CN108768421A - Signal transmitting method and radio frequency front end transmitting circuit - Google Patents
Signal transmitting method and radio frequency front end transmitting circuit Download PDFInfo
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- CN108768421A CN108768421A CN201810349718.XA CN201810349718A CN108768421A CN 108768421 A CN108768421 A CN 108768421A CN 201810349718 A CN201810349718 A CN 201810349718A CN 108768421 A CN108768421 A CN 108768421A
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
- H04B1/0053—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band
- H04B1/0057—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band using diplexing or multiplexing filters for selecting the desired band
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
- H04B1/0053—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band
- H04B1/006—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band using switches for selecting the desired band
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
- H04B1/0458—Arrangements for matching and coupling between power amplifier and antenna or between amplifying stages
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
- H04B2001/0408—Circuits with power amplifiers
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Transmitters (AREA)
Abstract
A signal transmitting method and a radio frequency front end transmitting circuit are provided, the method is applied to the radio frequency front end transmitting circuit, the radio frequency front end transmitting circuit comprises a radio frequency power amplifying module, a low pass filter, a switch module, a radio frequency antenna and a control module, and the method comprises the following steps: the control module controls the radio frequency power amplification module to perform power amplification on a radio frequency signal to be transmitted so as to obtain a first radio frequency signal; the radio frequency power amplification module sends the first radio frequency signal to the low-pass filter; the low-pass filter filters the first radio-frequency signal to obtain a second radio-frequency signal; the control module controls the switch module to conduct connection between the low-pass filter and the radio-frequency antenna, so that the low-pass filter sends the second radio-frequency signal to the radio-frequency antenna; the radio frequency antenna transmits the second radio frequency signal. By implementing the embodiment of the invention, the power consumption of the radio frequency front end transmitting circuit can be reduced.
Description
Technical field
The present invention relates to wireless communication technology fields, and in particular to a kind of signal transmitting method and radio-frequency front-end transmitting electricity
Road.
Background technology
Timesharing long-term evolution (Time Division Long Term Evolution, TD-LTE) is closed based on the third generation
Make Partnership Program (3rdGeneration Partner Project, 3GPP) Long Term Evolution a kind of mechanics of communication with
Standard is the LTE technologies of time division duplex (Time Division Duplexing, TDD) version, commonly referred to as 4G networks.With
Development and the maturation of TD-LTE technologies, each members of 3GPP, radio equipment manufacturer and operation commercial city promote LTE system in all one's effort
R&D work and market exploitation.An important component of the radio-frequency front-end as mobile communication mobile terminal, directly affects
The overall performance of wireless communication system.Currently, the RF front-end module of mainstream generally comprises switch, filter, power amplification
The devices such as device, the technique manufacture that these devices still can not use COMS etc. highly integrated at present, lead to RF front-end module
Volume is larger, it is difficult to meet the demand of the small sizes wearable device such as mobile device, especially smartwatch.In addition, switch, filter
The devices such as wave device can all bring insertion loss (i.e. the devices such as RF switch it is in the conduction state under when the general power that is lost).It is inserted into
The noise coefficient that loss can directly result in system increases, and increases the power consumption of RF front-end module, is unfavorable for extending mobile whole
The cruising ability at end.
Invention content
The embodiment of the invention discloses a kind of signal transmitting method and radio-frequency front-end radiating circuits, can reduce radio-frequency front-end
The power consumption of radiating circuit.
First aspect of the embodiment of the present invention discloses a kind of signal transmitting method, and the method is applied to radio-frequency front-end transmitting electricity
Road, the radio-frequency front-end radiating circuit include radio frequency power amplification module, low-pass filter, switch module, radio-frequency antenna and
Control module, the method includes：
The control module controls the radio frequency power amplification module and carries out power amplification to radiofrequency signal to be launched, with
Obtain the first radiofrequency signal；
First radiofrequency signal is sent to the low-pass filter by the radio frequency power amplification module；
The low-pass filter is filtered first radiofrequency signal, to obtain the second radiofrequency signal；
The control module controls the switch module and company between the low-pass filter and the radio-frequency antenna is connected
It connects, so that second radiofrequency signal is sent to the radio-frequency antenna by the low-pass filter；
The radio-frequency antenna emits second radiofrequency signal.
As an alternative embodiment, in first aspect of the embodiment of the present invention, the radiofrequency signal to be launched
Signal type include the first signal type and second signal type, when first signal type be honeycomb movable signal when,
The second signal type is wireless signal；When first signal type is wireless signal, the second signal type is
Honeycomb movable signal；The radio-frequency antenna includes first antenna and the second antenna, and first signal type corresponds to described first
Antenna, the second signal type correspond to second antenna；
The control module controls the switch module and company between the low-pass filter and the radio-frequency antenna is connected
It connects, so that second radiofrequency signal is sent to the radio-frequency antenna with the low-pass filter and the radio-frequency antenna is sent out
Second radiofrequency signal is penetrated, including：
When the signal type of the radiofrequency signal to be launched is first signal type, the control module control
The connection between the low-pass filter and the first antenna is connected in the switch module, so that the low-pass filter is by institute
It states the second radiofrequency signal and is sent to the first antenna, the first antenna emits second radiofrequency signal；
When the signal type of the radiofrequency signal to be launched is the second signal type, the control module control
The connection between the low-pass filter and second antenna is connected in the switch module, so that the low-pass filter is by institute
It states the second radiofrequency signal and is sent to second antenna, second antenna emits second radiofrequency signal.
As an alternative embodiment, in first aspect of the embodiment of the present invention, described in the control module control
Radio frequency power amplification module carries out power amplification to radiofrequency signal to be launched, with before obtaining the first radiofrequency signal, the side
Method further includes：
The control module detects the signal type of the radiofrequency signal to be launched, when the radiofrequency signal to be launched
Signal type be first signal type when, judge whether the radiofrequency signal for receiving the second signal type simultaneously,
If not, execute the control radio frequency power amplification module carries out power amplification to radiofrequency signal to be launched, to obtain
First radiofrequency signal；
When the signal type of the radiofrequency signal to be launched is the second signal type, judge whether to receive simultaneously
To the radiofrequency signal of first signal type, if not, executing the control radio frequency power amplification module to be launched
Radiofrequency signal carry out power amplification, to obtain the first radiofrequency signal.
As an alternative embodiment, in first aspect of the embodiment of the present invention, described in the control module control
Radio frequency power amplification module carries out power amplification to radiofrequency signal to be launched, with before obtaining the first radiofrequency signal, the side
Method further includes：
The control module judges whether the isolation between the first antenna and second antenna is more than specified threshold
Value, if so, execute the control radio frequency power amplification module carries out power amplification to radiofrequency signal to be launched, with
To the first radiofrequency signal.
As an alternative embodiment, in first aspect of the embodiment of the present invention, described in the control module control
Radio frequency power amplification module carries out power amplification to radiofrequency signal to be launched, with before obtaining the first radiofrequency signal, the side
Method further includes：
The control module detects the signal type of the radiofrequency signal to be launched；
When the signal type of the radiofrequency signal to be launched is first signal type, the control module obtains
Transmit the first transmission time slot when the radiofrequency signal of the second signal type；And judge to emit first signal type
Radiofrequency signal when the first working time slot whether conflict with first transmission time slot, if so, the control module adjust
First working time slot, first transmission time slot so that the first working time slot after adjustment is staggered；
When the signal type of the radiofrequency signal to be launched is the second signal type, the control module obtains
Transmit the second transmission time slot when the radiofrequency signal of first signal type；And judge to emit the second signal type
Radiofrequency signal when the second working time slot whether conflict with second transmission time slot, if so, the control module adjust
Second working time slot, second transmission time slot so that the second working time slot after adjustment is staggered；
And the control module controls the radio frequency power amplification module and is put to radiofrequency signal progress power to be launched
Greatly, to obtain the first radiofrequency signal, including：
The control module is according to described in the first working time slot after adjustment or the second working time slot control after adjustment
Radio frequency power amplification module carries out power amplification to the radiofrequency signal to be launched, to obtain the first radiofrequency signal.
As an alternative embodiment, in first aspect of the embodiment of the present invention, the radio-frequency front-end radiating circuit
It further include match circuit；
First radiofrequency signal is sent to the low-pass filter by the radio frequency power amplification module, including：
The radio frequency power amplification module emits first radiofrequency signal to the match circuit；
The match circuit is filtered first radiofrequency signal according to the cutoff frequency of the match circuit, will filter
The the first radio frequency subsignal obtained after wave is sent to the low-pass filter；Wherein, the match circuit is T-type or π type capacitances
The cutoff frequency of inductance match circuit, the match circuit is in the tranmitting frequency of second radiofrequency signal and is disturbed reception
Between frequency, the receives frequency that is disturbed is the receiver interfered by second radiofrequency signal in the mobile terminal
Receives frequency.
Second aspect of the embodiment of the present invention discloses a kind of radio-frequency front-end radiating circuit, including：It is radio frequency power amplification module, low
Bandpass filter, switch module, radio-frequency antenna and control module, wherein：
The radio frequency power amplification module, for being carried out to radiofrequency signal to be launched under the control of the control module
Power amplification, to obtain the first radiofrequency signal；And first radiofrequency signal is sent to the low-pass filter；
The low-pass filter, for being filtered to first radiofrequency signal, to obtain the second radiofrequency signal；
The switch module, for the low-pass filter and the radio frequency day to be connected under the control of the control module
Connection between line, so that second radiofrequency signal is sent to the radio-frequency antenna by the low-pass filter；
The radio-frequency antenna, for emitting second radiofrequency signal；
The control module puts radiofrequency signal progress power to be launched for controlling the radio frequency power amplification module
Greatly, to obtain the first radiofrequency signal；And control the switch module be connected the low-pass filter and the radio-frequency antenna it
Between connection so that second radiofrequency signal is sent to the radio-frequency antenna by the low-pass filter.
As an alternative embodiment, in second aspect of the embodiment of the present invention：
The signal type of the radiofrequency signal to be launched includes the first signal type and second signal type, when described the
When one signal type is honeycomb movable signal, the second signal type is wireless signal；When the second signal type is nothing
When line signal, first signal type is honeycomb movable signal；The radio-frequency antenna includes first antenna and the second antenna, institute
It states the first signal type and corresponds to the first antenna, the second signal type corresponds to second antenna；
The control module is connected for controlling the switch module between the low-pass filter and the radio-frequency antenna
Connection so that second radiofrequency signal is sent to the radio-frequency antenna and the radio frequency day by the low-pass filter
Line is used to emit the mode of second radiofrequency signal：
When the signal type of the radiofrequency signal to be launched is first signal type, the control module is used for
It controls the switch module and connection between the low-pass filter and the first antenna is connected, so that the low-pass filter
Second radiofrequency signal is sent to the first antenna, the first antenna is for emitting second radiofrequency signal；
When the signal type of the radiofrequency signal to be launched is the second signal type, the control module is used for
It controls the switch module and connection between the low-pass filter and second antenna is connected, so that the low-pass filter
Second radiofrequency signal is sent to second antenna, second antenna is for emitting second radiofrequency signal.
As an alternative embodiment, in second aspect of the embodiment of the present invention：
The control module is additionally operable to detect the signal type of the radiofrequency signal to be launched, when described to be launched
When the signal type of radiofrequency signal is first signal type, judge whether the mobile terminal exists simultaneously second letter
The radiofrequency signal of number type needs to receive, and is penetrated to be launched if not, executing the control radio frequency power amplification module
Frequency signal carries out power amplification, to obtain the operation of the first radiofrequency signal；And
For when the signal type of the radiofrequency signal to be launched is the second signal type, judging whether simultaneously
The radiofrequency signal of first signal type is received, is treated if not, executing the control radio frequency power amplification module
The radiofrequency signal of transmitting carries out power amplification, to obtain the first radiofrequency signal.
As an alternative embodiment, in second aspect of the embodiment of the present invention：
The control module, be additionally operable to judge the isolation between the first antenna and second antenna whether be more than
Specified threshold is put if so, executing the control radio frequency power amplification module and carrying out power to radiofrequency signal to be launched
Greatly, to obtain the operation of the first radiofrequency signal.
As an alternative embodiment, in second aspect of the embodiment of the present invention：
The control module is additionally operable to controlling the radio frequency power amplification module to radiofrequency signal progress work(to be launched
Rate is amplified, before obtaining the first radiofrequency signal, the signal type of the radiofrequency signal to be launched is detected, when described to be launched
The signal type of radiofrequency signal when being first signal type, when obtaining the radiofrequency signal for transmitting the second signal type
The first transmission time slot；And the first working time slot when judging to emit the radiofrequency signal of first signal type with it is described
Whether the first transmission time slot conflicts, if so, adjustment first working time slot so that first working time slot be staggered it is described
First transmission time slot；And
When the signal type of the radiofrequency signal to be launched is the second signal type, transmission described first is obtained
The second transmission time slot when the radiofrequency signal of signal type；And when judging to emit the radiofrequency signal of the second signal type
The second working time slot whether conflict with second transmission time slot, if so, adjustment second working time slot, so that described
Second working time slot is staggered second transmission time slot；
And the control module controls the radio frequency power amplification module and is put to radiofrequency signal progress power to be launched
Greatly, it is specially in a manner of obtaining the first radiofrequency signal：
The control module is according to described in the first working time slot after adjustment or the second working time slot control after adjustment
Radio frequency power amplification module carries out power amplification to the radiofrequency signal to be launched, to obtain the first radiofrequency signal.
As an alternative embodiment, in second aspect of the embodiment of the present invention, the radio-frequency front-end radiating circuit
Further include match circuit, wherein：
The radio frequency power amplification module is used to first radiofrequency signal being sent to the mode of the low-pass filter
Specially：
The radio frequency power amplification module is for sending first radiofrequency signal to the match circuit, by the matching
Circuit first radiofrequency signal is filtered, and will be obtained after filtering according to the cutoff frequency of the match circuit first
Radio frequency subsignal is sent to the low-pass filter；
Wherein, the match circuit is T-type or π type capacitor and inductor match circuits, at the cutoff frequency of the match circuit
In the tranmitting frequency of second radiofrequency signal and between being disturbed receives frequency, the receives frequency that is disturbed is the movement
By the receives frequency of the receiver of second radiofrequency signal interference in terminal.
The third aspect of the embodiment of the present invention discloses a kind of mobile terminal, which is characterized in that including：
It is stored with the memory of executable program code；
The processor coupled with the memory；
Any one of them radio-frequency front-end radiating circuit disclosed in second aspect of the embodiment of the present invention；
Wherein, the processor calls the executable program code stored in the memory, and it is real to execute the present invention
Apply any one of them signal transmitting method disclosed in a first aspect.
Fourth aspect of the embodiment of the present invention discloses a kind of computer readable storage medium, stores computer program, wherein
The computer program makes computer execute the disclosed any one method of first aspect of the embodiment of the present invention.
The 5th aspect of the embodiment of the present invention discloses a kind of computer program product, when the computer program product is calculating
When being run on machine so that the computer executes the disclosed any one method of first aspect of the embodiment of the present invention.
Compared with prior art, the embodiment of the present invention has the advantages that：
The embodiment of the present invention includes radio-frequency front-end radiating circuit first use radio frequency power amplification module to radiofrequency signal into
Then row power amplification is filtered radiofrequency signal using low-pass filter, the access Insertion Loss of radio frequency link can be reduced, into
And it is smaller to decay caused by the signal that radio-frequency power amplifier emits so that the energy of radio-frequency power amplifier transmitting can be more
Add the power consumption for being efficiently transported to antenna namely the radio-frequency front-end radiating circuit lower.
Description of the drawings
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to needed in the embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for ability
For the those of ordinary skill of domain, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is a kind of flow diagram of signal transmitting method disclosed by the embodiments of the present invention；
Fig. 2 is a kind of structural schematic diagram of radio-frequency front-end radiating circuit disclosed by the embodiments of the present invention；
Fig. 3 is a kind of Insertion Loss datagram of low-pass filter disclosed by the embodiments of the present invention；
Fig. 4 is a kind of Insertion Loss datagram of bandpass filter disclosed by the embodiments of the present invention；
Fig. 5 is a kind of power consumption diagram of radio-frequency front-end radiating circuit disclosed by the embodiments of the present invention；
Fig. 6 is the flow diagram of another signal transmitting method disclosed by the embodiments of the present invention；
Fig. 7 is a kind of flow diagram of control module adjustment signal transmission time slot disclosed by the embodiments of the present invention；
Fig. 8 is a kind of data transmission slots exemplary plot disclosed by the embodiments of the present invention；
Fig. 9 is a kind of 3GPP protocol authentications test result figure disclosed by the embodiments of the present invention；
Figure 10 is the structural schematic diagram of another radio-frequency front-end radiating circuit disclosed by the embodiments of the present invention；
Figure 11 is the flow diagram of another signal transmitting method disclosed by the embodiments of the present invention；
Figure 12 is another kind 3GPP protocol authentication test structure figures disclosed by the embodiments of the present invention；
Figure 13 is a kind of structural schematic diagram of mobile terminal disclosed by the embodiments of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.Based on this
Embodiment in invention, every other reality obtained by those of ordinary skill in the art without making creative efforts
Example is applied, shall fall within the protection scope of the present invention.
It should be noted that the term " comprising " and " having " in the embodiment of the present invention and attached drawing and their any changes
Shape, it is intended that cover and non-exclusive include.Such as contain the process of series of steps or unit, method, system, product or
Equipment is not limited to the step of having listed or unit, but further includes the steps that optionally not listing or unit or optional
Ground further includes for the intrinsic other steps of these processes, method, product or equipment or unit.
The embodiment of the invention discloses a kind of signal transmitting method and radio-frequency front-end radiating circuits, can reduce radio-frequency front-end
The power consumption of radiating circuit.It is described in detail separately below.
Embodiment one
Referring to Fig. 1, Fig. 1 is a kind of flow diagram of signal transmitting method disclosed by the embodiments of the present invention.Wherein, scheme
Signal transmitting method described in 1 is applied to radio-frequency front-end radiating circuit shown in Fig. 2.
As shown in Fig. 2, the radio-frequency front-end radiating circuit may include：Radio frequency power amplification module 201, low-pass filter
202, switch module 203, radio-frequency antenna 204 and control module 205.Specifically, control circuit 205 may include base band core
Piece, transceiver (Transceiver) chip etc. be not in unit shown in Figure 2.
Radio-frequency front-end radiating circuit shown in Fig. 2 is suitable for wearable devices or the intelligence such as smartwatch, Intelligent bracelet
Hand-held mobile terminals, the embodiment of the present invention such as energy mobile phone, tablet computer, private tutor's machine do not limit.Wherein, above-mentioned wearable to set
Standby and/or hand-held mobile terminal operating system may include but be not limited to Android operation system, IOS operating system,
Symbian (Saipan) operating system, Black Berry (blackberry, blueberry) operating system, Windows Phone8 operating systems etc., this
Inventive embodiments do not limit.
As shown in Figure 1, the signal transmitting method may comprise steps of：
101, control module control radio frequency power amplification module carries out power amplification to radiofrequency signal to be launched, to obtain
First radiofrequency signal.
In the embodiment of the present invention, radiofrequency signal to be launched may include TD-LTE, time division multiple acess (Time Division
Multiple Access, TDMA), frequency division duplex LTE (Frequency Division Duplexing-LTE, FDD-LTE) etc.
Cellular mobile network signal can also include the wireless signals such as Wi-Fi, bluetooth.That is, during the present invention is implemented, it is to be launched
The signal type of radiofrequency signal can be honeycomb movable signal, can also be wireless signal, the embodiment of the present invention does not limit.
102, the first radiofrequency signal is sent to low-pass filter by radio frequency power amplification module.
103, the first radiofrequency signal of low-pass filter pair is filtered, to obtain the second radiofrequency signal.
In the embodiment of the present invention, radiofrequency signal is filtered using low-pass filter, access Insertion Loss can be reduced and (be inserted into
Loss, Insertion Loss, abbreviation Insertion Loss, similarly hereinafter).It is disclosed by the embodiments of the present invention also referring to Fig. 3 and Fig. 4, Fig. 3
A kind of Insertion Loss datagram of low-pass filter, Fig. 4 are a kind of Insertion Loss datagrams of bandpass filter disclosed by the embodiments of the present invention.
Wherein, Fig. 3 abscissas are frequency [MHz], and ordinate is insertion loss [dB], and 6 mark points are shown in Fig. 3
(MARKER 1~6).
Fig. 4 abscissas are frequency [MHz], and ordinate is insertion loss [dB], and the bandpass filter is shown in Fig. 4
Centre frequency (Center Frequency) and the minimum value (min.) of insertion loss, standard value (typ.), maximum value
(max.) parameters such as.
In conjunction with Fig. 3 and Fig. 4, by taking the TD-LTE signals of frequency range B40 (passband 2300MHz-2400MHz) as an example, in Fig. 4
It can be seen that (Marker 5 marks shown position), insertion loss of the low-pass filter in the frequency range is 0.264dB.And scheming
As can be seen that insertion loss standard value of the bandpass filter in frequency range B40 is 2.7dB in 4, the difference of the two has been more than 2.4dB.
As it can be seen that the Insertion Loss of low-pass filter is relatively low.
Meanwhile please refer to fig. 5, Fig. 5 is a kind of power consumption of radio-frequency front-end radiating circuit disclosed by the embodiments of the present invention
Figure.Wherein, the filter of a radio-frequency front-end radiating circuit uses low-pass filter, the filter of another radio-frequency front-end radiating circuit
Wave device uses bandpass filter.When being tested, the voltage of above-mentioned two radio-frequency front-end radiating circuit is limited to 3.8V, transmitting
Radiofrequency signal be TD-LTE signals, frequency range B40.In fig. 5 it can be seen that the radio-frequency front-end using low-pass filter emits
Electric current when circuit works is smaller, especially under the middle high transmitting power of TD-LTE, it can be clearly seen that electricity when its work
Stream is smaller.In the case of voltage constant, electric current is smaller, and power consumption is lower.The Insertion Loss of radio frequency link is lower, is put to radio-frequency power
The attenuation for the signal that big module emits is smaller, so as to reduce the power consumption of entire radio-frequency front-end radiating circuit, makes
Antenna can be more efficiently transported to by obtaining the signal that radio frequency power amplification module emits, so that same in transmission power
Deng in the case of, the signal energy for being transmitted to antenna is stronger.
104, the connection between control module control switch module conducting low-pass filter and radio-frequency antenna, so that low pass filtered
Second radiofrequency signal is sent to radio-frequency antenna by wave device.
105, radio-frequency antenna emits the second radiofrequency signal.
In the embodiment of the present invention, the signal type of radiofrequency signal to be launched may include the first signal type and the second letter
Number type.First signal type uses different communication protocol from the radiofrequency signal of second signal type.Such as when the first letter
Number type is honeycomb movable signal (such as TD-LTE signals, FDD-LTE signals, CDMA (Code Division Multiple
Access, CDMA) signal etc.) when, second signal type is wireless signal (such as Wi-Fi signal)；When the first signal type is nothing
When line signal (such as Wi-Fi signal, Bluetooth signal), second signal type is honeycomb movable signal.
Correspondingly, radio-frequency antenna includes first antenna and the second antenna, and the first signal type is corresponding with first antenna, and second
Signal type is corresponding with the second antenna.It should be noted that first antenna and the second antenna mean to be used for transmission it is different types of
The antenna of radiofrequency signal, in actual product, the quantity of radio-frequency antenna can be equal to or more than two, and " first " and " second " does not answer
Constitute the restriction to radio-frequency antenna.
Therefore, the connection between control module control switch module conducting low-pass filter and radio-frequency antenna, so that low pass
Filter by the second radiofrequency signal be sent to radio-frequency antenna and radio-frequency antenna emit the mode of the second radiofrequency signal specifically can be with
For：
When the signal type of radiofrequency signal to be launched is the first signal type, control module controls switch module conducting
Connection between low-pass filter and first antenna, so that the second radiofrequency signal is sent to first antenna by low-pass filter, the
One antenna emits the second radiofrequency signal；
When the signal type of radiofrequency signal to be launched is second signal type, control module controls switch module conducting
Connection between low-pass filter and the second antenna, so that the second radiofrequency signal is sent to the second antenna by low-pass filter, the
Two antennas emit the second radiofrequency signal.
For example, when the signal type of radiofrequency signal to be launched is TD-LTE signals, control module control switch
The circuit between low-pass filter and TD-LTE antennas is connected in module, and LTE antenna emits TD-LTE signals；When radio frequency to be launched
When the signal type of signal is Wi-Fi signal, control module controls between switch module conducting low-pass filter and Wi-Fi antennas
Circuit, Wi-Fi antennas emit Wi-Fi signal.
In the embodiment of the present invention, for the wearable device of small volume, the battery volume carried is also relatively
Small, battery capacity is relatively low.Therefore, cruising ability be in wearable device R&D process one needed to be considered it is important because
Element.As it can be seen that in the signal transmitting method described in Fig. 1, using low-pass filter obtain radio frequency power amplification module
The first radiofrequency signal be filtered, and by obtained the second radiofrequency signal after antenna transmitting filtering, can be effectively reduced
The power consumption of radio-frequency front-end radiating circuit extends wearable device so as to reduce the electric quantity consumption in data transmission procedure
Provide better usage experience to the user cruise duration.
Embodiment two
With the development of the communication technology, multiple radio receiving transmitting modules can be generally configured in mobile terminal.Due to smartwatch,
The volumetric constraint of the mobile terminals such as smart mobile phone, distribution of these radio receiving transmitting modules in mobile terminal are often close in one
It rises.When these different radio receiving transmitting modules work at the same time, these modules are interfering with each other just will produce in equipment coexist it is dry
It disturbs.Mutual interference can reduce the quality of desired signal or lead to loss of data, greatly affected the usage experience of user.
One type of mutual interference is the mutual interference between Wi-Fi signal and LTE signals, due to Wi-Fi signal
Working frequency range is different from the working frequency range of LTE signals, and therefore, the mutual interference between Wi-Fi signal and LTE signals is generally neighbour
Frequency interferes.Wi-Fi signal includes with the main typical scene that LTE signal coexistences are interfered：Frequency range is the hair of the TD-LTE signals of B40
Blackberry lily disturbs the reception of Wi-Fi signal；The reception for the TD-LTE signals that the transmitting interference band of Wi-Fi signal is B40；Frequency range is B7
FD-LTE signals transmitting interference Wi-Fi signal reception etc..
Referring to Fig. 6, Fig. 6 is the flow diagram of another signal transmitting method disclosed by the embodiments of the present invention.Such as Fig. 6
Shown, which may comprise steps of：
601, control module detects the signal type of radiofrequency signal to be launched, when the class signal of radiofrequency signal to be launched
When type is the first signal type, step 602 is executed.
602, control module judges whether to receive the radiofrequency signal of second signal type simultaneously, if so, executing step
603, if not, directly executing step 607.
In the embodiment of the present invention, while control module judges that radiofrequency signal to be launched is the first signal type,
Also judge to receive the radiofrequency signal of second signal type, then needing to consider the radiofrequency signal and second of the first signal type
The case where there are mutual interferences between the radiofrequency signal of signal type.The following contents by taking TD-LTE signals and Wi-Fi signal as an example,
The radio frequency for describing radiofrequency signal and second signal type that how signal transmitting method shown in fig. 6 reduces the first signal type is believed
Mutual interference between number.It will appreciated by the skilled person that executing signal transmitting method shown in fig. 6 can also drop
Situations such as mutual interference, Bluetooth signal between low CDMA signals and LTE signals and the mutual interference between LTE signals, TD-
The example of LTE signals and Wi-Fi signal should not constitute the restriction to this method.
For TD-LTE signals and Wi-Fi signal, interfered since the type of its mutual interference is generally adjacent frequency, and adjacent frequency
The most probable producing cause of interference is that transmitter and receiver error is occurring with closing：The signal of transmitter transmitting can not
It is enough all to be received by the frequency range that received, there is the case where being received by adjacent band.Therefore, if control module is detecting
Go out radiofrequency signal to be launched be the first signal type (such as LTE signals) while, judge not receive second signal type
The radiofrequency signal of (such as Wi-Fi signal), then can consider that the probability that current time LTE signal and Wi-Fi signal coexist is relatively low,
It can put aside the mutual interference between LTE signals and Wi-Fi signal, directly execute step 607~step 611, pass through Fig. 2
Shown in radio-frequency front-end radiating circuit realize the transmitting of radiofrequency signal, to while ensureing communication quality, before reduction radio frequency
Hold the power consumption of radiating circuit.
If control module is detecting that radiofrequency signal to be launched is the same of the first signal type (such as TD-LTE signals)
When, judge the radiofrequency signal for receiving second signal type (such as Wi-Fi signal) namely current time be TD-LTE signals with
The scene that Wi-Fi signal coexists requires consideration for how to reduce the mutual interference between the signal of unlike signal type.It is general next
It says, TD-LTE transmitters also will produce letter of the part other than working frequency range when emitting the signal of (such as B40) in working frequency range
Number, these signals fallen outside working frequency range are known as out-of-band radiation, and out-of-band radiation includes that adjacent frequency caused by modulation radiates and with outer
Stray radiation.Wi-Fi receivers can not be distinguished effectively when receiving signal and fall into (such as above-mentioned band of the interference signal in channel
External radiation) and useful signal, therefore lead to the generation of mutual interference.Signal transmitting method shown in fig. 6 is applied to shown in Fig. 2
Radio-frequency front-end radiating circuit, since radio-frequency front-end radiating circuit shown in Fig. 2 uses low-pass filter as filter element, suppression
The ability of out-of-band radiation processed is relatively low, may improve the probability that mutual interference is generated between LTE signals and Wi-Fi signal, therefore,
The embodiment of the present invention executes step 603 when judging that LTE signals coexist with Wi-Fi signal.
603, control module judges whether the first antenna in radio-frequency antenna and the isolation between the second antenna are more than to refer to
Threshold value is determined, if so, step 607 is directly executed, if not, executing step 604.
In the embodiment of the present invention, the first signal type corresponds to first antenna, and second signal type corresponds to the second antenna.Such as
It says, when the first signal type is TD-LTE signals, second signal type is Wi-Fi signal, and first antenna is TD-LTE antennas,
Second antenna is Wi-Fi antennas.When the isolation between first antenna and the second antenna is sufficiently large (for example, being more than specified threshold
When), even if current time, there are the coexistence scenario of TD-LTE signals and Wi-Fi signal, the TD-LTE signals of first antenna transmitting
The probability received by the second antenna also can be relatively low, and there are mutual interferences between TD-LTE signals and Wi-Fi signal at this time
Possibility is smaller.Wherein, above-mentioned specified threshold can be a threshold value obtained by many experiments, when first antenna and second
When isolation between antenna exceeds the threshold value, the possibility for generating mutual interference is smaller；When first antenna and the second antenna it
Between isolation be less than the threshold value when, the possibility for generating mutual interference is larger.For example, which can be set as
15dB.It should be noted that anti-interference ability of physical distance or receiver between first antenna and the second antenna etc. because
Element may all influence the size of the threshold value.Therefore, the size of the specified threshold can be any values such as 10dB, 15dB, 20dB,
The embodiment of the present invention is not limited.
604, the first transmission time slot when the radiofrequency signal of control module acquisition transmission second signal type.
605, the first working time slot when control module judges the radiofrequency signal of the first signal type of transmitting and above-mentioned the
Whether one transmission time slot conflicts, if so, step 606 is executed, if not, directly executing step 607.
606, the first working time slot when the radiofrequency signal of the first signal type of control module adjustment transmitting, so that after adjustment
The first working time slot be staggered the first transmission time slot.
In the embodiment of the present invention, the radiofrequency signal that mobile terminal transmits second signal type includes emitting and receiving the second letter
The radiofrequency signal of number type, therefore, the first transmission time slot include transmission time slot when emitting the radiofrequency signal of second signal type
With receive second signal type radiofrequency signal when reception time slot.Control module executes step 605 and judges the first transmission time slot
Whether do not conflict with above-mentioned transmission time slot and reception time slot.
It is the stream that a kind of control module disclosed by the embodiments of the present invention adjusts signal transmission time slot also referring to Fig. 7, Fig. 7
Journey schematic diagram.As shown in fig. 7, WLAN firmwares (WLAN firmware) send its current state and lower a period of time to control module
Carve the event to be executed (transmitting Wi-Fi signal receives Wi-Fi signal)；Similarly, LTE router (LTE Modem) is to control
Molding block sends its current state and the subsequent time event to be executed (transmitting LTE signals receive LTE signals).If control
Molding block judges that the current state of LTE router is to open, and the subsequent time event to be executed is transmitting LTE signals,
Meanwhile control module also judges that the current state of WLAN firmwares is to open, and the subsequent time event to be executed is transmission
(transmitting receives) Wi-Fi signal suspends the transmitting of LTE signals then control module sends control information to LTE router,
Until WLAN firmwares indicate that the frame Wi-Fi signal is transmitted；Alternatively, control module sends control information to WLAN firmwares, temporarily
Stop the transmission of Wi-Fi signal, until LTE router indicates that the transmitting of frame LTE signals is completed.As it can be seen that executing stream shown in Fig. 7
Journey, working time slot when control module can be to transmitting LTE signals are adjusted so that working time slot when transmitting LTE signals
Transmission time slot when the transmission Wi-Fi signal that is staggered.
Fig. 8 is please participated in together, and Fig. 8 is a kind of data transmission slots exemplary plot disclosed by the embodiments of the present invention.Such as Fig. 8 institutes
Show, the transmission time (including emit or receive) of WLAN data (WLAN DATA, i.e. Wi-Fi signal) is in former and later two TD-LTE
Between emitting signal (LTE TX), the transmission time slot of the working time slot and Wi-Fi signal that emit TD-LTE signals is completely misaligned,
That is the transmission time slots of TD-LTE signals (radiofrequency signal of the first signal type) is staggered, and Wi-Fi signal (penetrate by second signal type
Frequency signal) transmission time slot further decreased so as to reduce the probability of TD-LTE signals and Wi-Fi signal simultaneous transmission
The mutual interference of TD-LTE signals and Wi-Fi signal.
607, control module control radio frequency power amplification module carries out power amplification to radiofrequency signal to be launched, to obtain
First radiofrequency signal.
In the embodiment of the present invention, if control module is executing step 606 and then executing step 607, mould is controlled
The mode that block executes step 607 is specifically as follows：
Control module believes radio frequency to be launched according to the first working time slot control radio frequency power amplification module after adjustment
Number carry out power amplification, to obtain the first radiofrequency signal.
In the embodiment of the present invention, step 608~step 611 is identical as step 102~step 105 in embodiment one, with
Lower content repeats no more.
It should be noted that in the embodiment of the present invention, control module executes step 602, step 603, step 605 in logic
On uninevitable sequencing, that is to say, that as long as control module is judged to meet the either condition in following three conditions,
Step 607 can directly be executed：
When emitting the radiofrequency signal of the first signal type, there is no the radio frequency letters for receiving second signal type simultaneously
Number；
The isolation between first antenna and the second antenna in radio-frequency antenna is more than specified threshold；
The first working time slot and the radio frequency of transmission second signal type when emitting the radiofrequency signal of the first signal type are believed
Number when the first transmission time slot do not conflict.
In addition, in embodiments of the present invention, when control module executes the letter that step 601 detects radiofrequency signal to be launched
When number type is second signal type, control module can execute following steps:
Control module judges whether to receive the radiofrequency signal of the first signal type simultaneously, if so, step 603 is executed,
If not, directly executing step 607.
If control module, which executes step 603, judges the first antenna in radio-frequency antenna and the isolation between the second antenna
Degree is more than specified threshold, then directly executes step 607, and otherwise, control module executes following steps：
Control module obtains the second transmission time slot when the radiofrequency signal of the first signal type of transmission.
Control module judges that the second working time slot when the radiofrequency signal of transmitting second signal type is passed with above-mentioned second
Whether defeated time slot conflicts, if not, step 607 is directly executed, if so, control module adjustment transmitting second signal type is penetrated
The second working time slot when frequency signal so that the second working time slot after adjustment is staggered the second transmission time slot, and according to adjustment after
The second working time slot control radio frequency power amplification module power amplification is carried out to radiofrequency signal to be launched, penetrated with obtaining first
Frequency signal.
As it can be seen that in the method described in Fig. 6, when the radiofrequency signal that signal type to be launched is the first signal type
When, whether automatic decision meets the either condition in following three conditions：The radio frequency of second signal type need not be received simultaneously
Signal；Isolation between first antenna and the second antenna is more than specified threshold；First working time slot and the first transmission time slot are not
Conflict.When judging to meet any of the above-described condition, the radiofrequency signal of the first signal type is believed with the radio frequency of second signal type
Probability between number there are mutual interference is relatively low, executes step 607~step 611 again at this time, can reduce mutual interference to logical
Believe the influence of quality.In addition, in the method described in Fig. 6, if it is judged that when the radiofrequency signal of the first signal type of transmitting
The first working time slot with transmission second signal type radiofrequency signal when the first transmission time slot generation conflict, can also automatically
First working time slot is adjusted, the first working time slot is made to be staggered the first transmission time slot, to further reduced coexist it is dry
Disturb the influence to communication quality.
Embodiment three
Currently, the cellular mobile network that different communication operator provides covers different frequency ranges, especially TD-LTE signals.
The frequency range of TD-LTE signals that the country uses covering includes：B39(1880MHz-1920MHz)/B40(2300MHz-2400MHz)/
B41(2496MHz-2690MHz)。
B40 is typically used as indoor supplement frequency range, and B39 is covered in open outdoor area more.In order to ensure the normal of communication
Operation, mobile terminal on the market generally all support the transmitting and reception of multiple frequency range honeycomb movable signals.Assuming that current time
There are two mobile terminals of physical distance relative close, terminal A and terminal B, two mobile terminals are being carried out with base station
Communication.Terminal A is in the signal uplink stage, and frequency range B41, terminal B are in signal downlink stage, frequency range B40.Ideal situation
Under, since the signal tranmitting frequency and the frequency reception signal of terminal B of terminal A differ, two between mobile terminal and base station
Communication do not interfere with each other.However, since terminal A will produce out-of-band radiation when emitting signal, terminal B can not when receiving signal
Complete filtering interference signals, therefore, the signal of terminal A transmittings may be received by terminal B, to generate clutter interference.
It should be noted that TD-LTE is a kind of mechanics of communication and standard based on 3GPP.A certain equipment exists in order to prevent
Clutter interference is generated to other equipment when emitting signal, 3GPP agreements are provided with test event, for limiting the miscellaneous of transmitting signal
Scattered signal falls on the energy in other reception frequency ranges.Since low-pass filter can only prevent signal of the frequency higher than its cutoff frequency
Pass through, if using radio-frequency front-end radiating circuit shown in Fig. 2, mobile terminal, can only be by frequency higher than hair when emitting signal
The target signal filter of radio frequency rate, can not rejection frequency be less than tranmitting frequency signal.Therefore, if at the tranmitting frequency of mobile terminal
In B41 frequency ranges, then the transmitting signal of B41 is fallen, the spurious signal energy received in frequency range in B40 is larger, and easy increase is above-mentioned
The risk of test event authentification failure.It is specifically a kind of 3GPP agreements disclosed by the embodiments of the present invention also referring to Fig. 9, Fig. 9
Authentication test result figure carries out being based on radio-frequency front-end radiating circuit shown in Fig. 2, application drawing 1 or letter shown in fig. 6 when the test
Number launching technique.As shown in figure 9, the index line (in Fig. 9 shown in Upper Limit) of the test event is -50.0dB, test
Go out the energy that B41 transmitting signals are fallen into B40 reception frequency ranges and is below this (in Fig. 9 shown in Measured Power Inside)
Index line, but its peak value is -53.5dBm (in Fig. 9 at 2391.5MHz), the surplus very little of range index line, therefore the test item
The risk of mesh authentification failure is larger.
Preferably, a match circuit is added in radio-frequency front-end radiating circuit that can be shown in Fig. 2.Specifically such as Figure 10 institutes
Show, Figure 10 is the structural schematic diagram of another radio-frequency front-end radiating circuit disclosed by the embodiments of the present invention.Based on shown in Fig. 10
Radio-frequency front-end radiating circuit, the embodiment of the present invention disclose another signal transmitting method.It is this hair also referring to Figure 11, Figure 11
The flow diagram of another signal transmitting method disclosed in bright embodiment.
As shown in figure 11, which includes the following steps：
Wherein, step 1101~step 1107 is identical as 601~step 607 of above-mentioned steps, and the following contents repeats no more.
1108, radio frequency power amplification module emits the first radiofrequency signal to match circuit.
1109, match circuit is filtered according to its first radiofrequency signal of cutoff frequency pair, first will obtained after filtering
Radio frequency subsignal is sent to low-pass filter.
In the embodiment of the present invention, match circuit can be made of capacitance and inductance, can be T-type or π type capacitor and inductors
With circuit, collocation forms a cutoff frequency and is between the tranmitting frequency and the receives frequency being disturbed of the second radiofrequency signal
High-pass filter is disturbed the receives frequency that receives frequency is the receiver interfered by the second radiofrequency signal in mobile terminal.
For example, if the tranmitting frequency of the second radiofrequency signal is in frequency range B41 (2496MHz-2690MHz), the reception being disturbed
The receives frequency of machine is in B40 (2300MHz-2400MHz), then the cutoff frequency of match circuit could be provided as being in B40
Between B41, that is, it is arranged between 2400MHz-2496MHz.
It is another kind 3GPP protocol authentication test result figures disclosed by the embodiments of the present invention also referring to Figure 12, Figure 12,
It carries out being based on radio-frequency front-end radiating circuit shown in Fig. 10 when the test, signal transmitting method shown in application drawing 11.Such as Figure 12
Shown, test show that B41 transmitting signals fall into B40 and receive energy (Measured Power Inside institutes in Figure 12 in frequency range
Show) it is still below the index line (in Figure 12 shown in Upper Limit) of the test event, and test and obtain B41 transmitting letters
It is -67.5dBm (in Figure 12 2376.5MHz at) number to fall into the energy peak that B40 is received in frequency range, the increasing at a distance from index line
Greatly, it is seen then that the spurious signal that signal transmitting method shown in implementation Figure 11 can effectively reduce transmitting signal falls on other receptions
Energy in frequency range reduces the risk of 3GPP protocol authentications failure, reduces mobile terminal and is produced to other equipment when emitting signal
The probability of raw clutter interference.
1110, the first radio frequency of low-pass filter pair subsignal is filtered, to obtain the second radiofrequency signal.
1111, the connection between control module control switch module conducting low-pass filter and radio-frequency antenna, so that low pass
Second radiofrequency signal is sent to radio-frequency antenna by filter.
1112, radio-frequency antenna emits the second radiofrequency signal.
As it can be seen that method described in application drawing 11, first passes through match circuit and carries out first time filtering to radiofrequency signal, then lead to
It crosses low-pass filter second is carried out to radiofrequency signal and filter, the spurious signal that can effectively reduce transmitting signal falls on other and connects
The energy in frequency range is received, the risk of 3GPP protocol authentications failure is reduced, reduces mobile terminal when emitting signal to other equipment
Generate the probability of clutter interference.
Example IV
Referring to Fig. 2, Fig. 2 is a kind of structural schematic diagram of radio-frequency front-end radiating circuit disclosed by the embodiments of the present invention.Such as
Shown in Fig. 2, which may include：
Radio frequency power amplification module 201, low-pass filter 202, switch module 203, radio-frequency antenna 204 and control module
205；Wherein：
Radio frequency power amplification module 201, for carrying out work(to radiofrequency signal to be launched under the control of control module 205
Rate is amplified, to obtain the first radiofrequency signal；And the first radiofrequency signal is sent to low-pass filter 202；
Low-pass filter 202, for being filtered to the first radiofrequency signal, to obtain the second radiofrequency signal；
Switch module 203, for be connected under the control of control module 205 low-pass filter 202 and radio-frequency antenna 204 it
Between connection so that the second radiofrequency signal is sent to radio-frequency antenna 204 by low-pass filter 202；
Radio-frequency antenna 204, for emitting the second radiofrequency signal；
Control module 205 puts radiofrequency signal progress power to be launched for controlling radio frequency power amplification module 201
Greatly, to obtain the first radiofrequency signal；And control switch module 203 is connected between low-pass filter 202 and radio-frequency antenna 204
Connection so that the second radiofrequency signal is sent to radio-frequency antenna 204 by low-pass filter 202.
In the embodiment of the present invention, the signal type of radiofrequency signal to be launched includes the first signal type and second signal class
Type, when the first signal type is honeycomb movable signal, second signal type is wireless signal；When second signal type is wireless
When signal, the first signal type is honeycomb movable signal；Radio-frequency antenna 204 includes first antenna 2041 and the second antenna 2042,
First signal type corresponds to first antenna 2041, and second signal type corresponds to the second antenna 2042；
Correspondingly, control module 205 for control switch module 203 be connected low-pass filter 202 and radio-frequency antenna 204 it
Between connection so that the second radiofrequency signal is sent to radio-frequency antenna 204 with low-pass filter 202 and radio-frequency antenna 204 is used for
The mode for emitting the second radiofrequency signal is specially：
When the signal type of radiofrequency signal to be launched is the first signal type, control module 205 is switched for controlling
The connection between low-pass filter 202 and first antenna 2041 is connected in module 203, so that low-pass filter 202 is by the second radio frequency
Signal is sent to first antenna 2041, and first antenna 2041 is for emitting the second radiofrequency signal；
When the signal type of radiofrequency signal to be launched is second signal type, control module 205 is switched for controlling
The connection between low-pass filter 202 and the second antenna 2042 is connected in module 203, so that low-pass filter 202 is by the second radio frequency
Signal is sent to the second antenna 2042, and the second antenna 2042 is for emitting the second radiofrequency signal.
As it can be seen that radio-frequency front-end radiating circuit shown in Fig. 2 using low-pass filter as filter element, low-pass filter
Access Insertion Loss is relatively low, so as to reduce the power consumption of entire radio-frequency front-end radiating circuit, reduces the mobile terminals such as wearable device
Electric quantity consumption in data transmission procedure extends its cruise duration.Further, the production cost of low-pass filter is far below
Bandpass filter can reduce the manufacturing cost of radio-frequency front-end radiating circuit, and then reduce the manufacturing cost of mobile terminal, favorably
In the promotion and popularization of mobile terminal.In addition, radio-frequency front-end radiating circuit shown in Fig. 2 uses relatively small number of element, but still
It can so ensure communication quality, it is seen then that radio-frequency front-end radiating circuit shown in Fig. 2 can also save cloth plate suqare, more be applicable in
In sensitive to cloth plate suqare, the wearable device of smaller size smaller is needed.
Embodiment five
Referring to Fig. 10, Figure 10 is a kind of structural schematic diagram of radio-frequency front-end radiating circuit disclosed by the embodiments of the present invention.
Wherein, radio-frequency front-end radiating circuit shown in Fig. 10 is that radio-frequency front-end radiating circuit as shown in Figure 2 optimizes.With
Radio-frequency front-end radiating circuit shown in Fig. 2 is compared, in radio-frequency front-end radiating circuit shown in Fig. 10：
Control module 205 is additionally operable to detect the signal type of radiofrequency signal to be launched, when detecting radio frequency to be launched
When the signal type of signal is the first signal type, judge that the mobile terminal for applying radio-frequency front-end radiating circuit shown in Fig. 10 is
The no radiofrequency signal for existing simultaneously second signal type needs to receive, if not, it is right to execute control radio frequency power amplification module 201
Radiofrequency signal to be launched carries out power amplification, to obtain the operation of the first radiofrequency signal；
Optionally, control module 205 are additionally operable to judge that the isolation between first antenna 2041 and the second antenna 2042 is
No is more than specified threshold, is put if so, executing control radio frequency power amplification module 201 and carrying out power to radiofrequency signal to be launched
Greatly, to obtain the operation of the first radiofrequency signal.
Further alternative, control module 205 is additionally operable to penetrate to be launched in control radio frequency power amplification module 201
Frequency signal carries out power amplification, before obtaining the first radiofrequency signal, to detect the signal type of radiofrequency signal to be launched；
When the signal type of radiofrequency signal to be launched is the first signal type, penetrating for transmission second signal type is obtained
The first transmission time slot when frequency signal；And judge emit the first signal type radiofrequency signal when the first working time slot with
Whether the first transmission time slot conflicts, if so, the first working time slot of adjustment, so that the first working time slot is staggered when the first transmission
Gap；And
When the signal type of radiofrequency signal to be launched is second signal type, penetrating for the first signal type of transmission is obtained
The second transmission time slot when frequency signal；And judge emit second signal type radiofrequency signal when the second working time slot with
Whether the second transmission time slot conflicts, if so, the second working time slot of adjustment, so that the second working time slot is staggered when the second transmission
Gap；
Correspondingly, control module 205 controls the radiofrequency signal that radio frequency power amplification module 201 is penetrated and carries out power amplification, with
The mode for obtaining the first radiofrequency signal is specially：
Control module 205 controls radio frequency work(according to the first working time slot after adjustment or the second working time slot after adjustment
Rate amplification module 201 carries out power amplification to radiofrequency signal to be launched, to obtain the first radiofrequency signal.
In addition, compared with radio-frequency front-end radiating circuit shown in Fig. 2, radio-frequency front-end radiating circuit shown in Fig. 10 can be with
Including：
Match circuit 206, the first radiofrequency signal for receiving the transmission of radio frequency power amplification module 201, and according to matching
The first radiofrequency signal of cutoff frequency pair of circuit 206 is filtered, and the first radio frequency subsignal obtained after filtering is sent to low
Bandpass filter 202；
That is, the mode that radio frequency power amplification module 201 is used to the first radiofrequency signal being sent to low-pass filter 202 is specific
Can be：
Radio frequency power amplification module 201 for send the first radiofrequency signal to match circuit 206, it is right by match circuit 206
First radiofrequency signal is filtered, and the first radio frequency subsignal obtained after filtering is sent to low-pass filter 202.
Wherein, match circuit 206, can be T-type or π type capacitor and inductor match circuits, and collocation forms a cutoff frequency
High-pass filter between tranmitting frequency and the receives frequency being disturbed in the second radiofrequency signal, being disturbed receives frequency is
By the receives frequency of the receiver of the second radiofrequency signal interference in mobile terminal.
It, can be in judging to meet following three conditions as it can be seen that implement radio-frequency front-end radiating circuit shown in Fig. 10
When either condition, then emit radiofrequency signal：The radiofrequency signal that another signal type need not be received simultaneously (emits the first signal
The radiofrequency signal of second signal type need not be received when the radiofrequency signal of type simultaneously；Alternatively, transmitting second signal type
It need not receive the radiofrequency signal of the first signal type when radiofrequency signal simultaneously)；Isolation between first antenna and the second antenna
Degree is more than specified threshold；First working time slot does not conflict with the first transmission time slot, alternatively, when the second working time slot and the second transmission
Gap does not conflict；So as to while reducing radio-frequency front-end radiating circuit power consumption, reduce the radiofrequency signal of unlike signal type
Between mutual interference, ensure communication quality.Further, radio-frequency front-end radiating circuit shown in Fig. 10 also uses match circuit
The filtered version combined with low-pass filter, the spurious signal that can effectively reduce transmitting signal are fallen in other reception frequency ranges
Energy reduces the risk of 3GPP protocol authentications failure, reduces mobile terminal and generates spuious do to other equipment when emitting signal
The probability disturbed.
Embodiment six
Please refer to Fig.1 the structural schematic diagram that 3, Figure 13 is a kind of mobile terminal disclosed by the embodiments of the present invention.For the ease of
Illustrate, illustrates only and do not disclosed with the relevant part of the embodiment of the present invention, particular technique details, please refer to the embodiment of the present invention
Method part.The terminal can be include smartwatch, mobile phone, tablet computer, personal digital assistant (Personal Digital
Assistant, PDA), point-of-sale terminal (Point of Sales, POS), the arbitrary mobile terminal such as vehicle-mounted computer, using terminal as intelligence
For energy wrist-watch：
Figure 13 shows the block diagram with the part-structure of the relevant smartwatch of terminal provided in an embodiment of the present invention.Ginseng
Figure 13 is examined, smartwatch includes:
It is stored with the memory 1310 of executable program code；
The processor 1320 coupled with memory 1310；
RF circuits 1330；
Wherein, RF circuits 1330 include any radio-frequency front-end radiating circuits of Fig. 2 or shown in Fig. 10 1331.
It will appreciated by the skilled person that smartwatch structure shown in Figure 13 is not constituted to smartwatch
Restriction, may include either combining certain components or different components arrangement than illustrating more or fewer components.
Each component parts of smartwatch is specifically introduced with reference to Figure 13：
Memory 1310 can be used for storing software program and module, and processor 1320 is stored in memory by operation
1310 software program and module, to execute various function application and the data processing of smartwatch.Memory 1310
Can include mainly storing program area and storage data field, wherein storing program area can storage program area, at least one function institute
The application program (such as sound-playing function, image player function etc.) etc. needed；Storage data field can be stored according to smartwatch
Use created data (such as audio data, phone directory etc.) etc..It is deposited at random in addition, memory 1310 may include high speed
Access to memory, can also include nonvolatile memory, a for example, at least disk memory, flush memory device or other easily
The property lost solid-state memory.
Processor 1320 is the control centre of smartwatch, is coupled with memory 1310, is connected using various interfaces and circuit
The various pieces for connecing entire smartwatch, by running or executing the software program and/or module that are stored in memory 1310,
The executable program code stored in memory 1310 is called, any signal launch party shown in Fig. 1, Fig. 6 or Figure 11 is executed
Method, and the data being stored in memory 1310 are called, the various functions and processing data of smartwatch are executed, to intelligence
It can wrist-watch progress integral monitoring.Optionally, processor 1320 may include one or more processing units；Preferably, processor
1320 can integrate application processor and modem processor, wherein the main processing operation system of application processor, user interface
With application program etc., modem processor mainly handles wireless communication.It is understood that above-mentioned modem processor
It can not be integrated into processor 1320.
RF circuits 1330 can be used for receiving and sending messages or communication process in, signal sends and receivees, particularly, by base station
After downlink information receives, handled to processor 1320；In addition, the data for designing uplink are sent to base station.In general, RF circuits
1330 include but not limited to antenna, at least one amplifier, transceiver, coupler, low-noise amplifier (Low Noise
Amplifier, LNA), duplexer etc..
Wherein, the radio-frequency front-end radiating circuit 1331 in RF circuits 1330 is used for the transmission of signal, radio-frequency front-end transmitting electricity
The function on road 1331 is as described in example IV and embodiment five, and details are not described herein again.
The embodiment of the present invention discloses a kind of computer readable storage medium, stores computer program, wherein the computer
Program makes computer execute any signal transmitting method shown in Fig. 1, Fig. 6 or Figure 11.
The embodiment of the present invention discloses a kind of computer program product, which includes storing computer journey
The non-transient computer readable storage medium of sequence, and the computer program is operable to that computer is made to execute Fig. 1, Fig. 6 or figure
Any signal transmitting method shown in 11.
It should be understood that " one embodiment " or " embodiment " that specification is mentioned in the whole text mean it is related with embodiment
A particular feature, structure, or characteristic includes at least one embodiment of the present invention.Therefore, occur everywhere in the whole instruction
" in one embodiment " or " in one embodiment " not necessarily refer to identical embodiment.In addition, these special characteristics, structure
Or characteristic can in any suitable manner combine in one or more embodiments.Those skilled in the art should also know that
Embodiment described in this description belongs to alternative embodiment, and not necessarily the present invention must for involved action and module
Must.
In various embodiments of the present invention, it should be appreciated that size of the sequence numbers of the above procedures is not meant to execute suitable
The execution sequence of the inevitable priority of sequence, each process should be determined by its function and internal logic, without coping with the embodiment of the present invention
Implementation process constitutes any restriction.
The above-mentioned unit illustrated as separating component may or may not be physically separated, aobvious as unit
The component shown may or may not be object unit, you can is located at a place, or may be distributed over multiple networks
On unit.Some or all of wherein unit can be selected according to the actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in various embodiments of the present invention can be integrated in a processing unit, can also be
Each unit physically exists alone, can also be during two or more units are integrated in one unit.Above-mentioned integrated unit
Both the form that hardware may be used is realized, can also be realized in the form of SFU software functional unit.
If above-mentioned integrated unit is realized in the form of SFU software functional unit and when sold or used as an independent product,
It can be stored in a retrievable memory of computer.Based on this understanding, technical scheme of the present invention substantially or
Person says all or part of of the part that contributes to existing technology or the technical solution, can be in the form of software products
It embodies, which is stored in a memory, including several requests are with so that a computer is set
Standby (can be personal computer, server or network equipment etc., can be specifically the processor in computer equipment) executes
Some or all of each embodiment above method of present invention step.
One of ordinary skill in the art will appreciate that all or part of step in the various methods of above-described embodiment is can
It is completed with instructing relevant hardware by program, which can be stored in a computer readable storage medium, storage
Medium include read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory,
RAM), programmable read only memory (Programmable Read-only Memory, PROM), erasable programmable is read-only deposits
Reservoir (Erasable Programmable Read Only Memory, EPROM), disposable programmable read-only memory (One-
Time Programmable Read-Only Memory, OTPROM), the electronics formula of erasing can make carbon copies read-only memory
(Electrically-Erasable Programmable Read-Only Memory, EEPROM), CD-ROM (Compact
Disc Read-Only Memory, CD-ROM) or other disk storages, magnetic disk storage, magnetic tape storage or can
Any other computer-readable medium for carrying or storing data.
A kind of signal transmitting method disclosed by the embodiments of the present invention and radio-frequency front-end radiating circuit have been carried out in detail above
It introduces, principle and implementation of the present invention are described for specific case used herein, the explanation of above example
It is merely used to help understand the method and its core concept of the present invention.Meanwhile for those of ordinary skill in the art, according to this
The thought of invention, there will be changes in the specific implementation manner and application range, in conclusion the content of the present specification is not answered
It is interpreted as limitation of the present invention.
Claims (13)
1. a kind of signal transmitting method, which is characterized in that the method is applied to radio-frequency front-end radiating circuit, the radio-frequency front-end
Radiating circuit includes radio frequency power amplification module, low-pass filter, switch module, radio-frequency antenna and control module, the side
Method includes：
The control module controls the radio frequency power amplification module and carries out power amplification to radiofrequency signal to be launched, to obtain
First radiofrequency signal；
First radiofrequency signal is sent to the low-pass filter by the radio frequency power amplification module；
The low-pass filter is filtered first radiofrequency signal, to obtain the second radiofrequency signal；
The control module controls the switch module and connection between the low-pass filter and the radio-frequency antenna is connected, with
Make the low-pass filter that second radiofrequency signal is sent to the radio-frequency antenna；
The radio-frequency antenna emits second radiofrequency signal.
2. signal transmitting method according to claim 1, it is characterised in that：
The signal type of the radiofrequency signal to be launched includes the first signal type and second signal type, when first letter
When number type is honeycomb movable signal, the second signal type is wireless signal；When first signal type is wireless communication
Number when, the second signal type be honeycomb movable signal；The radio-frequency antenna includes first antenna and the second antenna, and described
One signal type corresponds to the first antenna, and the second signal type corresponds to second antenna；
The control module controls the switch module and connection between the low-pass filter and the radio-frequency antenna is connected, with
Make the low-pass filter that second radiofrequency signal to be sent to described in the radio-frequency antenna and radio-frequency antenna transmitting
Second radiofrequency signal, including：
When the signal type of the radiofrequency signal to be launched is first signal type, described in the control module control
The connection between the low-pass filter and the first antenna is connected in switch module, so that the low-pass filter is by described
Two radiofrequency signals are sent to the first antenna, and the first antenna emits second radiofrequency signal；
When the signal type of the radiofrequency signal to be launched is the second signal type, described in the control module control
The connection between the low-pass filter and second antenna is connected in switch module, so that the low-pass filter is by described
Two radiofrequency signals are sent to second antenna, and second antenna emits second radiofrequency signal.
3. signal transmitting method according to claim 2, which is characterized in that the control module controls the radio-frequency power
Amplification module carries out power amplification to radiofrequency signal to be launched, and with before obtaining the first radiofrequency signal, the method further includes：
The control module detects the signal type of the radiofrequency signal to be launched, when the letter of the radiofrequency signal to be launched
When number type is first signal type, judge whether the radiofrequency signal for receiving the second signal type simultaneously, if
It is no, it executes the control radio frequency power amplification module and power amplification is carried out to radiofrequency signal to be launched, to obtain first
Radiofrequency signal；
When the signal type of the radiofrequency signal to be launched is the second signal type, judge whether to receive institute simultaneously
The radiofrequency signal of the first signal type is stated, to be launched is penetrated if not, executing the control radio frequency power amplification module
Frequency signal carries out power amplification, to obtain the first radiofrequency signal.
4. signal transmitting method according to claim 2, which is characterized in that the control module controls the radio-frequency power
Amplification module carries out power amplification to radiofrequency signal to be launched, and with before obtaining the first radiofrequency signal, the method further includes：
The control module judges whether the isolation between the first antenna and second antenna is more than specified threshold, such as
Fruit is, executes the control radio frequency power amplification module and carries out power amplification to radiofrequency signal to be launched, to obtain the
One radiofrequency signal.
5. signal transmitting method according to claim 2, which is characterized in that the control module controls the radio-frequency power
Amplification module carries out power amplification to radiofrequency signal to be launched, and with before obtaining the first radiofrequency signal, the method further includes：
The control module detects the signal type of the radiofrequency signal to be launched；
When the signal type of the radiofrequency signal to be launched is first signal type, the control module obtains transmission
The first transmission time slot when the radiofrequency signal of the second signal type；And judge to emit penetrating for first signal type
Whether the first working time slot when frequency signal conflicts with first transmission time slot, if so, described in control module adjustment
First working time slot, first transmission time slot so that the first working time slot after adjustment is staggered；
When the signal type of the radiofrequency signal to be launched is the second signal type, the control module obtains transmission
The second transmission time slot when the radiofrequency signal of first signal type；And judge to emit penetrating for the second signal type
Whether the second working time slot when frequency signal conflicts with second transmission time slot, if so, described in control module adjustment
Second working time slot, second transmission time slot so that the second working time slot after adjustment is staggered；
And the control module controls the radio frequency power amplification module and carries out power amplification to radiofrequency signal to be launched,
To obtain the first radiofrequency signal, including：
The control module controls the radio frequency according to the first working time slot after adjustment or the second working time slot after adjustment
Power amplifier module carries out power amplification to the radiofrequency signal to be launched, to obtain the first radiofrequency signal.
6. according to Claims 1 to 5 any one of them signal transmitting method, which is characterized in that the radio-frequency front-end transmitting electricity
Road further includes match circuit；
First radiofrequency signal is sent to the low-pass filter by the radio frequency power amplification module, including：
The radio frequency power amplification module emits first radiofrequency signal to the match circuit；
The match circuit is filtered first radiofrequency signal according to the cutoff frequency of the match circuit, after filtering
The first obtained radio frequency subsignal is sent to the low-pass filter；Wherein, the match circuit is T-type or π type capacitor and inductors
The cutoff frequency of match circuit, the match circuit is in the tranmitting frequency of second radiofrequency signal and is disturbed receives frequency
Between, the receives frequency that is disturbed is receiving for the receiver interfered by second radiofrequency signal in the mobile terminal
Frequency.
7. a kind of radio-frequency front-end radiating circuit, which is characterized in that including：Radio frequency power amplification module, low-pass filter, switching molding
Block, radio-frequency antenna and control module, wherein：
The radio frequency power amplification module, for carrying out power to radiofrequency signal to be launched under the control of the control module
Amplification, to obtain the first radiofrequency signal；And first radiofrequency signal is sent to the low-pass filter；
The low-pass filter, for being filtered to first radiofrequency signal, to obtain the second radiofrequency signal；
The switch module, for be connected under the control of the control module low-pass filter and the radio-frequency antenna it
Between connection so that second radiofrequency signal is sent to the radio-frequency antenna by the low-pass filter；
The radio-frequency antenna, for emitting second radiofrequency signal；
The control module carries out power amplification for controlling the radio frequency power amplification module to radiofrequency signal to be launched,
To obtain the first radiofrequency signal；And it controls the switch module and is connected between the low-pass filter and the radio-frequency antenna
Connection so that second radiofrequency signal is sent to the radio-frequency antenna by the low-pass filter.
8. radio-frequency front-end radiating circuit according to claim 7, it is characterised in that：
The signal type of the radiofrequency signal to be launched includes the first signal type and second signal type, when first letter
When number type is honeycomb movable signal, the second signal type is wireless signal；When the second signal type is wireless communication
Number when, first signal type be honeycomb movable signal；The radio-frequency antenna includes first antenna and the second antenna, and described
One signal type corresponds to the first antenna, and the second signal type corresponds to second antenna；
The control module is used to control the switch module and company between the low-pass filter and the radio-frequency antenna is connected
It connects, so that second radiofrequency signal is sent to the radio-frequency antenna with the low-pass filter and the radio-frequency antenna is used
It is specially in the mode of transmitting second radiofrequency signal：
When the signal type of the radiofrequency signal to be launched is first signal type, the control module is for controlling
The connection between the low-pass filter and the first antenna is connected in the switch module, so that the low-pass filter is by institute
It states the second radiofrequency signal and is sent to the first antenna, the first antenna is for emitting second radiofrequency signal；
When the signal type of the radiofrequency signal to be launched is the second signal type, the control module is for controlling
The connection between the low-pass filter and second antenna is connected in the switch module, so that the low-pass filter is by institute
It states the second radiofrequency signal and is sent to second antenna, second antenna is for emitting second radiofrequency signal.
9. radio-frequency front-end radiating circuit according to claim 8, it is characterised in that：
The control module is additionally operable to detect the signal type of the radiofrequency signal to be launched, when the radio frequency to be launched
When the signal type of signal is first signal type, judge whether the mobile terminal exists simultaneously the second signal class
The radiofrequency signal of type needs to receive, and believes radio frequency to be launched if not, executing the control radio frequency power amplification module
Number carry out power amplification, to obtain the operation of the first radiofrequency signal；And
For when the signal type of the radiofrequency signal to be launched is the second signal type, judging whether to receive simultaneously
To the radiofrequency signal of first signal type, if not, executing the control radio frequency power amplification module to be launched
Radiofrequency signal carry out power amplification, to obtain the first radiofrequency signal.
10. radio-frequency front-end radiating circuit according to claim 8, it is characterised in that：
The control module is additionally operable to judge whether the isolation between the first antenna and second antenna is more than specified
Threshold value, if so, execute the control radio frequency power amplification module carries out power amplification to radiofrequency signal to be launched, with
Obtain the operation of the first radiofrequency signal.
11. radio-frequency front-end radiating circuit according to claim 8, it is characterised in that：
The control module is additionally operable to put radiofrequency signal progress power to be launched in the control radio frequency power amplification module
Greatly, before obtaining the first radiofrequency signal, the signal type of the radiofrequency signal to be launched is detected, when described to be launched is penetrated
When the signal type of frequency signal is first signal type, the when obtaining the radiofrequency signal for transmitting the second signal type
One transmission time slot；And the first working time slot when judging to emit the radiofrequency signal of first signal type and described first
Whether transmission time slot conflicts, if so, adjustment first working time slot, so that first working time slot is staggered described first
Transmission time slot；And
When the signal type of the radiofrequency signal to be launched is the second signal type, obtains and transmit first signal
The second transmission time slot when the radiofrequency signal of type；And when judging to emit the radiofrequency signal of the second signal type
Whether two working time slots conflict with second transmission time slot, if so, adjustment second working time slot, so that described second
Working time slot is staggered second transmission time slot；And the control module controls the radio frequency power amplification module to pending
The radiofrequency signal penetrated carries out power amplification, is specially in a manner of obtaining the first radiofrequency signal：
The control module controls the radio frequency according to the first working time slot after adjustment or the second working time slot after adjustment
Power amplifier module carries out power amplification to the radiofrequency signal to be launched, to obtain the first radiofrequency signal.
12. according to claim 7~11 any one of them radio-frequency front-end radiating circuit, which is characterized in that the radio-frequency front-end
Radiating circuit further includes match circuit, wherein：
The mode that the radio frequency power amplification module is used to first radiofrequency signal being sent to the low-pass filter is specific
For：
The radio frequency power amplification module is for sending first radiofrequency signal to the match circuit, by the match circuit
The first radio frequency that first radiofrequency signal is filtered, and will be obtained after filtering according to the cutoff frequency of the match circuit
Subsignal is sent to the low-pass filter；
Wherein, the match circuit is T-type or π type capacitor and inductor match circuits, and the cutoff frequency of the match circuit is in institute
It states the tranmitting frequency of the second radiofrequency signal and is disturbed between receives frequency, the receives frequency that is disturbed is the mobile terminal
The receives frequency of the interior receiver by second radiofrequency signal interference.
13. a kind of mobile terminal, which is characterized in that including：
Such as claim 7~12 any one of them radio-frequency front-end radiating circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810349718.XA CN108768421A (en) | 2018-04-18 | 2018-04-18 | Signal transmitting method and radio frequency front end transmitting circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810349718.XA CN108768421A (en) | 2018-04-18 | 2018-04-18 | Signal transmitting method and radio frequency front end transmitting circuit |
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| CN201810349718.XA Pending CN108768421A (en) | 2018-04-18 | 2018-04-18 | Signal transmitting method and radio frequency front end transmitting circuit |
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