CN108365863A - A kind of device and counteracting method with reception out-of-band interference in adaptive cancellation wireless transceiver system - Google Patents

Abstract

A kind of device with reception out-of-band interference in adaptive cancellation wireless transceiver system, its function is to filter out transmitting signal through trapper from the signal of radio-frequency receiving-transmitting vias couple, using amplification and power splitter branch, bucking circuit is arrived after signal is delayed all the way, the reception signal that another way is generated by reception signal generation unit receives signal cancellation in bucking circuit after amplitude modulation/phase modulation with former, data processing unit adjusts amplitude modulation and phase modulation device according to the size for receiving the signal that signal deteching circuit detects, it is less than preset value until receiving signal, the amplitude and phase of offsetting interference signal are adjusted according to the size of the reception interference signal detected by data processing unit again, interference signal through overregulating is fed into the interference signal received in primary path counteracting primary path, to solve the problems, such as to receive primary path interference.The application can will adaptively receive interference signal according to the variation for receiving interference signal and offset, and overcome the shortcomings that conventional filter cannot adaptively filter out interference with the variation of interference signal.

Description

It is a kind of with the device for receiving out-of-band interference in adaptive cancellation wireless transceiver system and Counteracting method

Technical field

This application involves field of communication technology, more particularly to it is a kind of have in adaptive cancellation wireless transceiver system receive The device and counteracting method of out-of-band interference.

Background technology

With the fast development of the continuous upgrading and Internet of Things of cordless communication network, various frequency ranges, various standards The quantity of cordless communication network sharply increases, and the interference problem between wireless network and network is increasingly severe, while to wireless network The radio frequency design of network equipment and the design of the network planning bring serious challenge.

The wireless device of existing network solves net by either internally or externally increasing anti-interference filter in equipment The problem of being interfered with each other between network.And limited by filter material self character, proximal end presses down in various filter design procedures Performance processed is difficult design, the on the one hand inhibition within the 1M of proximal end, it is difficult to accomplish tens dB, to the strong jamming to proximal end Compare it is difficult filter out, on the other hand, existing filter in the rejection characteristic of each frequency point be it is fixed, can not be with wireless device The difference of site of deployment disturbance frequency and signal strength and adaptively changing, therefore once live out-of-band interference is to become Change, is that can not solve the problems, such as that live base station receives out-of-band interference using filter, it is sensitive so as to cause the reception of base station Degree is deteriorated, and affects the coverage area and speech quality of base station, thus how to provide a kind of frequency and power adaptive it is low at Originally, efficient, the high base station system reception out-of-band interference canceller for inhibiting ratio is extremely urgent, imperative.

Invention content

This application provides a kind of with the device and the side that receive out-of-band interference in adaptive cancellation wireless transceiver system Method.

Wherein, include with the device for receiving out-of-band interference in adaptive cancellation wireless transceiver system：Radio-frequency receiving-transmitting access And multichannel coupled switch filter unit A, signal cancellation unit B is received, signal generation unit C is received, receives signal frequency detecting circuit D, signal synchronization unit E receive interference signal offset unit F, data processing unit G；

The radio-frequency receiving-transmitting access and multichannel coupled switch filter unit A are by strip line or coaxial cable A3, the first coupling Device A2, the second coupler A4, third coupler A5, power feed circuit A6, the first RF switch A7, the second RF switch A9, Third RF switch A10, the 4th RF switch A12, the 5th RF switch A13, the 6th RF switch A15, the first trapper A8, the second trapper A11 and third trapper A14 are constituted；

The coupled output of the first coupler A2 connects the input terminal of the first RF switch, the first RF switch First output end connects the input terminal of the first trapper A8, and the output end of the first trapper connects the first of the second RF switch Input port, the second output terminal mouth of the first RF switch A7 and the second input port of the second RF switch are connected, and second penetrates The output end of frequency switch A9 is connected to low noise amplifier circuit；First trapper A8, the second trapper A11 and the third Trapper A14 is for filtering out the first coupler A2, the second coupler A4, third coupler A5 from radio-frequency receiving-transmitting main path couplings One end of the transmitting signal come in, the strip line or coaxial cable A3 are connected with antenna for base station, the other end and power feed Circuit A6 is connected, and power feed circuit A6 is connected with the antenna opening of wireless transceiver equipment, and strip line or coaxial cable A3 are logical The existing powerful transmitting signal crossed, and have low power reception signal；

When the present apparatus works in FDD base station systems or TDD base station systems transmitting sequential, the first RF switch first RF switch A7, the second RF switch A9, third RF switch A10, the 4th RF switch A12, the 5th RF switch A13, At six RF switch A15 wholes double-throw contacts 1, when the present apparatus, which works in TDD base station systems, receives sequential, the first radio frequency is opened Close A7, the second RF switch A9, third RF switch A10, the 4th RF switch A12, the 5th RF switch A13, the 6th radio frequency Switch A15 is all switched at electric shock 2, specific control by data processing unit according to the work of the standard of base station and TDD when Sequence is controlled；

The reception signal cancellation unit B is by amplifying circuit B1, power splitter B2, time delay circuit B3, bucking circuit B4, the Four coupler B5, the first amplitude modulation/phase modulation circuit B6, first, which receives signal deteching circuit B7, is constituted；The amplifying circuit B1's is defeated The input terminal of outlet B1 connection power splitters B2, the input terminal of the output end connection time delay circuit B3 of power splitter B2, time delay circuit B3 Output end connection bucking circuit B4 first input end, the output end of bucking circuit B4 connects the input of the 4th coupler B5 End, the input terminal of the first amplitude modulation/phase modulation circuit B6 are connected to the output end of Signal Products unit, the first amplitude modulation/phase modulation circuit B6 Output end be connected to the second input terminal of bucking circuit B4, the coupled output of the 4th coupler B5 is connected to the second reception The output end of the input terminal of signal deteching circuit, the second reception signal deteching circuit is connected to data processing unit G's；It is described The reception of first coupler A2 couplings and interference signal are by the first RF switch A7, the first trapper A8, the second RF switch After A9 arrive amplifying circuit B1, by amplifying circuit B1 will receive and interference signal be amplified after input power splitter B2, power splitter The reception and interference signal are divided into two-way by B2, wherein signal reaches bucking circuit B4 by time delay circuit B3 all the way, with by It receives the another way that signal generation unit C is generated and receives signal after the first amplitude modulation/phase modulation circuit B6 carries out amplitude modulation and phase modulation Carry out receiving the counteracting of signal at bucking circuit B4, wherein the reception signal output exported from the 4th coupler A5 coupled ends Signal deteching circuit B7 is received to second, number is output to after being converted into digital signal by the second reception signal deteching circuit B7 According to processing unit G, the first amplitude modulation/phase modulation circuit is adjusted according to the size of the reception signal detected by data processing unit G B7 so that reception signal amplitude is equal in the amplitude for the reception signal being conditioned and the signal of time delay circuit B3 outputs, phase phase Instead, it offsets and receives signal, retain and receive interference signal；

The reception interference signal offset unit F receives interferer signal detection circuit by the second amplitude modulation and phase modulation circuit F1 F2 is constituted；The reservation interference signal, into after the adjustment of line amplitude and phase, is input to by the second amplitude modulation and phase modulation device F1 Four RF switch A12, then by the second trapper A11 or it is connected directly to third RF switch A10, finally opened by third radio frequency The coupled end that pass A10 is output to the second coupler A4 is fed into radio-frequency receiving-transmitting primary path, for offsetting radio-frequency receiving-transmitting primary path In reception interference signal；

The coupling output of the third coupler A5 receives and interference letter passes through the 5th RF switch A13, third trap It after device A14, the 6th RF switch A15, is input to and receives interferer signal detection circuit F2, by reception and interferer signal detection electricity Reception interference signal is converted into digital signal and is output in data processing unit G by road, by data processing unit G according to reception The size of interference signal adjusts the second amplitude modulation/phase modulation circuit F1 so that by third coupler A4 is fed into radio-frequency receiving-transmitting master The reception interference signal amplitude in reception interference signal and radio-frequency receiving-transmitting primary path in access is equal, opposite in phase, until penetrating Reception interference signal in frequency transmitting-receiving primary path reaches preset value；

The preset value of the reception interference signal can change as the intensity for receiving interference signal is different, therefore need The curve of the corresponding preset value of different reception interference signals to be stored in the present apparatus according to experimental results；

Signal generation unit C is received, according to the reception signal for receiving signal frequency detecting circuit D and signal synchronization unit E offers Information generates a reception signal identical with wireless transceiver system but does not include interference signal；

Signal synchronization unit E realizes that base station down receives the reception of signal by antenna E1, then is detected by downlink signal Base station downlink signal is converted into digital signal by circuit E2, and synchronous acquiring unit E3 obtains base station synchronization from base station downlink signal Then synchronizing information is transmitted to and receives signal generation unit C and data processing unit G by information；

Signal frequency discrimination cells D is received to obtain after reception is believed by receiving signal deteching circuit from the another way of power splitter B2 D1 converts the signal into digital signal, then identifies that the frequency for receiving signal and power are believed by receiving signal identification cells D 2 Breath, then these information are exported and give data processing unit G, the carrier wave configuration for receiving signal is calculated by data processing unit G And frequency, and pass to and receive signal generation unit C for generating one and the essentially identical reception signal of primary path；

When the present apparatus is applied outside wireless transceiver equipment, installation will be directly connected to wireless transceiver equipment Antenna opening, between the present apparatus and wireless transceiver equipment antenna can connect including but not limited to radio-frequency cable, tower top puts Big device, anti-interference filter equipment；The present apparatus is applied to multiple wireless transceiver equipment at this point, if being received per road The working frequency range difference needs of transmitter equipment are every to apply one all the way, or is applied to single channel wireless transceiver equipment.

It has the beneficial effect that：

The scheme of the application can receive out-of-band interference signal frequency and changed power according to live base station, adaptive to adjust Whole and finally balance out interference signal, the variation of out-of-band interference signal can not be received with base station by overcoming traditional filter And the advantages that weakness offset in real time, scheme have adaptive ability strong, and cost of implementation is low, and neutralization effect is good.

Description of the drawings

The specific embodiment of the application is described below with reference to accompanying drawings, wherein：

Fig. 1 is shown in the embodiment of the present application one with reception out-of-band interference in adaptive cancellation wireless transceiver system The functional block diagram of device；

Fig. 2 shows receive signal cancellation unit in the embodiment of the present application one to receive signal cancellation schematic block circuit diagram；

Fig. 3 shows reception signal cancellation unit hardware functional block diagram in the embodiment of the present application one；

Fig. 4 shows reception signal frequency detecting circuit functional block diagram in the embodiment of the present application one；

Fig. 5 shows signal synchronization unit functional block diagram in the embodiment of the present application one；

Fig. 6 shows reception interference signal offset unit functional block diagram in the embodiment of the present application one；

Fig. 7 shows reception signal frequency discrimination flow chart in the embodiment of the present application two；

Fig. 8 shows that signal synchronizes flow chart in the embodiment of the present application two；

Fig. 9 shows reception interferer signal detection schematic diagram in the embodiment of the present application two；

Figure 10 shows reception signal cancellation control flow chart in the embodiment of the present application two；

Figure 11 shows reception interferer signal detection schematic diagram in the embodiment of the present application two；

Figure 12 shows that interference signal is received in the embodiment of the present application two offsets mouth control flow chart；

Figure 13 shows that device is in more base station applies scenes in the embodiment of the present application two；

Figure 14 shows that device is in the application scenarios of 4 access RRH in the embodiment of the present application two；

Figure 15 shows that device is in the application scenarios of 2 access RRH in the embodiment of the present application two；

Figure 16 shows the First Principle block diagram that device is applied in base station in the embodiment of the present application two；

Figure 17 shows the second functional block diagrams that device in the embodiment of the present application two is applied in base station.

Specific implementation mode

In order to which the technical solution and advantage that make the application are more clearly understood, below in conjunction with attached drawing to the example of the application Property embodiment is described in more detail, it is clear that and described embodiment is only a part of the embodiment of the application, and The exhaustion of not all embodiment.And in the absence of conflict, the feature in the embodiment and embodiment in this explanation can To be combined with each other.

Embodiment one

Fig. 1 shows a kind of with the device for receiving out-of-band interference in adaptive cancellation wireless transceiver system, described device Including：

Radio-frequency receiving-transmitting access and multichannel coupled switch filter unit A receive signal cancellation unit B, receive signal and generate list First C receives signal frequency detecting circuit D, signal synchronization unit E, receives interference signal offset unit F, data processing unit G；

The radio-frequency receiving-transmitting access and multichannel coupled switch filter unit A are by strip line or coaxial cable A3, the first coupling Device A2, the second coupler A4, third coupler A5, power feed circuit A6, the first RF switch A7, the second RF switch A9, Third RF switch A10, the 4th RF switch A12, the 5th RF switch A13, the 6th RF switch A15, the first trapper A8, the second trapper A11 and third trapper A14 are constituted；

The coupled output of the first coupler A2 connects the input terminal of the first RF switch, the first RF switch First output end connects the input terminal of the first trapper A8, and the output end of the first trapper connects the first of the second RF switch Input port, the second output terminal mouth of the first RF switch A7 and the second input port of the second RF switch are connected, and second penetrates The output end of frequency switch A9 is connected to low noise amplifier circuit；First trapper A8, the second trapper A11 and the third Trapper A14 is for filtering out the first coupler A2, the second coupler A4, third coupler A5 from radio-frequency receiving-transmitting main path couplings One end of the transmitting signal come in, the strip line or coaxial cable A3 are connected with antenna for base station, the other end and power feed Circuit A6 is connected, and power feed circuit A6 is connected with the antenna opening of wireless transceiver equipment, and strip line or coaxial cable A3 are logical The existing powerful transmitting signal crossed, and have low power reception signal；

When the present apparatus works in FDD base station systems or TDD base station systems transmitting sequential, the first RF switch first RF switch A7, the second RF switch A9, third RF switch A10, the 4th RF switch A12, the 5th RF switch A13, At six RF switch A15 wholes double-throw contacts 1, when the present apparatus, which works in TDD base station systems, receives sequential, the first radio frequency is opened Close A7, the second RF switch A9, third RF switch A10, the 4th RF switch A12, the 5th RF switch A13, the 6th radio frequency Switch A15 is all switched at electric shock 2, specific control by data processing unit according to the work of the standard of base station and TDD when Sequence is controlled；

The reception signal cancellation unit B is by amplifying circuit B1, power splitter B2, time delay circuit B3, bucking circuit B4, the Four coupler B5, the first amplitude modulation/phase modulation circuit B6, first, which receives signal deteching circuit B7, is constituted；The amplifying circuit B1's is defeated The input terminal of outlet B1 connection power splitters B2, the input terminal of the output end connection time delay circuit B3 of power splitter B2, time delay circuit B3 Output end connection bucking circuit B4 first input end, the output end of bucking circuit B4 connects the input of the 4th coupler B5 End, the input terminal of the first amplitude modulation/phase modulation circuit B6 are connected to the output end of Signal Products unit, the first amplitude modulation/phase modulation circuit B6 Output end be connected to the second input terminal of bucking circuit B4, the coupled output of the 4th coupler B5 is connected to the second reception The output end of the input terminal of signal deteching circuit, the second reception signal deteching circuit is connected to data processing unit G's；It is described The reception of first coupler A2 couplings and interference signal are by the first RF switch A7, the first trapper A8, the second RF switch After A9 arrive amplifying circuit B1, by amplifying circuit B1 will receive and interference signal be amplified after input power splitter B2, power splitter The reception and interference signal are divided into two-way by B2, wherein signal reaches bucking circuit B4 by time delay circuit B3 all the way, with by It receives the another way that signal generation unit C is generated and receives signal after the first amplitude modulation/phase modulation circuit B6 carries out amplitude modulation and phase modulation Carry out receiving the counteracting of signal at bucking circuit B4, wherein the reception signal output exported from the 4th coupler A5 coupled ends Signal deteching circuit B7 is received to second, number is output to after being converted into digital signal by the second reception signal deteching circuit B7 According to processing unit G, the first amplitude modulation/phase modulation circuit is adjusted according to the size of the reception signal detected by data processing unit G B7 so that reception signal amplitude is equal in the amplitude for the reception signal being conditioned and the signal of time delay circuit B3 outputs, phase phase Instead, it offsets and receives signal, retain and receive interference signal；

The reception interference signal offset unit F receives interferer signal detection circuit by the second amplitude modulation and phase modulation circuit F1 F2 is constituted；The reservation interference signal, into after the adjustment of line amplitude and phase, is input to by the second amplitude modulation and phase modulation device F1 Four RF switch A12, then by the second trapper A11 or it is connected directly to third RF switch A10, finally opened by third radio frequency The coupled end that pass A10 is output to the second coupler A4 is fed into radio-frequency receiving-transmitting primary path, for offsetting radio-frequency receiving-transmitting primary path In reception interference signal；

The coupling output of the third coupler A5 receives and interference letter passes through the 5th RF switch A13, third trap It after device A14, the 6th RF switch A15, is input to and receives interferer signal detection circuit F2, by reception and interferer signal detection electricity Reception interference signal is converted into digital signal and is output in data processing unit G by road, by data processing unit G according to reception The size of interference signal adjusts the second amplitude modulation/phase modulation circuit F1 so that by third coupler A4 is fed into radio-frequency receiving-transmitting master The reception interference signal amplitude in reception interference signal and radio-frequency receiving-transmitting primary path in access is equal, opposite in phase, until penetrating Reception interference signal in frequency transmitting-receiving primary path reaches preset value；

The preset value of the reception interference signal can change as the intensity for receiving interference signal is different, therefore need The curve of the corresponding preset value of different reception interference signals to be stored in the present apparatus according to experimental results；

Signal generation unit C is received, according to the reception signal for receiving signal frequency detecting circuit D and signal synchronization unit E offers Information generates a reception signal identical with wireless transceiver system but does not include interference signal；

Signal synchronization unit E realizes that base station down receives the reception of signal by antenna E1, then is detected by downlink signal Base station downlink signal is converted into digital signal by circuit E2, and synchronous acquiring unit E3 obtains base station synchronization from base station downlink signal Then synchronizing information is transmitted to and receives signal generation unit C and data processing unit G by information；

Signal frequency discrimination cells D is received to obtain after reception is believed by receiving signal deteching circuit from the another way of power splitter B2 D1 converts the signal into digital signal, then identifies that the frequency for receiving signal and power are believed by receiving signal identification cells D 2 Breath, then these information are exported and give data processing unit G, the carrier wave configuration for receiving signal is calculated by data processing unit G And frequency, and pass to and receive signal generation unit C for generating one and the essentially identical reception signal of primary path；

When the present apparatus is applied outside wireless transceiver equipment, installation will be directly connected to wireless transceiver equipment Antenna opening, between the present apparatus and wireless transceiver equipment antenna can connect including but not limited to radio-frequency cable, tower top puts Big device, anti-interference filter equipment；The present apparatus is applied to multiple wireless transceiver equipment at this point, if being received per road The working frequency range difference needs of transmitter equipment are every to apply one all the way, or is applied to single channel wireless transceiver equipment.

When the present apparatus is applied in wireless transceiver equipment simultaneously, the multiple-path coupler of 3 tunnel of band coupling becomes 3 Independent coupler, the first RF switch A7, the second RF switch A9, third RF switch A10, the 4th RF switch A12, 5th RF switch A13, the 6th RF switch A15, the first trapper A8, the second trapper A11, third trapper A14 can be with Save should not, first receive signal deteching circuit, transmitting signal deteching circuit can save should not, in addition when data processing list After first G is eliminated, a part of software code can be integrated in radio receiving-transmitting unit inner treater and run.

For receiving signal cancellation unit B, it is as shown in Figure 2 to receive signal cancellation schematic block circuit diagram.

Specifically, it includes amplifying circuit B1, power splitter B2, time delay circuit B3, bucking circuit to receive signal cancellation unit B B4, the 4th coupler B5 and the first amplitude modulation/phase modulation circuit B6, second receives signal deteching circuit B7；

The first coupler A2 emits and is received from radio-frequency receiving-transmitting main path couplings signal and comes in, and then passes through the One RF switch A7, the first trapper A8, the second RF switch A9, the reception exported from the second RF switch A9 and interference letter It number is input to amplifying circuit B1, then will be received through amplifying circuit B1 and interference signal is suitably amplified, power splitter B2 will be received And interference signal is divided into two tunnels, wherein signal reaches bucking circuit B4 by time delay circuit B3 all the way, is generated with by reception signal The another way that unit C is generated receives signal after the first amplitude modulation/phase modulation circuit B6 carries out amplitude modulation and phase modulation in bucking circuit B4 Place receive the counteracting of signal, wherein the reception signal exported by the 4th coupler A5 coupled ends is input to the second reception letter Number detection circuit is output to data processing unit after converting the signal into digital signal by the second reception signal deteching circuit G, data processing unit obtains received signal power by operation, and adjusts the first amplitude modulation/tune according to the size for receiving signal Circuitry phase B6 make the reception signal being conditioned and be delayed by B3 after signal in reception signal amplitude it is equal, phase phase Instead, it offsets and receives signal, retain and receive interference signal；

Wherein amplifying circuit B1 is low noise amplifier circuit, and gain is the amplification of 50-80dB；First amplitude modulation/phase modulation circuit The amplitude modulation precision of B6 meets 0.1-0.5dB, 1 ° -10 ° of phase modulation precision satisfaction, the delay of time delay circuit B4 and another route signal The time that generation circuit generates signal is identical.

For receiving signal frequency detecting circuit D, operation principle is shown in Figure 4.

Specifically, it includes the first reception signal deteching circuit D1 and reception signal identification unit to receive signal frequency detecting circuit D D2；

First reception signal deteching circuit D1 realizes that will receive radiofrequency signal is converted into digital signal, receives signal identification Cells D 2, which docks to collect mail in known receptions signal frequency range by designing digital fabrication filter, number is gradually swept Frequently, frequency sweep stepping is equal to the bandwidth of formed filter, and the bandwidth of formed filter is arranged according to the band limits for receiving signal, Often scanning frequency point is to counting the integrated power in filter band by power statistic algorithm, and records frequency point and right The power level for answering frequency point transmits this information to and receives signal generation unit C, the sampling rate of the above analog to digital conversion circuit It is required that being the 2 times or more for receiving signal bandwidth.

For signal synchronization unit E, operation principle is as shown in Figure 5.

Specifically, signal synchronization unit E includes reception antenna E1, emit signal detection power supply E2 and synchronous signal obtaining Unit E3；

Reception antenna E1 receives base station downlink signal, and transmitting detecting signal unit E2 is realized will transmitting radiofrequency signal conversion At digital signal, synchronous signal obtaining unit E3 realizes the synchronization of signal, E3 under baseband rate from primary pilot channel respectively and Primary pilot signal and auxiliary pilot signal are obtained in auxiliary pilot signal, and the downlink synchronous signal of base station is obtained by operation, under The row transmitting information such as signal, derive the frequency range of base station received signal according to downlink signal, and by E3 by the information of acquisition It is transferred to and what frequency-discriminating circuit D of signal generation unit C is received.

For receiving signal generation unit C, operation principle is shown in Figure 3.

Specifically, it includes receiving signal baseband processor unit C1 and receiving signal intermediate frequency to turn to receive signal generation unit C Radio circuit C2；

The process that signal generates is to obtain base station down synchronizing information according to signal synchronization unit E3, and signal kinds receive Signal identification cells D 2 obtains the frequency and power for receiving signal, is input to data processing unit G and carries out data analysis and process Frequency, level, carrier number, carrier bandwidths and the signaling mode for receiving signal are obtained, then by reception signal baseband processor unit One and the essentially identical signal of base station received signal are generated in C1；Reception signal intermediate frequency turns radio circuit C2 and C is received signal The signal that baseband processing unit C1 is generated is converted into radiofrequency signal and is output to the first amplitude modulation/phase modulation circuit B6.

Specifically, for radio frequency path and multiple-path coupler A comprising microstrip line or coaxial cable A3, the first coupler A2, the second coupler A4, third coupler A5, power feed circuit A6, the first RF switch A7, the second RF switch A9, Three RF switch A10, the 4th RF switch A12, the 5th RF switch A13, the 6th RF switch A15, the first trapper A8, Second trapper A11 and third trapper A14；

Wherein radio frequency connector A1, the first coupler A2, strip line or coaxial cable A3, the second coupler A4, third coupling Clutch A5, power feed circuit A6 bandwidth of a device is required to simultaneously by emitting signal and receiving signal, and each component Insertion Loss be less than 0.1dB, the passive intermodulation index of each device is not docked the collection of letters number and is had an impact, each component Power capacity should be greater than the additional certain drop volume of maximum transmission power of base station；First coupler A2, the second coupler A4, the Isolation between three coupler A5 need to interfere with each other between circuit, should be greater than per the directionality of class coupler 20dB or more, and there is isolation between other components of described device；

The adaptive cancellation device works in FDD wireless transceiver systems or the transmitting of TDD wireless transceiver systems When sequential, the first RF switch A7, the second RF switch A9, third RF switch A10, the 4th RF switch A12, the 5th penetrate At frequency switch A13, the 6th RF switch A15 wholes double-throw contact 1, make the first trapper A8, the second trapper A11 and third Trapper A14 is respectively at on-state, and the first coupler A2 is coupled into the transmitting signal come by the first trap at this time Device A8 is filtered out, and the second coupler A4 is coupled into the transmitting signal come and is filtered out by the second trapper A11, the third coupling Device A5 is coupled into the transmitting signal come and is filtered out by third trapper A14；

When the adaptive cancellation device works in TDD wireless transceiver systems reception sequential, the first RF switch A7, the second RF switch A9, third RF switch A10, the 4th RF switch A12, the 5th RF switch A13, the 6th radio frequency are opened It closes A15 to be all switched at contact 2, the first trapper A8, the second trapper A11 and third trapper A14 are other respectively Road, the reception of the first coupler A2 couplings and interference signal directly input amplifying circuit B1；First amplitude modulation/phase modulation Device F1 output signals are directly output to the coupled end of the second coupler A4；The third coupler A5 coupling ports output connects It receives and interference signal is directly inputted to reception and interferer signal detection circuit F2.

For receiving interference signal offset unit F, operation principle is as shown in Figure 6.

Specifically, receiving interference signal offset unit F by the second amplitude modulation/phase modulation circuit F1 and receiving interferer signal detection Circuit F2 is constituted；

The reservation interference signal of the described 4th coupler B5 outputs is output to the by the second amplitude modulation/phase modulation circuit F1 Four RF switch A12, then it is output to third RF switch A10 by the second trapper or by straight-through, it is opened by third radio frequency The coupled end that A10 is output to the second coupler A4 is closed, primary path A3 is fed into；

The coupler A5 is coupled into the reception come and interference signal passes through the 5th RF switch A13, third trapper device It is input to after A14, the 6th RF switch A15 and receives interferer signal detection circuit F2, receiving interferer signal detection circuit F2 will connect It receives and out-of-band interference signal is converted into digital signal, be output to data processing unit G, data processing unit G is interfered according to reception The size of signal adjusts the second amplitude modulation/phase modulation circuit F1 so that connecing in the interference signal and radio-frequency receiving-transmitting primary path of reservation Receive interference signal amplitude it is equal, opposite in phase, until the receptions interference signal in radio-frequency receiving-transmitting primary path amplitude be less than pair Answer the linear preset standard value of the reception of standard.

In the reception interferer signal detection circuit F2, the sampled signal bandwidth requirement of A/D converter is to receive letter 3 times or more of number bandwidth.

In the embodiment of the present application, data processing unit is by including but not limited to central processing unit, programmable logic processing Device, peripheral storage unit, communication interface are constituted；

The Data Data processing unit G realizes that the collection of data, acquisition, processing and the external control of data are defeated Go out；It is connected by communication interface between the data processing unit G and reception signal frequency discrimination cells D, by reception signal frequency discrimination The information such as the frequency, carrier bandwidths, carrier number that receive signal are transferred to data processing unit G, data processing unit G by cells D It is connected by communication interface between signal synchronization unit E, frame synchronization information is passed into data processing by signal synchronization unit Unit G；Data processing unit G is by between frequency, carrier bandwidths, carrier number, and synchronizing information etc. is after operation and processing by this A little information pass to signal generation unit C by interface；The control voltage of data processing unit output simultaneously controls the first tune respectively Width/phase modulation circuit B6 and the second amplitude modulation/phase modulation circuit F1 realizes the adjustment of amplitude and phase respectively；Data processing unit G and Reception signal is sampled by data-interface between second reception signal deteching circuit B7, data processing unit G and reception are interfered Reception interference signal is sampled by data-interface between signal deteching circuit F2；The data processing unit is according to synchronization The TDD synchronizing informations that signal acquiring unit E is obtained control the first RF switch A7, the second RF switch A9, and third radio frequency opens Close A10, the second RF switch A12, the first RF switch A13, the second RF switch A15；It will be with dry by external communication interface The reception interference signal preset value curve disturbed signal power and changed is stored in data processing unit.

In practical application, the adaptive cancellation device of interference is received outside wireless transceiver system band provided by the present application, The present apparatus is applied in wireless transceiver equipment, and variation is integration No. three coupler A3 described in claim 5 by 3 A independent coupler substitutes, and position of 3 independent couplers in wireless transceiver equipment can there are many combinations；Institute The the first RF switch A7 stated, the second RF switch A9, third RF switch A10, the 4th RF switch A12, the 5th radio frequency are opened The trapper of A13, the 6th RF switch A15, first A8 is closed, the second trapper A11, third trapper A14 can be saved should not； The reception signal cancellation unit is identical as signal cancellation unit B is received；The interference signal offset unit is interfered with reception Signal cancellation unit F is identical；It is to connect when having in wireless transceiver equipment and receiving signal frequency discrimination Elementary Function same circuits Collection of letters frequency discrimination cells D is saved；Transmitting signal receiving antenna E1 in signal synchronization unit and Base Transmitter signal deteching circuit E2 can be saved；The signal generation unit is identical as signal generation unit C；Have in the wireless transceiver equipment Data processing unit and when its performance is met the requirements, data processing unit G can be saved should not；Signal synchronizes, and signal generates, Signal cancellation is received, the realization software code that interference signal is offset is desirably integrated into the software in wireless transceiver equipment It goes.

Scheme provided by the present application can receive out-of-band interference signal frequency and changed power according to live base station, adaptive It should adjust and finally balance out interference signal, out-of-band interference signal can not be received with base station by overcoming traditional filter The advantages that weakness for changing and offsetting in real time, scheme have adaptive ability strong, and cost of implementation is low, and neutralization effect is good.

Embodiment two

The embodiment of the present application provides a kind of with the side for receiving out-of-band interference in adaptive cancellation wireless transceiver system Method, wherein the method obtains the carrier wave configuration for receiving signal, frequency, power information according to signal frequency discrimination is received, according to letter Number synchronization unit obtains the synchronizing signal of base station, then generates one by reception signal generation unit and received with radio receiving-transmitting unit Access receives the identical signal of signal, and following below scheme and method include receiving signal frequency discrimination flow, and signal synchronizes flow, receives Signal generates flow, as Figure 7-9；

First to from the reception signal of radio-frequency receiving-transmitting main path couplings carry out frequency discrimination, obtain receive signal carrier wave configuration, Frequency, power information, specifically include：

Step SD01：The bandwidth W1 for receiving signal is obtained from data processing unit G, is received signal low frequency and is originated frequency point F1, End the information of frequency point F2；

Step SD02：The docking collection of letters number carries out this sampling of N；

Step SD03：The center frequency point that formed filter is arranged is F1, bandwidth W1；

Step SD04：The center frequency point of formed filter increases by a step by stepping W2；

Step SD05：Count the integrated power in formed filter band；

Step SD06：The frequency information of statistics and power information are passed to data processing unit G to store；

Step SD07：Judge whether the frequency point of formed filter is equal to and be more than F2, is thened follow the steps if it is greater than F2 SD08 thens follow the steps SD04 if it is less than equal to F2；

Step SD08：The frequency of acquisition and power information are formed to the table storage for receiving signal by data processing unit Get up；

The process for obtaining synchronizing signal is realized by synchronous signal obtaining unit E3 and data processing unit G again, it is specific to wrap It includes：

Step SE1：N times sampling first is carried out to base station downlink signal；

Step SE2：The base station downlink signal of sampling is converted to baseband rate by Digital Down Convert；

Step SE31：Signal after down coversion divides two-way, wherein signal first takes a message the roadbed for just synchronizing all the way Number data rate be downsampled to 1.92MHZ；

Step SE32/SE36：PSCH channels are obtained from the data that sampling rate is 1.92MHz, and are selected from PSCH channels 128 points of data are taken, then the data of this 128 points are done with the related operation of time domain, main sync bit PSS are obtained, by right The operation of primary synchronization signal PSS obtains u values (Nid2)；

Step SE33：The positions assist in synchronization SSS are derived by calculating, and therefrom choose according to the main synchronous positions PSS 128 points of time domain SSS signals；

Step SE34：FFT operations are done to the SSS signals of 128 points of acquisition, obtain 12 positions frequency domain SSS；

Step SE35/37/38/39：By doing frequency domain correlation to auxiliary synchronous signal SSS data, obtain respectively Nid1 values, the front and back field indication signal of auxiliary synchronous signal SSS, the synchronization frame start position of auxiliary synchronous signal SSS；

Step SE3A：According to the acquisition of step SE38/SE39 as a result, obtaining under auxiliary synchronous signal 30.72MHz The rough frame header position of row；

Step SE3B：PCI is obtained by doing correlation computations to NID2 and NID1；

Step SE41：The data that baseband rate is 30.72MHz are sampled；

Step SE42：The point on the basis of downlink rough frame header position, in its left and right settings sliding window, sliding window value It is 2048；

Step SE43：Sliding window horizontally slips slides 2048 point PSS time-domain signals respectively；

Step SE44：Prepare descending frame head position by horizontally slipping to obtain；

Finally one is generated according to the frequency discrimination information and synchronizing information of acquisition and receive the identical signal of signal, wherein described Reception signal process identical with the main receiving path reception signal of radio receiving-transmitting unit is generated, is specifically included：

Step SC01：By data processing unit G base station down working frequency information, base station are obtained from signal synchronization unit Signaling mode information；

Step SC02：Data processing unit G obtains base station and receives work according to downstream frequency information, base station frequency band distribution table Make band information reception bandwidth W1, originate low frequency frequency point F1, high frequency, which terminates frequency point F2 and passes to, receives signal identification unit D2；

Step SC03：Signal identification cells D 2 is received, according to the reception signal frequency information that G is provided, passes through sampling and work( Rate statistics obtains the power information of each frequency point；

Step SC04：Data processing unit G, according to the frequency for the reception signal for receiving the identification of signal identification unit, each The corresponding power information of frequency point, which is formed, receives signal frequency power statistic table；

Step SC05：The standard and carrier information that signal baseband processing unit is provided according to data processing unit are received, is opened Begin to generate the new information for receiving signal of a correspondence；

Step SC06：Newly generated reception signal message is subjected to channel coding, intertexture, rate according to corresponding standard Matching treatment；

Step SC07：According to newly generated reception signal message scrambler processing is carried out according to corresponding standard；

Step SC08：It is modulated processing according to corresponding standard according to newly generated reception signal message,

Specific modulation system with signal standard correlation such as 16QAM, 64QAM, QPSK, etc.；

Step SC09：According to newly generated reception signal message layer mapping processing is carried out according to corresponding standard；

Step SC10：According to newly generated reception signal message precoding processing is carried out according to corresponding standard；

Step SC11：Reception signal baseband signal after treatment is subjected to Digital Up Convert to digital intermediate frequency；

Step SC12：According to newly generated reception signal message IFFT calculation processings；

Step SC13：Front-end processing is recycled according to newly generated reception signal message；

Step SC14：Reception signal baseband signal after treatment is subjected to Digital Up Convert to digital intermediate frequency, is repeated It executes step SC01 and then restarts primary new signal generation process.

Scheme provided by the present application, in order to come out with reception signal from main path couplings and receive the mixed of interference signal It closes the reception main signal in signal and offsets acquisition interference signal, signal deteching circuit is received according to second by data processing unit G The whole first amplitude modulation and phase modulation device B6 of receiving signal detected is less than preset value until receiving signal, and following below scheme includes receiving Signal cancellation flow receives interference signal and offsets flow, and as shown in Figure 10, detailed process is as follows：

Step SF1：The frequency for receiving signal is set, and bandwidth information receives the preset value of signal, amplitude modulation/phase modulation circuit tune Number mark Tnum=0 is saved, amplitude modulation/phase modulation circuit maximum adjustment number is L；

Step SF2：The docking collection of letters number carries out a n times sampling；

Step SF3：The bandwidth of data processing unit G setting formed filters is W, and frequency point is the center frequency for receiving signal Point F1；

Step SF4：Count general power in formed filter band；

Step SF5：Give the power transmission of the reception signal of statistics to data processing unit G；

Step SF6：Data processing unit G judges to receive whether power in signal band is less than predetermined threshold value, if be less than Predetermined threshold value then jumps to step SF1, otherwise jumps to step SF9；

Step SF7：By data processing unit G control adjustment the first amplitude modulation/phase modulation circuit B6, the first amplitude modulation/phase modulation circuit Adjust number Tnum+1；

Step SF8：Judge Tnum>Whether N is true, is, jumps to step SF9, otherwise jumps to step SF2 afterwards；

Step SF9：Terminate this adjustment.

After the step SF1-SF9 obtains reception interference signal, the second amplitude modulation and phase modulation device is controlled by data processing unit G F1 makes come the amplitude and phase for adjusting interference signal in the amplitude and phase and transmitting-receiving primary path of the interference signal being adjusted The amplitude of interference signal is equal, opposite in phase, to offset the interference signal in radio-frequency receiving-transmitting primary path, data processing unit G Judge offset whether reach effect by the size of the interference signal of interferer signal detection circuit F2 detections, works as interference signal The second amplitude modulation/phase modulation circuit F1 is just adjusted when higher than preset value, until interference signal meets the preset value of linear requirements, is such as schemed 11, it shown in Figure 12, specifically includes：

The detection of step SG1 setting interference signal originates frequency point f1, f3, cut-off frequency point f2, f4, bandwidth W information, setting Second amplitude modulation/phase modulation circuit adjustment mark Dnum=0, it is M that the second amplitude modulation/phase modulation circuit, which adjusts maximum times, receives interference letter Interference signal preset value curve is received in number preset value table；

Step SG2 carries out reception and out-of-band interference signal the center frequency point that forming filter is arranged in n times sampling second step For f1；

The center frequency point of step SG3 setting formed filters is f1, and the bandwidth of formed filter is filtered for Wa third one-step formings The IF spot of wave device increases a stepping；

Step SG4 formed filter bandwidth is constant, and center frequency point presses stepping and increases the statistics molding filter of the 4th step of a step upwards Power in wave device band；

Integrated power in step SG5 statistics formed filter bands in band limits；

The power and frequency information of step SG6 data processing units G record statistics；

Whether the center frequency point of step SG7 formed filters is more than f2, and step SG7 is then jumped to if it is greater than f2, if Step SG3 is then jumped to less than f2；

The center frequency point of step SG8 setting formed filters is F2, bandwidth Wa；

The center frequency point of step SG9 formed filters increases by a step by stepping；

Integrated power in step SG10 statistics formed filter bands in band limits；

The power and frequency information that step SG11 is counted by data processing unit G records；

Whether the center frequency point of step SG12 formed filters is more than G, and SG12 is then jumped to if it is greater than G, if it is less than G then jumps to SG8；

Step SG13 selects integral bandwidth Wj by data processing unit according to current demand signal standard；

Step SG14 is to count bandwidth to integrate bandwidth Wj, between statistics f1-f2 and f3-f4 in arbitrary continuation Wj bandwidth Power, and maximizing；

Whether step SG15 receives the maximum value of out-of-band interference signal power statistics less than reception interference signal preset value door Otherwise limit jumps to step SG16 if less than step SG18 is jumped to if threshold value；

Step SG16 adjusts mark by data processing unit G second adjustments amplitude modulation/phase converter F2, the second amplitude modulation/phase modulation circuit Will Dnum+1；

The second amplitude modulation of step SG17/phase converter the regulation of electrical circuit number Dnum>M is no, is, jumps to step SG18, otherwise Step SG2 is jumped to go；

Step SG18 terminates this adjustment.

The application scenarios of the present apparatus are proposed with reference to Figure 13-17.

Device can be applied to the various application scenarios outside base station, including but not limited to following application scenarios, as Figure 13 is The present apparatus is applied to the scene of multichannel base station combining, the working frequency points phase of the multichannel transmitting and receiving channel of base station in the scene Together, and by combiner by power multichannel it receives and dispatches access cooperation all the way, the reception input port peace of reasonable device can be only used at this time A present apparatus is filled, Figure 14 is the application scenarios that the present apparatus is applied to 4 access transceivers, in the antenna of each transceiver Mouth one present apparatus of installation, the working frequency of multiple radio-frequency receiving-transmitting accesses can be the same or different, and Figure 15 answers for the present apparatus For the application scenarios of 2 access transceivers, in the application scenarios, the working frequency of two receiving channels of RRH can phase It is same to can also be different.

In addition, the present apparatus applies also in base station equipment, when in applied to base station equipment, the reception in the present apparatus The logical code of signal identification unit, the signal process part in synchronous signal obtaining unit and signal generation unit can It is integrated in an engineering with the code in the Digital IF processing unit with inside of base station and is compiled together, and operated in same In a logic processing device, circuit volume can be both reduced in this way while can be cost-effective；At data in main control unit Reason and control software code and base station radio-frequency front-end control processing software code integrate in an engineering, operate in same In one processor.

When the present apparatus is in applied to base station equipment, radio-frequency receiving-transmitting access and the reasonable device of multichannel in the present apparatus have more Kind combination and application mode, including but not limited to following several, signal acquisition coupler A2 is placed on reception low noise by the first After amplifying circuit, will offset and neutralization effect detection coupler A4 and A5 are placed on before radio frequency turns intermediate-frequency circuit, this structure it is excellent Point is can all to eliminate the interference of the introducing of entire radio-frequency front-end, and functional block diagram is as shown in figure 16, and second of application is Between being connected on receiving filter by the present apparatus and receive low-noise amplifier, functional block diagram is as shown in figure 17, believes at this time Number extraction and signal counteracting all between receiving filter and low noise, deficiency existing for such application is to increase base The noise coefficient stood, benefit are can be filtered out receiving interference signal once coming in.

Scheme provided by the present application can receive out-of-band interference signal frequency and changed power according to live base station, adaptive It should adjust and finally balance out interference signal, out-of-band interference signal can not be received with base station by overcoming traditional filter The advantages that weakness for changing and offsetting in real time, scheme have adaptive ability strong, and cost of implementation is low, and neutralization effect is good.

For convenience of description, each section of apparatus above is divided into various modules with function or unit describes respectively.When So, each module or the function of unit can be realized in same or multiple softwares or hardware when implementing the application.

It should be understood by those skilled in the art that, embodiments herein can be provided as method, system or estimation machine journey Sequence product.Therefore, complete hardware embodiment, complete software embodiment or combining software and hardware aspects can be used in the application The form of embodiment.Moreover, the application can be used in one or more wherein include estimation machine usable program code estimation The estimation machine program implemented in machine usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) The form of product.

Although the preferred embodiment of the application has been described, once a person skilled in the art knows basic wounds The property made concept, then additional changes and modifications may be made to these embodiments.It is wrapped so the following claims are intended to be interpreted as It includes preferred embodiment and falls into all change and modification of the application range.

Claims (11)

1. a kind of device with reception out-of-band interference in adaptive cancellation wireless transceiver system, including：Radio-frequency receiving-transmitting is logical Road and multichannel coupled switch filter unit A receive signal cancellation unit B, receive signal generation unit C, receive signal frequency discrimination electricity Road D, signal synchronization unit E receive interference signal offset unit F, data processing unit G；

The radio-frequency receiving-transmitting access and multichannel coupled switch filter unit A by strip line or coaxial cable A3, the first coupler A2, Second coupler A4, third coupler A5, power feed circuit A6, the first RF switch A7, the second RF switch A9, third are penetrated Frequency switch A10, the 4th RF switch A12, the 5th RF switch A13, the 6th RF switch A15, the first trapper A8, second fall into Wave device A11 and third trapper A14 are constituted；

The coupled output of the first coupler A2 connects the input terminal of the first RF switch, and the first of the first RF switch is defeated Outlet connects the input terminal of the first trapper A8, and the output end of the first trapper connects the first input end of the second RF switch Mouthful, the second output terminal mouth of the first RF switch A7 and the second input port of the second RF switch are connected, the second RF switch The output end of A9 is connected to low noise amplifier circuit；First trapper A8, the second trapper A11 and the third trapper A14 is for filtering out the first coupler A2, the second coupler A4, the hair that third coupler A5 comes in from radio-frequency receiving-transmitting main path couplings Penetrate signal, one end of the strip line or coaxial cable A3 are connected with antenna for base station, the other end and power feed circuit A6 phases Even, power feed circuit A6 is connected with the antenna opening of wireless transceiver equipment, strip line or coaxial cable A3 by it is existing Powerful transmitting signal, and have low power reception signal；

When the present apparatus works in FDD base station systems or TDD base station systems transmitting sequential, first the first radio frequency of RF switch is opened Close A7, the second RF switch A9, third RF switch A10, the 4th RF switch A12, the 5th RF switch A13, the 6th radio frequency At switch A15 wholes double-throw contact 1, when the present apparatus, which works in TDD base station systems, receives sequential, the first RF switch A7, the Two RF switch A9, third RF switch A10, the 4th RF switch A12, the 5th RF switch A13, the 6th RF switch A15 It is all switched at electric shock 2, specific control is carried out by data processing unit according to the work schedule of the standard of base station and TDD Control；

The reception signal cancellation unit B is by amplifying circuit B1, power splitter B2, time delay circuit B3, bucking circuit B4, the 4th coupling Device B5, the first amplitude modulation/phase modulation circuit B6, first, which receives signal deteching circuit B7, is constituted；The output end of the amplifying circuit B1 connects Connect the input terminal of power splitter B2, the input terminal of the output end connection time delay circuit B3 of power splitter B2, the output end of time delay circuit B3 The first input end of bucking circuit B4 is connected, the output end of bucking circuit B4 connects the input terminal of the 4th coupler B5, and first adjusts The input terminal of width/phase modulation circuit B6 is connected to the output end of Signal Products unit, and the output end of the first amplitude modulation/phase modulation circuit B6 connects It is connected to the second input terminal of bucking circuit B4, the coupled output of the 4th coupler B5 is connected to the second reception signal deteching circuit Input terminal, second reception signal deteching circuit output end be connected to data processing unit G's；The first coupler A2 couplings The reception of conjunction and interference signal arrive amplifying circuit after the first RF switch A7, the first trapper A8, the second RF switch A9 B1, by amplifying circuit B1 will receive and interference signal be amplified after input power splitter B2, power splitter B2 by it is described reception and Interference signal is divided into two-way, wherein signal reaches bucking circuit B4 by time delay circuit B3 all the way, it is single with being generated by reception signal The another way reception signal that first C is generated is after the first amplitude modulation/phase modulation circuit B6 carries out amplitude modulation and phase modulation at bucking circuit B4 Receive the counteracting of signal, wherein the reception signal exported from the 4th coupler A5 coupled ends is output to the inspection of the second reception signal Slowdown monitoring circuit B7 is converted into being output to data processing unit G after digital signal, by data by the second reception signal deteching circuit B7 Processing unit G adjusts the first amplitude modulation/phase modulation circuit B6 according to the size of the reception signal detected so that the reception being conditioned It is equal that signal amplitude is received in the amplitude of signal and the signal of time delay circuit B3 outputs, opposite in phase, counteracting reception signal, reservation Receive interference signal；

The reception interference signal offset unit F receives interferer signal detection circuit F2 structures by the second amplitude modulation and phase modulation circuit F1 At；The reservation interference signal, into after the adjustment of line amplitude and phase, is input to the 4th and penetrates by the second amplitude modulation and phase modulation device F1 Frequency switch A12, then by the second trapper A11 or it is connected directly to third RF switch A10, finally by third RF switch A10 The coupled end for being output to the second coupler A4 is fed into radio-frequency receiving-transmitting primary path, for offsetting connecing in radio-frequency receiving-transmitting primary path Receive interference signal；

The coupling output of the third coupler A5 receives and interference letter passes through the 5th RF switch A13, third trapper After A14, the 6th RF switch A15, it is input to and receives interferer signal detection circuit F2, it will by reception and interferer signal detection circuit Reception interference signal is converted into digital signal and is output in data processing unit G, is believed according to interference is received by data processing unit G Number size adjust the second amplitude modulation/phase modulation circuit F1 so that be fed into radio-frequency receiving-transmitting primary path by third coupler A4 Reception interference signal and radio-frequency receiving-transmitting primary path in reception interference signal amplitude it is equal, opposite in phase, until radio-frequency receiving-transmitting Reception interference signal in primary path reaches preset value；

The preset value of the reception interference signal can change as the intensity for receiving interference signal is different, therefore need basis The curve of the corresponding preset value of different reception interference signals is stored in the present apparatus by experimental results；

Signal generation unit C is received, according to the reception signal message for receiving signal frequency detecting circuit D and signal synchronization unit E offers It generates a reception signal identical with wireless transceiver system but does not include interference signal；

Signal synchronization unit E realizes that base station down receives the reception of signal by antenna E1, then passes through downlink signal detection circuit Base station downlink signal is converted into digital signal by E2, and synchronous acquiring unit E3 obtains base station synchronization information from base station downlink signal, Then synchronizing information is transmitted to and receives signal generation unit C and data processing unit G；

Receiving signal frequency discrimination cells D and being obtained from the another way of power splitter B2 will be believed after reception is believed by receiving signal deteching circuit D1 It number is converted into digital signal, then is identified by receiving signal identification cells D 2 and receive the frequency and power information of signal, then will These information, which export, gives data processing unit G, and the carrier wave configuration for receiving signal and frequency are calculated by data processing unit G, And it passes to and receives signal generation unit C for generating one and the essentially identical reception signal of primary path；

When the present apparatus is applied outside wireless transceiver equipment, installation will be directly connected to the antenna of wireless transceiver equipment Mouthful, can be connected between the present apparatus and wireless transceiver equipment antenna including but not limited to radio-frequency cable, tower amplifier, Anti-interference filter equipment；The present apparatus is applied to multiple wireless transceiver equipment at this point, if per road transceiver The working frequency range difference needs of equipment are every to apply one all the way, or is applied to single channel wireless transceiver equipment；

The present apparatus is when applying in wireless transceiver equipment simultaneously, the multiple-path coupler of 3 tunnel of band coupling become 3 it is independent Coupler, the first RF switch A7, the second RF switch A9, third RF switch A10, the 4th RF switch A12, the 5th radio frequency The switch trapper of A13, the 6th RF switch A15, first A8, the second trapper A11, third trapper A14 can save should not, First receive signal deteching circuit, transmitting signal deteching circuit can save should not, in addition when data processing unit G is eliminated Afterwards, a part of software code can be integrated in radio receiving-transmitting unit inner treater and run.

2. according to claim 1 with the device for receiving out-of-band interference in adaptive cancellation wireless transceiver system, wherein It includes the first reception signal deteching circuit D1 and reception signal identification cells D 2 to receive signal frequency detecting circuit D；

First reception signal deteching circuit D1 realizes that will receive radiofrequency signal is converted into digital signal, receives signal identification cells D 2 The collection of letters number progress gradually frequency sweep, frequency sweep step are docked in known reception signal frequency range by designing digital fabrication filter Into the bandwidth equal to formed filter, the bandwidth of formed filter is arranged according to the band limits for receiving signal, often scans frequency point To being counted to the integrated power in filter band by power statistic algorithm, and record the power of frequency point and corresponding frequency point Level transmits this information to and receives signal generation unit C, and the sampling rate of the above analog to digital conversion circuit requires to be to receive signal The 2 times or more of bandwidth.

3. according to claim 1 with the device for receiving out-of-band interference in adaptive cancellation wireless transceiver system, wherein Signal synchronization unit E includes reception antenna E1, emits signal detection power supply E2 and synchronous signal obtaining unit E3；

Reception antenna E1 receives base station downlink signal, and transmitting detecting signal unit E2 is realized is converted into number by transmitting radiofrequency signal Signal, synchronous signal obtaining unit E3 realize that the synchronization of signal, E3 are led from primary pilot channel and auxiliary respectively under baseband rate Primary pilot signal and auxiliary pilot signal are obtained in frequency signal, and the downlink synchronous signal of base station, downlink are obtained by operation The information such as signal derive the frequency range of base station received signal according to downlink signal, and are transferred to the information of acquisition by E3 What frequency-discriminating circuit D of signal generation unit C received.

4. receiving out-of-band interference in adaptive cancellation wireless transceiver system according to any described the having in claim 1,2 or 3 Device, wherein the reception signal generation unit C includes receiving signal baseband processor unit C1 and receiving signal intermediate frequency to turn to penetrate Frequency circuit C2；

The process that signal generates is to obtain base station down synchronizing information according to signal synchronization unit E3, and signal kinds receive signal Recognition unit D2 obtains the frequency and power for receiving signal, is input to data processing unit G and carries out data analysis and process acquisition Frequency, level, carrier number, carrier bandwidths and the signaling mode of signal are received, then by reception signal baseband processor unit C1 Generate one and the essentially identical signal of base station received signal；Reception signal intermediate frequency turns radio circuit C2 and C is received signal baseband The signal that processing unit C1 is generated is converted into radiofrequency signal and is output to the first amplitude modulation/phase modulation circuit B6.

5. it is according to claim 1 with the device for receiving out-of-band interference in adaptive cancellation wireless transceiver system, wherein Radio frequency path and multiple-path coupler A include microstrip line or coaxial cable A3, the first coupler A2, the second coupler A4, third coupling Clutch A5, power feed circuit A6, the first RF switch A7, the second RF switch A9, third RF switch A10, the 4th radio frequency Switch A12, the 5th RF switch A13, the 6th RF switch A15, the first trapper A8, the second trapper A11 and third trap Device A14；

Wherein radio frequency connector A1, the first coupler A2, strip line or coaxial cable A3, the second coupler A4, third coupler A5, power feed circuit A6 bandwidth of a device is required to simultaneously by emitting signal and receiving signal, and each component is slotting Damage is less than 0.1dB, and the passive intermodulation index of each device is not docked the collection of letters number and had an impact, and the power of each component holds Amount should be greater than the additional certain drop volume of maximum transmission power of base station；First coupler A2, the second coupler A4, third coupler Isolation between A5 need to interfere with each other between circuit, should be greater than 20dB or more per the directionality of class coupler, and There is isolation between other components of described device；

The adaptive cancellation device works in FDD wireless transceiver systems or TDD wireless transceiver systems transmitting sequential When, the first RF switch A7, the second RF switch A9, third RF switch A10, the 4th RF switch A12, the 5th RF switch At A13, the 6th RF switch A15 wholes double-throw contact 1, make the first trapper A8, the second trapper A11 and third trapper A14 is respectively at on-state, and the first coupler A2 is coupled into the transmitting signal come by the first trapper A8 filters at this time It removes, the second coupler A4 is coupled into the transmitting signal come and is filtered out by the second trapper A11, the third coupler A5 couplings The transmitting signal come in is filtered out by third trapper A14；

When the adaptive cancellation device works in TDD wireless transceiver systems reception sequential, the first RF switch A7, second RF switch A9, third RF switch A10, the 4th RF switch A12, the 5th RF switch A13, the 6th RF switch A15 are complete Portion is switched at contact 2, and the first trapper A8, the second trapper A11 and third trapper A14 are bypassed respectively, described The reception of first coupler A2 couplings and interference signal directly input amplifying circuit B1；First amplitude modulation/phase converter F1 outputs Signal is directly output to the coupled end of the second coupler A4；The reception of the third coupler A5 coupling ports output and interference letter Number it is directly inputted to reception and interferer signal detection circuit F2.

6. the device with reception out-of-band interference in adaptive cancellation wireless transceiver system according to claim 1,5, In, it includes amplifying circuit B1, power splitter B2, time delay circuit B3, bucking circuit B4, the 4th coupler to receive signal cancellation unit B B5 and the first amplitude modulation/phase modulation circuit B6, second receives signal deteching circuit B7；

The first coupler A2 emits and is received from radio-frequency receiving-transmitting main path couplings signal and comes in, and then passes through the first radio frequency Switch A7, the first trapper A8, the second RF switch A9, the reception and interference signal exported from the second RF switch A9 are input to Amplifying circuit B1, then through amplifying circuit B1 will receive and interference signal suitably amplified, power splitter B2 will receive and interfere letter Number it is divided into two tunnels, wherein signal reaches bucking circuit B4 by time delay circuit B3 all the way, is generated with by reception signal generation unit C Another way receive signal and received at bucking circuit B4 after the first amplitude modulation/phase modulation circuit B6 carries out amplitude modulation and phase modulation The counteracting of signal, wherein the reception signal exported by the 4th coupler A5 coupled ends is input to the second reception signal deteching circuit B7 is converted the signal into after digital signal by the second reception signal deteching circuit B7 and is output to data processing unit G, at data It manages unit G and received signal power is obtained by operation, and the first amplitude modulation/phase modulation circuit B6 is adjusted according to the size for receiving signal So that the reception signal being conditioned be delayed by B3 after signal in reception signal amplitude it is equal, opposite in phase, counteracting connects The collection of letters number retains and receives interference signal；

Wherein amplifying circuit B1 is low noise amplifier circuit, and gain is the amplification of 50-80dB；First amplitude modulation/phase modulation circuit B6's Amplitude modulation precision meets 0.1-0.5dB, and phase modulation precision meets 1 ° -10 °, and the delay of time delay circuit B4 generates electricity with another route signal The time that road generates signal is identical.

7. according to claim 1 with the device for receiving out-of-band interference in adaptive cancellation wireless transceiver system, wherein Interference signal offset unit F is received to be made of the second amplitude modulation/phase modulation circuit F1 and reception interferer signal detection circuit F2；

The reservation interference signal of the 4th coupler B5 outputs is output to the 4th and is penetrated by the second amplitude modulation/phase modulation circuit F1 Frequency switch A12, then it is output to third RF switch A10 by the second trapper or by straight-through, by third RF switch A10 It is output to the coupled end of the second coupler A4, is fed into primary path A3；

The coupler A5 is coupled into the reception come and interference signal passes through the 5th RF switch A13, third trapper device A14, Be input to after 6th RF switch A15 receive interferer signal detection circuit F2, receive interferer signal detection circuit F2 will receive and Out-of-band interference signal is converted into digital signal, is output to data processing unit G, data processing unit G is according to reception interference signal Size adjust the second amplitude modulation/phase modulation circuit F1 so that the reception in the interference signal and radio-frequency receiving-transmitting primary path of reservation is dry The amplitude for disturbing signal is equal, opposite in phase, until the amplitude of the reception interference signal in radio-frequency receiving-transmitting primary path is made less than corresponding The linear preset standard value of reception of formula.

In the reception interferer signal detection circuit F2, the sampled signal bandwidth requirement of A/D converter is to receive signal band Wide 3 times or more.

8. a kind of device with reception out-of-band interference in adaptive cancellation wireless transceiver system according to claim 1, Wherein, wherein data processing unit is by including but not limited to central processing unit, programmable logic processor, peripheral storage unit, Communication interface is constituted；

The Data Data processing unit G realizes the collection of data, acquisition, processing and external the control output of data；Institute It is connected by communication interface between the data processing unit G stated and reception signal frequency discrimination cells D, by reception signal frequency discrimination cells D The information such as the frequency, carrier bandwidths, carrier number that receive signal are transferred to data processing unit G, data processing unit G and signal It is connected by communication interface between synchronization unit E, frame synchronization information is passed into data processing unit G by signal synchronization unit； Data processing unit G is by between frequency, carrier bandwidths, carrier number, and synchronizing information etc. is after operation and processing by these information Signal generation unit C is passed to by interface；The control voltage of data processing unit output simultaneously controls the first amplitude modulation/phase modulation respectively Circuit B6 and the second amplitude modulation/phase modulation circuit F1 realizes the adjustment of amplitude and phase respectively；Data processing unit G and second receives letter Reception signal is sampled by data-interface between number detection circuit B7, data processing unit G and receives interferer signal detection electricity Reception interference signal is sampled by data-interface between the F2 of road；The data processing unit G is according to synchronous signal obtaining list The TDD synchronizing informations that first E is obtained control the first RF switch A7, the second RF switch A9, third RF switch A10, and second RF switch A12, the first RF switch A13, the second RF switch A15；It will be with interfering signal power by external communication interface And the reception interference signal preset value curve changed is stored in data processing unit.

It is received 9. being had in adaptive cancellation wireless transceiver system to any described one kind of claim 8 according to claim 1 The device of out-of-band interference, the present apparatus are applied in wireless transceiver equipment, and variation is the integration three described in claim 5 Road coupler A3 is substituted by 3 independent couplers, and position of 3 independent couplers in wireless transceiver equipment can have Multiple combinations；The first RF switch A7, the second RF switch A9, third RF switch A10, the 4th RF switch A12, 5th RF switch A13, the 6th RF switch A15, the first trapper A8, the second trapper A11, third trapper A14 can be with Saving should not；The reception signal cancellation unit is identical as the reception signal cancellation unit B described in claim 6；Described Interference signal offset unit is identical as the reception interference signal offset unit F described in claim 7；Work as wireless transceiver equipment Inside have is with the reception signal frequency discrimination Elementary Function same circuits described in claim 2, receives signal frequency discrimination cells D and saves；Power Profit requires transmitting signal receiving antenna E1 in the signal synchronization unit described in 3 and Base Transmitter signal deteching circuit E2 to save； The signal generation unit is identical as the signal generation unit C described in claim 4；In the wireless transceiver equipment When having data processing unit and its performance to meet the requirements, data processing unit G is saved should not；Claim 9, claim 10 institute The signal stated synchronizes, and signal generates, and receives signal cancellation, and the realization software code that interference signal is offset is integrated into wireless receiving and dispatching letter In software in machine equipment.

10. a kind of with the method for receiving out-of-band interference in adaptive cancellation wireless transceiver system, wherein the method is according to connecing Collection of letters frequency discrimination obtains the carrier wave configuration for receiving signal, frequency, power information, and the synchronization of base station is obtained according to signal synchronization unit Signal, then a signal identical with radio receiving-transmitting unit receiving path reception signal is generated by reception signal generation unit, with Lower flow and method include receiving signal frequency discrimination flow, and signal synchronizes flow, receive signal and generate flow；

First to carrying out frequency discrimination from the reception signal of radio-frequency receiving-transmitting main path couplings, obtain receive the carrier wave configuration of signal, frequency, Power information specifically includes：

Step SD01：The bandwidth W1 for receiving signal is obtained from data processing unit G, is received signal low frequency and is originated frequency point F1, cut-off The information of frequency point F2；

Step SD02：The docking collection of letters number carries out this sampling of N；

Step SD03：The center frequency point that formed filter is arranged is F1, bandwidth W1；

Step SD04：The center frequency point of formed filter increases by a step by stepping W2；

Step SD05：Count the integrated power in formed filter band；

Step SD06：The frequency information of statistics and power information are passed to data processing unit G to store；

Step SD07：Judge whether the frequency point of formed filter is equal to and be more than F2, SD08 is thened follow the steps if it is greater than F2, if SD04 is thened follow the steps less than or equal to F2；

Step SD08：The table that the frequency of acquisition and power information are formed to reception signal by data processing unit stores；

The process for obtaining synchronizing signal is realized by synchronous signal obtaining unit E3 and data processing unit G again, is specifically included：

Step SE1：N times sampling first is carried out to base station downlink signal；

Step SE2：The base station downlink signal of sampling is converted to baseband rate by Digital Down Convert；

Step SE31：Signal after down coversion divides two-way, wherein signal is for just synchronous all the way, first by the number of the roadbed band signal It is downsampled to 1.92MHZ according to rate；

Step SE32/SE36：PSCH channels are obtained from the data that sampling rate is 1.92MHz, and choose 128 from PSCH channels The data of point, then do the data of this 128 points the related operation of time domain, obtain main sync bit PSS, by main synchronization The operation of signal PSS obtains u values；

Step SE33：The positions assist in synchronization SSS are derived by calculating, and therefrom choose at 128 points according to the main synchronous positions PSS Time domain SSS signals；

Step SE34：FFT operations are done to the SSS signals of 128 points of acquisition, obtain 12 positions frequency domain SSS；

Step SE35/37/38/39：By doing frequency domain correlation to auxiliary synchronous signal SSS data, Nid1 values are obtained respectively, The front and back field indication signal of auxiliary synchronous signal SSS, the synchronization frame start position of auxiliary synchronous signal SSS；

Step SE3A：According to the acquisition of step SE38/SE39 as a result, obtaining from auxiliary synchronous signal 30.72MHz downlink roughs Frame header position；

Step SE3B：PCI is obtained by doing correlation computations to NID2 and NID1；

Step SE41：The data that baseband rate is 30.72MHz are sampled；

Step SE42：The point on the basis of downlink rough frame header position, in its left and right settings sliding window, sliding window value is 2048；

Step SE43：Sliding window horizontally slips slides 2048 point PSS time-domain signals respectively；

Step SE44：Prepare descending frame head position by horizontally slipping to obtain；

Finally generate one according to the frequency discrimination information and synchronizing information of acquisition and receive the identical signal of signal, wherein the generation with The main receiving path of radio receiving-transmitting unit receives the identical reception signal process of signal, specifically includes：

Step SC01：By data processing unit G base station down working frequency information, the signal of base station are obtained from signal synchronization unit Standard information；

Step SC02：Data processing unit G obtains base station and receives working frequency range according to downstream frequency information, base station frequency band distribution table Information reception bandwidth W1 originates low frequency frequency point F1, and high frequency, which terminates frequency point F2 and passes to, receives signal identification cells D 2；

Step SC03：Signal identification cells D 2 is received, according to the reception signal frequency information that G is provided, is united by sampling and power Meter obtains the power information of each frequency point；

Step SC04：Data processing unit G, according to the frequency for the reception signal for receiving the identification of signal identification unit, each frequency point Corresponding power information, which is formed, receives signal frequency power statistic table；

Step SC05：The standard and carrier information that signal baseband processing unit is provided according to data processing unit are received, starts to give birth to At the information of a corresponding new reception signal；

Step SC06：Newly generated reception signal message is subjected to channel coding, intertexture, at rate-matched according to corresponding standard Reason；

Step SC07：According to newly generated reception signal message scrambler processing is carried out according to corresponding standard；

Step SC08：According to newly generated reception signal message processing is modulated according to corresponding standard；

Step SC09：According to newly generated reception signal message layer mapping processing is carried out according to corresponding standard；

Step SC10：According to newly generated reception signal message precoding processing is carried out according to corresponding standard；

Step SC11：Reception signal baseband signal after treatment is subjected to Digital Up Convert to digital intermediate frequency；

Step SC12：According to newly generated reception signal message IFFT calculation processings；

Step SC13：Front-end processing is recycled according to newly generated reception signal message；

Step SC14：Reception signal baseband signal after treatment is subjected to Digital Up Convert to digital intermediate frequency, is repeated Step SC01 then restarts primary new signal and generates process.

11. as claimed in claim 10 with the method for receiving out-of-band interference in adaptive cancellation wireless transceiver system, wherein The method includes：In order to be come out from main path couplings with the reception in the mixed signal for receiving signal and reception interference signal Main signal, which is offset, obtains interference signal, is believed according to the reception that the second reception signal deteching circuit detects by data processing unit G Number adjustment the first amplitude modulation and phase modulation device B6 until receive signal be less than preset value, following below scheme include receive signal cancellation flow, connect It receives interference signal and offsets flow, detailed process is as follows：

Step SF1:The frequency for receiving signal is set, and bandwidth information receives the preset value of signal, and amplitude modulation/phase modulation circuit adjusts secondary Number mark Tnum=0, amplitude modulation/phase modulation circuit maximum adjustment number is L；

Step SF2：The docking collection of letters number carries out a n times sampling；

Step SF3：The bandwidth of data processing unit G setting formed filters is W, and frequency point is the center frequency point F1 for receiving signal；

Step SF4：Count general power in formed filter band；

Step SF5：Give the power transmission of the reception signal of statistics to data processing unit G；

Step SF6：Data processing unit G judges to receive whether power in signal band is less than predetermined threshold value, if less than default Threshold value then jumps to step SF1, otherwise jumps to step SF9；

Step SF7：By data processing unit G control adjustment the first amplitude modulation/phase modulation circuit B6, the first amplitude modulation/phase modulation circuit adjustment Number Tnum+1；

Step SF8：Judge Tnum>Whether N is true, is, jumps to step SF9, otherwise jumps to step SF2 afterwards；

Step SF9：Terminate this adjustment；

After the step SF1-SF7 obtains reception interference signal, the second amplitude modulation and phase modulation device F1 is controlled by data processing unit G to adjust The amplitude and phase of whole interference signal make the interference letter in the amplitude and phase and transmitting-receiving primary path of the interference signal being adjusted Number amplitude it is equal, opposite in phase, to offset the interference signal in radio-frequency receiving-transmitting primary path, data processing unit G passes through dry The size of the interference signal of signal deteching circuit F2 detections is disturbed to judge offsetting whether reach effect, when interference signal is higher than default The second amplitude modulation/phase modulation circuit F1 is just adjusted when value, until interference signal meets the preset value of linear requirements, is specifically included：

The detection of step SG1 setting interference signal originates frequency point f1, f3, cut-off frequency point f2, f4, bandwidth W information, and setting second is adjusted Width/phase modulation circuit adjustment mark Dnum=0, it is M that the second amplitude modulation/phase modulation circuit, which adjusts maximum times, and it is default to receive interference signal It is worth in table and receives interference signal preset value curve；

Step SG2 carries out n times sampling second step the center frequency point of forming filter is arranged being f1 to reception and out-of-band interference signal；

The center frequency point of step SG3 setting formed filters is f1, and the bandwidth of formed filter is Wa third one-step forming filters IF spot increase a stepping；

Step SG4 formed filter bandwidth is constant, and center frequency point presses stepping and increases the 4th step of step statistics formed filter upwards Power in band；

Integrated power in step SG5 statistics formed filter bands in band limits；

The power and frequency information of step SG6 data processing units G record statistics；

Whether the center frequency point of step SG7 formed filters is more than f2, and step SG7 is then jumped to if it is greater than f2, if it is less than F2 then jumps to step SG3；

The center frequency point of step SG8 setting formed filters is F2, bandwidth Wa；

The center frequency point of step SG9 formed filters increases by a step by stepping；

Integrated power in step SG10 statistics formed filter bands in band limits；

The power and frequency information that step SG11 is counted by data processing unit G records；

Whether the center frequency point of step SG12 formed filters is more than G, then jumps to SG12 if it is greater than G, is then jumped if it is less than G Go to SG8；

Step SG13 selects integral bandwidth Wj by data processing unit according to current demand signal standard；

Step SG14 is to count bandwidth to integrate bandwidth Wj, the work(between statistics f1-f2 and f3-f4 in arbitrary continuation Wj bandwidth Rate, and maximizing；

Step SG15 receives the maximum value of out-of-band interference signal power statistics whether less than interference signal preset value thresholding is received, such as Fruit then jumps to step SG18 less than threshold value, otherwise jumps to step SG16；

Step SG16 is by data processing unit G second adjustments amplitude modulation/phase converter F2, the second amplitude modulation/phase modulation circuit adjustment marks Dnum+1；

The second amplitude modulation of step SG17/phase converter the regulation of electrical circuit number Dnum>M is no, is, jumps to step SG18, otherwise jumps to Step SG2 is gone；

Step SG18 terminates this adjustment.