the LNA input filter of frequency-adjustable, and the conducted interference produced for suppressing frequency converter and radiated interference possess common and different mode rejection ability simultaneously.
Transmitting branch can comprise: the amplifier 306 of frequency-adjustable, the power amplifier 304 of the filter 305 of frequency-adjustable, the duplexer 303 of frequency-adjustable and frequency-adjustable.Wherein, the upstream radio-frequency signal power that modulating oscillator produces is very little, need through a series of amplification, the amplification of the amplifier 306 of frequency-adjustable, final power amplifying stage, after obtaining enough radio-frequency powers, radiate just can be fed on antenna 40, in order to obtain enough large radio frequency power output, radio-frequency power amplifier 304 must be adopted.The filter 305 of frequency-adjustable is for eliminating harmonic wave, burr and the noise on transmission path.
In practice, receiving branch and transmitting branch can also comprise other radio-frequency devices, and for the treatment of Received signal strength and transmitting, this part content be well known to those skilled in the art, so do not repeat them here.
Next the network schemer and frequency of introducing antenna 40 and radio-frequency (RF) front-end circuit 30 can be adjusted to current network schemer and/or the execution mode of frequency range.
A kind of possible implementation is: antenna 40 comprises the first restructural capacitor array chip, radio-frequency (RF) front-end circuit 30 comprises the second restructural capacitor array chip, by adjusting the capacitance of the first restructural capacitor array chip and the second restructural capacitor array chip, the network schemer of antenna 40 and radio-frequency (RF) front-end circuit 30 and frequency can be adjusted to current network schemer and/or frequency range.
Restructural capacitor array is the micro-capacitor array of a row, is connected in parallel by microelectronic switch, when electronic switch is all connected, and these Capacitance parallel connections, form larger capacitance, resonance is in lower frequency; When electronic switch part disconnects, the number change of these Capacitance parallel connections: the capacitance of electric capacity changes, the resonance frequency of the resonant circuit of electric capacity access also changes, thus it is adjustable to realize operating frequency.
Circuit structure diagram about the first restructural capacitor array chip please refer to shown in Fig. 3, antenna 40 comprises the first restructural capacitor array chip 401 and antenna pattern 402, the operating frequency of antenna pattern 402 depends on resonant circuit, and pass through the capacitance of change first restructural capacitor array chip 401, the resonance frequency of the resonant circuit of electric capacity access also changes, thus the operating frequency realizing antenna pattern 402 is adjustable.
Circuit structure diagram about the second restructural capacitor array chip please refer to shown in Fig. 4 a and Fig. 4 b, is two kinds of possible restructural capacitor array chips.Each radio-frequency devices that radio-frequency (RF) front-end circuit 30 comprises, the duplexer 303 of such as, frequency-adjustable in Fig. 2, the filter 302 of frequency-adjustable, the amplifier 301 of frequency-adjustable, all can comprise the restructural capacitor array chip as shown in Fig. 4 a or Fig. 4 b.The operating frequency of these radio-frequency devices depends on inner resonant circuit, so can by the capacitance of change second restructural capacitor array chip, the resonance frequency of the resonant circuit of electric capacity access also changes, thus the operating frequency realizing radio-frequency (RF) front-end circuit 30 is adjustable.
Refer again to shown in Fig. 5, the schematic diagram that the resonance frequency of resonant circuit changes with the change of the capacitance of restructural capacitor array chip, three different resonance frequencys have been shown in Fig. 5,0.61GHz, 0.7GHz and 0.96GHz from left to right respectively, that is, the resonance frequency of each radio-frequency devices can be adjusted to different frequencies, and then realizes operating frequency adjustable of each radio-frequency devices.
Certainly, in practice, other regulative mode can also be adopted, such as, utilize the mode of mechanical adjustable inductance to realize the frequency-adjustable of each radio-frequency devices, so the application does not do concrete restriction.
For example, 1700MHz frequency range under electronic equipment is in the network of 3G pattern before, and along with the movement of electronic equipment, electronic equipment moves to the region that 3G network does not cover, current network schemer is 2G pattern, and in 900MHz frequency range, so transceiver 20 just can generate upstream radio-frequency signal according to the 900MHz frequency range under 2G pattern, antenna 40 and radio-frequency (RF) front-end circuit 30 are also adjusted to 2G network schemer and 900MHz frequency range by 3G network pattern before and 1700MHz frequency range, make radio frequency transceiver can be operated in the environment of 2G network schemer and 900MHz frequency range, otherwise, also can adjust back again.Therefore, in the present embodiment, as long as environment network pattern switches, the network schemer of radio frequency transceiver also can adjust thereupon, so only need a set of radio frequency transceiver, just can meet multiple network pattern and/or frequency range, realize multimode; Further, because only need a set of radio frequency transceiver, so low in energy consumption, and simplify circuit, save PCB surface and amass, be conducive to the lightening of electronic equipment, improve the stability of electronic equipment.
Based on same inventive concept, the embodiment of the present application also provides a kind of electronic equipment, this electronic equipment concrete example mobile phone, panel computer in this way.Please refer to shown in Fig. 6, this electronic equipment comprises: antenna 40, frequency-adjustable; Transceiver 20; Radio-frequency (RF) front-end circuit 30, frequency-adjustable, is connected between antenna 40 and transceiver 20; Processor 10, is connected to transceiver 20, and for generation of uplink baseband signal, and for determining current network schemer and/or frequency range, and control antenna 40, transceiver 20 and radio-frequency (RF) front-end circuit 30 are operated in current network schemer and/or frequency range; Wherein, transceiver 20 is for being converted to upstream radio-frequency signal according to current network schemer and/or frequency range by uplink baseband signal, and upstream radio-frequency signal, after radio-frequency (RF) front-end circuit 30 processes, is launched by antenna 40; Antenna 40 is also for obtaining downlink radio-frequency signal, and downlink radio-frequency signal arrives transceiver 20 after radio-frequency (RF) front-end circuit 30 processes, and transceiver 20 is also downgoing baseband signal for the treatment of downlink radio-frequency signal, and downgoing baseband signal is sent to processor 10.
Please refer to about antenna 40, radio-frequency (RF) front-end circuit 30 and transceiver 20 aforementioned for the description in the radio frequency transceiver in Fig. 2, succinct in order to specification, do not repeat them here.
In a further embodiment, aforementioned first restructural capacitor array chip and the second restructural capacitor array chip are connected to processor 10, processor 10 passes through the capacitance of adjustment first restructural capacitor array chip and the second restructural capacitor array chip, and control antenna 40 and radio-frequency (RF) front-end circuit 30 are operated in current network schemer and/or frequency range.
Further, processor 10 comprises modulator-demodulator, and modulator-demodulator is connected to the first restructural capacitor array chip and the second restructural capacitor array chip.In other words, modulator-demodulator is for determining current network schemer and/or frequency range, and adjust the capacitance of the first restructural capacitor array chip and the second restructural capacitor array chip, and then control antenna 40 and radio-frequency (RF) front-end circuit 30 are operated in current network schemer and/or frequency range.
Specifically, the first restructural capacitor array chip and the second restructural capacitor array chip use high speed SPI (SerialPeripheralinterface; Synchronous serial interface) or MIPI (MobileIndustryProcessorInterface; Mobile Industry Processor Interface), be connected with the digital interface SPI on modulator-demodulator or MIPI interface, by the physical layer of modulator-demodulator according to the capacitance of the network schemer at place and/or frequency range quick reconfiguration first restructural capacitor array chip and the second restructural capacitor array chip, and use RF MEMS (Micro-Electro-MechanicalSystems; MEMS (micro electro mechanical system)) other passive circuit devices of switching over, electronic equipment can be reconstructed in the whole band operation frequency of 800MHz ~ 2600MHz.
Processor 10 can be specifically baseband processor or application processor, processor 10 for the synthesis of the baseband signal being about to launch, or is decoded to the baseband signal received, specifically, during transmitting, audio signal is compiled into the base band code for launching; During reception, the base band code received is interpreted as audio signal.
Processor 10, except comprising above-mentioned modulator-demodulator, also comprises CPU processor, channel encoder, digital signal processor and interface module.CPU processor carries out control and management to whole electronic equipment, comprises timing controlled, digital system control, radio frequency control, power-saving control and man-machine interface control etc.; Meanwhile, CPU processor completes all software functions of electronic equipment, i.e. the physical layer of communication protocol, data link layer, network layer, man-machine interface and application layer software.The chnnel coding, encryption etc. of the main finishing service information of channel encoder and control information, wherein, chnnel coding comprises convolutional encoding, parity check code, intertexture, burst format.
Digital signal processor mainly completes speech coding and/or the decoding of channel equalization and rule-based pulse excitation-Techniques of Long Term Predication.
Interface module comprises analog interface, digital interface and man-machine interface three sub-blocks.
Based on same inventive concept, another embodiment of the present invention additionally provides a kind of method adjusting working frequency range, an electronic equipment can be applied to, this electronic equipment comprises radio frequency transceiver and the processor of frequency-adjustable, the uplink baseband signal that radio frequency transceiver is used for processor generates is launched, and the downlink radio-frequency signal received is converted to downgoing baseband signal, and send to processor, concrete as the radio frequency transceiver in previous embodiment and electronic equipment.
Please refer to Fig. 7, the method comprises:
Step 201: processor determines current network schemer and/or frequency range;
Step 202: processor controls radio frequency transceiver and is operated in current network schemer and/or frequency range.
In specific implementation process, radio frequency transceiver comprises restructural capacitor array chip, and step 202 is specially: processor controls radio frequency transceiver by the capacitance of adjustment restructural capacitor array chip and is operated in current network schemer and/or frequency range.
The implementation process of the method in the present embodiment will be described by a concrete example below.
Such as: electronic equipment moves to the environment of LTE network pattern and 2300MHz frequency range from the environment of WCDMA network schemer and 2100MHz frequency range, processor detects that current network schemer becomes LTE, frequency range becomes 2300MHz, so at this moment, processor just adjusts the capacitance of restructural capacitor array chip, and then the network schemer changing radio frequency transceiver is LTE pattern, working frequency range is 2300MHz.To meet the communication in current network conditions.
Various variation patterns in aforementioned radio frequency transceiver and electronic equipment are equally applicable to the method for the adjustment working frequency range of the present embodiment, by the detailed description of aforementioned radio frequency transceiver and electronic equipment, those skilled in the art clearly can know in the present embodiment the various execution modes of the method adjusting working frequency range, so succinct in order to specification, be not described in detail in this.
The one or more technical schemes provided in the embodiment of the present invention, at least have following technique effect or advantage:
One embodiment of the invention provides a kind of radio frequency transceiver, comprising: antenna, frequency-adjustable; Transceiver; Radio-frequency (RF) front-end circuit, frequency-adjustable, is connected between antenna and transceiver; Wherein, transceiver is used for generating upstream radio-frequency signal according to current network schemer and/or frequency range, the network schemer of antenna and radio-frequency (RF) front-end circuit and frequency can be adjusted to current network schemer and/or frequency range, and upstream radio-frequency signal, after radio-frequency (RF) front-end circuit process, is gone out by antenna transmission; Antenna is also for obtaining downlink radio-frequency signal, and downlink radio-frequency signal arrives transceiver after radio-frequency (RF) front-end circuit process, and transceiver is also for the treatment of downlink radio-frequency signal.In other words, the network schemer of the radio frequency transceiver in the embodiment of the present application and/or frequency range can be adjusted to current network schemer and/or frequency range, as long as network schemer switches, the network schemer of radio frequency transceiver also can adjust thereupon, so only need a set of radio frequency transceiver, just can meet multiple network pattern and/or frequency range, realize multimode; Further, because only need a set of radio frequency transceiver, so low in energy consumption, and simplify circuit, save PCB surface and amass, be conducive to the lightening of electronic equipment, improve the stability of electronic equipment.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (9)
1. a radio frequency transceiver, comprising:
Antenna, frequency-adjustable;
Transceiver;
Radio-frequency (RF) front-end circuit, frequency-adjustable, is connected between described antenna and described transceiver;
Wherein, described transceiver is used for generating upstream radio-frequency signal according to current network schemer and/or frequency range, the network schemer of described antenna and described radio-frequency (RF) front-end circuit and frequency can be adjusted to described current network schemer and/or frequency range, described upstream radio-frequency signal, after described radio-frequency (RF) front-end circuit process, is gone out by described antenna transmission; Described antenna is also for obtaining downlink radio-frequency signal, and described downlink radio-frequency signal arrives described transceiver after described radio-frequency (RF) front-end circuit process, and described transceiver is also for the treatment of described downlink radio-frequency signal.
2. transceiver as claimed in claim 1, it is characterized in that, described radio-frequency (RF) front-end circuit comprises:
Transmitting branch, for the treatment of described upstream radio-frequency signal;
Receiving branch, for the treatment of described downlink radio-frequency signal.
3. transceiver as claimed in claim 1, it is characterized in that, described antenna comprises the first restructural capacitor array chip, described radio-frequency (RF) front-end circuit comprises the second restructural capacitor array chip, by adjusting the capacitance of described first restructural capacitor array chip and described second restructural capacitor array chip, the network schemer of described antenna and described radio-frequency (RF) front-end circuit and frequency can be adjusted to described current network schemer and/or frequency range.
4. an electronic equipment, comprising:
Antenna, frequency-adjustable;
Transceiver;
Radio-frequency (RF) front-end circuit, frequency-adjustable, is connected between described antenna and described transceiver;
Processor, is connected to described transceiver, for generation of uplink baseband signal, and for determining current network schemer and/or frequency range, and controls described antenna, described transceiver and described radio-frequency (RF) front-end circuit and is operated in described current network schemer and/or frequency range;
Wherein, described transceiver is used for, according to described current network schemer and/or frequency range, described uplink baseband signal is converted to upstream radio-frequency signal, and described upstream radio-frequency signal, after described radio-frequency (RF) front-end circuit process, is gone out by described antenna transmission; Described antenna is also for obtaining downlink radio-frequency signal, described downlink radio-frequency signal arrives described transceiver after described radio-frequency (RF) front-end circuit process, described transceiver is also downgoing baseband signal for the treatment of described downlink radio-frequency signal, and described downgoing baseband signal is sent to described processor.
5. electronic equipment as claimed in claim 4, it is characterized in that, described radio-frequency (RF) front-end circuit comprises:
Transmitting branch, for the treatment of described upstream radio-frequency signal;
Receiving branch, for the treatment of described downlink radio-frequency signal.
6. electronic equipment as claimed in claim 4, it is characterized in that, described antenna comprises the first restructural capacitor array chip, described radio-frequency (RF) front-end circuit comprises the second restructural capacitor array chip, described first restructural capacitor array chip and described second restructural capacitor array chip are connected to described processor, described processor, by the described first restructural capacitor array chip of adjustment and the capacitance of described second restructural capacitor array chip, controls described antenna and described radio-frequency (RF) front-end circuit is operated in described current network schemer and/or frequency range.
7. electronic equipment as claimed in claim 6, it is characterized in that, described processor comprises modulator-demodulator, and described modulator-demodulator is connected to described first restructural capacitor array chip and described second restructural capacitor array chip.
8. one kind adjusts the method for working frequency range, be applied to an electronic equipment, described electronic equipment comprises radio frequency transceiver and the processor of frequency-adjustable, the uplink baseband signal that described radio frequency transceiver is used for described processor to generate is launched, and the downlink radio-frequency signal received is converted to downgoing baseband signal, and send to described processor; Described method comprises:
Described processor determines current network schemer and/or frequency range;
Described processor controls described radio frequency transceiver and is operated in described current network schemer and/or frequency range.
9. method as claimed in claim 8, it is characterized in that, described radio frequency transceiver comprises restructural capacitor array chip, and described processor controls described radio frequency transceiver and is operated in described current network schemer and/or frequency range, is specially:
Described processor controls described radio frequency transceiver by the capacitance adjusting described restructural capacitor array chip and is operated in described current network schemer and/or frequency range.
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