CN106130594A - Co-channel full duplex communication means and device while suppressing based on frequency domain self-interference - Google Patents
Co-channel full duplex communication means and device while suppressing based on frequency domain self-interference Download PDFInfo
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- CN106130594A CN106130594A CN201610556116.2A CN201610556116A CN106130594A CN 106130594 A CN106130594 A CN 106130594A CN 201610556116 A CN201610556116 A CN 201610556116A CN 106130594 A CN106130594 A CN 106130594A
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- leakc
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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
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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
- H04L5/1423—Two-way operation using the same type of signal, i.e. duplex for simultaneous baseband signals
Abstract
The invention provides a kind of based on co-channel full duplex communication means and device while the suppression of frequency domain self-interference, perform to transmit and collect mail operation simultaneously；It is mixed with local oscillation signal after intermediate-freuqncy signal being amplified when transmitting, obtains up-conversion signal and launched by antenna；Receive aerial signal by antenna during the collection of letters, be mixed with local oscillation signal, obtain down-conversion signal；The inversion signal of intermediate-freuqncy signal is mixed with local oscillation signal, carries out impedance matching with antenna and generate the inversion signal of self-interference signal；The self-interference signal and the inversion signal thereof that form down-conversion signal, up-conversion signal are weighted summation and amplify, and suppress self-interference signal, obtain the aerial signal being exaggerated.The present invention can improve level of integrated system, reduces power consumption, it is achieved co-channel full duplex communication simultaneously, meets wireless communication technology field and promotes the requirement of spectrum efficiency.
Description
Technical field
The invention belongs to wireless communication technology field, specifically a kind of duplex communication method and device.
Background technology
Along with wireless communication technology and the development of business, the problem that frequency spectrum resource is deficient is becoming increasingly acute, in particular with 5G
The rise of network, has higher requirement to frequency resource.Therefore, how to improve the availability of frequency spectrum, in limited frequency band
High-speed transfer information, becomes problem demanding prompt solution.In recent years, co-channel full duplex communication simultaneously is proved to feasible, during with tradition
Divide duplex to compare with FDD, spectrum efficiency and channel capacity can be made in co-channel full duplex communication theory to promote 1 times, energy simultaneously
Obtain higher data transmission rate and handling capacity, thus obtain increasing concern, become the alternative core key technology of 5G
One of.
Co-channel full duplex communication simultaneously carries out reception and the transmitting of signal at same frequency, same channel, same time slot, from
Transmit path to collection of letters path and there is the leakage of high power carrier signal, receiving path is formed self-interference, on the one hand brings reception
Machine subtract quick effect, on the other hand bring analog-digital converter, even radio-frequency front-end is saturated.Therefore, the most effectively suppress certainly
Interference, thus realizing co-channel full duplex communication simultaneously is the Basic Problems that must first solve.
Co-channel full duplex communication simultaneously can be realized by self-interference signal being effectively isolated or suppressing.As it is shown in figure 1, root
According to the difference of the position in transceiver communication link, existing self-interference suppression technology specifically includes that a) spatial domain self-interference
Suppression: be based primarily upon many dual-mode antennas distance and the configuration of polarization mode and antenna beam figuration etc. and press down realizing self-interference
System；B) radio frequency domains self-interference suppression: use directional coupler, vector modulator, attenuator and phase shifter etc. to rebuild self-interference letter
Number and offset to realize self-interference suppression；C) numeric field self-interference suppression: estimate based on self-interference and channel is estimated to rebuild from dry
Disturb and offset and realize self-interference suppression.Wherein the suppression of numeric field self-interference is premised on spatial domain and radio frequency domains self-interference suppress, and
The necessary complement suppressed as spatial domain and radio frequency domains self-interference.
The self-interference suppression degree of depth being not less than 20dB, and cascade based on above-mentioned not same area is all achieved in above-mentioned not same area
The suppression of associating self-interference can obtain the higher self-interference suppression degree of depth, and it is difficult that what solution self-interference was brought subtracts quick or saturated technology
Topic, thus realize co-channel full duplex communication simultaneously.But based on co-channel full duplex communication party while existing self-interference suppression technology
There is the problem that integrated level is low, power consumption is high in method, particularly in cost, volume and limited power application scenarios, the problems referred to above are outstanding
For seriously.
Summary of the invention
In order to overcome the deficiencies in the prior art, the present invention provides a kind of complete with frequency while suppressing based on frequency domain self-interference
Duplex communication method and device, to improve level of integrated system, to reduce power consumption, it is achieved co-channel full duplex communication simultaneously, meet wireless
Communication technical field promotes the requirement of spectrum efficiency.
The technical solution adopted for the present invention to solve the technical problems is: while one suppresses based on frequency domain self-interference
Co-channel full duplex communication means, perform to transmit and collect mail operation simultaneously；The described operation that transmits is to digital signal Xn number
Mould is changed, and obtains intermediate-freuqncy signal Tx, is mixed with local oscillation signal, obtains up-conversion signal and pass through sky after intermediate-freuqncy signal Tx being amplified
Line is launched, and the intermediate-freuqncy signal after amplification concurrently forms self-interference signal Leak；Described collection of letters operation is to receive sky by antenna
Middle signal, the local oscillation signal mixing with described, obtain down-conversion signal IFant；By inversion signal Txr and the institute of intermediate-freuqncy signal Tx
The local oscillation signal mixing stated, the adjustable impedance network of frequency mixing module connection and Antenna Impedance Matching, generate with reference to self-interference signal
Leakc, Leakc and Leak opposite in phase；Described IFant, Leak and Leakc are carried out self-interference suppression in frequency domain and puts
Greatly, suppress described Leak with described Leakc, obtain the down-conversion signal A β IFant being exaggerated simultaneously.
Described IFant, Leak and Leakc frequency domain carry out self-interference suppression and amplify use to described IFant,
Leak and Leakc is weighted the method for summation and realizes, and the weighter factor of described Leakc is α, and described Leak and IFant adds
Weight factor is β, and amplification is A；Adjust described α and described β, make α Leakc+ β Leak=0, suppress self-interference signal, obtain
The aerial signal A β IFant being exaggerated.
The present invention also provides for a kind of based on the device of co-channel full duplex communication while the suppression of frequency domain self-interference, including sky
Line, passive frequency mixing module of N phase place, No. two passive frequency mixing module of N phase place, intermediate frequency low noise amplification/self-interference suppression module,
Adjustable impedance network, digital baseband block, D/A converter module and amplification module.
Described digital baseband block produces digital signal Xn and the inversion signal Xnr of digital signal, digital signal Xn warp
Cross D/A converter module and be converted to intermediate-freuqncy signal Tx, after amplification module amplifies, input a passive frequency mixing module of N phase place, with
Obtain up-conversion signal after local oscillation signal mixing, launched by antenna；Described antenna receives aerial signal simultaneously, by No. one
The passive frequency mixing module of N phase place is mixed with local oscillation signal, obtains down-conversion signal, the self-interference signal formed with intermediate-freuqncy signal Tx
Leak is simultaneously entered intermediate frequency low noise amplification/self-interference suppression module；The inversion signal Xnr of described digital signal turns through digital-to-analogue
Die change block is converted to intermediate-freuqncy signal Txr, inputs No. two passive frequency mixing module of N phase place and local oscillation signal after amplification module amplifies
Mixing；No. two described passive frequency mixing module of N phase place connect adjustable impedance network, adjust the adjustable impedance net that frequency mixing module connects
Network and Antenna Impedance Matching, generate with reference to self-interference signal Leakc, Leakc and Leak opposite in phase；Described Leakc is inputted
Intermediate frequency low noise amplification/self-interference suppression module, is weighted summation with described IFant, Leak and amplifies, described Leakc's
Weighter factor is α, and the weighter factor of described Leak and IFant is β, and amplification is A；Adjust described α and described β, make α
Leakc+ β Leak=0, suppresses self-interference signal, obtains the aerial signal A β IFant being exaggerated.
The invention has the beneficial effects as follows:
1) present invention can realize based on single antenna, it is not necessary to radio frequency low-noise amplifier, the passive frequency mixing module of N phase place, in
Frequently the module such as low noise amplification/self-interference suppression module, adjustable impedance network and digital baseband can be based on semiconductor technology
Integration realization, has higher integrated level；
2) a passive frequency mixing module of N phase place is directly connected with antenna, simultaneously realize receive signal and launch signal upper/
Down coversion, self-interference suppression reconstruct and suppression are all carried out in frequency domain.Due to without radio frequency low-noise amplifier, and frequency domain from
Bandwidth of operation and the rate request of AF panel are low, thus low in energy consumption.
Accompanying drawing explanation
Fig. 1 is existing self-interference suppression technology scattergram in transceiver link diverse location territory；
Fig. 2 be the present invention based on frequency domain self-interference suppress while co-channel full duplex communication means schematic diagram；
Fig. 3 is N phase place passive filter and drive clock sequential chart.
Detailed description of the invention
The present invention is further described with embodiment below in conjunction with the accompanying drawings, and the present invention includes but are not limited to following enforcement
Example.
The present invention reconstructs the inversion signal Leakc of self-interference signal Leak in digital baseband domain and frequency domain, and at intermediate frequency
Territory suppresses described Leak；(N is for radio frequency domains transmitting and the radio frequency domains shared same antenna of reception and a passive frequency mixing module of N phase place
Natural number), realize signal reception down coversion simultaneously and launch signal Tx up-conversion the function launched, thus completing simultaneously
Co-channel full duplex communicates.
The present invention propose based on frequency domain self-interference suppress while co-channel full duplex communication means perform to transmit simultaneously and
Collect mail and operate, be achieved by the steps of respectively:
1. transmit operation:
Step 1: described digital baseband and D/A converter module produce the inversion signal Txr of intermediate-freuqncy signal Tx and Tx simultaneously；
Step 2: described Tx sends into a N phase place passive frequency mixing module up-conversion after amplifying, and up-conversion output signal is passed through
Described antenna enters spatial domain and launches.
Tx concurrently forms self-interference signal Leak after amplification.
2. collect mail and operate:
Step 1: described antenna receives aerial signal, sends into a described passive frequency mixing module of N phase place, to described aerial letter
Number down coversion, exports down-conversion signal IFant；
Step 2: described Txr sends into No. two passive frequency mixing module of N phase place after amplifying, adjusts described adjustable impedance network and generates
The anti-phase Leakc of self-interference signal Leak；
Step 3: described IFant, described Leak and described Leakc are simultaneously fed into intermediate frequency low noise amplification/self-interference and eliminate
Module；
Step 4: described IFant is amplified by described intermediate frequency low noise amplification/self-interference cancellation module, and simultaneously to described
Leak suppresses.
In above-mentioned steps, self-interference signal Leak is suppressed the form sued for peace by weighter factor realize.Note is described
The weighter factor of Leakc is α, and the weighter factor of described Leak and described IFant is β, remembers described intermediate frequency low noise amplification/from dry
The amplification disturbing cancellation module is A, and output signal is designated as IF=A [α Leakc+ β (Leak+IFant)].Adjust described α and institute
State β, make: α Leakc+ β Leak=0, IF=A β IFant.Therefore, self-interference signal is suppressed, and described intermediate frequency low noise amplification/
The described aerial signal A β IFant that the output of self-interference cancellation module is exaggerated.
As in figure 2 it is shown, the device of co-channel full duplex communication while that the present invention also providing for a kind of, at least include antenna, a N
The passive frequency mixing module of phase place, No. two passive frequency mixing module of N phase place, intermediate frequency low noise amplification/self-interference suppression module, adjustable impedance
Network, digital baseband and D/A converter module.The connected mode of above-mentioned module is: a described passive frequency mixing module of N phase place
One end is connected with described antenna, and the other end connects the Tx end of described D/A converter module by amplifying circuit and described intermediate frequency is low
2 inputs of noise amplification/self-interference cancellation module.The Txr end of described D/A converter module is simultaneously connected with described intermediate frequency low noise
1 input of sound amplification/self-interference cancellation module and the described No. two passive frequency mixing module of N phase place.Described No. two N phase places are passive
Frequency mixing module connects described adjustable impedance network.
Wherein, the passive frequency mixing module of N phase place is applied at wireless communication field in recent years, by N number of semiconductor switch MOS
Pipe parallel connection is constituted, and source (or leakage) end of each metal-oxide-semiconductor is connected to antenna, and leakage (or source) end is connected to late-class circuit.Metal-oxide-semiconductor
Grid end is not overlapped local oscillations clock Ph1, Ph2 by N phase place ..., PhN drives (the time clock cycle is T), with reference to shown in Fig. 3.This
Invention utilizes N phase place passive frequency mixer to the down coversion of antenna receiving signal and the two-way transparent spy of transmitting baseband signal up-conversion
Property, in frequency domain, reconstruct self-interference signal Leak and offset suppression, thus realizing co-channel full duplex communication simultaneously.
It should be noted that the present invention propose based on frequency domain self-interference suppress while co-channel full duplex communication means
And device is with the obvious advantage at the aspect such as power consumption, integrated level: 1) combine Fig. 1 and Fig. 2, the present invention realizes self-interference in frequency domain and presses down
System, reduces the operating frequency of circuit and the operating rate of circuit.Circuit power consumption is directly proportional to circuit operating rate, and without penetrating
Frequently low-noise amplifier, therefore, power consumption is reduced.Additionally, suppress compared to spatial domain and radio frequency domains self-interference, intermediate frequency self-interference
Suppress low to the sensitivity of ghost effect, there is more excellent technology stability.2) present invention can realize based on single antenna, N phase place
The two-way transparency of passive frequency mixing module can realize launching signal up-conversion and receiving signal down coversion simultaneously, it is not necessary to radio frequency
Low-noise amplifier and upper frequency mixer.And the passive frequency mixing module of N phase place, adjustable impedance unit, intermediate frequency low noise amplification/self-interference
Suppression module and digital baseband and IF signal processing module can realize based on semiconductor technology, and integrated level is high.
Described above is only presently preferred embodiments of the present invention, not in order to limit the present invention.All on basis of the present invention
Any modification, equivalent substitution and improvement etc. done, all within protection scope of the present invention.
Claims (3)
1. one kind based on frequency domain self-interference suppress while co-channel full duplex communication means, it is characterised in that: simultaneously perform send out
Letter and operation of collecting mail；The described operation that transmits is that digital signal Xn is carried out digital-to-analogue conversion, obtains intermediate-freuqncy signal Tx, is believed by intermediate frequency
Number Tx is mixed with local oscillation signal after amplifying, and obtains up-conversion signal and launches by antenna, the shape while of intermediate-freuqncy signal after amplification
Become self-interference signal Leak；Described collection of letters operation is to receive aerial signal by antenna, the local oscillation signal mixing with described, obtains
To down-conversion signal IFant；Being mixed with described local oscillation signal by the inversion signal Txr of intermediate-freuqncy signal Tx, frequency mixing module connects
Adjustable impedance network and Antenna Impedance Matching, generate with reference to self-interference signal Leakc, Leakc and Leak opposite in phase；To institute
State IFant, Leak and Leakc and carry out self-interference suppression and amplification in frequency domain, suppress described Leak with described Leakc, simultaneously
Obtain the down-conversion signal A β IFant being exaggerated.
The most according to claim 1 based on co-channel full duplex communication means, its feature while the suppression of frequency domain self-interference
It is: described IFant, Leak and Leakc carries out self-interference suppression in frequency domain and amplify employing to described IFant, Leak
With Leakc be weighted summation method realize, the weighter factor of described Leakc is α, the weighting of described Leak and IFant because of
Son is β, and amplification is A；Adjust described α and described β, make α Leakc+ β Leak=0, suppress self-interference signal, obtain being put
Big aerial signal A β IFant.
3. one kind realizes filling based on co-channel full duplex communication while the suppression of frequency domain self-interference of method described in claim 1
Put, including antenna, the passive frequency mixing module of N phase place, No. two passive frequency mixing module of N phase place, intermediate frequency low noise amplification/self-interferences
Suppression module, adjustable impedance network, digital baseband block, D/A converter module and amplification module, it is characterised in that: described number
Word baseband module produces digital signal Xn and the inversion signal Xnr of digital signal, and digital signal Xn turns through D/A converter module
It is changed to intermediate-freuqncy signal Tx, after amplification module amplifies, inputs a passive frequency mixing module of N phase place, after being mixed with local oscillation signal
To up-conversion signal, launched by antenna；Described antenna receives aerial signal simultaneously, by a N phase place passive mixing mould
Block is mixed with local oscillation signal, obtains down-conversion signal, and the self-interference signal Leak formed with intermediate-freuqncy signal Tx is simultaneously entered intermediate frequency
Low noise amplification/self-interference suppression module；The inversion signal Xnr of described digital signal is converted to intermediate frequency through D/A converter module
Signal Txr, inputs No. two passive frequency mixing module of N phase place after amplification module amplifies and is mixed with local oscillation signal；No. two described N
The passive frequency mixing module of phase place connects adjustable impedance network, adjusts adjustable impedance network and antenna impedance that frequency mixing module connects
Join, generate with reference to self-interference signal Leakc, Leakc and Leak opposite in phase；By described Leakc input intermediate frequency low noise amplification/
Self-interference suppression module, is weighted summation with described IFant, Leak and amplifies, and the weighter factor of described Leakc is α, described
The weighter factor of Leak and IFant is β, and amplification is A；Adjust described α and described β, make α Leakc+ β Leak=0, suppression
Self-interference signal, obtains the aerial signal A β IFant being exaggerated.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108206734A (en) * | 2016-12-20 | 2018-06-26 | 北京大学 | A kind of full duplex self-interference removing method based on SSK |
| CN108540165A (en) * | 2018-03-07 | 2018-09-14 | 西安电子科技大学 | Single pair idol array element is eliminated in single antenna co-channel full duplex communication simultaneously from the/method mutually interfered |
| CN110098849A (en) * | 2018-01-31 | 2019-08-06 | 瑞士优北罗股份有限公司 | Method for the device of multiplexed signals, wireless telecom equipment and multiplexed signals |
| CN113452393A (en) * | 2021-06-29 | 2021-09-28 | 中国人民解放军国防科技大学 | Single-channel radio frequency anti-saturation device and method based on FBAR filtering delay structure |
| CN113872898A (en) * | 2021-09-18 | 2021-12-31 | 中山大学 | Method and system for digital domain self-interference suppression based on bounded component analysis |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070053414A1 (en) * | 2003-05-01 | 2007-03-08 | Koninklijke Philips Electronics N.V. | Full duplex multimode transceiver |
| CN103248594A (en) * | 2012-02-14 | 2013-08-14 | 吴嶽 | Method for realizing co-frequency full duplex wireless communication |
| CN104716980A (en) * | 2015-01-13 | 2015-06-17 | 中国人民解放军总参谋部第六十三研究所 | Method for eliminating self interference of multiple same-time same-frequency full-duplex radio frequency sub bands |
| CN104954307A (en) * | 2015-05-21 | 2015-09-30 | 电子科技大学 | Same-time and same-frequency full-duplex limitation self-interference cancelling system |
| CN105099495A (en) * | 2015-08-06 | 2015-11-25 | 惠州Tcl移动通信有限公司 | Co-time co-frequency full duplex terminal sharing antenna in receiving and transmitting and communication method thereof |
| CN105119629A (en) * | 2015-07-10 | 2015-12-02 | 惠州Tcl移动通信有限公司 | Simultaneous co-frequency full duplex terminal and system |
-
2016
- 2016-07-14 CN CN201610556116.2A patent/CN106130594B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070053414A1 (en) * | 2003-05-01 | 2007-03-08 | Koninklijke Philips Electronics N.V. | Full duplex multimode transceiver |
| CN103248594A (en) * | 2012-02-14 | 2013-08-14 | 吴嶽 | Method for realizing co-frequency full duplex wireless communication |
| CN104716980A (en) * | 2015-01-13 | 2015-06-17 | 中国人民解放军总参谋部第六十三研究所 | Method for eliminating self interference of multiple same-time same-frequency full-duplex radio frequency sub bands |
| CN104954307A (en) * | 2015-05-21 | 2015-09-30 | 电子科技大学 | Same-time and same-frequency full-duplex limitation self-interference cancelling system |
| CN105119629A (en) * | 2015-07-10 | 2015-12-02 | 惠州Tcl移动通信有限公司 | Simultaneous co-frequency full duplex terminal and system |
| CN105099495A (en) * | 2015-08-06 | 2015-11-25 | 惠州Tcl移动通信有限公司 | Co-time co-frequency full duplex terminal sharing antenna in receiving and transmitting and communication method thereof |
Non-Patent Citations (5)
| Title |
|---|
| JUN WANG; HONGZHI ZHAO; YOUXI TANG: "A RF adaptive least mean square algorithm for self-interference cancellation in co-frequency co-time full duplex systems", 《2014 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS (ICC)》 * |
| YUJIE LI; LINGYUN SUN; CAIDAN ZHAO; LIANFEN HUANG: "A digital self-interference cancellation algorithm based on spectral estimation in co-time co-frequency full duplex system", 《2015 10TH INTERNATIONAL CONFERENCE ON COMPUTER SCIENCE & EDUCATION (ICCSE)》 * |
| 吴翔宇，沈莹，唐友喜: "室内环境下2.6GHz同时同频全双工自干扰信道测量与建模", 《电子学报》 * |
| 徐强等: "同时同频全双工LTE射频自干扰抑制能力分析及实验验证", 《电子与信息学报》 * |
| 王俊，赵宏志等: "同时同频全双工场景中的射频域自适应干扰抵消", 《电子与信息学报》 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108206734A (en) * | 2016-12-20 | 2018-06-26 | 北京大学 | A kind of full duplex self-interference removing method based on SSK |
| CN108206734B (en) * | 2016-12-20 | 2020-09-08 | 北京大学 | Full-duplex self-interference elimination method based on SSK |
| CN110098849A (en) * | 2018-01-31 | 2019-08-06 | 瑞士优北罗股份有限公司 | Method for the device of multiplexed signals, wireless telecom equipment and multiplexed signals |
| CN108540165A (en) * | 2018-03-07 | 2018-09-14 | 西安电子科技大学 | Single pair idol array element is eliminated in single antenna co-channel full duplex communication simultaneously from the/method mutually interfered |
| CN108540165B (en) * | 2018-03-07 | 2020-06-09 | 西安电子科技大学 | Method for eliminating self/mutual interference of single-dual array element in single-antenna simultaneous same-frequency full duplex communication |
| CN113452393A (en) * | 2021-06-29 | 2021-09-28 | 中国人民解放军国防科技大学 | Single-channel radio frequency anti-saturation device and method based on FBAR filtering delay structure |
| CN113452393B (en) * | 2021-06-29 | 2022-06-21 | 中国人民解放军国防科技大学 | Single-channel radio frequency anti-saturation device and method based on FBAR filtering time delay structure |
| CN113872898A (en) * | 2021-09-18 | 2021-12-31 | 中山大学 | Method and system for digital domain self-interference suppression based on bounded component analysis |
| CN113872898B (en) * | 2021-09-18 | 2024-03-29 | 中山大学 | Digital domain self-interference suppression method and system based on bounded component analysis |
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