CN102763446A - Signal receiving and sending methods, transmitter, receiver, and system thereof - Google Patents
Signal receiving and sending methods, transmitter, receiver, and system thereof Download PDFInfo
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- CN102763446A CN102763446A CN2012800004961A CN201280000496A CN102763446A CN 102763446 A CN102763446 A CN 102763446A CN 2012800004961 A CN2012800004961 A CN 2012800004961A CN 201280000496 A CN201280000496 A CN 201280000496A CN 102763446 A CN102763446 A CN 102763446A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/24—Cell structures
- H04W16/28—Cell structures using beam steering
Abstract
Embodiments of the present invention provide a signal receiving method, a signal sending method, a transmitter, a receiver, and a system thereof. The signal receiving method comprises: respectively performing analog beamforming (ABF) processing on M channels of signals received by a plurality of antenna elements, M being a natural number greater than or equal to 2; respectively performing digital beamforming (DBF) processing on N channels of the M-channel signals after the ABF processing, N being a natural number greater than or equal to 2; and performing decoding processing on the signals after the DBF processing. Therefore, desirable performance can be achieved, and meanwhile, the costs can be reduced, thereby improving the cost-effectiveness.
Description
Receive and send method, emitter, receiver and its systems technology field of signal
The present embodiments relate to the communications field, and more particularly, to a kind of method for receiving signal, method, emitter, receiver and its system of transmission signal.Background technology
Active antenna system is a kind of significant base stations system, and it can effectively reduce antenna and radio frequency（Radio Frequency, RF) the loss between module, lift the radiation efficiency of radiofrequency signal, install simple, and the beam shape of antenna can be changed by numeric field to improve covering and the capacity of system, thus increasingly paid attention to by operator and telecommunication apparatus supplier.
Wave beam forming（Beamforming) it is a kind of advanced multi-antenna technology, it passes through multiple bays（Antenna element) composition aerial array, the signal in multiple array elements is produced into wave beam forming by assigning the weight of certain feature to the signal launched or received between multiple bays, so that transmitting is with obvious directional characteristic or to receive the signal with certain party tropism, useful signal can effectively be strengthened and suppress interference, and then improve the Signal to Interference plus Noise Ratio of signal（ Signal-Interference-Noise Rate, SINR ).
Currently, analog beam figuration is generally used（Analog Beamforming, ABF) or digital beam forming（Digital Beamforming, DBF) come adjust transmission signal or receive signal amplitude and/or phase.But, although ABF costs are relatively low can not to obtain good performance, and DBF although results in good performance but cost is higher.The content of the invention
The present invention provides a kind of method for receiving signal, sends method, emitter, receiver and its system of signal, enabling while preferable performance is obtained, additionally it is possible to reduce cost, lift cost performance.
One side according to embodiments of the present invention includes there is provided a kind of method for receiving signal, this method：Analog beam figuration (ABF) is performed respectively to the signal received via multiple bays according to M roads to handle, wherein M is the natural number more than or equal to 2；M roads signal after to being handled through ABF performs digital beam forming respectively according to N roads（DBF) handle, wherein N is the natural number more than or equal to 2；And to being handled through DBF after signal perform decoding processing.
There is provided a kind of method for transmission signal, the party for other side according to embodiments of the present invention
Method includes：Digital beam forming is performed respectively according to N roads to the signal to be sent（DBF) handle, wherein N is the natural number more than or equal to 2；N roads signal after to being handled through DBF performs analog beam figuration respectively according to M roads（ABF) handle, wherein M is the natural number more than or equal to 2；And launch the signal after being handled through ABF via multiple bays.
Other side according to embodiments of the present invention includes there is provided a kind of receiver, the receiver：Analog beam figuration（ABF) unit, performs ABF processing, wherein M is the natural number more than or equal to 2 respectively for the signal to being received via multiple antennas according to M roads；Digital beam forming（DBF) unit, performs DBF processing, wherein N is the natural number more than or equal to 2 respectively for the M roads signal after to being handled through ABF according to N roads；And decoder, handled for the signal perform decoding after to being handled through DBF.
Other side according to embodiments of the present invention includes there is provided a kind of emitter, the emitter：Digital beam forming（DBF) unit, for performing DBF processing respectively according to N roads to the signal to be sent, wherein N is the natural number more than or equal to 2；Analog beam figuration（ABF) unit, performs ABF processing, wherein M is the natural number more than or equal to 2 respectively for the N roads signal after to being handled through DBF according to M roads;And transmitter unit, for launching the signal after being handled through ABF via multiple antennas.
There is provided a kind of antenna system, including described receiver and/or described emitter for other side according to embodiments of the present invention.
The mode that technical solution of the present invention is combined by using ABF and DBF, enabling while preferable performance is obtained, additionally it is possible to reduce cost, lift cost performance.Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, the accompanying drawing used required in being described below to embodiment is made cylinder and singly introduced, apparently, drawings in the following description are only some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.In in the whole text, same or similar reference refers to same or similar element.
Fig. 1 is to show the exemplary flow chart for being used to receive the method for signal according to embodiments of the present invention.Fig. 2 is to show the exemplary flow chart for being used to send the method for signal according to embodiments of the present invention.Fig. 3 shows the schematic diagram of the first specific implementation of receiver according to embodiments of the present invention.Fig. 4 shows the schematic diagram of the second specific implementation of receiver according to embodiments of the present invention.Fig. 5 shows the schematic diagram of the first specific implementation of emitter according to embodiments of the present invention.
Fig. 6 shows the schematic diagram of the second specific implementation of emitter according to embodiments of the present invention.Illustrate the schematic diagram of another emitter that linearisation is performed using APD according to embodiments of the present invention.
Fig. 8 show it is according to embodiments of the present invention, the schematic diagram of linearisation is wherein performed based on each in multiple combining paths.
Fig. 9 is the exemplary block diagram for the structure for showing receiver according to embodiments of the present invention.
Figure 10 is the exemplary block diagram for the structure for showing emitter according to embodiments of the present invention.Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made belongs to the scope of protection of the invention.
Technical scheme, can apply to various communication systems, for example：Global system for mobile communications（Global System of Mobile communication, GSM), CDMA（CDMA, Code Division Multiple Access) system, WCDMA（WCDMA, Wideband Code Division Multiple Access Wireless), GPRS (GPRS, General Packet Radio Service), UMTS (Universal Mobile Telecommunications System, UMTS)¾Long Term Evolution (LTE, Long Term Evolution) etc..
Mobile terminal（Mobile Terminal), also referred to as user equipment（UE, User Equipment), mobile subscriber equipment etc. can be through wireless access network（For example, RAN, Radio Access Network) communicated with one or more core nets, mobile terminal can be mobile terminal, such as mobile phone（Or be " honeycomb " phone）Or the computer with mobile terminal, for example, it may be portable, pocket, hand-held, built-in computer or vehicle-mounted mobile device, they exchange language and/or data with wireless access network.
Base station, can be the base station in GSM or CDMA（BTS, Base Transceiver Station), can also be the base station in WCDMA（NodeB), it can also be the evolved base station in LTE（ENB or e-NodeB, evolutional Node B), the present invention is not limited.
Hereafter, will be in active antenna system for the ease of description（Active Antenna System, AAS) context in specifically describe the embodiment of the present invention, but the invention is not restricted to this, it can also be applied to
His antenna system.
Fig. 1 is to show the exemplary flow chart for being used to receive the method 10 of signal according to embodiments of the present invention.This method 10 can be realized in receivers.
As shown in Fig. 1, in the 101 of method 10, analog beam figuration is performed respectively according to M roads to the signal that is received via multiple bays（Analog Beamforming, ABF) processing, wherein M is the natural number more than or equal to 2.
In 102, to being handled through ABF after M roads signal perform digital beam forming respectively according to N roads（Digital Beamforming, DBF) processing, wherein N is the natural number more than or equal to 2.DBF processing in all embodiments of the invention can both be carried out in digital intermediate frequency, can also be carried out in base band.For example, when DBF processing is carried out in digital intermediate frequency, feeding Base Band Unit carries out Base-Band Processing after the signal after being handled through DBF is multiplexed, and the Base-Band Processing includes demodulation and decoding processing；When DBF processing is carried out in base band when, the M roads signal after being handled through ABF downconvert to after base band according to N roads demodulate after, respectively perform DBF processing, afterwards, to being handled through DBF after signal progress decoding process.Illustrated in all embodiments of the invention by DBF processing exemplified by digital intermediate frequency progress, but be not limited to this, DBF processing can use currently existing scheme in the scheme that base band is carried out, and will not be described here.
In 103, to being handled through DBF after signal carry out decoding process.
According to embodiments of the present invention, the mode being combined by using ABF and DBF, enabling while preferable performance is obtained, additionally it is possible to cost is reduced, so as to lift cost performance.
Further, N in the embodiment above<M.
So, the number M of analog channel is less than by the number N of digital channel, so as to be effectively reduced the free degree of the Inclination maneuver scope of lifting antenna system while the channel resource of digital intermediate frequency is consumed.
Fig. 2 is to show the exemplary flow chart for being used to send the method 20 of signal according to embodiments of the present invention.This method 20 can be realized in transmitters.
As shown in Figure 2, in the 201 of method 20, digital beam forming is performed respectively according to N roads to the signal to be sent（DBF) handle, wherein N is the natural number more than or equal to 2.
In 202, to being handled through DBF after N roads signal perform analog beam figuration respectively according to M roads（ABF) handle, wherein M is the natural number more than or equal to 2.
In 203, the signal after being handled through ABF is launched via multiple bays.
According to embodiments of the present invention, the mode being combined by using ABF and DBF, enabling while preferable performance is obtained, additionally it is possible to cost is reduced, so as to lift cost performance.
Further, N<M.
So, the number M of analog channel is less than by the number N of digital channel, so as to be effectively reduced the free degree of the Inclination maneuver scope of lifting antenna system while the channel resource of digital intermediate frequency is consumed.
Specific implementation according to embodiments of the present invention is explained in greater detail next, with reference to accompanying drawing.Fig. 3 shows the schematic diagram of the first specific implementation 300 of receiver according to embodiments of the present invention.
As shown in Figure 3, receiver 310 receives signal from multiple bays, in this example embodiment, and the number of bay is ten（#1 to #10), but the invention is not restricted to this, the number of bay can be other any suitable numbers according to actual needs.Received signal is in multiple RX paths (i.e. analog channel）In pass through duplexer（DUP) it is filtered, by low-noise amplifier（Low Noise Amplifier, LNA) it is amplified and then downconverted device（Local oscillation signal is " LO ") it is (shown in such as Fig. 3 (a)）ABF processing is carried out after down coversion.Wherein, one or more of DUP included in multiple RX paths, LNA, low-converter, ABF can also be multiplexed according to the actual conditions of application.In this example embodiment, the number of RX path is 10, and RX path is one-to-one, i.e., each RX path with bay（Analog channel）Number corresponding to 1 bay and bay is also 10.But, by the way of wherein each RX path corresponds to 1 bay（That is, so-called one drives a framework）A simply preferred implementation of the embodiment of the present invention, and the invention is not restricted to this, those skilled in the art can use other modes according to factors such as design requirement and application environments, such as one drives two frameworks, three frameworks of drive.When each RX path corresponds to 1 bay, one can be retained in analog domain and drive a framework, so as to obtain the maximum free degree of the Inclination maneuver scope of antenna system.
Hereafter, to being handled through ABF after signal perform DBF processing.Specifically, synthesizer can for example be passed through（As shown in " ∑ " of the center section in Fig. 3）Signal after being handled through ABF is synthesized into multiple synthesis paths, then in multiple synthesis paths (i.e. digital channel）Each in perform subsequent process.Here, because the need in follow-up DBF processing, at least needing 2 digital channels, therefore, the number of multiple synthesis paths is greater than the natural number equal to 2.In addition, synthesizer can represent it is to perform vector to the signal from multiple RX paths to add here.
In the example shown in figure 3, the number of synthesis path is 2, wherein bay #1 to #5 is synthesized corresponding with a digital channel（As shown in the top half in Fig. 3, hereinafter referred to as the first digital channel）, and bay #6 to #10 synthesized corresponding with another digital channel（In Fig. 3
Shown in the latter half, hereinafter referred to as the second digital channel）.But, not limited to this of the embodiment of the present invention, signal after synthesis can be more roads, for example, the signal after synthesis can for 3 tunnels, 4 tunnels, etc..
Furthermore, it is possible to depending on reception（Target）Antenna radiation pattern, the parameter based on each bay are (such as main lobe size, secondary lobe size）To be synthesized.Specifically, in synthesis, the loss of signal after synthesis can will be caused minimum in several signals and the best several bays of performance signals (or the signal of analog channel）Synthesize corresponding with a digital channel.For example, in addition to the example shown in figure, there may be the signal wherein from odd number bay and be synthesized into corresponding with a digital channel and from even number bay signal and be synthesized into situation corresponding with another digital channel.In addition, multiple bays corresponding to each digital channel（Or analog channel）Number can be different, for example, in some cases, it is assumed that the number of bay be S, then can be by bay #1 to #】Synthesize it is corresponding with the first digital channel, bay #J+1 to # is synthesized it is corresponding with the second digital channel ..., by bay #L+1 to #Synthesize it is corresponding with N-1 digital channels, and bay #P+1 #S are synthesized it is corresponding with N digital channels, wherein 1<J<K<L<P<S and all be natural number.That is, synthesis path（Digital channel）Number and each synthesis path（Digital channel）With which bay（Or which bay）Correspondence can depend on the parameter of bay to determine.
Although being illustrated above in the context of one framework of drive, it will be understood by those skilled in the art that when driving many frameworks using one, can be synthesized with similar to the above.
After the signal after being handled through ABF is synthesized, in multiple synthesis paths, per all the way, same phase can be divided into（ 0.）Vector is orthogonal（ 90.）Vector, adjusts amplitude and/or phase, and pass through analog-digital converter according to the requirement at antenna beam inclination angle respectively（Analog-Digital Converter, ADC) sample and undergo the Digital Signal Processing of speed conversion, filter, ripple etc.（It is not shown）.
In addition, in N roads signal after synthesis per can be all the way multi-carrier signal, and perform DBF processing respectively according to N roads and can include：DBF processing is performed respectively to being divided into T roads according to wireless access standard or carrier wave frequency range per multi-carrier signal all the way in the signal of the N roads, and wherein T is the natural number more than or equal to 1.Further, in the multiple signals handled in all embodiments of the invention through ABF also can be multi-carrier signal per signal all the way.
Specifically, in order to carry out DBF processing, wave filter can be passed through per signal all the way after Digital Signal Processing（As shown in " Div " in Fig. 3 (a), alternatively referred to as frequency mixer）Branch is carried out in numeric field, for example, is based on each wireless access standard according to application request（Such as GSM, LTE and WCDMA）Or carrier wave frequency range carries out branch.Here it is possible to utilize digital control vibration
Device（Numerical controlled oscillator, NCO) carry out selection branch.The signal in each digital channel is divided into by GSM, WCDMA and LTE based on working form in Fig. 3, but the invention is not restricted to this, the signal of different carrier waves in same standard can also be divided, for example, be divided the signal in different carrier frequency in GSM signals.Because each digital channel can be that the signal after multi-carrier channel, the synthesis in i.e. each digital channel can be multi-carrier signal, so can be divided according to the quantity and its corresponding carrier frequency of the different carrier waves for the signal being input in the passage, and the quantity of the signal after division is not limited to 3.
Afterwards, DBF processing is performed in the digital domain according to each carrier wave, and be sent to next stage（It is not shown）Decoded, for example, can be decoded respectively according to GSM signals, WCDMA signals and LTE signals.Here, as shown in Figure 3, in GSM signals, WCDMA signals and LTE signals each can be respectively according to same phasor1（) and orthogonal vector I（Q) decoded, wherein, GSM-I signals, WCDMA-I signal and LTE-I signal belong to the first digital channel, and GSM-Q signal, WCDMA Q signals and LTE-Q signal belong to the second digital channel.Follow-up Base-Band Processing can be existing Base-Band Processing process, and the substantive content relation with the present invention is little, will not be repeated here.
In each digital channel, finite impulse response (FIR) can also be included（ Finite Impulse Response,
FIR) wave filter come respectively to being divided by carrier wave after signal be filtered.
FIR filter and NCO principle and to act on this area be known, and with the substantive content relation of the present invention less, thus in order to simplicity thus detailed description is omitted.
In addition, although two-way digital channel is only shown as an example for convenience of description here, but those skilled in the art are apparent that the present disclosure applies equally to the situation more than two-way digital channel.
According to embodiments of the present invention, because employing ABF+DBF structure, make it possible to while preferable performance is obtained, cost can also be reduced, lift cost performance, and further allow the number of digital channel to be less than the number of analog channel, so that in the digital domain can be using as far as possible few digital channel.Therefore, it is possible to be effectively reduced the channel resource consumption of digital intermediate frequency, system power dissipation and cost, it is possible to obtain the free degree of bigger antenna system Inclination maneuver scope.
Fig. 4 shows the schematic diagram of the second specific implementation 400 of receiver according to embodiments of the present invention.
In addition to ABF units are different from the position of low-converter, receiver 400 has substantially similar structure with receiver 300 and can perform essentially identical function, therefore, for brevity, hereafter it is described the difference between them is focused on, and similar 26S Proteasome Structure and Function is repeated no more.
In Fig. 3, before ABF processing is performed to received signal, it is performed at down coversion
Reason, i.e. low-converter are located at before ABF units.But, as shown in Fig. 4, in receiver 400, the ABF units in each analog channel are located at low-converter（As shown in " Θ " in Fig. 4）Before, i.e., before performing DBF processing after the signal after to being handled through ABF performs synthesis and to the signal after synthesis, down coversion is performed respectively in each in multiple synthesis paths.Therefore, each corresponding multiple analog channels can further share a low-converter to each digital channel.
It therefore, it can cylinder circuit design, while further reduction power consumption and cost.
Fig. 5 shows the schematic diagram of the first specific implementation 500 of emitter according to embodiments of the present invention.
As shown in Figure 5, emitter 500 includes two digital channels and ten bays, and drives a framework using one, but it is understood that, the invention is not restricted to this.
With the example of above-mentioned receiver similarly, the emitter 500 shown in Fig. 5 also includes two synthesis paths, i.e. the first synthesis path（Digital channel）（As shown in Fig. 5 top half）, first synthesis path include same phase（I it is) and orthogonal（Q) two-way, and the second synthesis path（Digital channel）（As shown in Fig. 5 the latter half）, second synthesis path is also including same phase（I it is) and orthogonal（Q) two-way.Signal to be launched is based on each working form in this two-way digital channel in numeric field according to application request（Such as GSM, LTE or WCDMA）Or operating carriers adjust amplitude and/or phase, i.e. by DBF processing in numeric field.For example, as shown in Figure 5, same to phase（I it is) and orthogonal（Q GSM signals, WCDMA signals and LTE signals) is input into each in two-way digital channel, and undergoes DBF processing respectively according to carrier wave, wherein, GSM1 signals, WCDMA1 signals and LTE1 signals belong to the first digital channel（Synthesis path), and GSM2 signals, WCDMA2 signals and LTE2 signals belong to the second digital channel（Synthesis path）.Here, carrying out branch to signal according to operating carriers can be realized using NCO.
In addition, in signal, i.e. N roads signal in all embodiments of the invention in each synthesis path per can be all the way multi-carrier signal, and digital beam forming is performed respectively according to N roads to the signal to be sent（DBF) processing can include：DBF processing is performed respectively to being divided into T roads according to wireless access standard or carrier wave frequency range per multi-carrier signal all the way in the signal of the N roads, and wherein T is the natural number more than or equal to 1.
Afterwards, the signal after being handled through DBF is split into multiple transmission paths（As the RX path in the specific implementation of receiver, alternatively referred to as analog channel）.With receiver section similarly, it is possible to use such as shunt（As shown in " Div " of the center section in Fig. 5）Signal branch after being handled through DBF is multiple transmission paths, and and then corresponding to multiple bays.Preferably, when
Using one drive one framework in the case of multiple transmission paths and multiple bays --- to it is corresponding when can obtain whole antenna system Inclination maneuver scope the maximum free degree.But not limited to this of the embodiment of the present invention, the frameworks that other drives can also be taken many, the free degree of Inclination maneuver scope can also be improved.
Specifically, for example, the shunt can also depend on transmitting（Target）Antenna radiation pattern, the parameter based on each bay（Such as main lobe size, secondary lobe size）To carry out branch.
Multiple signals after branch pass through respective upconverter respectively（As shown in " " in left side in Fig. 5）It is up-converted, then undergoes ABF processing to adjust amplitude and/or phase in respective analog channel respectively.Finally, the multiple signals after being handled through ABF amplify through amplifier and are transmitted to corresponding bay respectively to be used to radiate.In the multiple signals handled in all embodiments of the invention through ABF also can be all the way often multi-carrier signal.
In Figure 5 in shown emitter 500, in order to solve because power output retracts（Output Power Back Off, OPBO) caused by delivery efficiency reduction the problem of, it is possible to use peak factor reduces (Crest Factor Reduction, CFR) and linearization technique.CFR is also known as wave absorption algorithm, and it reduces the papr of multicarrier input signal by the crest of cancellation signal（Peak to Average Power Ratio, PAPR ).Linearization technique is used for the linear working range of extended power amplifier, can include analog predistortion（Analog Pre-distortion, APD) and the mode such as digital pre-distortion (Digital Pre-distortion, DPD).Their principle is well known in the art, thus in order to cylinder it is clean thus detailed description thereof is omitted.CFR and DPD are used in the example shown in fig. 5, but the invention is not restricted to this, those skilled in the art can be according to design requirement and application environment using one or more of CFR, DPD and APD.
Similarly, although two-way digital channel is only shown as an example for convenience of description here, but those skilled in the art are apparent that the present disclosure applies equally to the situation more than two-way digital channel.
According to embodiments of the present invention, by using ABF+DBF structure, make it possible to while preferable performance is obtained, cost can also be reduced, and further allow the number of digital channel to be less than the number of analog channel, so that in the digital domain can be using as far as possible few digital channel.Therefore, it is possible to be effectively reduced the channel resource consumption of digital intermediate frequency, system power dissipation and cost, it is possible to obtain the free degree of bigger antenna system Inclination maneuver scope.
Fig. 6 shows the second specific implementation 600 of emitter according to embodiments of the present invention.
Similarly, in Fig. 5, upconverter is both provided with before each ABF units in analog channel（As shown in " " in left side in Fig. 5）, i.e., after the signal after being handled through DBF is split into multiple transmission paths, up-conversion is performed in each in multiple transmission paths respectively, is then divided again
Zhi Hang not ABF processing.But, as shown in Figure 6, in emitter 600, upconverter（Such as left side in Fig. 6 ", it is shown）Before shunt and ABF units, i.e. before the signal after being handled through DBF is split into multiple transmission paths, up-conversion is performed respectively in each of multiple combining paths, is then that multiple transmission paths perform ABF processing respectively again by the signal branch after up-conversion.
So can cylinder circuit design, while further drop 4 third constellations power consumptions and cost.
Although showing to use digital pre-distortion in fig. 5 and fig.（Digital Pre-Distortion, DPD) technology performs linearisation to the signal to be launched, but analog predistortion can also be used（Analog Pre-Distortion, APD) perform linearisation.Fig. 7 shows another emitter 700 that linearisation is performed using APD according to embodiments of the present invention.In addition to using APD, the emitter 700 shown in Fig. 7 has identical structure with the emitter 600 shown in Fig. 6.
In the case where performing linearisation using APD, performed respectively in each of multiple transmission paths after ABF processing, APD is performed to the signal in each transmission path respectively.Certainly, the invention is not restricted to this, linearisation can also be performed using other suitable technologies.
Fig. 8 show it is according to embodiments of the present invention, the schematic diagram of linearisation is wherein performed based on each in multiple combining paths.Although linearization technique is shown as into DPD in figure, the invention is not restricted to this, other suitable linearization techniques, such as APD can also be used.
As shown in Figure 8, passed through with a combining road（Digital channel）Corresponding multiple transmission paths（Analog channel）A feedback channel can be shared, i.e., using identical feedback result（Such as amplitude and/or phase）To adjust the parameter of linearization technique.Because that the signal of multiple analog channels corresponding with same digital channel can show preferable performance when being synthesized, so correspondingly, in feedback channel ABF processing is also carried out before the signal to being coupled out respectively from multiple analog channels is synthesized, and each ABF can take with each ABF on transmission channel that corresponding configuration adjusts the amplitude and/or phase of signal respectively, also to show preferable performance as the class signal synthesized in feedback channel, it is larger for thereby may be ensured that the signal power for giving linearizer, and then it is able to ensure that the effective linearisation of execution.
Fig. 9 is the exemplary block diagram for the structure for showing receiver 900 according to embodiments of the present invention.
As shown in Figure 9, receiver 900 can include ABF units 901, DBF units 902 and decoder 903.
ABF units 901 are used to perform the signal received via multiple bays respectively according to M roads
ABF processing, wherein M are the natural number more than or equal to 2.DBF units 902 are used for through ABF
M roads signal after processing performs DBF processing respectively according to N roads, and wherein N is the natural number more than or equal to 2.Signal after decoder 903 is used for being handled through DBF carries out decoding process.
According to embodiments of the present invention, the mode that receiver 900 is combined by using ABF and DBF, enabling while preferable performance is obtained, additionally it is possible to cost is reduced, so as to lift cost performance.
In addition, receiver 900 can also include synthesizer（It is not shown）, for will be handled through DBF after M roads signal synthesize N roads, to cause the DBF units to perform DBF processing respectively to the N roads signal after synthesis, wherein N is less than M.
Figure 10 is the exemplary block diagram for the structure for showing emitter 1000 according to embodiments of the present invention.As shown in Figure 10, emitter 1000 includes DBF units 1001, ABF units 1002 and transmitter unit 1003.
DBF units 1001 are used to perform DBF processing respectively according to N roads to the signal to be sent, and wherein N is the natural number more than or equal to 2.Signal after ABF units 1002 are used for being handled through DBF performs ABF processing, and wherein M is the natural number more than or equal to 2.Transmitter unit 1003 is used to launch the signal after handling through ABF via multiple bays.
According to embodiments of the present invention, the mode that emitter 1000 is combined by using ABF and DBF, enabling while preferable performance is obtained, additionally it is possible to cost is reduced, so as to lift cost performance.
In addition, emitter 1000 can also include shunt, for will be handled through DBF after N roads signal be divided into M roads, to cause the ABF units 1002 to perform ABF processing respectively to the M roads signal after branch, wherein, N is less than M.
It is appreciated that, the specific implementation of receiver or emitter shown in figure 3 above to Fig. 7 is only for example, analog-to-digital conversion in receiver in addition to ABF and DBF combination, down coversion, filter-ripple, the processes such as IQ processing can be mode of the prior art, those skilled in the art can be deformed or be increased and decreased to these parts according to known to it, the present invention is not limited to the mode anticipated shown in figure or structure, similar, IQ processing in emitter in addition to ABF and DBF combination, digital-to-analogue conversion, up-conversion, the processes such as filtering can be mode of the prior art, those skilled in the art can be deformed or be increased and decreased to these parts according to known to it, the present invention is not limited to the mode anticipated shown in figure or structure.In addition, the embodiment of the present invention also provides a kind of antenna system, receiver and/or emitter that above-described embodiment is provided can be included.The embodiment of the present invention can be applied to the antenna system of active antenna system etc..
The embodiment of the present invention also provides a kind of communication system, including above-mentioned antenna system.
It should be noted that for clarity and conciseness, be illustrate only in Fig. 3 into Figure 10 and the present invention
The related part of embodiment, but it will be appreciated by those skilled in the art that, Fig. 3 to the equipment or device shown in Figure 10 can include other necessary units.
Those of ordinary skill in the art can be appreciated that, the unit and algorithm steps of each example described with reference to the embodiments described herein, it can be realized with electronic hardware, computer software or the combination of the two, in order to clearly demonstrate the interchangeability of hardware and software, the composition and step of each example are generally described according to function in the above description.These functions are performed with hardware or software mode actually, depending on the application-specific and design constraint of technical scheme.Professional and technical personnel can realize described function to each specific application using distinct methods, but this realization is it is not considered that beyond the scope of this invention.
It is apparent to those skilled in the art that, for convenience and simplicity of description, the specific work process of the system of foregoing description, device and unit may be referred to the corresponding process in preceding method embodiment, will not be repeated here.
In several implementations provided herein, it should be understood that disclosed systems, devices and methods, it can realize by another way.For example, device embodiment described above is only schematical, for example, the division of the unit, it is only a kind of division of logic function, there can be other dividing mode when actually realizing, such as multiple units or component can combine or be desirably integrated into another system, or some features can be ignored, or do not perform.Another, it, by some interfaces, the INDIRECT COUPLING or communication connection of device or unit, can be electrical, machinery or other forms that shown or discussed coupling or direct-coupling or communication connection each other, which can be,.It can be for the part that unit is shown or may not be physical location, can both be located at a place, or can also be distributed on multiple NEs.Some or all of unit therein can be selected to realize the purpose of this embodiment scheme according to the actual needs.
In addition, each functional unit in each of the invention embodiment can be integrated in a processing unit or unit is individually physically present, can also two or more units it is integrated in a unit.Above-mentioned integrated unit can both be realized in the form of hardware, it would however also be possible to employ the form of SFU software functional unit is realized.
If the integrated unit is realized using in the form of SFU software functional unit and as independent production marketing or in use, can be stored in a computer read/write memory medium.Understood based on such, the part or all or part of the technical scheme that technical scheme substantially contributes to prior art in other words can be embodied in the form of software product, and the computer software product is stored in
In one storage medium, including some instructions are to cause a computer equipment（Can be personal computer, server, or network equipment etc.）Perform all or part of step of each embodiment methods described of the invention.And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage（ROM, Read-Only Memory), it is random that deposit ear memory (AM, Random Access Memory), magnetic disc or CD etc. are various again can be with the medium of store program codes.
It may also be noted that in apparatus and method of the present invention, it is clear that each part or each step can be decomposed and/or reconfigured.These decompose and/or reconfigured the equivalents that should be regarded as the present invention.Also, the step of performing above-mentioned series of processes can order naturally following the instructions perform in chronological order, but and necessarily need not perform sequentially in time.Some steps can be performed parallel or independently of one another.
It is described above; only embodiment of the invention, but protection scope of the present invention is not limited thereto, any one skilled in the art the invention discloses technical scope in; change or replacement can be readily occurred in, should be all included within the scope of the present invention.Therefore, protection scope of the present invention described should be defined by scope of the claims.
Claims (26)
- Claims1. a kind of method for receiving signal, it is characterised in that this method includes：Analog beam figuration (ABF) is performed respectively to the signal received via multiple bays according to M roads to handle, wherein M is the natural number more than or equal to 2；M roads signal after to being handled through ABF performs digital beam forming respectively according to N roads（DBF) handle, wherein N is the natural number more than or equal to 2；AndSignal perform decoding processing after to being handled through DBF.2. according to the method described in claim 1, it is characterised in that described pair handled through ABF after signal perform DBF processing and include：M roads signal after being handled through ABF synthesizes N roads signal；AndDBF processing is performed respectively to the N roads signal after synthesis, wherein, N is less than M.3. method according to claim 1 or 2, it is characterised in that in the N roads signal after the synthesis is all the way often multi-carrier signal,It is described to perform DBF processing respectively according to N roads, including：DBF processing is performed respectively to being divided into T roads according to wireless access standard or carrier wave frequency range per multi-carrier signal all the way in the signal of the N roads, and wherein T is the natural number more than or equal to 1.4. the method according to any one in claims 1 to 3, it is characterised in that：The number of the multiple bay be equal to ^1, each bay with the signal of M roads often it is corresponding all the way.5. method as claimed in any of claims 1 to 4, it is characterised in that this method further comprises：Before ABF processing is performed to M roads signal, respectively to often performing down coversion all the way in the M roads signal.6. method as claimed in any of claims 2 to 4, it is characterised in that this method further comprises：Before performing after the M roads signal after being handled through ABF synthesizes N roads signal and to the N roads signal after synthesis DBF processing respectively, respectively in the N roads signal per performing down coversion all the way.7. a kind of method for transmission signal, it is characterised in that this method includes：Digital beam forming is performed respectively according to N roads to the signal to be sent（DBF) handle, wherein N is the natural number more than or equal to 2；N roads signal after to being handled through DBF performs analog beam figuration respectively according to M roads（ABF) handle, wherein M is the natural number more than or equal to 2；And Launch the signal after being handled through ABF via multiple bays.8. method according to claim 7, it is characterised in that described pair handled through DBF after N roads signal perform ABF processing according to M roads and include：N roads signal after being handled through DBF is divided into M roads, andABF processing is performed respectively to the M roads signal after branch, wherein, N is less than M.9. the method according to claim 7 or 8, it is characterised in that in the signal of the M roads is all the way often multi-carrier signal.10. the method according to any one in claim 7 to 9, it is characterised in that in the signal of the N roads is all the way often multi-carrier signal,The described pair of signal to be sent performs digital beam forming respectively according to N roads（DBF) handle, including：DBF processing is performed respectively to being divided into T roads according to wireless access standard or carrier wave frequency range per multi-carrier signal all the way in the signal of the N roads, and wherein T is the natural number more than or equal to 1.11. the method according to any one in claim 7 to 10, it is characterised in that：The number of the multiple bay be equal to M, each bay with the signal of M roads often it is corresponding all the way.12. the method according to any one in claim 8 to 11, it is characterised in that methods described further comprises：After the N roads signal after being handled through DBF is divided into M roads, respectively to often performing up-conversion all the way in the M roads signal.13. the method according to any one in claim 8 to 11, it is characterised in that methods described further comprises：Before N roads signal is divided into M roads, to often performing up-conversion respectively all the way in the signal of N roads.14. the method described in any one in claim 7 to 13, it is characterised in that methods described further comprises：Linearisation is performed based on often coming in the signal of N roads.15. a kind of receiver, it is characterised in that the receiver includes：Analog beam figuration（ABF) unit, performs ABF processing, wherein M is the natural number more than or equal to 2 respectively for the signal to being received via multiple antennas according to M roads；Digital beam forming（DBF) unit, performs DBF processing, wherein N is the natural number more than or equal to 2 respectively for the M roads signal after to being handled through ABF according to N roads；And Decoder, is handled for the signal perform decoding after to being handled through DBF.16. receiver according to claim 15, it is characterised in that the receiver further comprises：Synthesizer, for will be handled through ABF after M roads signal synthesize N roads signal, to cause the DBF units to perform DBF processing respectively to the N roads signal after synthesis, the N is less than M.17. the receiver according to claim 15 or 16, it is characterised in that：The number of the multiple bay be equal to M, each bay with the signal of M roads often it is corresponding all the way.18. the receiver according to any one in claim 15 to 17, it is characterised in that the receiver further comprises：Low-converter, positioned between the bay and the ABF units, for before ABF processing is performed to M roads signal, respectively to often performing down coversion all the way in the M roads signal.19. the receiver according to the claim 17 of claim 16 or reference claim 16, it is characterised in that the receiver further comprises：Low-converter, between the synthesizer and the DBF units, before performing DBF processing after for synthesizing N roads signal in the M roads signal after being handled through ABF and to the N roads signal after synthesis respectively, respectively in the N roads signal per performing down coversion all the way.20. a kind of emitter, it is characterised in that the emitter includes：Digital beam forming（DBF) unit, for performing DBF processing respectively according to N roads to the signal to be sent, wherein N is the natural number more than or equal to 2；Analog beam figuration（ABF) unit, performs ABF processing, wherein M is the natural number more than or equal to 2 respectively for the N roads signal after to being handled through DBF according to M roads；AndTransmitter unit, for launching the signal after being handled through ABF via multiple antennas.21. emitter according to claim 20, it is characterised in that the emitter further comprises：Shunt, for will be handled through DBF after N roads signal be divided into M roads, it is described to causeABF units perform ABF processing to the M roads signal after branch respectively, and N is less than M.22. the emitter according to claim 20 or 21, it is characterised in that：The number of the multiple bay be equal to M, each bay with the signal of M roads often it is corresponding all the way.23. the emitter according to the claim 22 of claim 21 or reference claim 21, it is characterised in that the emitter further comprises：Upconverter, between the shunt and ABF units, for after it will be handled through DBF N roads signal be divided into after M roads and the M roads signal after branch performed respectively before ABF processing, respectively in the M roads signal per performing up-conversion all the way.24. the emitter according to the claim 22 of claim 21 or reference claim 21, it is characterised in that the emitter further comprises：Upconverter, between the DBF units and shunt, for before being divided into M roads after DBF is performed respectively to N roads signal and by N roads signal, to often performing up-conversion respectively all the way in the signal of N roads.25. the emitter according to any one of claim 20 to 24, it is characterised in that the emitter further comprises：Linearizer, for performing linearisation based on often coming in the signal of N roads.26. a kind of antenna system, including the receiver according to any one of claim 15 to 19 and/or the emitter according to any one of claim 20 to 25.
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| PCT/CN2012/074197 WO2012103853A2 (en) | 2012-04-17 | 2012-04-17 | Signal receiving and sending methods, transmitter, receiver, and system thereof |
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| CN102763446B CN102763446B (en) | 2014-09-17 |
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| CN107395255B (en) * | 2017-07-05 | 2020-06-16 | 南京理工大学 | Robust hybrid beam forming method based on convex optimization |
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| Publication number | Publication date |
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| WO2012103853A3 (en) | 2013-03-21 |
| WO2012103853A2 (en) | 2012-08-09 |
| CN102763446B (en) | 2014-09-17 |
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