CN105898783A - Processing method and device of wireless full-duplex communication self-interference signal - Google Patents
Processing method and device of wireless full-duplex communication self-interference signal Download PDFInfo
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- CN105898783A CN105898783A CN201610403702.3A CN201610403702A CN105898783A CN 105898783 A CN105898783 A CN 105898783A CN 201610403702 A CN201610403702 A CN 201610403702A CN 105898783 A CN105898783 A CN 105898783A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/345—Interference values
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Abstract
The invention provides a processing method and device of a wireless full-duplex communication self-interference signal. The method and the device are applicable to a terminal. The method comprises following steps of obtaining a cancellation signal with same frequency as the self-interference signal; adjusting the amplitude and phase of the cancellation signal; superimposing the self-interference signal and the cancellation signal, thus weakening the self-interference signal. The method and the device have the advantages that the self-interference signal in a receiving antenna can be weakened to the greatest extent; the self-interference elimination capability in wireless full-duplex communication is improved, the useful signal which is sent by an upper level antenna and is received by the receiving antenna is not influenced; the call quality and data transmission of the terminal are directly and clearly improved; and very good experience is brought to a user.
Description
Technical field
Disclosure embodiment relates to wireless full-duplex communication technique field, particularly relates to a kind of wireless full-duplex and leads to
The processing method and processing device of letter self-interference signal.
Background technology
The 4G communication network of mobile radio networks is divided into two kinds: FDD-LTE (Frequency
Division Duplexing-Long Term Evolution FDD), need two during FDD operation
Independent channel, a channel needs to be used for sending information from base station to terminal, and one other channel is used for
Information, and TDD-LTE (Time Division Duplexing-Long is sent to base station from terminal use
Term Evolution, timesharing Long Term Evolution, time division duplex), with FDD accordingly, it is in frame week
The downlink operation of phase is distinguished wireless channel in time and continues uplink operation.
From the point of view of the scientific definition communicated 4G at present, above two 4G communication mode is the most unrealized
Co-channel full duplex communication while Zhen Zheng, owing to using wireless full-duplex (simultaneously with frequency) communication in terminal
During, it is transmitted signal the most simultaneously and receives signal, due to transmission antenna distance reception antenna
Close together, the actual physics distance of reception antenna distance upper level transmission antenna is far longer than apart from same electricity
The actual physics distance of antenna launched by road plate so that reception antenna receive launch on same circuit board antenna from
Interference signal reception antenna to be far longer than receives far-end and sends the intensity of signal, makes useful signal be submerged in dry
Disturb in signal, thus co-channel full duplex communication while cannot realizing really.
Co-channel full duplex is in theory by more fast again than present 4G standard network service simultaneously, frequency spectrum
Utilization rate doubles, and co-channel full duplex is also one of following 5G Key Communication Technology simultaneously.
Realizing real co-channel full duplex communication simultaneously, primary solution is that wireless mobile communications is simultaneously complete with frequency
The self-interference problem in duplex field.
Summary of the invention
The disclosure provides the processing method and processing device of a kind of wireless full-duplex communication self-interference signal, to realize subtracting
Self-interference signal during co-channel full duplex communication simultaneously is realized during weak wireless telecommunications in the terminal.
First aspect, disclosure embodiment provides the process side of a kind of wireless full-duplex communication self-interference signal
Method, it is adaptable to terminal, described method includes:
Obtain and identical with self-interference signal frequency offset signal；
Amplitude and the phase place of signal is offseted described in regulation；
Described self-interference signal is overlapped with the described signal that offsets, to weaken described self-interference signal.
Embodiment of the disclosure that the technical scheme of offer can include following beneficial effect: with frequency wireless while
Full duplex field, is in same station terminal equipment, the most therebetween owing to launching antenna and reception antenna
Distance very near, launch antenna and the interference of the wireless signal in reception antenna be can be considered launch sending out of antenna
Penetrate the impact that signal receiving antenna causes, due to negligible apart from its frequency decay of near reason, therefore,
Can be generated by frequency known in full duplex communication field in this step and offset signal so that by this width
After the phasing back of what value was identical offset signal by the control realization on power in reception antenna from dry
Disturbing weakening of signal, self-interference signal is simulated weakening, in described method by the disclosure in analog domain part
In be not related to digital algorithm and can farthest realize self-interference signal is weakened, lead to for wireless full-duplex
While the realization of news provides technical support, in turn ensure that signal quality during wireless full-duplex communication.
In conjunction with another aspect, in a kind of possible embodiment on the other hand, described acquisition and self-interference
What signal frequency was identical offsets signal, including:
Obtain the radiofrequency signal of radio-frequency signal source output；
Described radiofrequency signal is coupled into transmitting signal through power splitter and offsets signal, described transmitting signal and
The described parameter information offseting signal is consistent, and power is different.
Embodiment of the disclosure that the technical scheme of offer can include following beneficial effect: reception antenna receives
Self-interference signal mainly due to launching antenna launches what signal produced, by with this transmitting signal with
One radio-frequency signal source is by the way of power splitter is formed and offsets signal, it is possible to farthest ensure to offset letter
Number identical with the frequency of the self-interference signal in reception antenna, thus weaken step for superposition below and provide and protect
Barrier, it addition, the frequency of self-interference signal can be by determining the frequency launching signal so that carrying out from dry
Disturb during signal weakening more easily according to actual frequency configuration and self-interference signal, offset signal
Frequency.
In conjunction with on the other hand, in a kind of possible embodiment on the other hand, by described self-interference signal
It is overlapped with the described signal that offsets, after weakening described self-interference signal, also includes:
Obtain the mixed signal amplitude after superposition；
Offset the phase place of signal described in regulation, make the amplitude of the mixed signal after superposition minimize
Value.
Embodiment of the disclosure that the technical scheme of offer can include following beneficial effect: offseting letter by described
Number and receive signal and send in combiner and realize during superposition weakens, obtaining the letter in combiner in real time
Number amplitude (or detecting its magnitude of voltage converted of its power), makes by changing the voltage to the described phase shifter
It is finely adjusted during to the described phasing back offseting signal, to realize the maximum journey to self-interference signal further
Degree the most thoroughly eliminates.
In conjunction with on the other hand, in a kind of possible embodiment on the other hand, offset described in described regulation
The amplitude of signal and phase place, including:
Offset described in regulation signal make described in offset the phasing back of signal；
Obtain the amplitude receiving signal；
The power gain offseting signal after regulation phasing back, makes the signal that offsets after described phasing back
Amplitude is equal with the amplitude of described reception signal；
Wherein, described reception signal is the useful signal received in reception antenna and described self-interference signal
The mixed signal formed；
Described self-interference signal is overlapped with the described signal that offsets, to weaken described self-interference signal, bag
Include:
By after phasing back and power gain offset signal and described reception signal input combiner, with
Make described through phasing back with the self-interference signal offseted in signal and described reception signal of power gain
It is overlapped weakening.
Embodiment of the disclosure that the technical scheme of offer can include following beneficial effect: make to offset the phase of signal
Bit reversal also makes the amplitude of reception signal and after power gain by the way of the conversion of power to voltage
The amplitude offseting signal is equal, and then makes to offset signal and ensure that with the self-interference signal received in signal
It is overlapped during mixing after input combiner can farthest realizing self-interference signal is weakened.
In conjunction with on the other hand, in a kind of possible embodiment on the other hand, offset described in described regulation
Signal offsets the phasing back of signal described in making, including:
The signal input phase shifter is offseted by described；
Regulate the voltage of described phase shifter, anti-to control to offset described in the regulation of described phase shifter the phase place of signal
Turn.
Embodiment of the disclosure that the technical scheme of offer can include following beneficial effect: by voltage-regulation pair
Disappear the phasing back of signal time degree, and realize in subsequent process further the phase offseting signal
The fine setting of position so that offset signal and self-interference signal superposition can farthest realize the two phase when weakening
Relevant 180 ° of position.
In conjunction with another aspect, in a kind of possible embodiment on the other hand, described regulation phasing back
Offset the power gain of signal described in after, make the amplitude offseting signal after described phasing back connect with described
The amplitude of the signal received is equal, including:
Signal input power controller is offseted described in after phasing back；
Regulate the voltage of described input power controller, control the merit offseting signal after described phasing back
Rate gain；
Obtain the first magnitude of voltage corresponding to the amplitude offseting signal after phasing back and power gain；
Regulate the voltage of described power controller, make described first magnitude of voltage equal to the second magnitude of voltage；
Wherein, described second magnitude of voltage is the magnitude of voltage that the amplitude of described reception signal is corresponding.
Embodiment of the disclosure that the technical scheme of offer can include following beneficial effect: guaranteeing through overpower
After gain to offset signal equal with the amplitude of described reception signal (and the self-interference signal included),
In the case of cannot being observed by oscillograph, the magnitude of voltage that can be formed after converting by detecting each band power comes
Guarantee that its amplitude is equal, made the described power gain offseting signal and phasing back etc. by which
Process is further regulated, and the superposition of signal can be made to weaken step and complete more thorough, goes forward side by side one
Step ground ensures self-interference signal is weakened effect.
Second aspect, disclosure embodiment additionally provides the process of a kind of wireless full-duplex communication self-interference signal
Device, it is adaptable to terminal, described device includes:
Acquisition module, is arranged to obtain and identical with self-interference signal frequency offsets signal；
Adjustment module, is arranged to offset described in regulation amplitude and the phase place of signal；
Weaken module, be arranged to be overlapped, to subtract described self-interference signal with the described signal that offsets
Weak described self-interference signal.
In conjunction with on the other hand, in a kind of possible embodiment on the other hand, described acquisition module includes:
Radio frequency obtains submodule, is arranged to obtain the radiofrequency signal of radio-frequency signal source output；
Merit molecular modules, is arranged to described radiofrequency signal is coupled into transmitting signal and offsets signal, institute
State that to launch signal consistent with the described parameter information offseting signal, power difference.
In conjunction with on the other hand, in a kind of possible embodiment on the other hand, described device also includes:
Mixed signal amplitude acquisition module, is arranged to obtain the mixed signal amplitude after superposition；
Continuously adjust module, be arranged to offset described in regulation the phase place of signal, make after superposition
The amplitude of mixed signal minimizes value.
In conjunction with on the other hand, in a kind of possible embodiment on the other hand, described adjustment module includes:
First regulon module, be arranged to described in regulation to offset signal make described in offset the phase place of signal anti-
Turn；
Receive signal amplitude and obtain submodule, be arranged to obtain the amplitude receiving signal；Wherein, described
Receive the mixing letter that signal is the useful signal received in reception antenna and the formation of described self-interference signal
Number；
Second regulon module, is arranged to the power gain offseting signal after regulating phasing back, makes
The amplitude offseting signal after described phasing back is equal with the amplitude of described reception signal；
The described module that weakens includes:
Close road dehancer module, be arranged to by after phasing back and power gain offset signal and
Described reception signal mixes, and offsets signal and described so that described through phasing back and power gain
The self-interference signal received in signal is overlapped.
In conjunction with on the other hand, in a kind of possible embodiment on the other hand, described first regulates submodule
Block includes:
Input submodule, is arranged to input so that the described signal that offsets is carried out phase adjusted；
Voltage-regulation submodule, is arranged to regulate the voltage of described input module, described with control and regulation
Offset the phasing back of signal.
In conjunction with on the other hand, in a kind of possible embodiment on the other hand, described second regulates submodule
Block includes:
Second input submodule, is arranged to input carry out merit to offseting signal described in after phasing back
Rate gain；
Power control module, is arranged to regulate the voltage of described input power controller, controls institute
State the power gain offseting signal after phasing back；
First photovoltaic conversion submodule, is arranged to offset signal after obtaining phasing back and power gain
The first magnitude of voltage corresponding to amplitude；
Control of Voltage submodule, is arranged to regulate the voltage of described second input module, makes described first
Magnitude of voltage is equal to the second magnitude of voltage；Wherein, described second magnitude of voltage is that the amplitude of described reception signal is corresponding
Magnitude of voltage.
It should be appreciated that it is only exemplary and explanation that above general description and details hereinafter describe
Property, the disclosure can not be limited.
Accompanying drawing explanation
Accompanying drawing herein is merged in description and constitutes the part of this specification, it is shown that meet the disclosure
Embodiment, and for explaining the principle of the disclosure together with description.
Fig. 1 is the process according to a kind of wireless full-duplex communication self-interference signal shown in an exemplary embodiment
The flow chart of method.
Fig. 2 is according to the generation offseting signal shown in an exemplary embodiment and the schematic flow sheet of regulation.
Fig. 3 is according to making the equal flow process of amplitude illustrate by voltage-regulation shown in an exemplary embodiment
Figure.
Fig. 4 is according to the flow process signal being finely adjusted according to result in combiner shown in an exemplary embodiment
Figure.
Fig. 5 is the process dress illustrating a kind of wireless full-duplex communication self-interference signal according to an exemplary embodiment
The block diagram put.
Fig. 6 is generation module and the block diagram of adjustment module of Fig. 5.
Fig. 7 is to offset signal according to the guarantee shown in an exemplary embodiment and receive the knot that signal amplitude is equal
Structure block diagram.
Fig. 8 is the process according to a kind of wireless full-duplex communication self-interference signal shown in an exemplary embodiment
Device be embodied as schematic diagram.
Fig. 9 is the process according to a kind of wireless full-duplex communication self-interference signal shown in an exemplary embodiment
The block diagram of the device of method.
Detailed description of the invention
With embodiment, the disclosure is described in further detail below in conjunction with the accompanying drawings.It is understood that this
Specific embodiment described by place is used only for explaining the disclosure, rather than restriction of this disclosure.The most also need
It is noted that for the ease of describing, accompanying drawing illustrate only the part relevant to the disclosure and not all knot
Structure.
It should be mentioned that, some exemplary embodiment quilts before being discussed in greater detail exemplary embodiment
It is described as process or the method described as flow chart.Although each step is described as the place of order by flow chart
Reason, but many of which step can be implemented concurrently, concomitantly or simultaneously.Additionally, each step
Order can be rearranged, and the most described process can be terminated, it is also possible to have
Other step being not included in accompanying drawing.Process can correspond to method, function, code, subroutine, son
Program etc..
It relates to the processing method of a kind of wireless full-duplex communication self-interference signal, it mainly applies to nothing
In line co-channel full duplex traffic scene simultaneously, its basic thought is: by generating and certainly doing in reception antenna
Disturb that signal frequency is identical, opposite in phase, amplitude are identical offsets signal, by offseting signal and self-interference
The superposition of signal mixes and weakens the self-interference signal of reception in reception antenna, in the process can also be to subtracting
Weak effect is finely adjusted, thus farthest to the self-interference signal weakened in reception antenna, promotes wireless
Self-interference in full duplex communication weakens ability, and the transmission of the upper level antenna of the reception in reception antenna has
Signal unaffected, promote the speech quality of terminal, data transmission etc. the most significantly, carry to user
Carry out the best experience.
The present embodiment is applicable to be capable of in the terminal of wireless full-duplex communication carrying out self-interference signal
In the case of weakening, the method can be performed by wireless full-duplex communication device such as Base Band Unit, wherein should
Device can be realized by software and/or hardware, usually can be integrated in mobile terminal, or in terminal
Heart control module controls, as it is shown in figure 1, be a kind of wireless full-duplex communication self-interference signal of the disclosure
The flow chart of processing method, described method adapts in current all terminal units, such as mobile phone, flat
Plate and the nearer wireless telecommunications system of any reception antenna range transmission antenna, it can comprise the steps:
In step 110, it is thus achieved that identical with self-interference signal frequency offsets signal；
In wireless full-duplex field, co-channel full duplex simultaneously, Co-frequency Co-time Full Duplex,
CCFD, its Wireless Telecom Equipment uses identical time, identical frequency, launches simultaneously and receive wireless
Signal so that the spectrum efficiency of wireless communication be doubled data allow launch and receive two lead to
Road is carried out simultaneously.
When making the terminal wireless traffic with far-end realize data transmission, having of the upper level that reception antenna receives
Transmitting with the radio service data of the i.e. far-end of signal, it occurs with the transmitting sky alignment far-end transmitted signal of terminal
In identical time, identical frequency bandwidth.
Described self-interference signal is owing to the transmitting antenna of terminal is relatively near with reception antenna, and makes reception antenna
Inevitably affected by launching antenna and produced, launch antenna on the impact of reception antenna be with
The form of energy wave produces interference to the useful signal in reception antenna, owing to its amplitude decayed is negligible
Disregarding, the frequency of the most described self-interference signal is identical with the signal frequency in wireless full-duplex.
Identical with self-interference signal frequency when offseting signal generating, about setting for offseting the frequency of signal
Fixed part can obtain by the way of obtaining the frequency of described transmitting signal, and by the frequency of described transmitting signal
As the frequency of described self-interference signal, thus described in reaching, offset the frequency of signal and described self-interference signal
Frequency identical, generate according to the frequency launching signal and offset signal, can believe by arranging an independent radio frequency
Number unit generates according to described frequency, it is possible to make the signal that offsets of generation believe with self-interference in such a way
Number frequency identical.
It is in a kind of feasible embodiment, identical with self-interference signal frequency when offseting signal generating,
May include that
In step 111, the radiofrequency signal of radio-frequency signal source output is obtained；
Radio-frequency signal source is the device launching signal in terminal to the wireless traffic of far-end, and it carries to launching antenna
For launching signal.
In step 112, described radiofrequency signal is coupled into transmitting signal through power splitter and offsets signal,
Described transmitting signal is consistent with the described parameter information offseting signal, and power is different.
Before launching antenna offer transmitting signal, the radiofrequency signal of described radio-frequency signal source output is through merit
Divide device (a road signal is divided into equal or not homenergic the device of multichannel by power divider) coupling separately
Forming size two parts, major part therein will carry out launching also as launching in signal feeding transmitting antenna
Being transmitted, its fraction radiofrequency signal therein then carries out next step phase shift, power as offseting signal
The operation such as gain, coupling sends into combiner to weaken self-interference signal.
Launching signal by be coupled into through power splitter and offseting the parameter information such as amplitude, frequently of signal
Rate, phase place etc. are all consistent, and it only exists the difference of power, and the energy carried is less.
In the step 120, amplitude and the phase place of signal are offseted described in regulation；
During to the described regulation offseting signal, the phase shifter can be called the phase place offseting signal is adjusted
Joint, additionally can be equal and make its amplitude offseting signal and self-interference signal by magnitude of voltage that power converts
Equal.
In step 130, described self-interference signal is overlapped with the described signal that offsets, described to weaken
Self-interference signal.
Described reception signal is the useful signal received in reception antenna and the formation of described self-interference signal
Mixed signal, useful signal is the signal that the upper level wireless traffic of reception antenna sends, and described from dry
Disturbing signal is to launch the self-interference signal that the interference of reception antenna is generated by antenna.
Obtain identical with the amplitude of described self-interference signal (or reception signal overall) in reception antenna,
Opposite in phase offset signal after, carry out the two mixing to weaken or eliminate, typically can by the two send into
In combiner, in combiner same frequency with the signal of amplitude when superposition due to opposite in phase so that realize
The mixing offseting signal and the self-interference signal received in signal weakens, and due to receive having in signal
All differing by the phase place of signal, amplitude etc., useful signal the most therein is retained.
The operation principle of this exemplary embodiment is: for the self-interference signal in wireless full-duplex field at mould
Intend signal field to weaken, the complicated algorithm being not related in numeric field, by making certainly doing in reception signal
The opposite in phase of disturbing signal and offset signal (by described offset signal phase translate 180 ° i.e. available with described
The self-interference signal that self-interference signal phase place is identical, amplitude is equal), amplitude equal so that the two is at He Lu
In device, superposition weakens, and effectively reduces the self-interference signal received in signal.
As in figure 2 it is shown, can be shown by the disclosure offseting the process that signal is adjusted in the step 120
The mode of example embodiment is carried out, and it can comprise the following steps that
In step 121, offset described in regulation signal make described in offset the phasing back of signal；
After by offseting signal described in the radiofrequency signal that radio-frequency signal source sends being formed by power splitter, logical
Spend the phase shifter by the described phasing back offseting signal, initial setting phase place can be adjusted to reversion in this step
180 °, can realize offseting the adjustment of the phase place of signal, also by the way of the input voltage of regulation phase shifter
A/D, D/A (conversion between numeral font size and analogue signal) can be passed through in current terminal realize
Digital phase shift, to improve the precision of its phase shift.
In step 122, the amplitude of reception signal is obtained；
The amplitude receiving signal that cymoscope is observed in reception antenna can be passed through, for receiving certainly doing in signal
Disturbing between signal and useful signal, its amplitude is different, and frequency and phase place are the most different.
In step 123, the power gain offseting signal after regulation phasing back, make described phasing back
After the amplitude offseting signal equal with the amplitude of described reception signal；
Offset the power gain of signal described in after regulation phasing back, including: described in offset the phase place of signal
Carry out offseting the power gain of signal after inverting 180 °, to increase the power offseting signal, due to this part
Offseting signal is the lower-powered signal formed by power splitter decay in radiofrequency signal, therefore to reception
If power is inadequate when the self-interference signal in signal weakens, then can not weaken self-interference therein completely
Signal.
The amplitude offseting signal after step 122 can be observed by cymoscope, or real by preset algorithm
Now offset the acquisition of signal amplitude.
In this step, as it is shown on figure 3, the amplitude offseting signal after making described phasing back connects with described
A kind of feasible mode that the amplitude of the collection of letters number is equal may include steps of:
In step 1231, described in after phasing back, offset signal input power controller；
Signal input power controller is offseted, to realize smaller power is offseted described in after phasing back
The power ascension of signal.
In step 1232, regulate the voltage of described input power controller, control described phasing back
After the power gain offseting signal；
To by regulation voltage, it is achieved the control to the power gain offseting signal.
In step 1233, obtain corresponding to the amplitude offseting signal after phasing back and power gain
First magnitude of voltage；
To described through phasing back 180 ° and power gain offset signal carry out power → magnitude of voltage turn
Change, to obtain one first magnitude of voltage；
Detection offsets the first magnitude of voltage of signal, and it can be realized by the circuit board detecting in terminal.
In step 1234, regulate the voltage of described power controller, make described first magnitude of voltage equal to the
Two magnitudes of voltage；
Described reception signal is carried out the conversion of power → magnitude of voltage, to obtain one second magnitude of voltage；For connecing
Receive the reception signal in antenna, by the way of connecting a bonder, a little portion can be coupled out from reception signal
The reception signal divided, this part receives the amplitude of signal and sends into combiner with by the another part after bonder
In the parameter information receiving signal include that frequency, phase place and amplitude etc. are identical, and its power is different, because of
This, described second magnitude of voltage can represent the amplitude receiving signal.
By the conversion between the power → magnitude of voltage of the self-interference signal of the docking collection of letters number, it is achieved to the second electricity
The detection of pressure value, wherein, described second magnitude of voltage is the magnitude of voltage that the amplitude of described reception signal is corresponding.
Again regulate the described power gain (i.e. regulating the voltage of power controller) offseting signal, make institute
State the first magnitude of voltage equal with described second magnitude of voltage, i.e. described in expression, offset the amplitude of signal and described reception
The amplitude of signal is equal.
As shown in Figure 4, described self-interference signal is overlapped with the described signal that offsets in step 130,
To weaken described self-interference signal, including:
In step 131, signal and described reception signal will be offseted after phasing back and power gain
Input combiner, so that described offseting in signal and described reception signal through phasing back and power gain
Self-interference signal be overlapped weakening.
Signal and described reception signal input combiner will be offseted through phasing back 180 ° and power gain,
So that the described self-interference offseted in signal and reception signal through phasing back 180 ° and power gain is believed
Number it is overlapped weakening.
During the superposition offseting signal and self-interference signal weakens, may also include the steps of:
Step 140, obtain the mixed signal amplitude after superposition in described combiner；
Mixed signal amplitude refers to offset signal in combiner and self-interference signal superposition weaken after connect
The amplitude of the collection of letters number.
Step 150, continuously adjust described in offset the phase place of signal, make in described combiner after superposition
The amplitude of mixed signal minimize value.
In possible situation, the phase place offseting signal is not adjusted to and in esse self-interference signal
Phase place is completely contrary, then can be finely adjusted, by this step, the phase place offseting signal, make mixed signal
During amplitude minimum, then it is believed that now offset signal and weaken completely with self-interference signal, stop offseting described
The fine setting of signal.
The processing means of a kind of wireless full-duplex communication self-interference signal that Fig. 5 provides for disclosure embodiment
Structural representation, this device can be realized by software and/or hardware, usually be integrated in mobile terminal, can lead to
The attenuation method crossing wireless full-duplex communication self-interference signal realizes.As it can be seen, the present embodiment can be with
Based on above-described embodiment, it is provided that the reducer of a kind of wireless full-duplex communication self-interference signal, it is main
Acquisition module 510 to be included, adjustment module 520 and weaken module 530, between wherein each module
Communication two-by-two can be realized, and all can realize communication with its control module.
Acquisition module 510 therein, is arranged to obtain and identical with self-interference signal frequency offsets signal；
Adjustment module 520 therein, is arranged to offset described in regulation amplitude and the phase place of signal；
Therein weaken module 530, be arranged to carry out described self-interference signal with the described signal that offsets
Superposition, to weaken described self-interference signal.
A kind of in disclosure exemplary embodiment implements in scene, and described acquisition module 510 includes:
Radio frequency obtains submodule 511, is arranged to obtain the radiofrequency signal of radio-frequency signal source output；
Merit molecular modules 512, is arranged to described radiofrequency signal is coupled into transmitting signal and offsets signal,
Described transmitting signal is consistent with the described parameter information offseting signal, and power is different.
A kind of in disclosure exemplary embodiment implements in scene, and described device also includes:
Mixed signal amplitude acquisition module 540, is arranged to obtain the mixed signal width after superposition
Value；
Continuously adjust module 550, be arranged to described in regulation offset the phase place of signal, make through superposition it
After the amplitude of mixed signal minimize value.
A kind of in disclosure exemplary embodiment implements in scene, as shown in Figure 6, and described adjustment module 520
Including:
First regulon module 521, be arranged to described in regulation to offset signal make described in offset the phase of signal
Bit reversal；
Receive signal amplitude and obtain submodule 522, be arranged to obtain the amplitude receiving signal；
Second regulon module 523, is arranged to the power gain offseting signal after regulating phasing back,
Make the amplitude offseting signal after described phasing back equal with the amplitude of described reception signal；
Wherein, described reception signal is the useful signal received in reception antenna and described self-interference signal
The mixed signal formed；
Weaken module 530 described in as it is shown in fig. 7, to include:
Close road dehancer module 531, by offseting signal and described connecing after phasing back and power gain
Collect mail and number mix, offset signal and described reception letter so that described through phasing back and power gain
Self-interference signal in number is overlapped weakening.
A kind of in disclosure exemplary embodiment implements in scene, and described first regulon module 521 includes:
Input submodule, is arranged to input so that the described signal that offsets is carried out phase adjusted；
Voltage-regulation submodule, is arranged to regulate the voltage of described input module, described with control and regulation
Offset the phasing back of signal.
A kind of in disclosure exemplary embodiment implements in scene, and described second regulon module 523 includes:
Second input submodule 5231, is arranged to input enter offseting signal described in after phasing back
Row power gain；
Power control module 5232, is arranged to regulate the voltage of described input power controller, controls
To the power gain offseting signal after described phasing back；
First photovoltaic conversion submodule 5233, is arranged to offseting after obtaining phasing back and power gain
The first magnitude of voltage corresponding to the amplitude of signal；
Control of Voltage submodule 5234, is arranged to receive the after the second photovoltaic conversion submodule regulation
Two voltages, described second magnitude of voltage is the magnitude of voltage that the amplitude of described reception signal is corresponding, and regulation is described simultaneously
The voltage of the first photovoltaic conversion submodule 5233, makes described first magnitude of voltage equal to the second magnitude of voltage.
The reducer of the wireless full-duplex communication self-interference signal provided in above-described embodiment can perform these public affairs
Open provided in any embodiment wireless full-duplex communication self-interference signal attenuation method, possess execution
The corresponding functional module of the method and beneficial effect, the ins and outs described in detail the most in the above-described embodiments,
Can be found in provided in disclosure any embodiment wireless full-duplex communication self-interference signal attenuation method.
Fig. 8 is that the disclosure exemplary embodiment signal when implementing flows to schematic diagram, the block arrows in figure
Flowing to for signal, empty body arrow therein is the regulation to signal or detection, as shown in Figure 8, the disclosure
The operation principle of device is:
One radio-frequency signal source output radiofrequency signal, is divided into high-power and small-power two through power splitter coupling
Sub-signal, high-power signal part therein enters under transmitting sky alignment transmitting antenna as launching signal a
Further device is transmitted, and low-power level signal part b therein is as offseting signal, offsets signal input
Phase shifter, voltage-regulation A output 0-13V controls the phase place of phase shifter 0-450 °, and it is right that regulation voltage A makes
The signal phase that disappears inverts 180 °, next offsets signal ingoing power gain G C, real by voltage-regulation B
Existing power gain, tunes up the power offseting signal, and then makes to offset signal and enter into bonder A, in coupling
Device A offsets the Partial Power signal c to cymoscope A, cymoscope A of signal coupling described in coupling
Power is converted into magnitude of voltage, and the Partial Power signal d offseting signal described in coupling enters into combiner.
The signal that reception antenna receives not only includes the useful signal of the upper level received transmitting antenna but also includes
This terminal of coupling is launched the self-interference signal that reception antenna is caused by antenna, the letter that reception antenna receives
Number through bonder B, it is coupled to receive the Partial Power e of signal to cymoscope B, another road signal f and coupling
The signal d that offsets of clutch A output realizes offseting at combiner, when voltage test points A and voltage test points B
The equal explanation of magnitude of voltage offset signal and reception antenna to receive signal amplitude equal, the signal after offseting is permissible
By the way of detecting its amplitude and whether minimizing, check that it the most farthest reduces self-interference letter
Number.
Ability is weakened with promote self-interference signal further the described phase place offseting signal being realized fine setting
Time, continuously adjust voltage A, when the signal amplitude in the combiner detected is minimum, when weakening value maximum
Then illustrate to offset the phase place of the phase place of signal and self-interference signal antithesis, thus realize offseting signal and reception
Signal power is equal, opposite in phase, it is achieved that weakening of analog domain self-interference signal.
It is to be appreciated that the disclosure also extends to the computer program being suitable for the disclosure being tried out,
The particularly computer program on carrier or in carrier.Program can be with source code, object code, code
The form of the object code of the form of intermediary source and such as partial compilation, or with any other be suitable for according to
The form used in the realization of disclosed method.Also it is to be noted that, such program is likely to be of many
Different frame design.Such as, it is achieved according to the disclosed method or functional program code of system
One or more subroutine may be subdivided into.
For at the functional many different modes of these subroutine intermediate distribution being for technical personnel
Significantly.Subroutine can be collectively stored in an executable file, thus forms self-contained program.
Such executable file can include that computer executable instructions, such as processor instruction and/or interpreter refer to
Make (such as, Java interpreter instruction).Alternatively, one or more or all sons of subroutine
Routine may be stored at least one external library file, and with mastery routine statically or dynamically
(the most at runtime) links.Mastery routine contains at least one at least one in subroutine and calls.
Subroutine can also include function call each other.The embodiment relating to computer program includes correspondence
The computer executable instructions of each step of the process step of at least one method in illustrated method.This
A little instructions can be subdivided into subroutine and/or be stored in one or more possible static or dynamic chain
In the file connect.
Another embodiment relating to computer program includes corresponding to illustrated system and/or product
In the computer executable instructions of each device at least one device.These instructions can be subdivided into son
Routine and/or be stored in one or more may be in the static or file of dynamic link.
The carrier of computer program can be any entity or the equipment that can deliver program.Such as, carrier
Storage medium, such as (ROM such as CDROM or quasiconductor ROM) or magnetic recording can be comprised
Medium (such as floppy disk or hard disk).Further, carrier can be the carrier that can transmit, such as electricity
Or optical signalling, it via cable or optical cable, or can be transmitted by radio or other means.
When program is embodied as such signal, carrier can be by such cable or miscellaneous equipment or device
Composition.Alternatively, carrier can be the integrated circuit being wherein embedded with program, and described integrated circuit is suitable for
In performing correlation technique, or for used by the execution of correlation technique.
Should be noted that, embodiment mentioned above is to illustrate the disclosure rather than limit the disclosure,
And those skilled in the art can design many alternate embodiments, without departing from appended right
The scope required.In the claims, any reference marks being placed between round parentheses is not to be read as
It is limitations on claims.Verb " includes " and its paradigmatic use is not excluded for except in claim
Described in those outside element or the existence of step.Article " one " before element or " one "
It is not excluded for the existence of a plurality of such element.The disclosure can be by including several visibly different element
Hardware, and realized by properly programmed computer.In the equipment claim enumerating several device,
Several in these devices can be embodied by the same item of hardware.At mutually different dependent claims
The simple fact of middle some measure of statement is not intended that the combination of these measures can not be used to benefit.
If desired, difference in functionality discussed herein can with different order perform and/or simultaneously with one another
Perform.Additionally, if desired, one or more functions described above can be optional or
Can be combined.
If desired, the most each step is not limited to the execution sequence in each embodiment, no
Can perform with different order with step and/or perform simultaneously with one another.Additionally, in other embodiments, above
Described one or more steps can be optional or can be combined.
Although various aspects of the disclosure is given in the independent claim, but the other side bag of the disclosure
Include from the feature of described embodiment and/or there is the dependent claims of feature of independent claims
Combination, and be the most only the combination clearly provided in claim.
The most to be noted is, although the foregoing describe the example embodiment of the disclosure, but these are retouched
State and should not understand in a limiting sense.On the contrary, several changing and modifications can be carried out and not
Deviate from the scope of the present disclosure as defined in claims.
Will be appreciated by those skilled in the art that each module in the device of disclosure embodiment can be with logical
Calculating device realize, each module can concentrate on single calculating device or calculate device composition net
In network group, the device in disclosure embodiment is corresponding to the method in previous embodiment, and it can be by holding
The program code of row realizes, it is also possible to realizing by the way of integrated circuit combination, therefore the disclosure is not
It is confined to specific hardware or software and combination thereof.
Will be appreciated by those skilled in the art that each module in the device of disclosure embodiment can be with logical
Mobile terminal realize, each module can concentrate on single mobile terminal or mobile terminal composition set
In standby combination, the device in disclosure embodiment is corresponding to the method in previous embodiment, and it can be by compiling
Collect executable program code to realize, it is also possible to realize by the way of integrated circuit combination, therefore these public affairs
Open and be not limited to specific hardware or software and combination thereof.
Fig. 9 be according to shown in an exemplary embodiment a kind of for wireless full-duplex communicate self-interference signal
The block diagram of the device 800 of attenuation method.Such as, device 800 can be mobile phone, computer, numeral
Broadcast terminal, messaging devices, game console, tablet device, armarium, body-building equipment, individual
Personal digital assistant etc..
With reference to Fig. 9, device 800 can include following one or more assembly: processes assembly 802, storage
Device 804, power supply module 806, multimedia groupware 808, audio-frequency assembly 810, input/output (I/O)
Interface 812, sensor cluster 814, and communications component 816.
Process assembly 802 and generally control the integrated operation of device 800, such as with display, call, number
The operation being associated according to communication, camera operation and record operation.Process assembly 802 and can include one or many
Individual processor 820 performs instruction, to complete all or part of step of above-mentioned method.Additionally, process
Assembly 802 can include one or more module, it is simple to process between assembly 802 and other assemblies is mutual.
Such as, process assembly 802 and can include multi-media module, to facilitate multimedia groupware 808 and to process assembly
Mutual between 802.
Memorizer 804 is configured to store various types of data to support the operation at device 800.These
The example of data includes any application program for operation on device 800 or the instruction of method, contact person
Data, telephone book data, message, picture, video etc..Memorizer 804 can be by any kind of volatile
Property or non-volatile memory device or combinations thereof realize, such as static RAM
(SRAM), Electrically Erasable Read Only Memory (EEPROM), the read-only storage of erasable programmable
Device (EPROM), programmable read only memory (PROM), read only memory (ROM), magnetic memory,
Flash memory, disk or CD.
The various assemblies that power supply module 806 is device 800 provide power supply.Power supply module 806 can include electricity
Management system, one or more power supplys, and other generate, manage and distribute power supply phase with for device 800
The assembly of association.
The screen of one output interface of offer that multimedia groupware 808 is included between described device 800 and user
Curtain.In certain embodiments, screen can include liquid crystal display (LCD) and touch panel (TP).
If screen includes that touch panel, screen may be implemented as touch screen, to receive the input letter from user
Number.Touch panel includes that one or more touch sensor is with the hands on sensing touch, slip and touch panel
Gesture.Described touch sensor can not only sense touch or the border of sliding action, but also detection is with described
Touch or persistent period that slide is relevant and pressure.In certain embodiments, multimedia groupware 808 wraps
Include a front-facing camera and/or post-positioned pick-up head.When device 800 is in operator scheme, such as screening-mode or
During video mode, front-facing camera and/or post-positioned pick-up head can receive the multi-medium data of outside.Before each
Put photographic head and post-positioned pick-up head can be a fixing optical lens system or have focal length and optics change
Burnt ability.
Audio-frequency assembly 810 is configured to output and/or input audio signal.Such as, audio-frequency assembly 810 includes
One mike (MIC), when device 800 is in operator scheme, such as call model, logging mode and language
During sound recognition mode, mike is configured to receive external audio signal.The audio signal received can be by
It is further stored in memorizer 804 or sends via communications component 816.In certain embodiments, audio group
Part 810 also includes a speaker, is used for exporting audio signal.
I/O interface 812 provides interface for processing between assembly 802 and peripheral interface module, above-mentioned periphery connects
Mouth die block can be keyboard, puts striking wheel, button etc..These buttons may include but be not limited to: home button,
Volume button, start button and locking press button.
Sensor cluster 814 includes one or more sensor, for providing various aspects for device 800
State estimation.Such as, what sensor cluster 814 can detect device 800 opens/closed mode, assembly
Relative localization, the most described assembly is display and the keypad of device 800, and sensor cluster 814 is also
Device 800 or the position change of 800 1 assemblies of device, user and depositing that device 800 contacts can be detected
Or do not exist, device 800 orientation or acceleration/deceleration and the variations in temperature of device 800.Sensor cluster
814 can include proximity transducer, are configured to when not having any physical contact object near detection
Existence.Sensor cluster 814 can also include optical sensor, such as CMOS or ccd image sensor,
For using in imaging applications.In certain embodiments, this sensor cluster 814 can also include accelerating
Degree sensor, gyro sensor, Magnetic Sensor, pressure transducer or temperature sensor.
Communications component 816 is configured to facilitate the logical of wired or wireless mode between device 800 and other equipment
Letter.Device 800 can access wireless network based on communication standard, such as WiFi, 2G or 3G, or they
Combination.In one exemplary embodiment, communications component 816 receives wide from outside via broadcast channel
The broadcast singal of broadcast management system or broadcast related information.In one exemplary embodiment, described communication set
Part 816 also includes near-field communication (NFC) module, to promote junction service.Such as, in NFC module
Can be based on RF identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra broadband (UWB)
Technology, bluetooth (BT) technology and other technologies realize.
In the exemplary embodiment, device 800 can be by one or more application specific integrated circuits
(ASIC), digital signal processor (DSP), digital signal processing appts (DSPD), FPGA
Device (PLD), field programmable gate array (FPGA), controller, microcontroller, microprocessor or
Other electronic components realize, and are used for performing said method.
In the exemplary embodiment, a kind of non-transitory computer-readable storage medium including instruction is additionally provided
Matter, such as include instruction memorizer 804, above-mentioned instruction can by the processor 820 of device 800 perform with
Complete said method.Such as, described non-transitory computer-readable recording medium can be ROM, random
Access memorizer (RAM), CD-ROM, tape, floppy disk and optical data storage devices etc..
Note, above are only preferred embodiment and institute's application technology principle of the disclosure.Those skilled in the art
It will be appreciated that the disclosure is not limited to specific embodiment described here, can enter for a person skilled in the art
Row various obvious changes, readjust and substitute the protection domain without departing from the disclosure.Therefore, though
So by above example, the disclosure is described in further detail, but the disclosure be not limited only to
Upper embodiment, in the case of conceiving without departing from the disclosure, it is also possible to include other Equivalent embodiments more,
And the scope of the present disclosure is determined by scope of the appended claims.
Claims (12)
1. the processing method of a wireless full-duplex communication self-interference signal, it is adaptable to terminal, its feature exists
In, described method includes:
Obtain and identical with self-interference signal frequency offset signal；
Amplitude and the phase place of signal is offseted described in regulation；
Described self-interference signal is overlapped with the described signal that offsets, to weaken described self-interference signal.
Method the most according to claim 1, it is characterised in that described acquisition and self-interference signal frequency
What rate was identical offsets signal, including:
Obtain the radiofrequency signal of radio-frequency signal source output；
Described radiofrequency signal is coupled into transmitting signal through power splitter and offsets signal, described transmitting signal and
The described parameter information offseting signal is consistent, and power is different.
Method the most according to claim 1, it is characterised in that by described self-interference signal with described
Offset signal to be overlapped, after weakening described self-interference signal, also include:
Obtain the mixed signal amplitude after superposition；
Again offset the phase place of signal described in regulation, make the amplitude of the mixed signal after superposition reach
Little value.
Method the most according to claim 3, it is characterised in that offset signal described in described regulation
Amplitude and phase place, including:
Offset described in regulation signal make described in offset the phasing back of signal；
Obtain the amplitude receiving signal；Wherein, described reception signal is the useful letter received in reception antenna
Number and described self-interference signal formed mixed signal；
The power gain offseting signal after regulation phasing back, makes the signal that offsets after described phasing back
Amplitude is equal with the amplitude of described reception signal；
Described described self-interference signal is overlapped with the described signal that offsets, to weaken described self-interference letter
Number, including:
By after phasing back and power gain offset signal and described reception signal input combiner, with
Make described through phasing back with the self-interference signal offseted in signal and described reception signal of power gain
It is overlapped.
Method the most according to claim 4, it is characterised in that offset signal described in described regulation and make
The described phasing back offseting signal, including:
The signal input phase shifter is offseted by described；
Regulate the voltage of described phase shifter, anti-to control to offset described in the regulation of described phase shifter the phase place of signal
Turn.
Method the most according to claim 4, it is characterised in that the institute after described regulation phasing back
State the power gain offseting signal, make the amplitude offseting signal after described phasing back receive with described
The amplitude of signal is equal, including:
Signal input power controller is offseted described in after phasing back；
Regulate the voltage of described input power controller, control the merit offseting signal after described phasing back
Rate gain；
Obtain the first magnitude of voltage corresponding to the amplitude offseting signal after phasing back and power gain；
Regulate the voltage of described power controller, make described first magnitude of voltage equal to the second magnitude of voltage；
Wherein, described second magnitude of voltage is the magnitude of voltage that the amplitude of described reception signal is corresponding.
7. the processing means of a wireless full-duplex communication self-interference signal, it is adaptable to terminal, its feature exists
In, described device includes:
Acquisition module, is arranged to obtain and identical with self-interference signal frequency offsets signal；
Adjustment module, is arranged to offset described in regulation amplitude and the phase place of signal；
Weaken module, be arranged to be overlapped, to subtract described self-interference signal with the described signal that offsets
Weak described self-interference signal.
Device the most according to claim 7, it is characterised in that described acquisition module includes:
Radio frequency obtains submodule, is arranged to obtain the radiofrequency signal of radio-frequency signal source output；
Merit molecular modules, is arranged to described radiofrequency signal is coupled into transmitting signal and offsets signal, institute
State that to launch signal consistent with the described parameter information offseting signal, power difference.
Device the most according to claim 7, it is characterised in that described device also includes:
Mixed signal amplitude acquisition module, is arranged to obtain the mixed signal amplitude after superposition；
Continuously adjust module, be arranged to offset described in regulation the phase place of signal, make after superposition
The amplitude of mixed signal minimizes value.
Device the most according to claim 9, it is characterised in that described adjustment module includes:
First regulon module, be arranged to described in regulation to offset signal make described in offset the phase place of signal anti-
Turn；
Receive signal amplitude and obtain submodule, be arranged to obtain the amplitude receiving signal；Wherein, described
Receive the mixing letter that signal is the useful signal received in reception antenna and the formation of described self-interference signal
Number；
Second regulon module, is arranged to the power gain offseting signal after regulating phasing back, makes
The amplitude offseting signal after described phasing back is equal with the amplitude of described reception signal；
The described module that weakens includes:
Close road dehancer module, be arranged to by after phasing back and power gain offset signal and
Described reception signal mixes, and offsets signal and described so that described through phasing back and power gain
The self-interference signal received in signal is overlapped.
11. devices according to claim 10, it is characterised in that described first regulon module bag
Include:
Input submodule, is arranged to input so that the described signal that offsets is carried out phase adjusted；
Voltage-regulation submodule, is arranged to regulate the voltage of described input module, described with control and regulation
Offset the phasing back of signal.
12. devices according to claim 10, it is characterised in that described second regulon module bag
Include:
Second input submodule, is arranged to input carry out merit to offseting signal described in after phasing back
Rate gain；
Power control module, is arranged to regulate the voltage of described input power controller, controls institute
State the power gain offseting signal after phasing back；
First photovoltaic conversion submodule, is arranged to offset signal after obtaining phasing back and power gain
The first magnitude of voltage corresponding to amplitude；
Control of Voltage submodule, is arranged to regulate the voltage of described second input module, makes described first
Magnitude of voltage is equal to the second magnitude of voltage；Wherein, described second magnitude of voltage is that the amplitude of described reception signal is corresponding
Magnitude of voltage.
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Application publication date: 20160824 |