CN100568220C - Exhibition is communication system frequently - Google Patents
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- CN100568220C CN100568220C CNB2006800044198A CN200680004419A CN100568220C CN 100568220 C CN100568220 C CN 100568220C CN B2006800044198 A CNB2006800044198 A CN B2006800044198A CN 200680004419 A CN200680004419 A CN 200680004419A CN 100568220 C CN100568220 C CN 100568220C
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Abstract
A kind of exhibition is communication system frequently, and it comprises an antenna array, in order to receiving different summations required and non-required signal, and receiver, itself and this antenna array is coupled.Each receiver operates according to a separate channel sign indicating number, in order to remove to launch this required and non-required signal, and with the decision at least one desired signal relevant with this separate channel sign indicating number, and in order to remove to launch back this at least one desired signal of combination and non-required signal again.The coupling of one processor and this receiver, in order to according to from this composite signal of each receiver to form a hybrid matrix, wherein, the system of unit on the diagonal line of this hybrid matrix is to should desired signal, is adjacent to this cornerwise unit then to should non-required signal.This processor is also handled this hybrid matrix, makes the grade of this desired signal increase and this grade of non-required number reduction.One demodulator and the coupling of this processor are in order to this at least one desired signal of rectification.
Description
Technical field
The present invention is relevant with field of wireless communications, especially about a kind of exhibition frequency communication sink.
Background technology
The exhibition communication technology frequently is widely used in cordless communication network, and the principal character of these technology is that channel can be subdivided into data streaming again through orthogonal code.Under the ideal state, at the signal reception period, desired signal self has perfect related and is zero related with other signal, comprises the time delay variant of self.Go by one spreader after, this signal just can recover and only be subjected at random noise: x
k=as
k+ n disturbs.
Yet, in actual environment, these signals can be run into the channel distortion that caused because of multi-path transmission and sequential defective and produce and mix, and it then can reduce the orthogonality of signal, and this goes deployment signal finally can mix the composition of other signal and the composition of desired signal:
Wherein, a
Kks
kBe desired signal, other parts then are to disturb: x
k=a
Kks
k+ n
1+ n, wherein, n
1For disturbing the noise that is caused.
Generally, handle and to go deployment signal to be regarded as the symbol of the irrelevant part of additional noise in order to decision, but this can make the result just poor and produce an error rate that the subject of knowledge and the object of knowledge is unwanted, high error rate needs operation technique so that suitably integrality of one of data streaming to be provided.
A kind of method is the use that improves error-correcting code, but this can reduce the effective data rate of this link.Another method is to reduce symbol rate, but this also can reduce the effective data rate of this link.Also having a method is to use negative acknowledgment when this mistake surpasses the calibration capability of this coding, but this still can reduce the effective data rate of this link.Other sees through MIMO or diversity technology to handle the method for multi-path, all needs more complicated circuit at transmitter and receiver end.
Therefore, above-mentioned technology is not to reduce the effective data rate of this link, is to need more complex embodiment at transmitter and receiver end.In addition, also can need standardization usually at the required embodiment of transmitter and receiver two ends, and this can cause also and the incompatible problem of existing radio access network.
Summary of the invention
In view of aforesaid prior art, therefore purpose of the present invention just is to improve the decode procedure of spread spectrum signal.
According to this purpose of the present invention and other purpose, feature, advantage, provided by a receiver, it just removes some or all of irrelevant signals by receiving set earlier before by the symbol substitution routine processes, therefore, can reduce useful signal to interference ratio, make this chain be connected to lower error recovery permission.
This code translator will be checked many spread spectrum signals: x=As+n, rather than try to capture this desired signal.This s vector is made up of all signals, and wherein, this receiver has the information that spreading codes uses.This is to use (for example: install employed control channel, multiple data channel by this), notify that yard to use, search code space and find them or above-mentioned these possible combinations via network because this receiver is known that sign indicating number.
Any remaining coded signal in this set just can not be regarded as noise, its be included in n in.In some cases, the amount of interference of desiring to be removed may be less than the set of available codes, and this just may take place when error rate influenced to some extent to being not enough to when the specific coding of find to produce disturb forming is low.Another is if comprise all known coded, can need the extra time to handle this set with the reason that it is considered as noise.Similarly, appoint and the coding that is not included in this s will can assert when passing to the symbol substitution device that it is that extra noise is formed.
According to the indivedual received signals of check, can find out that it is the linear summation of all crossfires that transmit, the matrix letter formula of all signals can be written as y=Wx=WAs+Wn=WAs+n ' again.
This hybrid matrix is to form according to the composite signal of this receiver respectively, wherein, and the diagonal angle line element correspondence desired signal of this hybrid matrix, and adjacent to just corresponding institute of cornerwise unit unwanted signal.Then handle this hybrid matrix so that increase the grade of desired signal and reduce the grade of institute's undesired signal.
Handling this hybrid matrix can carry out according to known signal Processing, similarly is: (ZF) program that makes zero or minimum mean squared estimation program (MMSE).Perhaps, can handle this hybrid matrix according to the blind signal separable programming, three general technology that belong to the blind signal separable programming commonly used are: main composition analysis (PCA), independent composition analysis (ICA) and svd (SVD).Have a key element to be, because known desired signal that respectively should row, so this signal do not carry out classical signal and separate, and is anti-, and this signal Processing is organized in this separation signal in this channel respectively.Substantial Signal Separation basis in this receiver goes spreading codes performed.
Description of drawings
Figure 1 shows that according to exhibition frequency communication system calcspar of the present invention;
Figure 2 shows that detailed block diagram at the exhibition frequency receiving terminal of communication system of Fig. 1;
Figure 3 shows that detailed block diagram according to another embodiment of exhibition frequency receiving terminal of communication system of the present invention;
Figure 4 shows that detailed block diagram according to the another embodiment of exhibition frequency receiving terminal of communication system of the present invention;
Figure 5 shows that it is according to the array deflection running according to exhibition of the present invention receiving terminal of communication system calcspar frequently, with unlike signal summation that desired signal and non-required signal are provided to carry out signal Processing; And
Figure 6 shows that it is according to the routing running according to exhibition of the present invention receiving terminal of communication system calcspar frequently, with unlike signal summation that desired signal and non-required signal are provided to carry out signal Processing.
Embodiment
The present invention is now with reference to the graphic more detailed description of doing, and shows better embodiment of the present invention.Yet the present invention will be with many multi-form enforcements, and are not limited in the embodiment that this paper proposes.Anti-, provide these embodiments can thoroughly disclosing fully, and protection scope of the present invention is conveyed to the personage who has the knack of this skill fully.In full, the similar identical assembly of number representative.
Please refer to Fig. 1, exhibition communication system 10 calcspars frequently will at first be discussed at this.This communication system 10 comprises an exhibition transmitter combinations 20 and spread spectrum receiver combination 40 frequently.In this transmitter combinations 20, a modulator 22 receives input data 24 and a channel code.
This channel code is provided by channel code emission generator 26, and each channel all has its unique channel code.This channel code is carried out with a data transfer rate higher than the data transfer rate of input data, so that this modulation exhibition frequency output signal 30 takies the frequency range bigger than the fundamental frequency information frequency range of this signal.
Frequently output signal 30 is via an antenna array 50 emissions in this exhibition, and this antenna array 50 is connected with this transmitter combinations 20, and is received by an antenna array 60, and this antenna array 60 is connected with this receiver combination 40.This antenna array 50,60 is not defined in specific configuration mode, and can comprise more than one antenna module 52 (1)-52 (N) in the emission array, also can comprise more than one antenna module 62 (1)-62 (N) in receiving array.Although shown in the antenna module number in array 50,60 is identical, it also can be looked closely specific embodiment and be different.
Except receiving required spread spectrum signal 30, also can receive the signal of not wanted, institute's unwanted signal can cause channel distortion or can cause the sequential defective that mixes, and it then can reduce the orthogonality of signal.
In receiver combination 40 one go to launch and 44 decisions of combiner square by this required spread spectrum signals of a demodulator 47 modulation, this goes to launch and combiner square 44 comprises a correlator 45 and a receive channel sign indicating number generator 46 to produce a channel code, and it is identical transmitting and receiving channel code generator 26,46 channel code that produced individually by this.Behind rectification, this desired signal by a code translator 48 decodings to produce output data 49.
Fig. 2 provides more detailed receiver to make up 40 calcspars, shown receiver combination 40 comprises a plurality of harrow shaped receivers (Rake receiver) 100 (1)-100 (k), wherein, respectively this harrow shaped receiver comprises f finger 102, in order to the different multi-path composition of f of required and institute's undesired signal of selecting to be received.A harrow shaped receiver will be with reference symbol 100 general designations.In the illustrated embodiment, the f=3 of this harrow shaped receiver 100 respectively, but certain number of its finger 102 but can be different, and under the same overall receiver architecture, the finger number in each entity also can be different.In the place of using harrow shaped receiver 100, also can use the standard receiver.
Aspect this harrow shaped receiver 100 respectively, respectively this finger 102 comprises a correlator 45, and it is connected to a channel code generator 46.This channel code generator 46 produces a channel code, and its news frame with different time postpones, and should postpone to be determined by a delay equalizer 104.As the part of associated program, this receive channel sign indicating number is by a chip fragment-delay, so that seek a coupling of corresponding send channel sign indicating number with this in this received signal.
When the output of this matched filter 108 provided a crest 106, this correlator 45 was just found about discerning a coupling of this desired signal.Respectively this harrow shaped receiver 100 has a channel code of comparing the uniqueness that seems with the channel code of other harrow shaped receiver, the respectively corresponding different channel of this channel code.For instance, may have more than one voice channel, and more than one data channel.
The output of this correlator 45 can be divided into I and Q composition, although it is inessential, but this I and Q composition can provide the resolution of desired signal and non-required signal to increase, then input to a phase rotation device 110, one channel estimators 112 from this I of this correlator 45 and Q composition the estimation of this channel is inputed to this phase rotation device 110.
At these harrow shaped receiver 100 reception periods, this I and Q composition rotate in frequency spectrum, this I and Q composition are raw data, even and if this raw data may be unknown, but this phase rotation device 110 still can rotate back to it position before its rotation, and this rotation is according to known and a trained sequence in these data.
The output of this phase rotation device 110 inputs to this delay equalizer 104.In this harrow shaped receiver 100 respectively, three different delays are arranged, respectively this finger 102 respectively has one.Which kind of 104 decisions of this delay equalizer are from the delay between the signal of this finger 102 respectively, in case indivedual delay determine after, this signal just can be adjusted in view of the above, so that they can do combination.
Remain the part of this harrow shaped receiver 100, from respectively this I and the Q composition of this finger 102 are combined.To produce a combination I composition, similarly, this Q composition is made up to produce the Q composition of a combination, the addition in a totalizer 118 of this I and Q composition by different combiners this I composition by a combiner 114 combinations.
This program will respectively repeat in this harrow shaped receiver 100, input in the signal processor 130 from the output of this totalizer 118 respectively.This signal processor 130 comprises a hybrid matrix module 132, this hybrid matrix module 132 determines a hybrid matrix according to the composite signal that is provided by this harrow shaped receiver 100 respectively, each row of this hybrid matrix have a main signal and more than one non-main signal, this non-main signal is non-required signal or noise, the desired signal of the corresponding particular channel of main signal in each row.
This hybrid matrix is handled by a hybrid matrix processing module 134, so that in each row of this matrix, this desired signal grade promotes and the grade decline of this non-required signal.In other words, the noise lower limit of this hybrid matrix can reduce because of energy is moved to diagonal line by off-diagonal.Need this desired signal of rectification then to select streams module 136 to select by one, channel 1 all may be selected with rectification to channel K.
As mentioned above, this hybrid matrix module 132, this hybrid matrix signal processing module 134 and this selection streams module 136 all may be implemented in this signal processor 130.A key factor is to be, this processor 130 is not only to carry out traditional Signal Separation, respectively be somebody's turn to do the desired signal of row just as our known separation, anti-, separation signal is known in this signal processor arrangement respectively this channel, in fact, Signal Separation basis in this harrow shaped receiver 100 goes spreading codes to carry out.
If there is not signal processor 130, this received signal will need a large amount of error-correcting codes, know noise grade so that overcome non-required signal, dividing comes sees, possible neither one disturbs and deserves to be called significantly, but lumps together, it just can reduce the signal noise ratio of this desired signal significantly, therefore, in this desired signal, transmit a large amount of error-correcting codes, will reduce the overall efficiency of data transfer rate.
This hybrid matrix signal Processing can be carried out according to a known signal program, similarly is (ZF) program that makes zero or minimum mean squared estimation (MMSE) program.Perhaps, this hybrid matrix signal Processing can be according to a blind signal separable programming, and three kinds of common technique that belong to the blind signal separation are respectively: main composition analysis (PCA), independent composition analysis (ICA) and svd (SVD).
As long as it is independent on some measurement features by this required and non-required signal that this antenna array 60 that is connected to this harrow shaped receiver 100 is received, if and the mutual linearity of these signal summations is independently talked about, then just can use wherein one or more technology in these signal processing technologies, with the desired signal part of the mixing that strengthens this desired signal and non-required signal.This measurement features is generally some combination of first, second, third, fourth energy rate of this signal.
According to select the selected signal of streams module 136 by this, this demodulator 47 is the selected desired signal of rectification just, the output of this demodulator 47 also provides information to adjust coding module 140 to one, this adjustment coding module 140 provides and feeds back to this transmitter 20, and this transmitter 20 will be adjusted the error recovery number of codes that transfers to this receiver.If this signal processor 130 improves signal noise ratio in this hybrid matrix, then this transmitter 20 just can reduce and transfers to this receiver 40 with the quantity as this error-correcting code of a desired data part, and this can make the overall data rate benefit of this desired signal increase.Another mode or be that this transmitter can change this expansion factor, this data transfer rate, modulation format or any other device about the robustness of the final decoding of this signal crossfire with mode that aforesaid way is used in combination.
The dimension of this hybrid matrix of this receiver combination 40 illustrated in fig. 2 is less than or equal to the quantity of channel code.Concerning harrow shaped receiver, k channel arranged, wherein, respectively this channel has the channel code of a uniqueness.
Figure 3 shows that the embodiment of this receiver combination 40 '.Respectively these indivedual combiners 114 ', 116 ' of this rake dress receiver 100 ' had been revised, and were not in the same place so that this combination I of required and non-required number can not added by this totalizer 118 as shown in Figure 2 with the Q composition.Anti-, this combination I can be regarded as two entities that separate with the Q composition and send in this hybrid matrix module 132 ' to determine this hybrid matrix.Finally, the dimension of this hybrid matrix can be less than or equal to the twice of this channel code quantity.
In addition, this selects the output of streams module 136 ', can be before by this demodulator 47 ' rectification, and via an other totalizer 139 ' of this channel respectively this I is added with the Q composition and to be in the same place.
Fig. 4 provides this receiver combination 40 " another embodiment.This embodiment is similar to the illustrated receiver combination 40 ' of Fig. 3, except this harrow shaped receiver 100 respectively " indivedual combiners 114 ", 116 " done the correction; make by this device according to this finger 102 respectively " I and the Q composition that are provided export, finally, the dimension of this hybrid matrix can be less than or equal to the twice that this finger f quantity is multiplied by this channel code quantity.
In other words, all I keep separating to determine this hybrid matrix with the Q composition.If all required and non-required signals are all very strong, just this hybrid matrix module 132 ' can be set up this hybrid matrix easily.Under actual conditions, some I and Q composition are preferably combined, and be total, from selecting combiner 114 " and 116 " I or the quantity of Q value, can fail really I and Q wherein one, or both.
In addition, this selection streams module 136 " output this I and Q composition are inputed to a respectively other combiner 137 of this channel ", 138 ".Respectively this channel has a totalizer 139 " so that at this demodulator 47 " rectification before, will add with the Q composition with this I that respectively this channel is relevant and be in the same place.
As the details of being discussed for the 11/232nd, No. 500 in U.S. patent application case, it is acted on behalf of by procurator of the present invention, and is incorporated in herein in the reference paper mode, in this case, uses different technology can increase the dimension of this hybrid matrix.These technology comprise different antenna array configuration modes, to produce more than one antenna patterns illustrated, to receive different summations required and non-required signal.Other technology comprises increase or replaces this summation required and non-required signal, further to determine this hybrid matrix.These technology are with reference to Fig. 5 and Fig. 6 discussion.
Receiving antenna array 60 has several different embodiments.In one embodiment, N antenna module 62 can be interrelated to form a phase place array.In another embodiment, N antenna module 62 can comprise at least one active antenna and up to N-1 passive antenna element, switch beam antenna to form one.In addition, the polarity association that at least two N antenna modules can be different.
This receiving antenna array 60 therefore can be received should be required with the different summations of non-signal on have the multiple effect, by increasing the dimension of this hybrid matrix, this desired signal has bigger chance can be by these signal processor 130 enhancings.
Other technology is discussed now, and it preferably can make the dimension of this hybrid matrix increase, and does not need to be increased in the quantity of N antenna module 62 in this receiving antenna array 60.
The multiple effect of the different summation quantity that received of this required and non-required signal can be finished by following one or its combination wherein.Array deflection can involve the height of this antenna patterns illustrated, to receive this extra summation required and non-required signal.Also but execution route is selected so that in order to determining all summations required and non-required signal of this hybrid matrix, can be related and/or statistics go up independently.
Fig. 5 provides the exhibition receiving end calcspar of communication system 10 frequently, and it operates according to array deflection, in order to different summations required and non-required signal to be provided.This receiving antenna array 260 comprises the N antenna module, begins antenna patterns illustrated in order to produce N, in order to receive the different summations of this required with non-required N.This receiving antenna array 260 also comprises a height controller 241, in order to optionally to change the height of at least one this beginning antenna patterns illustrated, in order to producing at least one additional antenna field pattern, make that at least this is required and non-requiredly come at least one extra different summations of source signal to receive thus.
This hybrid matrix has a dimension, its be less than or equal channel code quantity add use that this additional antenna field pattern received should be required and N times of the extra different summations of non-required signal.
Fig. 6 provides the exhibition receiving end calcspar of communication system 10 frequently, and it operates according to routing, in order to different summations required and non-required signal to be provided.
This receiving antenna array 360 comprises N assembly 363, and in order to form N antenna beam at least, to receive the different summations of this required N with non-required signal, wherein, N is greater than 2.One controller 350 is connected to this antenna array 360, in order to optionally to form this N antenna beam at least.
This signal processor 330 also judges that whether independent the different summations of this required and non-required signal go up for related or statistics, and if not, then cooperate to form the different antennae wave beam with this controller 350, in order to receiving this new different summations required and non-required signal, related or statistics is independently required and the different summations of non-required signal to be substituted in the hybrid matrix.
Although feature of the present invention and assembly are all described in the particular combinations mode in embodiment, but each feature or assembly can use alone among the embodiment, and do not need further feature or combination of components with better embodiment, or with/do not do different combinations with further feature of the present invention and assembly.Although the present invention has seen through preferred embodiment and described, other is the modification of desorption the present patent application claim not, and is conspicuous concerning the personage who has the knack of this skill.
Claims (26)
1. open up communication system frequently for one kind, it comprises:
One antenna array, it comprises the N antenna module, in order to receive different summations required and non-required signal, wherein, N 〉=1;
A plurality of receivers, itself and this antenna array is coupled, and respectively this receiver operates according to a separate channel sign indicating number, in order to
Remove to launch this required and non-required signal, determining at least one desired signal relevant with this separate channel sign indicating number, and
Remove to launch back this at least one desired signal of combination and this non-required signal at this;
One processor, itself and these a plurality of receiver couplings, in order to
According to forming a hybrid matrix from this composite signal of this receiver respectively, wherein, the unit on the diagonal line of this hybrid matrix is to should desired signal, is adjacent to this cornerwise unit then to should non-required signal, and
This hybrid matrix of this processor processing makes a grade of this desired signal increase and the grade reduction of this non-required signal; And
One demodulator, itself and this processor is coupled, in order at least one desired signal of rectification.
2. exhibition according to claim 1 is communication system frequently, it is characterized in that the X channel code is relevant with these a plurality of receivers; And wherein, a dimension of this hybrid matrix is≤X, wherein, and X 〉=2.
3. exhibition according to claim 1 is communication system frequently, it is characterized in that in each receiver, this goes spreader to comprise this at least one desired signal and this non-required signal are divided into I and Q composition, and this combination be included in that this hybrid matrix forms before, this I added with the Q composition is in the same place.
4. exhibition according to claim 1 is communication system frequently, it is characterized in that, this demodulator determines an error rate of this at least one desired signal behind rectification, this error rate makes that in order to as this at least one desired signal of feedback one transmitter emission the feature that newly transmits can be according to the error rate adjustment of this decision.
5. exhibition according to claim 4 is communication system frequently, it is characterized in that, this feature that newly transmits of desire adjustment comprise following at least wherein one: error detection coding, data transfer rate, modulation format and launch the factor.
6. exhibition according to claim 1 is communication system frequently, it is characterized in that the X channel code is relevant with these a plurality of receivers; Wherein, N 〉=2 make at least one linear summation that each antenna module in this antenna array provides this required and non-required signal to these a plurality of receivers, make the one dimension≤N*X of this hybrid matrix.
7. exhibition according to claim 6 is communication system frequently, it is characterized in that this N antenna module comprises the N active antenna, makes this antenna array form a phase place array.
8. exhibition according to claim 6 is communication system frequently, it is characterized in that, this N antenna module comprises at least one active antenna and up to the N-1 passive antenna element, switches beam antenna in order to form one.
9. exhibition according to claim 6 is communication system frequently, it is characterized in that this N antenna module comprises at least two associated antenna assemblies, and it has different polarity.
10. exhibition according to claim 1 is communication system frequently, it is characterized in that the X channel code is relevant with these a plurality of receivers;
Wherein this antenna array produces N initial antenna field pattern, in order to receive the different summations of this required N with non-required signal, this antenna array comprises a height controller, in order to optionally to change a height of at least one this N initial antenna field pattern, to produce at least one additional antenna field pattern, make to receive this at least one extra different summations required and non-required signal by this; And
This hybrid matrix has a dimension≤[N*X+ (quantity of the required extra different summations with non-required signal of this that uses that this additional antenna field pattern received)].
11. exhibition according to claim 1 is communication system frequently, it is characterized in that this antenna array forms N antenna beam at least, in order to receive this different summations of N at least required and non-required signal, wherein, N is greater than 2; More comprise a controller, itself and this antenna array is coupled, in order to optionally to form this N antenna beam at least; And wherein, this processor also
It is independent to judge that whether related the different summations of this required and non-required signal or statistics go up, and if not,
Then with this controller cooperation forming the different antennae wave beam, in order to receiving this new different summations required and non-required signal, related or add up independently these different summations required and non-required signal to be substituted in this hybrid matrix.
12. exhibition according to claim 1 is communication system frequently, it is characterized in that, this processor according to following at least wherein one handle this hybrid matrix: Main Ingredients and Appearance is analyzed PCA, independent component is analyzed ICA and svd SVD.
13. exhibition according to claim 1 is communication system frequently, it is characterized in that, this processor according to following at least wherein one handle this hybrid matrix: make zero a ZF program and a minimum mean squared estimation MMSE program.
14. an exhibition frequency communication system, it comprises:
One antenna array, it comprises the N antenna module, in order to receive required and non-required signal, wherein, N 〉=1;
At least one harrow shaped receiver, itself and this antenna array coupling, and comprise finger up to f, in order to select this reception required with non-required signal up to the different multi-path compositions of f, f 〉=2 wherein,
Each harrow shaped receiver operates according to a separate channel sign indicating number, makes each finger carry out following action:
Remove to launch this required and non-required signal, in order to determining at least one desired signal relevant with this separate channel sign indicating number, and
Should be divided into I and Q composition by at least one required and non-required signal; And
One processor, itself and this at least one harrow shaped receiver coupling,
In order to form a hybrid matrix according to this I and Q composition, wherein, the unit on the diagonal line of this hybrid matrix is to I and Q composition that should desired signal, and is adjacent to this cornerwise unit to I and Q composition that should non-required signal,
This processor is also handled this hybrid matrix, makes the I of this desired signal and a grade of Q composition increase and the grade reduction of this non-required signal I and Q composition, and
And make up the I and the Q composition of at least one desired signal; And
One demodulator, itself and this processor is coupled, in order to this at least one desired signal of rectification.
15. exhibition according to claim 14 is communication system frequently, it is characterized in that the X channel code is relevant with this at least one harrow shaped receiver, wherein, and X 〉=1; Wherein, after this removes to be launched into a single I composition, make up, and after this removes to be launched into a single Q composition, make up from these indivedual Q compositions that this f of each harrow shaped receiver points from this indivedual I compositions of this f finger of each harrow shaped receiver; And wherein, one dimension of this hybrid matrix≤2*X.
16. exhibition according to claim 14 is communication system frequently, it is characterized in that the X channel code is relevant with this at least one harrow shaped receiver, wherein, and X 〉=1; Wherein, these indivedual I compositions from this f finger of each harrow shaped receiver offer this processor, in order to unit being separated into this mixed matrix, and offer this processor, in order to unit is separated into this mixed matrix from these indivedual Q compositions of this f finger of each harrow shaped receiver; And wherein, one dimension of this hybrid matrix≤2*f*X.
17. exhibition according to claim 14 is communication system frequently, it is characterized in that, this demodulator determines an error rate of this at least one desired signal behind rectification, this error rate makes that in order to as this at least one desired signal of feedback one transmitter emission the feature that newly transmits can be according to the error rate adjustment of this decision.
18. exhibition according to claim 17 is communication system frequently, it is characterized in that, this feature that newly transmits of desire adjustment comprise following at least wherein one: error detection coding, data transfer rate, modulation format and launch the factor.
19. exhibition according to claim 14 is communication system frequently, it is characterized in that the X channel code is relevant with at least one harrow shaped receiver; Wherein, N 〉=2 make at least one linear summation that in this antenna array each antenna module provides this required and non-required signal to this at least one harrow shaped receiver, make the one dimension≤N*X of this hybrid matrix.
20. exhibition according to claim 19 is communication system frequently, it is characterized in that this N antenna module comprises the N active antenna, makes this antenna array form a phase place array.
21. exhibition according to claim 19 is communication system frequently, it is characterized in that, this N antenna module comprises at least one active antenna and up to the N-1 passive antenna element, switches beam antenna in order to form one.
22. exhibition according to claim 19 is communication system frequently, it is characterized in that this N antenna module comprises at least two associated antenna assemblies, it has different polarity.
23. exhibition according to claim 14 is communication system frequently, it is characterized in that the X channel code is relevant with this at least one harrow shaped receiver;
Wherein this antenna array produces N initial antenna field pattern, in order to receive the different summations of this required N with non-required signal, this antenna array comprises a height controller, in order to optionally to change a height of at least one this N initial antenna field pattern, to produce at least one additional antenna field pattern, make to receive this at least one extra different summations required and non-required signal by this;
This hybrid matrix has a dimension≤[N*X+ (quantity of the required extra different summations with non-required signal of this that uses that this additional antenna field pattern received)].
24. exhibition according to claim 14 is communication system frequently, it is characterized in that this antenna array forms N antenna beam at least, in order to receive this different summations of N at least required and non-required signal, wherein, N is greater than 2; This antenna array comprises a controller, in order to optionally to form this N antenna beam at least;
And wherein, it is independent that this processor also judges that whether related the different summations of this required and non-required signal or statistics go up, and if not,
Then with this controller cooperation forming the different antennae wave beam, in order to receiving this new different summations required and non-required signal, related or add up independently these different summations required and non-required signal to be substituted in this hybrid matrix.
25. exhibition according to claim 14 is communication system frequently, it is characterized in that, this processor according to following at least wherein one handle this hybrid matrix: Main Ingredients and Appearance is analyzed PCA, independent component is analyzed ICA and svd SVD.
26. exhibition according to claim 14 is communication system frequently, it is characterized in that, this processor according to following at least wherein one handle this hybrid matrix: make zero a ZF program and a minimum mean squared estimation MMSE program.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US65160605P | 2005-02-10 | 2005-02-10 | |
| US60/651,606 | 2005-02-10 | ||
| US11/333,011 | 2006-01-17 |
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| Publication Number | Publication Date |
|---|---|
| CN101238458A CN101238458A (en) | 2008-08-06 |
| CN100568220C true CN100568220C (en) | 2009-12-09 |
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| CNB2006800044198A Expired - Fee Related CN100568220C (en) | 2005-02-10 | 2006-02-08 | Exhibition is communication system frequently |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102215048A (en) * | 2011-07-27 | 2011-10-12 | 中国人民解放军总参谋部第六十三研究所 | Receiving method and receiving device of spread spectrum signals |
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