CN109218006A - Removing method and device, the computer readable storage medium of full duplex self-interference - Google Patents
Removing method and device, the computer readable storage medium of full duplex self-interference Download PDFInfo
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- CN109218006A CN109218006A CN201710523492.6A CN201710523492A CN109218006A CN 109218006 A CN109218006 A CN 109218006A CN 201710523492 A CN201710523492 A CN 201710523492A CN 109218006 A CN109218006 A CN 109218006A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/14—Two-way operation using the same type of signal, i.e. duplex
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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
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/50—Circuits using different frequencies for the two directions of communication
- H04B1/52—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa
- H04B1/525—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa with means for reducing leakage of transmitter signal into the receiver
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Abstract
The disclosure is directed to a kind of removing method of full duplex self-interference and device, computer readable storage medium, this method may include: to obtain corresponding interference cancellation signals, the interference cancellation signals and the signal to be transmitted opposite in phase according to signal to be transmitted；When issuing the signal to be transmitted by the transmitter, the interference cancellation signals and the self-interference signal corresponding to the signal to be transmitted that the receiver receives are overlapped, at least to offset the part self-interference signal.By the technical solution of the disclosure, transmitting may be implemented, receive and carried out in identical frequency channels and identical time slot, improve the efficiency of transmission data；Simultaneously, it is possible to reduce to the occupancy of frequency channels resource.
Description
Technical field
This disclosure relates to the removing method and device, calculating of field of terminal technology more particularly to a kind of full duplex self-interference
Machine readable storage medium storing program for executing.
Background technique
Full-duplex communication is also known as two-way simultaneous communication, that is, the both sides communicated can send and receive the data of data simultaneously
Interactive mode.The wireless full-duplex proposed in the related technology is divided into time division duplex and frequency division duplex.It receives and sends out in time division duplex
Penetrate is under the different time-gap of same frequency channel, to prevent transmitting signal from interfering to signal is received；It is in frequency division duplex
On two symmetrical frequency channels of separation, to prevent transmitting signal from interfering to signal is received.
Summary of the invention
The disclosure provides the removing method and device, computer readable storage medium of a kind of full duplex self-interference, to solve
Deficiency in the related technology.
According to the first aspect of the embodiments of the present disclosure, a kind of removing method of full duplex self-interference is provided, electronics is applied to
Equipment, the electronic equipment include transmitter and receiver, and the transmitter and the receiver use identical frequency channels；
The described method includes:
Corresponding interference cancellation signals, the interference cancellation signals and the signal to be transmitted are obtained according to signal to be transmitted
Opposite in phase；
When issuing the signal to be transmitted by the transmitter, the interference cancellation signals and the receiver are connect
The self-interference signal corresponding to the signal to be transmitted received is overlapped, at least to offset the part self-interference signal.
It is optionally, described that corresponding interference cancellation signals are obtained according to signal to be transmitted, comprising:
The signal to be transmitted is converted by balanced-unbalanced transformer to obtain the interference cancellation signals.
Optionally, further includes:
Decay the interference cancellation signals to obtain deamplification；
The deamplification and the self-interference signal are overlapped, at least to offset the part self-interference signal.
It is optionally, described to decay the interference cancellation signals to obtain deamplification, comprising:
Decay the interference cancellation signals to obtain deamplification according to static decay weight.
It is optionally, described to decay the interference cancellation signals to obtain deamplification, comprising:
Decay the interference cancellation signals to obtain deamplification according to dynamic attenuation weight；
Wherein, the dynamic attenuation weight obtains in the following manner:
Using the minimal attenuation weight within the scope of default decaying weight as the first decaying weight, and determine the first decaying weight
First parameter value of corresponding deamplification；Using the maximum attenuation weight within the scope of default decaying weight as the second decaying power
Weight, and determine the second parameter value of the corresponding deamplification of the second decaying weight；
Determine the corresponding deamplification of median between the first decaying weight and the second decaying weight and self-interference signal
The test superposed signal being overlapped；Wherein, when the parameter value of the test superposed signal is located at default superposed signal
When between third parameter value and second parameter value, the median is updated to second decaying weight；When the examination
When testing the parameter value of superposed signal between first parameter value and the third parameter value, the median is updated to
First decaying weight；When the parameter value of the test superposed signal is equal to the third parameter value, by the median
It is determined as the dynamic attenuation weight.
According to the second aspect of an embodiment of the present disclosure, a kind of cancellation element of full duplex self-interference is provided, electronics is applied to
Equipment, the electronic equipment include transmitter and receiver, and the transmitter and the receiver use identical frequency channels；
Described device includes:
Acquiring unit obtains corresponding interference cancellation signals according to signal to be transmitted, the interference cancellation signals with it is described
Signal to be transmitted opposite in phase；
First superpositing unit, when issuing the signal to be transmitted by the transmitter, by the interference cancellation signals
It is overlapped with the self-interference signal corresponding to the signal to be transmitted that the receiver receives, at least to offset part institute
State self-interference signal.
Optionally, the acquiring unit includes:
Subelement is converted, the signal to be transmitted is converted by balanced-unbalanced transformer to obtain the interference
Eliminate signal.
Optionally, further includes:
Attenuation units decay to obtain deamplification to the interference cancellation signals；
The deamplification and the self-interference signal are overlapped by the second superpositing unit, at least to offset part institute
State self-interference signal.
Optionally, the attenuation units include:
First decaying subelement decays to the interference cancellation signals according to static decay weight to obtain decaying letter
Number.
Optionally, the attenuation units include:
Second decaying subelement decays to the interference cancellation signals according to dynamic attenuation weight to obtain decaying letter
Number；
Wherein, the dynamic attenuation weight obtains in the following manner:
Using the minimal attenuation weight within the scope of default decaying weight as the first decaying weight, and determine the first decaying weight
First parameter value of corresponding deamplification；Using the maximum attenuation weight within the scope of default decaying weight as the second decaying power
Weight, and determine the second parameter value of the corresponding deamplification of the second decaying weight；
Determine the corresponding deamplification of median between the first decaying weight and the second decaying weight and self-interference signal
The test superposed signal being overlapped；Wherein, when the parameter value of the test superposed signal is located at default superposed signal
When between third parameter value and second parameter value, the median is updated to second decaying weight；When the examination
When testing the parameter value of superposed signal between first parameter value and the third parameter value, the median is updated to
First decaying weight；When the parameter value of the test superposed signal is equal to the third parameter value, by the median
It is determined as the dynamic attenuation weight.
According to the third aspect of an embodiment of the present disclosure, a kind of cancellation element of full duplex self-interference, described device packet are provided
Containing transmitter and receiver, the transmitter and the receiver use identical frequency channels；Described device further include:
Processor；
Memory for storage processor executable instruction；
Wherein, the processor is configured to realizing such as the step of any one of above-described embodiment the method.
According to a fourth aspect of embodiments of the present disclosure, a kind of computer readable storage medium is provided, calculating is stored thereon with
Machine instruction is realized when the instruction is executed by processor such as the step of any one of above-described embodiment the method.
The technical scheme provided by this disclosed embodiment can include the following benefits:
As can be seen from the above embodiments, the disclosure is obtained and the signal to be transmitted phase phase by converting from signal to be transmitted
Anti- interference cancellation signals, and the self-interference signal that the interference cancellation signals are generated with signal to be transmitted is overlapped, can be with
At least part self-interference signal is offset, so as to realize transmitting, receive in identical frequency channels and identical time slot
Interior progress improves the efficiency of transmission data；Simultaneously, it is possible to reduce to the occupancy of frequency channels resource.
It should be understood that above general description and following detailed description be only it is exemplary and explanatory, not
The disclosure can be limited.
Detailed description of the invention
The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the disclosure
Example, and together with specification for explaining the principles of this disclosure.
Fig. 1 is a kind of flow chart of the removing method of full duplex self-interference shown according to an exemplary embodiment.
Fig. 2 is the schematic diagram that self-interference signal shown according to an exemplary embodiment is superimposed with interference cancellation signals.
Fig. 3 is the flow chart of the removing method of another full duplex self-interference shown according to an exemplary embodiment.
Fig. 4 is the schematic diagram that transmitter shown according to an exemplary embodiment issues signal to be transmitted.
Fig. 5 is the schematic diagram of determining dynamic attenuation weight shown according to an exemplary embodiment.
Fig. 6 is a kind of block diagram of the cancellation element of full duplex self-interference shown according to an exemplary embodiment.
Fig. 7 is the block diagram of the cancellation element of another full duplex self-interference shown according to an exemplary embodiment.
Fig. 8 is the block diagram of the cancellation element of another full duplex self-interference shown according to an exemplary embodiment.
Fig. 9 is the block diagram of the cancellation element of another full duplex self-interference shown according to an exemplary embodiment.
Figure 10 is the block diagram of the cancellation element of another full duplex self-interference shown according to an exemplary embodiment.
Figure 11 is that a kind of structure of cancellation element for full duplex self-interference shown according to an exemplary embodiment is shown
It is intended to.
Specific embodiment
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistent with the application.On the contrary, they be only with it is such as appended
The example of the consistent device and method of some aspects be described in detail in claims, the application.
It is only to be not intended to be limiting the application merely for for the purpose of describing particular embodiments in term used in this application.
It is also intended in the application and the "an" of singular used in the attached claims, " described " and "the" including majority
Form, unless the context clearly indicates other meaning.It is also understood that term "and/or" used herein refers to and wraps
It may be combined containing one or more associated any or all of project listed.
It will be appreciated that though various information, but this may be described using term first, second, third, etc. in the application
A little information should not necessarily be limited by these terms.These terms are only used to for same type of information being distinguished from each other out.For example, not departing from
In the case where the application range, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as
One information.Depending on context, word as used in this " if " can be construed to " ... when " or " when ...
When " or " in response to determination ".
Fig. 1 is a kind of flow chart of the removing method of full duplex self-interference shown according to an exemplary embodiment, such as Fig. 1
Shown, this method is applied in electronic equipment, may comprise steps of:
In a step 102, corresponding interference cancellation signals are obtained according to signal to be transmitted.
In the present embodiment, the interference cancellation signals and the signal to be transmitted opposite in phase, can be by balance-no
Balance converter (balun) converts the signal to be transmitted to obtain the interference cancellation signals.Wherein, signal to be transmitted
After balun converts, it is divided into transmitting signal and interference cancellation signals two parts (180 degree is differed between phase).Wherein, emit
Power proportions between signal and interference cancellation signals two parts can flexibly be set according to the actual situation, such as the two power phase
Deng or transmitting signal account for 99% etc., the disclosure is limited not to this.Transmitting signal is radiated outside environment by transmitter
In be used for transmission data, and a portion can be received by the receiver to form self-interference signal (phase and transmitting signal phase
Together)；Interference cancellation signals (with the phase phase difference 180 degree between transmitting signal) are then believed at least offsetting the above-mentioned self-interference in part
Number.As shown in Fig. 2, the phase difference between self-interference signal and interference cancellation signals is 180 degree, phase can achieve after the two superposition
The effect (signal after the superposition in such as Fig. 2) mutually offset, so as at least offset the self-interference letter of partial transmitting signal generation
Number.
At step 104, by the transmitter issue the signal to be transmitted when, by the interference cancellation signals with
The self-interference signal corresponding to the signal to be transmitted that the receiver receives is overlapped, at least to offset described in part
Self-interference signal.
In the present embodiment, based on obtained interference cancellation signals, further attenuation operations can be carried out to it to mention
Height offsets the effect of self-interference signal.For example, decaying the interference cancellation signals to obtain deamplification；It declines described
Cut signal is overlapped with the self-interference signal, at least to offset the part self-interference signal.
For the weight of decaying, can decay the interference cancellation signals to be declined according to static decay weight
Cut signal can also decay to obtain deamplification to the interference cancellation signals according to dynamic attenuation weight.
Wherein, the static decay weight is preconfigured fixed numbers.The dynamic attenuation weight can by with
Under type obtains: using the minimal attenuation weight within the scope of default decaying weight as the first decaying weight, and determining the first decaying
First parameter value of the corresponding deamplification of weight；Using the maximum attenuation weight within the scope of default decaying weight as the second decaying
Weight, and determine the second parameter value of the corresponding deamplification of the second decaying weight；Determine the first decaying weight and the second decaying
The test superposed signal that the corresponding deamplification of median and self-interference signal between weight are overlapped；Wherein, when
It, will when the parameter value of the test superposed signal is located between the third parameter value and second parameter value of default superposed signal
The median is updated to second decaying weight；When the parameter value of the test superposed signal is located at first parameter value
When between the third parameter value, the median is updated to first decaying weight；When the test superposed signal
Parameter value be equal to the third parameter value when, the median is determined as the dynamic attenuation weight.Through the above way
Dynamic attenuation weight is obtained, compared to all decaying weights traversed in default decaying weight range, acquisition can be greatly improved
The efficiency of the optimal dynamic attenuation weight of its neutralization effect reduces the occupancy to electronic equipment process resource.
As can be seen from the above embodiments, the disclosure is obtained and the signal to be transmitted phase phase by converting from signal to be transmitted
Anti- interference cancellation signals, and the self-interference signal that the interference cancellation signals are generated with signal to be transmitted is overlapped, can be with
At least part self-interference signal is offset, so as to realize transmitting, receive in identical frequency channels and identical time slot
Interior progress improves the efficiency of transmission data；Simultaneously, it is possible to reduce to the occupancy of frequency channels resource.
In order to make it easy to understand, the technical solution of the disclosure is further described with reference to the accompanying drawing.Fig. 3 is referred to,
Fig. 3 is the flow chart of the removing method of another full duplex self-interference shown according to an exemplary embodiment, as shown in figure 3,
This method is applied in electronic equipment, may comprise steps of:
In step 302, corresponding interference cancellation signals are obtained according to signal to be transmitted.
In the present embodiment, signal to be transmitted can be converted to obtain by balanced-unbalanced transformer (balun)
Interference cancellation signals.Wherein, signal to be transmitted is divided into transmitting signal and interference cancellation signals two parts after balun converts
(180 degree is differed between phase).Wherein, the power proportions emitted between signal and interference cancellation signals two parts can be according to reality
Border situation is flexibly set, for example the two power is equal or transmitting signal accounts for 99% etc., and the disclosure is limited not to this.Transmitting
Signal is radiated outside in environment by transmitter and is used for transmission data, and a portion can be received by the receiver to be formed certainly
Interference signal (phase is identical as transmitting signal)；Interference cancellation signals (with the phase phase difference 180 degree between transmitting signal) are then used
In at least counteracting above-mentioned self-interference signal in part.
In step 304, decay interference cancellation signals to obtain deamplification.
In the present embodiment, based on obtained interference cancellation signals, further attenuation operations can be carried out to it to mention
Height offsets the effect of self-interference signal.As shown in figure 4, signal to be transmitted is divided into transmitting signal and interference cancellation signals by balun.
A part in transmitting signal can be received by the receiver to form self-interference signal.Interference cancellation signals enter attenuator and carry out power
Decaying (decaying weight is controlled by processor) obtains deamplification, and the self-interference signal and deamplification that receiver receives are closing
Realize that superposition forms superposed signal in the device of road, the signal power of the superposed signal is changed into parameter value (such as electricity again by wave detector
Pressure signal) and it is transmitted to processor.Processor can eliminate interference according to static decay weight (i.e. fixed decaying weight)
Signal is decayed to obtain deamplification, can also be decayed interference cancellation signals to obtain according to dynamic attenuation weight
Deamplification.Wherein, dynamic attenuation weight can obtain in the following manner: by the minimal attenuation within the scope of default decaying weight
Weight determines the first parameter value of the corresponding deamplification of the first decaying weight as the first decaying weight；By default decaying
Maximum attenuation weight in proportion range determines the of the corresponding deamplification of the second decaying weight as the second decaying weight
Two parameter values；Determine the corresponding deamplification of median between the first decaying weight and the second decaying weight and self-interference signal
The test superposed signal being overlapped；Wherein, when the parameter value of test superposed signal is located at the third of default superposed signal
Parameter value (can be customized by users, for example the parameter value for corresponding to the return signal of transmitting signal can be chosen) and the second parameter
When between value, which is updated to the second decaying weight；When test superposed signal parameter value be located at the first parameter value and
When between third parameter value, which is updated to the first decaying weight；When the parameter value of test superposed signal is equal to third
When parameter value, which is determined as dynamic attenuation weight.Dynamic attenuation weight is obtained through the above way, compared to traversal
All decaying weights in default decaying weight range, can be greatly improved and obtain the optimal dynamic attenuation weight of its neutralization effect
Efficiency, reduce to the occupancy of electronic equipment process resource.
For example, in one embodiment, processor (can be made by oneself according to the static decay weight of pre-configuration by user
Justice) decay to interference cancellation signals.In another embodiment, as shown in Figure 5: it is assumed that the ginseng of decaying weight and superposed signal
Numerical value is negatively correlated；Default decaying weight range is x1-x4, and corresponding parameter value is y1-y4；Default superposed signal is point c
(x3, y3), i.e. third parameter value are y3.So, x2 pairs of median between the first decaying weight x1 and the second decaying weight x4
The test superposed signal that the deamplification and self-interference signal answered are overlapped is b (x2, y2).Since current test is superimposed
The parameter value y2 of signal is updated to the first decaying weight between the first parameter value y1 and third parameter value y3, by median x2
(being detailed on the downside of Fig. 5 in coordinate system).At this point, updated first decaying weight is x2, the second decaying weight is x4, new test
Superposed signal is e (x5, y5).Execution is recycled in the way of above-mentioned acquisition dynamic attenuation weight, until when test superposed signal
Parameter value be equal to third parameter value y3 when, the median at this time between the first decaying weight and the second decaying weight is determined as
Dynamic attenuation weight, i.e. x3.When the parameter value of decaying weight and superposed signal is positively correlated, the side of dynamic attenuation weight is obtained
Formula is similar to the above, and details are not described herein.
In the present embodiment, based on the dynamic attenuation weight of above-mentioned determination, processor is subsequent can be directly according to the dynamic
Decaying weight decays to interference cancellation signals.
Within step 306, deamplification and self-interference signal are overlapped, at least to offset part self-interference signal.
As can be seen from the above embodiments, the disclosure is obtained and the signal to be transmitted phase phase by converting from signal to be transmitted
Anti- interference cancellation signals, and the self-interference signal that the interference cancellation signals are generated with signal to be transmitted is overlapped, can be with
At least part self-interference signal is offset, so as to realize transmitting, receive in identical frequency channels and identical time slot
Interior progress improves the efficiency of transmission data；Simultaneously, it is possible to reduce to the occupancy of frequency channels resource.
Corresponding with the embodiment of removing method of full duplex self-interference above-mentioned, it is certainly dry that the disclosure additionally provides full duplex
The embodiment for the cancellation element disturbed.
Fig. 6 is a kind of block diagram of the cancellation element of full duplex self-interference shown according to an exemplary embodiment.Referring to figure
6, which includes acquiring unit 61 and the first superpositing unit 62.
The acquiring unit 61 is configured as obtaining corresponding interference cancellation signals according to signal to be transmitted, and the interference is eliminated
Signal and the signal to be transmitted opposite in phase；
First superpositing unit 62 is configured as when issuing the signal to be transmitted by the transmitter, will be described dry
It disturbs elimination signal to be overlapped with the self-interference signal corresponding to the signal to be transmitted that the receiver receives, at least
Offset the part self-interference signal.
As shown in fig. 7, Fig. 7 is the cancellation element of another full duplex self-interference shown according to an exemplary embodiment
Block diagram, for the embodiment on the basis of aforementioned embodiment illustrated in fig. 6, acquiring unit 61 may include: transformation subelement 611.
The transformation subelement 611 is configured as converting the signal to be transmitted by balanced-unbalanced transformer
Obtain the interference cancellation signals.
As shown in figure 8, Fig. 8 is the cancellation element of another full duplex self-interference shown according to an exemplary embodiment
Block diagram, the embodiment can also include: attenuation units 63 and the second superpositing unit on the basis of aforementioned embodiment illustrated in fig. 6
64。
The attenuation units 63 are configured as decaying to obtain deamplification to the interference cancellation signals；
Second superpositing unit 64 is configured as the deamplification and the self-interference signal being overlapped, at least
Offset the part self-interference signal.
It should be noted that attenuation units 63 and the second superpositing unit 64 in above-mentioned Installation practice shown in Fig. 8
Structure also may be embodied in the Installation practice of earlier figures 7, be not limited to this disclosure.
As shown in figure 9, Fig. 9 is the cancellation element of another full duplex self-interference shown according to an exemplary embodiment
Block diagram, for the embodiment on the basis of aforementioned embodiment illustrated in fig. 8, attenuation units 63 may include: the first decaying subelement
631。
The first decaying subelement 631 is configured as decaying to the interference cancellation signals according to static decay weight
To obtain deamplification.
As shown in Figure 10, Figure 10 is the cancellation element of another full duplex self-interference shown according to an exemplary embodiment
Block diagram, for the embodiment on the basis of aforementioned embodiment illustrated in fig. 8, attenuation units 63 may include: the second decaying subelement
632。
The second decaying subelement 632 is configured as decaying to the interference cancellation signals according to dynamic attenuation weight
To obtain deamplification；
Wherein, the dynamic attenuation weight obtains in the following manner:
Using the minimal attenuation weight within the scope of default decaying weight as the first decaying weight, and determine the first decaying weight
First parameter value of corresponding deamplification；Using the maximum attenuation weight within the scope of default decaying weight as the second decaying power
Weight, and determine the second parameter value of the corresponding deamplification of the second decaying weight；
Determine the corresponding deamplification of median between the first decaying weight and the second decaying weight and self-interference signal
The test superposed signal being overlapped；Wherein, when the parameter value of the test superposed signal is located at default superposed signal
When between third parameter value and second parameter value, the median is updated to second decaying weight；When the examination
When testing the parameter value of superposed signal between first parameter value and the third parameter value, the median is updated to
First decaying weight；When the parameter value of the test superposed signal is equal to the third parameter value, by the median
It is determined as the dynamic attenuation weight.
About the device in above-described embodiment, wherein modules execute the concrete mode of operation in related this method
Embodiment in be described in detail, no detailed explanation will be given here.
For device embodiment, since it corresponds essentially to embodiment of the method, so related place is referring to method reality
Apply the part explanation of example.The apparatus embodiments described above are merely exemplary, wherein described be used as separation unit
The unit of explanation may or may not be physically separated, and component shown as a unit can be or can also be with
It is not physical unit, it can it is in one place, or may be distributed over multiple network units.It can be according to actual
The purpose for needing to select some or all of the modules therein to realize disclosure scheme.Those of ordinary skill in the art are not paying
Out in the case where creative work, it can understand and implement.
Correspondingly, the disclosure also provides a kind of cancellation element of full duplex self-interference, described device includes transmitter and connects
Device is received, the transmitter and the receiver use identical frequency channels；Described device further include: processor；For storing
The memory of processor-executable instruction；Wherein, the processor is configured to: corresponding interference is obtained according to signal to be transmitted
Eliminate signal, the interference cancellation signals and the signal to be transmitted opposite in phase；By the transmitter issue it is described to
When emitting signal, the self-interference corresponding to the signal to be transmitted that the interference cancellation signals and the receiver are received
Signal is overlapped, at least to offset the part self-interference signal.
Correspondingly, the disclosure also provides a kind of terminal, the terminal include memory and one or more than one
Program, one of them perhaps more than one program be stored in memory and be configured to by one or more than one
It includes the instruction for performing the following operation that reason device, which executes the one or more programs: being obtained according to signal to be transmitted
Corresponding interference cancellation signals, the interference cancellation signals and the signal to be transmitted opposite in phase；Passing through the transmitter
When issuing the signal to be transmitted, correspond to the letter to be launched for what the interference cancellation signals and the receiver received
Number self-interference signal be overlapped, at least to offset the part self-interference signal.
Figure 11 is a kind of frame of cancellation element 1100 for full duplex self-interference shown according to an exemplary embodiment
Figure.For example, device 1100 can be mobile phone, computer, digital broadcasting terminal, messaging device, game console put down
Panel device, Medical Devices, body-building equipment, personal digital assistant etc..
Referring to Fig.1 1, device 1100 may include following one or more components: processing component 1102, memory 1104,
Power supply module 1106, multimedia component 1108, audio component 1110, the interface 1112 of input/output (I/O), sensor module
1114 and communication component 1116.
The integrated operation of the usual control device 1100 of processing component 1102, such as with display, telephone call, data communication,
Camera operation and record operate associated operation.Processing component 1102 may include one or more processors 1120 to execute
Instruction, to perform all or part of the steps of the methods described above.In addition, processing component 1102 may include one or more moulds
Block, convenient for the interaction between processing component 1102 and other assemblies.For example, processing component 1102 may include multi-media module,
To facilitate the interaction between multimedia component 1108 and processing component 1102.
Memory 1104 is configured as storing various types of data to support the operation in device 1100.These data
Example includes the instruction of any application or method for operating on device 1100, contact data, telephone book data,
Message, picture, video etc..Memory 1104 can by any kind of volatibility or non-volatile memory device or they
Combination is realized, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), it is erasable can
Program read-only memory (EPROM), programmable read only memory (PROM), read-only memory (ROM), magnetic memory, flash memory
Reservoir, disk or CD.
Power supply module 1106 provides electric power for the various assemblies of device 1100.Power supply module 1106 may include power management
System, one or more power supplys and other with for device 1100 generate, manage, and distribute the associated component of electric power.
Multimedia component 1108 includes the screen of one output interface of offer between described device 1100 and user.?
In some embodiments, screen may include liquid crystal display (LCD) and touch panel (TP).If screen includes touch panel,
Screen may be implemented as touch screen, to receive input signal from the user.Touch panel includes that one or more touch passes
Sensor is to sense the gesture on touch, slide, and touch panel.The touch sensor can not only sense touch or sliding is dynamic
The boundary of work, but also detect duration and pressure associated with the touch or slide operation.In some embodiments, more
Media component 1108 includes a front camera and/or rear camera.When device 1100 is in operation mode, as shot mould
When formula or video mode, front camera and/or rear camera can receive external multi-medium data.Each preposition camera shooting
Head and rear camera can be a fixed optical lens system or have focusing and optical zoom capabilities.
Audio component 1110 is configured as output and/or input audio signal.For example, audio component 1110 includes a wheat
Gram wind (MIC), when device 1100 is in operation mode, when such as call mode, recording mode, and voice recognition mode, microphone quilt
It is configured to receive external audio signal.The received audio signal can be further stored in memory 1104 or via communication
Component 1116 is sent.In some embodiments, audio component 1110 further includes a loudspeaker, is used for output audio signal.
I/O interface 1112 provides interface, above-mentioned peripheral interface module between processing component 1102 and peripheral interface module
It can be keyboard, click wheel, button etc..These buttons may include, but are not limited to: home button, volume button, start button and
Locking press button.
Sensor module 1114 includes one or more sensors, and the state for providing various aspects for device 1100 is commented
Estimate.For example, sensor module 1114 can detecte the state that opens/closes of device 1100, the relative positioning of component, such as institute
The display and keypad that component is device 1100 are stated, sensor module 1114 can be with detection device 1100 or device 1,100 1
The position change of a component, the existence or non-existence that user contacts with device 1100,1100 orientation of device or acceleration/deceleration and dress
Set 1100 temperature change.Sensor module 1114 may include proximity sensor, be configured in not any physics
It is detected the presence of nearby objects when contact.Sensor module 1114 can also include optical sensor, as CMOS or ccd image are sensed
Device, for being used in imaging applications.In some embodiments, which can also include acceleration sensing
Device, gyro sensor, Magnetic Sensor, pressure sensor or temperature sensor.
Communication component 1116 is configured to facilitate the communication of wired or wireless way between device 1100 and other equipment.Dress
The wireless network based on communication standard, such as WiFi can be accessed by setting 1100,2G or 3G or their combination.It is exemplary at one
In embodiment, communication component 1116 receives broadcast singal or broadcast correlation from external broadcasting management system via broadcast channel
Information.In one exemplary embodiment, the communication component 1116 further includes near-field communication (NFC) module, to promote short distance
Communication.For example, radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra wide band can be based in NFC module
(UWB) technology, bluetooth (BT) technology and other technologies are realized.
In the exemplary embodiment, device 1100 can be by one or more application specific integrated circuit (ASIC), number
Signal processor (DSP), digital signal processing appts (DSPD), programmable logic device (PLD), field programmable gate array
(FPGA), controller, microcontroller, microprocessor or other electronic components are realized, for executing the above method.
In the exemplary embodiment, a kind of non-transitorycomputer readable storage medium including instruction, example are additionally provided
It such as include the memory 1104 of instruction, above-metioned instruction can be executed by the processor 1120 of device 1100 to complete the above method.Example
Such as, the non-transitorycomputer readable storage medium can be ROM, random access memory (RAM), CD-ROM, tape, soft
Disk and optical data storage devices etc..
Those skilled in the art will readily occur to its of the disclosure after considering specification and practicing disclosure disclosed herein
Its embodiment.This application is intended to cover any variations, uses, or adaptations of the disclosure, these modifications, purposes or
Person's adaptive change follows the general principles of this disclosure and including the undocumented common knowledge in the art of the disclosure
Or conventional techniques.The description and examples are only to be considered as illustrative, and the true scope and spirit of the disclosure are by following
Claim is pointed out.
It should be understood that the present disclosure is not limited to the precise structures that have been described above and shown in the drawings, and
And various modifications and changes may be made without departing from the scope thereof.The scope of the present disclosure is only limited by the accompanying claims.
Claims (12)
1. a kind of removing method of full duplex self-interference, which is characterized in that be applied to electronic equipment, the electronic equipment includes hair
Emitter and receiver, the transmitter and the receiver use identical frequency channels；The described method includes:
Corresponding interference cancellation signals, the interference cancellation signals and the signal to be transmitted phase are obtained according to signal to be transmitted
On the contrary；
When issuing the signal to be transmitted by the transmitter, the interference cancellation signals and the receiver are received
The self-interference signal corresponding to the signal to be transmitted be overlapped, at least to offset the part self-interference signal.
2. the method according to claim 1, wherein described obtain corresponding interference elimination according to signal to be transmitted
Signal, comprising:
The signal to be transmitted is converted by balanced-unbalanced transformer to obtain the interference cancellation signals.
3. the method according to claim 1, wherein further include:
Decay the interference cancellation signals to obtain deamplification；
The deamplification and the self-interference signal are overlapped, at least to offset the part self-interference signal.
4. according to the method described in claim 3, it is characterized in that, described decay to obtain to the interference cancellation signals
Deamplification, comprising:
Decay the interference cancellation signals to obtain deamplification according to static decay weight.
5. according to the method described in claim 3, it is characterized in that, described decay to obtain to the interference cancellation signals
Deamplification, comprising:
Decay the interference cancellation signals to obtain deamplification according to dynamic attenuation weight；
Wherein, the dynamic attenuation weight obtains in the following manner:
Using the minimal attenuation weight within the scope of default decaying weight as the first decaying weight, and determine that the first decaying weight is corresponding
Deamplification the first parameter value；Using the maximum attenuation weight within the scope of default decaying weight as the second decaying weight, and
Determine the second parameter value of the corresponding deamplification of the second decaying weight；
Determine that the corresponding deamplification of median between the first decaying weight and the second decaying weight and self-interference signal carry out
It is superimposed obtained test superposed signal；Wherein, when the parameter value of the test superposed signal is located at the third of default superposed signal
When between parameter value and second parameter value, the median is updated to second decaying weight；When the test is folded
When the parameter value of plus signal is between first parameter value and the third parameter value, the median is updated to described
First decaying weight；When the parameter value of the test superposed signal is equal to the third parameter value, the median is determined
For the dynamic attenuation weight.
6. a kind of cancellation element of full duplex self-interference, which is characterized in that be applied to electronic equipment, the electronic equipment includes hair
Emitter and receiver, the transmitter and the receiver use identical frequency channels；Described device includes:
Acquiring unit obtains corresponding interference cancellation signals according to signal to be transmitted, the interference cancellation signals with it is described pending
It is opposite to penetrate signal phase；
First superpositing unit, when issuing the signal to be transmitted by the transmitter, by the interference cancellation signals and institute
The self-interference signal corresponding to the signal to be transmitted that receiver receives is stated to be overlapped, it is described certainly at least to offset part
Interference signal.
7. device according to claim 6, which is characterized in that the acquiring unit includes:
Subelement is converted, the signal to be transmitted is converted by balanced-unbalanced transformer to obtain the interference elimination
Signal.
8. device according to claim 6, which is characterized in that further include:
Attenuation units decay to obtain deamplification to the interference cancellation signals；
The deamplification and the self-interference signal are overlapped by the second superpositing unit, described certainly at least to offset part
Interference signal.
9. device according to claim 8, which is characterized in that the attenuation units include:
First decaying subelement, decays to obtain deamplification to the interference cancellation signals according to static decay weight.
10. device according to claim 8, which is characterized in that the attenuation units include:
Second decaying subelement, decays to obtain deamplification to the interference cancellation signals according to dynamic attenuation weight；
Wherein, the dynamic attenuation weight obtains in the following manner:
Using the minimal attenuation weight within the scope of default decaying weight as the first decaying weight, and determine that the first decaying weight is corresponding
Deamplification the first parameter value；Using the maximum attenuation weight within the scope of default decaying weight as the second decaying weight, and
Determine the second parameter value of the corresponding deamplification of the second decaying weight；
Determine that the corresponding deamplification of median between the first decaying weight and the second decaying weight and self-interference signal carry out
It is superimposed obtained test superposed signal；Wherein, when the parameter value of the test superposed signal is located at the third of default superposed signal
When between parameter value and second parameter value, the median is updated to second decaying weight；When the test is folded
When the parameter value of plus signal is between first parameter value and the third parameter value, the median is updated to described
First decaying weight；When the parameter value of the test superposed signal is equal to the third parameter value, the median is determined
For the dynamic attenuation weight.
11. a kind of cancellation element of full duplex self-interference, which is characterized in that described device includes transmitter and receiver, described
Transmitter and the receiver use identical frequency channels；Described device further include:
Processor；
Memory for storage processor executable instruction；
Wherein, the processor is configured to realizing such as the step of any one of claim 1-5 the method.
12. a kind of computer readable storage medium, is stored thereon with computer instruction, which is characterized in that the instruction is by processor
It is realized when execution such as the step of any one of claim 1-5 the method.
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| CN111131103A (en) * | 2019-12-31 | 2020-05-08 | 京信通信系统（中国）有限公司 | Multimode signal interference elimination method and system |
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