CN101478368A - Processing method, terminal, base station for feedback information - Google Patents

Abstract

The invention provides a feedback message processing method, a terminal and a base station. The feedback message processing method is applied to a terminal for processing a plurality of feedback messages that are returned from the terminal to the base station, wherein one feedback message is in correspondence to one primary modulation symbol. The feedback message processing method comprises: a plurality of primary modulation symbols are pre-processed to obtain a plurality of target modulation symbols, wherein each target modulation symbol is related to the primary modulation symbols. The feedback message processing method improves the accuracy in detecting the acknowledgment/negative acknowledgment (ACK/NACK) messages carried by the physical unlink control channel (UCCH), improves the transmission quality of the PUCCH, avoids the repetitive data transmission, and ensures that the terminal can accurately receive the data.

Description

The processing method of feedback information, terminal, base station

Technical field

The present invention relates to the communications field, in particular to a kind of processing method, terminal, base station of feedback information.

Background technology

At senior international mobile communication (International MobileTelecommunications-Advanced, abbreviate IMT-Advanced as) in the system, can realize the high-speed transfer of data, and has a bigger power system capacity, under the situation about move at low speed, focus covering, the peak rate of IMT-Advanced system can reach 1Gbit/s, and under the situation that high-speed mobile, wide area cover, the peak rate of IMT-Advanced system can reach 100Mbit/s.

In order to satisfy (the International TelecommunicationUnion-Advanced of senior International Telecommunications Union, abbreviate ITU-Advanced as) requirement, as Long Term Evolution (Long Term Evolution, abbreviate LTE as) senior Long Term Evolution (the Long Term Evolution Advanced of evolution standard, abbreviating LTE-Advanced as) system need support bigger system bandwidth (reaching as high as 100MHz), and need the existing standard of backward compatibility LTE.On the basis of prior LTE system, the bandwidth of LTE system can be merged and obtain bigger bandwidth, this technology is called carrier aggregation (carrieraggregation, abbreviate CA as) technology, the availability of frequency spectrum, alleviation frequency spectrum resource that this technology can improve the IMT-Advance system are in short supply, and then optimize the utilization of frequency spectrum resource.

After the LTE-Advance system adopted carrier aggregation technology, the upstream bandwidth of system and downlink bandwidth all can comprise a plurality of component carriers (component carrier).When carrying out descending dynamic dispatching, the base station can be user terminal (User Equipment, abbreviate UE as) distribute a plurality of downlink component carriers, to be used for the transmission of Physical Downlink Shared Channel (Physical DownlinkShared Channel abbreviates PDSCH as).UE is after detecting PDSCH, can mix automatic repeat requests (Hybrid Automatic Repeat Request to base station feedback, abbreviating HARQ as) control information (is ACK (Acknowledgement)/NACK (Negative Acknowledgement), affirmation/non-acknowledge message), particularly, UE can pass through Physical Uplink Shared Channel (Physical Uplink Shared Channel, abbreviate PUSCH as) or Physical Uplink Control Channel (Physical uplink control channel abbreviates PUCCH as) these control informations (can be called feedback information) are returned to the base station.

Fig. 1 is the schematic diagram that returns feedback information on a plurality of PUCCH according to correlation technique, as shown in Figure 1, in order to keep the compatibility with LTE, UE feeds back the feedback information (promptly to the HARQ of base station feedback control information) of the PDSCH of a plurality of downlink component carriers respectively on the PUCCH of a plurality of upstream components carrier waves, that is to say, the uplink feedback information of the PDSCH correspondence of different downlink component carriers feeds back on the PUCCH of different upstream components carrier waves respectively.

At present, the base station is subjected to the influence of following factor to the detection of ACK/NACK message: the particular location of the PUCCH channel of the frequency of ACK/NACK message place upstream components carrier wave, system bandwidth, transmission ACK/NACK.In addition, adopt fixing modulation system owing to send the PUCCH channel of ACK/NACK, therefore, when the signal to noise ratio of PUCCH channel was higher, system can't adopt high order modulation to improve power system capacity to this PUCCH information; When the signal to noise ratio of PUCCH channel is hanged down, if system to ACK/NACK message detection mistake, can cause bigger influence to systematic function, promptly, if what terminal sent is ACK message, but through behind the channel, the base station is detected and is NACK message, can cause unnecessary the repeating of data to send, if what terminal sent is NACK message, but through behind the channel, the base station is detected to ACK information, can cause UE not receive correct data.

Because the channel condition of each upstream components carrier wave is unbalanced, the base station mistake can occur to the detection of the ACK/NACK message of PUCCH carrying, has reduced the transmission quality of PUCCH channel, cause data repeat send or terminal does not receive correct data.

Summary of the invention

Unbalanced at above-mentioned channel condition owing to each upstream components carrier wave, the base station mistake can occur to the detection of the ACK/NACK message of PUCCH carrying, reduced the transmission quality of PUCCH channel, cause data repeat send or the base station does not receive the problem of correct data and proposes the present invention, for this reason, the present invention aims to provide a kind of processing scheme of improved feedback information, one of to address the above problem at least.

To achieve these goals, according to an aspect of the present invention, provide a kind of processing method of feedback information, be used for terminal a plurality of feedback informations that it returns to the base station are handled, wherein, the corresponding source modulation symbol of feedback information.

Processing method according to feedback information of the present invention comprises: the multiple source modulation symbol is carried out preliminary treatment, obtain a plurality of target modulation symbols, wherein, each target modulation symbol is all relevant with the multiple source modulation symbol.

Wherein, preliminary treatment comprises: orthogonal processing or pseudo-orthogonal processing.

Above-mentionedly obtain a plurality of target modulation symbols, can realize by following formula by preliminary treatment, that is, and (X ₀, X ₁... X _N-1) ^T=M (x ₀, x ₁... x _N-1) ^T, wherein, M is a transformation matrix, x ₀, x ₁... x _N-1Be the multiple source modulation symbol; X ₀, X ₁... X _N-1Be x ₀, x ₁... x _N-1Corresponding a plurality of target modulation symbols, N is the natural number more than or equal to 1, () ^TThe expression transpose process.

Above-mentioned transformation matrix satisfies: in the transformation matrix at least delegation two nonzero elements are arranged.

Preferably, above-mentioned transformation matrix also satisfies: the mould of all elements equates in the transformation matrix.

And transformation matrix can comprise: the transformation matrix that the cyclic shift of ZC sequence is formed.

It is one of following that above-mentioned orthogonal processing or pseudo-orthogonal processing comprise: Fourier transform, inverse Fourier transform, Walsh conversion.

After obtaining a plurality of target modulation symbols, terminal is carried on a plurality of target modulation symbols respectively on the corresponding channel and sends to the base station.Then, the contrary processing carried out to a plurality of target modulation symbols that receive in the base station, and to obtain the source modulation symbol, wherein, contrary processing and preliminary treatment be inverse operation each other.

To achieve these goals, according to a further aspect in the invention, provide a kind of processing method of feedback information, be used for a plurality of target modulation symbols that a plurality of feedback information correspondences of self terminal are handled in the base station.

Processing method according to feedback information of the present invention comprises: handle a plurality of target modulation symbols that receive the base station, obtain the multiple source modulation symbol, wherein, each target modulation symbol is all relevant with the multiple source modulation symbol, and a source modulation symbol is corresponding to a feedback information.

Above-mentioned base station comprises the processing of a plurality of target modulation symbols of receiving: orthogonal processing or pseudo-orthogonal processing.

To achieve these goals, according to another aspect of the invention, provide a kind of terminal, comprised being used to modulate feedback information to obtain first modulation module of source modulation symbol.

Terminal according to the present invention also comprises: second modulation module, be used for the multiple source modulation symbol that first modulation module generates is carried out preliminary treatment, and obtain a plurality of target modulation symbols, wherein, each target modulation symbol is all relevant with the multiple source modulation symbol; Mapping block is used for a plurality of target modulation symbols that second modulation module generates are mapped to a plurality of channels respectively; Sending module, each the target modulation symbol that is used for second modulation module is generated sends to the base station on the channel of corresponding mapping block mapping.

Wherein, above-mentioned preliminary treatment comprises: orthogonal processing or pseudo-orthogonal processing.

To achieve these goals, according to another aspect of the invention, provide a kind of base station, comprised the receiver module of a plurality of target modulation symbols of a plurality of feedback information correspondences that are used to receive self terminal.

Base station according to the present invention also comprises: first demodulation module, be used for a plurality of target modulation symbols that receiver module receives are handled, obtain the multiple source modulation symbol, wherein, each target modulation symbol is all relevant with the multiple source modulation symbol, and a source modulation symbol is corresponding to a feedback information; Second demodulation module is used for the multiple source modulation symbol that first demodulation module generates is handled, and obtains a plurality of feedback informations.

Wherein, the processing of above-mentioned first demodulation module comprises: orthogonal processing or pseudo-orthogonal processing.

By means of technique scheme one of at least, the present invention carries out preliminary treatment by the modulation symbol to the feedback information correspondence, make the modulation symbol of each feedback information correspondence all be carried on each PUCCH channel, the system that makes has the same detection performance to different PUCCH channels, than prior art, can improve the base station to the accuracy of the detection of the ACK/NACK message of PUCCH carrying and the transmission quality of PUCCH channel, can avoid the transmission that repeats of data, terminal can accurately receive data.

Description of drawings

Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:

Fig. 1 is the schematic diagram that returns feedback information on a plurality of PUCCH according to correlation technique;

Fig. 2 is the schematic flow sheet according to the processing method of the feedback information of the embodiment of the invention;

Fig. 3 is the block diagram according to the terminal of the embodiment of the invention;

Fig. 4 is the block diagram according to the base station of the embodiment of the invention.

Embodiment

Functional overview

As mentioned above, a plurality of feedback information of the prior art (being ACK message or NACK message) generates a plurality of modulation intelligences after ovennodulation, on the PUCCH of correspondence channel, feed back respectively, but, because the channel quality difference of each PUCCH channel, make the base station also different to detection performance at each modulation intelligence of each PUCCH channel bearing, can cause the base station that mistake is appearred in the detection of the ACK/NACK message of PUCCH carrying, reduce the transmission quality of PUCCH channel, make correctly to communicate between base station and the terminal, thereby influence the overall performance of system.

Based on this, the invention provides a kind of processing scheme of improved feedback information, to the modulation symbol of feedback information correspondence (promptly, modulation intelligence mentioned above) carries out preliminary treatment, make the modulation symbol of each feedback information correspondence all be carried on each PUCCH channel, and sending to the base station, corresponding contrary the processing carried out to carrying out pretreated modulation symbol in the base station, to recover a plurality of modulation symbols.Like this, on each PUCCH channel a plurality of modulation symbols are arranged all, the balanced channel quality of each PUCCH channel improves the transmission quality of PUCCH, and then improves the overall performance of system.

For the ease of understanding the embodiment of the invention, before the explanation embodiment of the invention, at first terminal is described to the principle that the base station sends feedback information.

Terminal (UE) feedback N feedback information (being ACK/NACK message), at first this N feedback information is carried out modulation treatment, wherein, modulation system can be BPSK or QPSK etc., generate N uplink ACK/NACK modulation symbol, this N uplink ACK/NACK modulation symbol is respectively by N different PUCCH channel feedback.Wherein, each PUCCH channel can be carried on the same upstream components carrier wave, also can be carried on the different upstream components carrier waves, even on same upstream components carrier wave, also can be owing to the different imbalances that cause each PUCCH channel of the frequency location of each PUCCH channel.

Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the present invention in detail.Need to prove that if do not conflict, embodiment and the feature among the embodiment among the application can make up mutually.

Method embodiment one

According to the embodiment of the invention, a kind of processing method of feedback information is provided, being used for terminal handles a plurality of feedback informations that it returns to the base station, wherein, the corresponding source modulation symbol of feedback information, this method comprises: the multiple source modulation symbol is carried out preliminary treatment, obtain a plurality of target modulation symbols, wherein, each target modulation symbol is all relevant with the multiple source modulation symbol.Wherein, above-mentioned preliminary treatment can be orthogonal processing or pseudo-orthogonal processing.

In specific implementation process, can carry out preliminary treatment to the source modulation symbol by following formula, obtain a plurality of target modulation symbols: (X ₀, X ₁... X _N-1) ^T=M (x ₀, x ₁... x _N-1) ^T, wherein, M is a transformation matrix, x ₀, x ₁... x _N-1Be multiple source modulation symbol, X ₀, X ₁... X _N-1Be x ₀, x ₁... x _N-1Corresponding a plurality of target modulation symbols, N also equals to send the number of this N the shared channel of modulation symbol for needing the number of the modulation symbol of transmission simultaneously, and the value of N is the natural number more than or equal to 1, () ^TThe expression transpose process.Wherein, in the above-mentioned transform matrix M at least delegation two nonzero elements are arranged.Preferably, the mould of all elements can equate in the transform matrix M, and for example, the mould value of all elements all equals 1 among the M.

Be described in detail below in conjunction with 2 pairs of embodiment of the invention of accompanying drawing, Fig. 2 is the detail flowchart according to the processing method of the feedback information of the embodiment of the invention, and as shown in Figure 2, this processing method comprises the steps (step 202-step 206):

Step 202, terminal is to base station feedback N ACK/NACK message, and terminal is at first modulated N ACK/NACK message, obtains N ACK/NACK modulation symbol (above-mentioned source modulation symbol), and this N ACK/NACK modulation symbol vector representation is: x ₀, x ₁... x _N-1, correspondingly, this N ACK/NACK modulation symbol carried by N PUCCH channel respectively, that is to say, and the call number of carrying the PUCCH channel of this N ACK/NACK modulation symbol is 0,1,2 ...., N-1;

Step 204 is carried out preliminary treatment to this N ACK/NACK modulation symbol, promptly to (x ₀, x ₁... x _N-1) ^TCarry out preliminary treatment, obtain vector (X ₀, X ₁... X _N-1) ^T(above-mentioned a plurality of target modulation symbols) wherein, can pass through formula (X ₀, X ₁... X _N-1) ^T=M (x ₀, x ₁... x _N-1) ^TObtain vector (X ₀, X ₁... X _N-1) ^T

Step 206, terminal concern according to predetermined mapped, will carry out pretreated modulation symbol and send by different upstream components carrier wave PUCCH channels respectively, for example: X ₀On the PUCCH channel of the 0th component carrier, send X ₁On the PUCCH channel of the 1st component carrier, send, and the like, with X ₀, X ₁... X _N-1Send to the base station.

Afterwards, the X of base station to receiving ₀, X ₁... X _N-1Carry out contrary the processing, to obtain (x ₀, x ₁... x _N-1) ^T, wherein, contrary processing in this step and the preliminary treatment in the step 104 be inverse operation each other.

Need to prove, for convenience of description, in Fig. 2, illustrated and described the technical scheme of method embodiment of the present invention, can in computer system, carry out such as a set of computer-executable instructions in the step shown in Fig. 2 with the form of step.Though figure 2 illustrates logical order, in some cases, can carry out step shown or that describe with the order that is different from herein.

By above description as can be seen, all comprised the source modulation symbol information that needs send in the target modulation symbol that carries out obtaining after the preliminary treatment.Like this, there is identical detection performance in the system that can guarantee to the source modulation symbol that sends simultaneously, in addition, because the information of each source modulation symbol sends, can obtain extra frequency diversity gain on a plurality of PUCCH channels, and then improves the overall performance of system.

Correspondingly, the base station need be carried out contrary accordingly the processing to the target modulation symbol that receives, and to obtain the source modulation symbol, the contrary processing here and the preliminary treatment of above-mentioned end side be inverse operation each other.Usually, because the ACK/NACK modulation symbol that terminal sends simultaneously can (generally not be no more than 5) too much, therefore, the complexity that realizes this processing method is lower, in addition, can select the transformation matrix of fast algorithm, for example, hadamard matrix, the transformation matrix that the cyclic shift of Fourier/inverse Fourier transform matrix, Walsh transformation matrix, ZC (Zadoff-Chu) sequence is formed etc. so just can further reduce the complexity of realization.

Be example with different transformation matrixs below, further describe the embodiment of the invention, wherein, the modulation symbol of supposing feedback message is N, is expressed as x respectively ₀, x ₁... x _N-1, be expressed as X through pretreated modulation symbol ₀, X ₁... X _N-1, need to prove that below row/the column number of the transformation matrix of Xuan Zeing equals the number of modulation symbol, at once/column number is N.

Embodiment 1

Fourier transform is adopted in the preliminary treatment of this example, and transformation matrix is a Fourier matrix, and wherein, fourier transform matrix is:

$T=\left[\begin{array}{ccccc}1& 1& 1& \&CenterDot;\&CenterDot;\&CenterDot;& 1\\ 1& e^{-\mathrm{<figure-callout\; id="2"\; label="j"\; filenames="A200910000196E00212.png"\; state="\{\{state\}\}">j</figure-callout>}\frac{2\mathrm{\&pi;}}{\mathrm{<figure-callout\; id="1"\; label="N"\; filenames="A200910000196E00212.png"\; state="\{\{state\}\}">N</figure-callout>}}1\&times;1}& e^{-\mathrm{<figure-callout\; id="2"\; label="j"\; filenames="A200910000196E00212.png"\; state="\{\{state\}\}">j</figure-callout>}\frac{2\mathrm{\&pi;}}{\mathrm{<figure-callout\; id="1"\; label="N"\; filenames="A200910000196E00212.png"\; state="\{\{state\}\}">N</figure-callout>}}1\&times;2}& \&CenterDot;\&CenterDot;\&CenterDot;& e^{-\mathrm{<figure-callout\; id="2"\; label="j"\; filenames="A200910000196E00212.png"\; state="\{\{state\}\}">j</figure-callout>}\frac{2\mathrm{\&pi;}}{\mathrm{<figure-callout\; id="1"\; label="N"\; filenames="A200910000196E00212.png"\; state="\{\{state\}\}">N</figure-callout>}}1\&times;(N-1)}\\ 1& e^{-\mathrm{<figure-callout\; id="2"\; label="j"\; filenames="A200910000196E00212.png"\; state="\{\{state\}\}">j</figure-callout>}\frac{2\mathrm{\&pi;}}{\mathrm{<figure-callout\; id="2"\; label="N"\; filenames="A200910000196E00212.png"\; state="\{\{state\}\}">N</figure-callout>}}2\&times;1}& e^{-\mathrm{<figure-callout\; id="2"\; label="j"\; filenames="A200910000196E00212.png"\; state="\{\{state\}\}">j</figure-callout>}\frac{2\mathrm{\&pi;}}{\mathrm{<figure-callout\; id="2"\; label="N"\; filenames="A200910000196E00212.png"\; state="\{\{state\}\}">N</figure-callout>}}2\&times;2}& \&CenterDot;\&CenterDot;\&CenterDot;& e^{-\mathrm{<figure-callout\; id="2"\; label="j"\; filenames="A200910000196E00212.png"\; state="\{\{state\}\}">j</figure-callout>}\frac{2\mathrm{\&pi;}}{\mathrm{<figure-callout\; id="2"\; label="N"\; filenames="A200910000196E00212.png"\; state="\{\{state\}\}">N</figure-callout>}}2\&times;(N-1)}\\ \&CenterDot;& \&CenterDot;& \&CenterDot;& \&CenterDot;& \&CenterDot;\\ \&CenterDot;& \&CenterDot;& \&CenterDot;& \&CenterDot;& \&CenterDot;\\ \&CenterDot;& \&CenterDot;& \&CenterDot;& \&CenterDot;& \&CenterDot;\\ 1& e^{-\mathrm{<figure-callout\; id="2"\; label="j"\; filenames="A200910000196E00212.png"\; state="\{\{state\}\}">j</figure-callout>}\frac{2\mathrm{\&pi;}}{N}(N-1)\&times;1}& e^{-\mathrm{<figure-callout\; id="2"\; label="j"\; filenames="A200910000196E00212.png"\; state="\{\{state\}\}">j</figure-callout>}\frac{2\mathrm{\&pi;}}{N}(N-1)\&times;2}& \&CenterDot;\&CenterDot;\&CenterDot;& e^{-\mathrm{<figure-callout\; id="2"\; label="j"\; filenames="A200910000196E00212.png"\; state="\{\{state\}\}">j</figure-callout>}\frac{2\mathrm{\&pi;}}{N}(N-1)\&times;(N-1)}\end{array}\right]$

With source modulation symbol x ₀, x ₁... x _N-1Through preliminary treatment, that is, and with source modulation symbol x ₀, x ₁... x _N-1Operate with Fourier matrix, obtain target modulation symbol X:

$X=\left[\begin{array}{c}{X}_0\\ X_1\\ {\mathrm{<figure-callout\; id="2"\; label="X"\; filenames="A200910000196E00212.png"\; state="\{\{state\}\}">X</figure-callout>}}_2\\ \&CenterDot;\\ \&CenterDot;\\ \&CenterDot;\\ X_{N-1}\end{array}\right]=\mathrm{Tx}=\left[\begin{array}{ccccc}1& 1& 1& \&CenterDot;\&CenterDot;\&CenterDot;& 1\\ 1& e^{-\mathrm{<figure-callout\; id="2"\; label="j"\; filenames="A200910000196E00212.png"\; state="\{\{state\}\}">j</figure-callout>}\frac{2\mathrm{\&pi;}}{\mathrm{<figure-callout\; id="1"\; label="N"\; filenames="A200910000196E00212.png"\; state="\{\{state\}\}">N</figure-callout>}}1\&times;1}& e^{-\mathrm{<figure-callout\; id="2"\; label="j"\; filenames="A200910000196E00212.png"\; state="\{\{state\}\}">j</figure-callout>}\frac{2\mathrm{\&pi;}}{\mathrm{<figure-callout\; id="1"\; label="N"\; filenames="A200910000196E00212.png"\; state="\{\{state\}\}">N</figure-callout>}}1\&times;2}& \&CenterDot;\&CenterDot;\&CenterDot;& e^{-\mathrm{<figure-callout\; id="2"\; label="j"\; filenames="A200910000196E00212.png"\; state="\{\{state\}\}">j</figure-callout>}\frac{2\mathrm{\&pi;}}{\mathrm{<figure-callout\; id="1"\; label="N"\; filenames="A200910000196E00212.png"\; state="\{\{state\}\}">N</figure-callout>}}1\&times;(N-1)}\\ 1& e^{-\mathrm{<figure-callout\; id="2"\; label="j"\; filenames="A200910000196E00212.png"\; state="\{\{state\}\}">j</figure-callout>}\frac{2\mathrm{\&pi;}}{\mathrm{<figure-callout\; id="2"\; label="N"\; filenames="A200910000196E00212.png"\; state="\{\{state\}\}">N</figure-callout>}}2\&times;1}& e^{-\mathrm{<figure-callout\; id="2"\; label="j"\; filenames="A200910000196E00212.png"\; state="\{\{state\}\}">j</figure-callout>}\frac{2\mathrm{\&pi;}}{\mathrm{<figure-callout\; id="2"\; label="N"\; filenames="A200910000196E00212.png"\; state="\{\{state\}\}">N</figure-callout>}}2\&times;2}& \&CenterDot;\&CenterDot;\&CenterDot;& e^{-\mathrm{<figure-callout\; id="2"\; label="j"\; filenames="A200910000196E00212.png"\; state="\{\{state\}\}">j</figure-callout>}\frac{2\mathrm{\&pi;}}{\mathrm{<figure-callout\; id="2"\; label="N"\; filenames="A200910000196E00212.png"\; state="\{\{state\}\}">N</figure-callout>}}2\&times;(N-1)}\\ \&CenterDot;& \&CenterDot;& \&CenterDot;& \&CenterDot;& \&CenterDot;\\ \&CenterDot;& \&CenterDot;& \&CenterDot;& \&CenterDot;& \&CenterDot;\\ \&CenterDot;& \&CenterDot;& \&CenterDot;& \&CenterDot;& \&CenterDot;\\ 1& e^{-\mathrm{<figure-callout\; id="2"\; label="j"\; filenames="A200910000196E00212.png"\; state="\{\{state\}\}">j</figure-callout>}\frac{2\mathrm{\&pi;}}{N}(N-1)\&times;1}& e^{-\mathrm{<figure-callout\; id="2"\; label="j"\; filenames="A200910000196E00212.png"\; state="\{\{state\}\}">j</figure-callout>}\frac{2\mathrm{\&pi;}}{N}(N-1)\&times;2}& \&CenterDot;\&CenterDot;\&CenterDot;& e^{-\mathrm{<figure-callout\; id="2"\; label="j"\; filenames="A200910000196E00212.png"\; state="\{\{state\}\}">j</figure-callout>}\frac{2\mathrm{\&pi;}}{N}(N-1)\&times;(N-1)}\end{array}\right]\left[\begin{array}{c}{x}_0\\ x_1\\ x_2\\ \&CenterDot;\\ \&CenterDot;\\ \&CenterDot;\\ x_{N-1}\end{array}\right]$

Embodiment 2

The Walsh conversion is adopted in the preliminary treatment of this example, and transformation matrix is the Walsh matrix, and this embodiment is applicable to that the number N of feedback message is 2,4,8 ..., just be 2 ⁿSituation, for example,, can adopt 4 rank Walsh conversion for the situation of N=4, at this moment, the Walsh transformation matrix is:

$T=\left[\begin{array}{cccc}1& 1& 1& 1\\ 1& -1& 1& -1\\ 1& 1& -1& -1\\ 1& -1& -1& 1\end{array}\right]$

With source modulation symbol x ₀, x ₁... x _N-1Through preliminary treatment, that is, and with source modulation symbol x ₀, x ₁... x _N-1Operate with the Walsh matrix, obtain target modulation symbol X:

$X=\left[\begin{array}{c}{X}_0\\ X_1\\ X_2\\ X_3\end{array}\right]=\mathrm{Tx}=\left[\begin{array}{cccc}1& 1& 1& 1\\ 1& -1& 1& -1\\ 1& 1& -1& -1\\ 1& -1& -1& 1\end{array}\right]\left[\begin{array}{c}{x}_0\\ x_1\\ x_2\\ x_3\end{array}\right]$

Embodiment 3

The transformation matrix that this example adopts the cyclic shift of Zadoff-Chu sequence to form, wherein, r is the positive integer relatively prime with N.

If N is an odd number, then transformation matrix is:

$T=\left[\begin{array}{ccccc}1& e^{-j\frac{2\mathrm{\&pi;}}{N}r\&times;\frac{1\&times;(1+1)}{2}}& e^{-j\frac{2\mathrm{\&pi;}}{N}r\&times;\frac{2\&times;(2+1)}{2}}& \&CenterDot;\&CenterDot;\&CenterDot;& e^{-j\frac{2\mathrm{\&pi;}}{N}r\&times;\frac{(N-1)\&times;N}{2}}\\ e^{-j\frac{2\mathrm{\&pi;}}{N}r\&times;\frac{(N-1)\&times;N}{2}}& 1& e^{-j\frac{2\mathrm{\&pi;}}{N}r\&times;\frac{1\&times;(1+1)}{2}}& \&CenterDot;\&CenterDot;\&CenterDot;& e^{-j\frac{2\mathrm{\&pi;}}{N}r\&times;\frac{(N-2)\&times;(N-1)}{2}}\\ e^{-j\frac{2\mathrm{\&pi;}}{N}r\&times;\frac{(N-2)\&times;(N-1)}{2}}& e^{-j\frac{2\mathrm{\&pi;}}{N}r\&times;\frac{(N-1)\&times;N}{2}}& 1& \&CenterDot;\&CenterDot;\&CenterDot;& e^{-j\frac{2\mathrm{\&pi;}}{N}r\&times;\frac{(N-3)(N-2)}{2}}\\ \&CenterDot;& \&CenterDot;& \&CenterDot;& \&CenterDot;& \&CenterDot;\\ \&CenterDot;& \&CenterDot;& \&CenterDot;& \&CenterDot;& \&CenterDot;\\ \&CenterDot;& \&CenterDot;& \&CenterDot;& \&CenterDot;& \&CenterDot;\\ e^{-j\frac{2\mathrm{\&pi;}}{N}r\&times;\frac{1\&times;(1+1)}{2}}& e^{-j\frac{2\mathrm{\&pi;}}{N}r\&times;\frac{2\&times;(2+1)}{2}}& e^{-j\frac{2\mathrm{\&pi;}}{N}r\&times;\frac{3\&times;(3+1)}{2}}& \&CenterDot;\&CenterDot;\&CenterDot;& 1\end{array}\right]$

With source modulation symbol x ₀, x ₁... x _N-1Through preliminary treatment, that is, and with source modulation symbol x ₀, x ₁... x _N-1Operate with Fourier matrix, obtain target modulation symbol X:

$X=\left[\begin{array}{c}{X}_0\\ X_1\\ X_2\\ \&CenterDot;\\ \&CenterDot;\\ \&CenterDot;\\ X_{N-1}\end{array}\right]=\mathrm{Tx}=\left[\begin{array}{ccccc}1& e^{-j\frac{2\mathrm{\&pi;}}{N}r\&times;\frac{1\&times;(1+1)}{2}}& e^{-j\frac{2\mathrm{\&pi;}}{N}r\&times;\frac{2\&times;(2+1)}{2}}& \&CenterDot;\&CenterDot;\&CenterDot;& e^{-j\frac{2\mathrm{\&pi;}}{N}r\&times;\frac{(N-1)\&times;N}{2}}\\ e^{-j\frac{2\mathrm{\&pi;}}{N}r\&times;\frac{(N-1)\&times;N}{2}}& 1& e^{-j\frac{2\mathrm{\&pi;}}{N}r\&times;\frac{1\&times;(1+1)}{2}}& \&CenterDot;\&CenterDot;\&CenterDot;& e^{-j\frac{2\mathrm{\&pi;}}{N}r\&times;\frac{(N-2)\&times;(N-1)}{2}}\\ e^{-j\frac{2\mathrm{\&pi;}}{N}r\&times;\frac{(N-2)\&times;(N-1)}{2}}& e^{-j\frac{2\mathrm{\&pi;}}{N}r\&times;\frac{(N-1)\&times;N}{2}}& 1& \&CenterDot;\&CenterDot;\&CenterDot;& e^{-j\frac{2\mathrm{\&pi;}}{N}r\&times;\frac{(N-3)(N-2)}{2}}\\ \&CenterDot;& \&CenterDot;& \&CenterDot;& \&CenterDot;& \&CenterDot;\\ \&CenterDot;& \&CenterDot;& \&CenterDot;& \&CenterDot;& \&CenterDot;\\ \&CenterDot;& \&CenterDot;& \&CenterDot;& \&CenterDot;& \&CenterDot;\\ e^{-j\frac{2\mathrm{\&pi;}}{N}r\&times;\frac{1\&times;(1+1)}{2}}& e^{-j\frac{2\mathrm{\&pi;}}{N}r\&times;\frac{2\&times;(2+1)}{2}}& e^{-j\frac{2\mathrm{\&pi;}}{N}r\&times;\frac{3\&times;(3+1)}{2}}& \&CenterDot;\&CenterDot;\&CenterDot;& 1\end{array}\right]\left[\begin{array}{c}{x}_0\\ x_1\\ x_2\\ \&CenterDot;\\ \&CenterDot;\\ \&CenterDot;\\ x_{N-1}\end{array}\right]$

If N is an even number, then transformation matrix is:

$T=\left[\begin{array}{ccccc}1& e^{-\mathrm{<figure-callout\; id="2"\; label="j"\; filenames="A200910000196E00212.png"\; state="\{\{state\}\}">j</figure-callout>}\frac{2\mathrm{\&pi;}}{N}r\&times;\frac{1^2}{2}}& e^{-\mathrm{<figure-callout\; id="2"\; label="j"\; filenames="A200910000196E00212.png"\; state="\{\{state\}\}">j</figure-callout>}\frac{2\mathrm{\&pi;}}{N}r\&times;\frac{2^2}{2}}& \&CenterDot;\&CenterDot;\&CenterDot;& e^{-\mathrm{<figure-callout\; id="2"\; label="j"\; filenames="A200910000196E00212.png"\; state="\{\{state\}\}">j</figure-callout>}\frac{2\mathrm{\&pi;}}{N}r\&times;\frac{{(N-1)}^2}{2}}\\ e^{-\mathrm{<figure-callout\; id="2"\; label="j"\; filenames="A200910000196E00212.png"\; state="\{\{state\}\}">j</figure-callout>}\frac{2\mathrm{\&pi;}}{N}r\&times;\frac{{(N-1)}^2}{2}}& 1& e^{-\mathrm{<figure-callout\; id="2"\; label="j"\; filenames="A200910000196E00212.png"\; state="\{\{state\}\}">j</figure-callout>}\frac{2\mathrm{\&pi;}}{N}r\&times;\frac{1^2}{2}}& \&CenterDot;\&CenterDot;\&CenterDot;& e^{-\mathrm{<figure-callout\; id="2"\; label="j"\; filenames="A200910000196E00212.png"\; state="\{\{state\}\}">j</figure-callout>}\frac{2\mathrm{\&pi;}}{N}r\&times;\frac{{(N-2)}^2}{2}}\\ e^{-\mathrm{<figure-callout\; id="2"\; label="j"\; filenames="A200910000196E00212.png"\; state="\{\{state\}\}">j</figure-callout>}\frac{2\mathrm{\&pi;}}{N}r\&times;\frac{{(N-2)}^2}{2}}& e^{-\mathrm{<figure-callout\; id="2"\; label="j"\; filenames="A200910000196E00212.png"\; state="\{\{state\}\}">j</figure-callout>}\frac{2\mathrm{\&pi;}}{N}r\&times;\frac{{(N-1)}^2}{2}}& 1& \&CenterDot;\&CenterDot;\&CenterDot;& e^{-\mathrm{<figure-callout\; id="2"\; label="j"\; filenames="A200910000196E00212.png"\; state="\{\{state\}\}">j</figure-callout>}\frac{2\mathrm{\&pi;}}{N}r\&times;\frac{{(N-3)}^2}{2}}\\ \&CenterDot;& \&CenterDot;& \&CenterDot;& \&CenterDot;& \&CenterDot;\\ \&CenterDot;& \&CenterDot;& \&CenterDot;& \&CenterDot;& \&CenterDot;\\ \&CenterDot;& \&CenterDot;& \&CenterDot;& \&CenterDot;& \&CenterDot;\\ e^{-\mathrm{<figure-callout\; id="2"\; label="j"\; filenames="A200910000196E00212.png"\; state="\{\{state\}\}">j</figure-callout>}\frac{2\mathrm{\&pi;}}{N}r\&times;\frac{1^2}{2}}& e^{-\mathrm{<figure-callout\; id="2"\; label="j"\; filenames="A200910000196E00212.png"\; state="\{\{state\}\}">j</figure-callout>}\frac{2\mathrm{\&pi;}}{N}r\&times;\frac{2^2}{2}}& e^{-\mathrm{<figure-callout\; id="2"\; label="j"\; filenames="A200910000196E00212.png"\; state="\{\{state\}\}">j</figure-callout>}\frac{2\mathrm{\&pi;}}{N}r\&times;\frac{3^2}{2}}& \&CenterDot;\&CenterDot;\&CenterDot;& 1\end{array}\right]$

With source modulation symbol x ₀, x ₁... x _N-1Through preliminary treatment, that is, and with source modulation symbol x ₀, x ₁... x _N-1Operate with Fourier matrix, obtain target modulation symbol X:

$x=\left[\begin{array}{c}{X}_0\\ X_1\\ X_2\\ \&CenterDot;\\ \&CenterDot;\\ \&CenterDot;\\ X_{N-1}\end{array}\right]=\mathrm{Tx}=\left[\begin{array}{ccccc}1& e^{-j\frac{2\mathrm{\&pi;}}{N}r\&times;\frac{1^2}{2}}& e^{-j\frac{2\mathrm{\&pi;}}{N}r\&times;\frac{2^2}{2}}& \&CenterDot;\&CenterDot;\&CenterDot;& e^{-j\frac{2\mathrm{\&pi;}}{N}r\&times;\frac{{(N-1)}^2}{2}}\\ e^{-j\frac{2\mathrm{\&pi;}}{N}r\&times;\frac{{(N-1)}^2}{2}}& 1& e^{-j\frac{2\mathrm{\&pi;}}{N}r\&times;\frac{1^2}{2}}& \&CenterDot;\&CenterDot;\&CenterDot;& e^{-j\frac{2\mathrm{\&pi;}}{N}r\&times;\frac{{(N-2)}^2}{2}}\\ e^{-j\frac{2\mathrm{\&pi;}}{N}r\&times;\frac{{(N-2)}^2}{2}}& e^{-j\frac{2\mathrm{\&pi;}}{N}r\&times;\frac{{(N-1)}^2}{2}}& 1& \&CenterDot;\&CenterDot;\&CenterDot;& e^{-j\frac{2\mathrm{\&pi;}}{N}r\&times;\frac{{(N-3)}^2}{2}}\\ \&CenterDot;& \&CenterDot;& \&CenterDot;& \&CenterDot;& \&CenterDot;\\ \&CenterDot;& \&CenterDot;& \&CenterDot;& \&CenterDot;& \&CenterDot;\\ \&CenterDot;& \&CenterDot;& \&CenterDot;& \&CenterDot;& \&CenterDot;\\ e^{-j\frac{2\mathrm{\&pi;}}{N}r\&times;\frac{1^2}{2}}& e^{-j\frac{2\mathrm{\&pi;}}{N}r\&times;\frac{2^2}{2}}& e^{-j\frac{2\mathrm{\&pi;}}{N}r\&times;\frac{3^2}{2}}& \&CenterDot;\&CenterDot;\&CenterDot;& 1\end{array}\right]\left[\begin{array}{c}{x}_0\\ x_1\\ x_2\\ \&CenterDot;\\ \&CenterDot;\\ \&CenterDot;\\ x_{N-1}\end{array}\right]$

Method embodiment two

In embodiments of the present invention, a kind of processing method of feedback information is provided, be preferably used for the target modulation symbol among the said method embodiment one that receives is handled, promptly, the base station is used to handle a plurality of target modulation symbols of a plurality of feedback information correspondences of self terminal, this method comprises: handle a plurality of target modulation symbols that receive the base station, obtain the multiple source modulation symbol, wherein, each target modulation symbol is all relevant with the multiple source modulation symbol, and a source modulation symbol is corresponding to a feedback information.This processing comprises: orthogonal processing or pseudo-orthogonal processing.

With corresponding among the said method embodiment one, the processing of base station and the preliminary treatment of terminal be inverse operation each other, can realize the processing of base station side to those skilled in the art according to the preliminary treatment of method embodiment one, therefore no longer describes here.

By above description as can be seen, present embodiment can guarantee that there is identical detection performance in system to the source modulation symbol that sends simultaneously, in addition, because the information of each source modulation symbol sends on a plurality of PUCCH channels, can obtain extra frequency diversity gain, and then improve the overall performance of system.

Device embodiment one

In embodiments of the present invention, provide a kind of terminal, be preferably used for realizing the method among the said method embodiment one.Fig. 3 is the block diagram of this terminal, as shown in Figure 3; This terminal comprises: first modulation module 30, second modulation module 32, mapping block 34, sending module 36 below are described in detail each module.

First modulation module 30 is used to modulate feedback information to obtain the source modulation symbol; Second modulation module 32 is connected to first modulation module 30, is used for the multiple source modulation symbol that first modulation module 30 generates is carried out preliminary treatment, obtains a plurality of target modulation symbols, and wherein, each target modulation symbol is all relevant with the multiple source modulation symbol; Mapping block 34 is connected to second modulation module 32, is used for a plurality of target modulation symbols that second modulation module 32 generates are mapped to a plurality of channels respectively; Sending module 36 is connected to second modulation module 32 and mapping block 34, is used for each target modulation symbol that second modulation module 32 generates is sent to the base station on the channel of corresponding mapping block 34 mappings.The channel here can be meant the PUCCH channel, also can be the PUSCH channel, and above-mentioned preliminary treatment can be orthogonal processing or pseudo-orthogonal processing.

Second modulation module 32 can be carried out preliminary treatment by following formula, obtains a plurality of target modulation symbols: (X ₀, X ₁... X _N-1) ^T=M (x ₀, x ₁... x _N-1) ^T, wherein, M is a transformation matrix, x ₀, x ₁... x _N-1Be described multiple source modulation symbol, X ₀, X ₁... X _N-1Be x ₀, x ₁... x _N-1Corresponding described a plurality of target modulation symbols, N also equals to send the number of this N the shared channel of modulation symbol for needing the number of the modulation symbol of transmission simultaneously, and the value of N is the natural number more than or equal to 1, () ^TThe expression transpose process.

In the above-mentioned transformation matrix at least delegation two nonzero elements are arranged, in addition, the mould of all elements also can equate in the transformation matrix.In specific implementation process, transformation matrix can be made up of the cyclic shift of ZC sequence.

Based on the requirement of above-mentioned transformation matrix, it is one of following that orthogonal processing or pseudo-orthogonal processing can comprise: Fourier transform, inverse Fourier transform or Walsh conversion need to prove that the row/column number of transformation matrix can equal the number of modulation symbol.

By above description as can be seen, make by second modulation module 32 and all comprised the source modulation symbol information that needs send in the target modulation symbol.Like this, there is identical detection performance in the system that can guarantee to the source modulation symbol that sends simultaneously, in addition, because the information of each source modulation symbol sends, can obtain extra frequency diversity gain on a plurality of PUCCH channels, and then improves the overall performance of system.

Device implements two

In embodiments of the present invention, provide a kind of base station, be preferably used for realizing the method among the said method embodiment two.Fig. 4 is the block diagram of this base station, and as shown in Figure 4, this base station comprises: receiver module 40, first demodulation module 42, second demodulation module 44 below are described in detail each module.

Receiver module 40 is used to receive a plurality of target modulation symbols of a plurality of feedback information correspondences of self terminal; First demodulation module 42 is connected to receiver module 40, is used for a plurality of target modulation symbols that receiver module 40 receives are handled, obtain the multiple source modulation symbol, wherein, each target modulation symbol is all relevant with the multiple source modulation symbol, and a source modulation symbol is corresponding to a feedback information; Second demodulation module 44 is connected to first demodulation module 42, is used for the multiple source modulation symbol that first demodulation module 42 generates is handled, and obtains a plurality of feedback informations.

Above-mentioned first demodulation module 42 is corresponding to second modulation module 32 among the said apparatus embodiment one, both operating process meetings are inverse operation, this first demodulation module 42 is implementation particularly, can easily realize according to said method embodiment two to those skilled in the art, therefore no longer describe.

By above description as can be seen, present embodiment can guarantee that there is identical detection performance in system to the source modulation symbol that sends simultaneously, in addition, because the information of each source modulation symbol sends on a plurality of PUCCH channels, can obtain extra frequency diversity gain, and then improve the overall performance of system.

In sum, the embodiment of the invention is carried out preliminary treatment by the modulation symbol to the feedback information correspondence, make the modulation symbol of each feedback information correspondence all be carried on each PUCCH channel, and send to the base station, corresponding contrary the processing carried out to carrying out pretreated modulation symbol in the base station, to recover a plurality of modulation symbols, than prior art, the embodiment of the invention can balanced each PUCCH channel channel quality, make the identical detection performance that has of ACK/NACK message that system sends different PUCCH channel, can obtain higher frequency diversity gain, improve the transmission quality of PUCCH, and then improve the overall performance of system.

Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and carry out by calculation element, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.

The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (15)

1. the processing method of a feedback information is used for terminal a plurality of feedback informations that it returns to the base station is handled, and wherein, the corresponding source modulation symbol of feedback information is characterized in that described method comprises:

The multiple source modulation symbol is carried out preliminary treatment, obtain a plurality of target modulation symbols, wherein, each target modulation symbol is all relevant with described multiple source modulation symbol.

2. method according to claim 1 is characterized in that, described preliminary treatment comprises: orthogonal processing or pseudo-orthogonal processing.

3. method according to claim 2 is characterized in that, carries out preliminary treatment by following formula, obtains a plurality of target modulation symbols:

(X ₀, X ₁... X _N-1) ^T=M (x ₀, x ₁... x _N-1) ^T, wherein, M is a transformation matrix, x ₀, x ₁... x _N-1Be described multiple source modulation symbol; X ₀, X ₁... X _N-1Be x ₀, x ₁... x _N-1Corresponding described a plurality of target modulation symbols, N is the natural number more than or equal to 1, () ^TThe expression transpose process.

4. method according to claim 3 is characterized in that, described transformation matrix meets the following conditions: in the described transformation matrix at least delegation two nonzero elements are arranged.

5. method according to claim 4 is characterized in that, described transformation matrix also meets the following conditions: the mould of all elements equates in the described transformation matrix.

6. according to each described method in the claim 3 to 5, it is characterized in that described transformation matrix comprises: the transformation matrix that the cyclic shift of ZC sequence is formed.

7. method according to claim 2 is characterized in that, it is one of following that described orthogonal processing or pseudo-orthogonal processing comprise: Fourier transform, inverse Fourier transform, Walsh conversion.

8. method according to claim 1 is characterized in that, described obtain a plurality of target modulation symbols after, described method also comprises:

Described terminal is carried on described a plurality of target modulation symbols respectively and sends to described base station on the corresponding channel.

9. method according to claim 8 is characterized in that, after described terminal sent to described base station with described a plurality of target modulation symbols, described method also comprised:

The contrary processing carried out to the described a plurality of target modulation symbols that receive in described base station, and to obtain described source modulation symbol, wherein, described contrary processing and described preliminary treatment be inverse operation each other.

10. the processing method of a feedback information is used for a plurality of target modulation symbols that a plurality of feedback information correspondences of self terminal are handled in the base station, it is characterized in that described method comprises:

Handle a plurality of target modulation symbols that receive described base station, obtains the multiple source modulation symbol, and wherein, each target modulation symbol is all relevant with described multiple source modulation symbol, and a source modulation symbol is corresponding to a feedback information.

11. method according to claim 10 is characterized in that, described processing comprises: orthogonal processing or pseudo-orthogonal processing.

12. a terminal comprises being used to modulate feedback information to obtain first modulation module of source modulation symbol, it is characterized in that described terminal also comprises:

Second modulation module is used for the multiple source modulation symbol that described first modulation module generates is carried out preliminary treatment, obtains a plurality of target modulation symbols, and wherein, each target modulation symbol is all relevant with described multiple source modulation symbol;

Mapping block is used for described a plurality of target modulation symbols that described second modulation module generates are mapped to a plurality of channels respectively;

Sending module, each the target modulation symbol that is used for described second modulation module is generated sends to the base station on the channel of corresponding described mapping block mapping.

13. terminal according to claim 12 is characterized in that, described preliminary treatment comprises: orthogonal processing or pseudo-orthogonal processing.

14. a base station comprises the receiver module of a plurality of target modulation symbols of a plurality of feedback information correspondences that are used to receive self terminal it is characterized in that described base station also comprises:

First demodulation module, be used for a plurality of target modulation symbols that described receiver module receives are handled, obtain the multiple source modulation symbol, wherein, each target modulation symbol is all relevant with described multiple source modulation symbol, and a source modulation symbol is corresponding to a feedback information;

Second demodulation module is used for the described multiple source modulation symbol that described first demodulation module generates is handled, and obtains described a plurality of feedback information.

15. base station according to claim 14 is characterized in that, described processing comprises: orthogonal processing or pseudo-orthogonal processing.

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