CN103475445B - The signal processing method of Uplink Shared Channel and device - Google Patents

Abstract

The present invention relates to moving communicating field, disclose signal processing method and the device of a kind of Uplink Shared Channel.In the present invention, by exchanging the order of Base-Band Processing, will move after precoding, make the number of run that physical location maps and OFDM symbol generates be reduced to the number of plies by antenna port number, decrease computational complexity, thus the complexity that reduction processes in the symbol level signal processing of Uplink Shared Channel.

Description

The signal processing method of Uplink Shared Channel and device

Technical field

The present invention relates to moving communicating field, particularly to signal processing method and the device of a kind of Uplink Shared Channel.

Background technology

Long Term Evolution (Long Term Evolution is called for short " LTE ") standard will complete third generation cooperation the end of the year 2008 The formulation work of first version 3 GPP Release8 of Partnership Program；On the other hand, International Telecommunication Union (International Telecommunications Union, is called for short " ITU ") hold world's radio meeting in 2007, start super three generations (Beyond Third Generation in mobile communication system is called for short mobile communication system " B3G ") the distribution of frequency spectrum, and completed International Mobile system-2000(International Mobile in 2008 TelecomSystem-2000, is called for short " IMT-2000 ") evolution-IMT-Advanced IMT-of (i.e. third generation 3G) system The formulation of the minimum performance demand of Advanced (i.e. forth generation 4G) system and appraisal procedure etc., have issued senior international mobile logical The circular of letter IMT-A technical standard collection.Third generation partner program 3GPP is in order to keep technical advantage and the market of standard Competitive advantage, has formally started research and the formulation of LTE evolution standard LTE-Advanced in April, 2008, and in 2010 6 Month by the assessment of ITU, October one of the formally major technique becoming IMT-A.The downlink peak rates of LTE-A is up to 1000Mbps, up is up to 500Mbps.For reaching these targets, introduce a series of key technology, wherein, up Antennas number is evolved to most 4 antennas by 1 and sends.Give existing Uplink Shared Channel processing procedure as shown in Figure 1, It is described as follows successively:

Coding: i.e. chnnel coding, carries out Turbo coding, rate-matched and code block level by the binary information bit of input The processing procedures such as connection.

Scrambling: the data after being encoded by channel are converted to the pseudo-random data with same meaning and identical bit, The input of this module is $b^{\left(q\right)}\left(0\right),...,b^{\left(q\right)}(M_{\mathrm{bit}}^{\left(q\right)}-1),$ After scrambling it is ${\tilde{b}}^{\left(q\right)}\left(0\right),...,{\tilde{b}}^{\left(q\right)}(M_{\mathrm{bit}}^{\left(q\right)}-1),$ Q is codeword number, For total bit number of code word q, up could support up two code words i.e. q ∈ { 0,1}.The process of scrambling can be represented by the formula:

$\left\{\begin{array}{cc}{\tilde{b}}^{\left(q\right)}\left(i\right)=1& \mathrm{if}{b}^{\left(q\right)}\left(i\right)=x\\ {\tilde{b}}^{\left(q\right)}\left(i\right)={\tilde{b}}^{\left(q\right)}(i-1)& \mathrm{if}{b}^{\left(q\right)}\left(i\right)=y\\ {\tilde{b}}^{\left(q\right)}\left(i\right)=(b^{\left(q\right)}\left(i\right)+c^{\left(q\right)}\left(i\right))\mathrm{mod}2& \mathrm{if}{b}^{\left(q\right)}\left(i\right)=0\mathrm{or}1\end{array}\right.,i=\mathrm{0,1},...M_{\mathrm{bit}}^{\left(q\right)}-1.$

Wherein, the expression formula of scramble sequence is: c (n)=(x₁(n+N_C)+x₂(n+N_C)) mod2,

x₁(n+31)=(x₁(n+3)+x₁(n)) mod2,

x₂(n+31)=(x₂(n+3)+x₂(n+2)+x₂(n+1)+x₂(n)) mod2,

N_C=1600, x₁The initiation sequence of sequence is: x₁(0)=1,x₁(n)=0, n=1,2 ..., 30, x₂The initial sequence of sequence It is classified as: $c_{\mathrm{init}}={\mathrm{\Σ}}_{i=0}^{360}{x}_2\left(i\right)\·2^i,$ n_RNTIWireless network is accessed for terminal Temporary mark, n_sFor timeslot number,For cell id.

Modulation: by the sequence after scramblingIt is mapped to modulation symbol；LTE-A agreement is supported orthogonal Phase-shift keying (PSK) (Quadrature Phase Shift Keying is called for short " QPSK "), hexadecimal quadrature Modulation and Amplitude Modulation 16QAM Three kinds of modulation systems such as (Quadrature Amplitude Modulation) and 60 quaternary quadrature amplitude modulation 64QAM, Symbol after modulation is designated as Symbolic number after modulating for code word q.

Layer maps: each code word being mapped on the layer of transmitting, the data after mapping can use x (i)=[x⁽⁰⁾ (i)...x^(υ-1)(i)]^TRepresent,υ is the number of plies,For every layer of modulation symbol number accommodated.Concrete Realize the mapping relations calculating to layer of the available code word as shown in table 1.

Table 1

Single carrier converts: the data of each layer be divided intoGroup, one group of corresponding single carrier frequency division Multiple access (Single Carrier-Frequency Division Multiple Access is called for short " SC-FDMA ") symbol, phase The single carrier conversion answered can be represented by the formula:

$y^{\left(\mathrm{\λ}\right)}(l\·M_{\mathrm{sc}}^{\mathrm{PUSCH}}+k)=\frac{1}{\sqrt{M_{\mathrm{sc}}^{\mathrm{PUSCH}}}}\underset{i=0}{\overset{M_{\mathrm{sc}}^{\mathrm{PUSCH}}-1}{\mathrm{\Σ}}}{x}^{\left(\mathrm{\λ}\right)}(l\·M_{\mathrm{sc}}^{\mathrm{PUSCH}}+i)e^{-j\frac{2\mathrm{\πik}}{M_{\mathrm{sc}}^{\mathrm{PUSCH}}}}$

$k=0,...,M_{\mathrm{sc}}^{\mathrm{PUSCH}}-1$

$l=0,...,M_{\mathrm{symb}}^{\mathrm{layer}}/M_{\mathrm{sc}}^{\mathrm{PUSCH}}-1$

Wherein, λ=0,1 ..., υ-1, For Physical Uplink Shared Channel The number of resource blocks that (Physical Uplink Shared Channel is called for short " PUSCH ") takies,It it is a Resource Block bag The subcarrier number contained.

Precoding: will be mapped to the data on layer and be transformed into the data being mapped on physical resource, be specifically calculated as follows:

$\left[\begin{array}{c}{z}^{\left(0\right)}\left(i\right)\\ .\\ .\\ .\\ z^{(P-1)}\left(i\right)\end{array}\right]=W\left[\begin{array}{c}{y}^{\left(0\right)}\left(i\right)\\ .\\ .\\ .\\ y^{(\mathrm{\υ}-1)}\left(i\right)\end{array}\right],$ $i=\mathrm{0,1},...,M_{\mathrm{symb}}^{\mathrm{ap}}-1,$ $M_{\mathrm{symb}}^{\mathrm{ap}}=M_{\mathrm{symb}}^{\mathrm{layer}}$

Wherein, $\left[\begin{array}{c}{y}^{\left(0\right)}\left(i\right)\\ .\\ .\\ .\\ y^{(\mathrm{\υ}-1)}\left(i\right)\end{array}\right]$ For being mapped in the i-th time domain data of 0 to υ-1, $\left[\begin{array}{c}{z}^{\left(0\right)}\left(i\right)\\ .\\ .\\ .\\ z^{(P-1)}\left(i\right)\end{array}\right]$ For antenna port 0 to p-1's I-th time domain data, the concrete index value of code book W is notified by base station, and its value set is relevant with number of plies υ and antenna port number P. When υ=1, during P=1, W=1；Remaining situation is as shown in table 2 to table 7, wherein, codebook set when table 2 is single antenna transmission, table 3 Being codebook set during double antenna transmission, table 4 is the codebook set I during four antennas transmissions, and table 5 is code book during four antennas transmissions Set II, table 6 is the codebook set III during four antennas transmissions, and table 7 is the codebook set IV during four antennas transmissions.

The numbering of code book W	Number of plies υ=1
		0	[1]

Table 2

Table 3

Table 4

Table 5

Table 6

Table 7

Physical location maps: the data exported by precoding, is mapped to the thing of distribution according to the mode of time domain after first frequency domain Reason unit gets on, and to unappropriated physical location zero filling.

OFDM (Orthogonal Frequency Division Multiplexing is called for short " OFDM ") symbol Number generate: according to being mapped to the data of each Resource Unit, generating the data of time domain, circular is as follows:

Wherein,It is mapped in the t time domain data in the l OFDM symbol for antenna port p,Represent upwards Round,Represent and round downwards, 0≤t < (N_{CP, l}+N)×T_s, N_{CP, l}For circulating prefix-length, T_sFor basic unit of time, its Size is (1/2048*15k) second, For up total resources block number,It it is a Resource Block The subcarrier number comprised, N=2048, Δ f=15kHz,It is mapped in the l OFDM symbol kth for antenna port p to carry Data on ripple, the Cyclic Prefix parameter of single-carrier frequency division multiple access SC-FDMA is as shown in table 8.

Table 8

Owing to the Uplink Shared Channel of LTE protocol is that single antenna sends, and LTE-A agreement Uplink Shared Channel is supported Big transmission antenna number is 4, and the number of plies is 1 ~ 4；If directly calculating according to order as shown in Figure 1, then in the case of one layer of four antenna, The uplink symbol level of LTE-A agreement processes complexity and increases 3 times by processing complexity than the uplink symbol level of LTE protocol.Especially It is that, when the number of plies that transmission antenna number maps more than layer, the computation complexity of prior art is high, will be unfavorable for LTE-A agreement Implement.

Summary of the invention

It is an object of the invention to provide signal processing method and the device of a kind of Uplink Shared Channel so that up common Enjoy the complexity that in the symbol level signal processing of channel, reduction processes.

For solving above-mentioned technical problem, embodiments of the present invention provide the signal processing side of a kind of Uplink Shared Channel Method, comprises the steps of

The data obtained through single carrier conversion are mapped on the physical location of distribution；

According to being mapped to the data of each physical location, generate orthogonal frequency division multiplex OFDM symbol, obtain each physics list The time domain data of unit；

The time domain data of the described each physical location obtained is carried out precoding, the time domain data obtained is mapped to respectively On transmission antenna port.

Embodiments of the present invention additionally provide the signal processing apparatus of a kind of Uplink Shared Channel, comprise: physical location Mapping block, orthogonal frequency division multiplex OFDM symbol generation module, precoding module；

Wherein, described physical location mapping block for being mapped to the physics of distribution by the data obtained through single carrier conversion On unit；

Described orthogonal frequency division multiplex OFDM symbol generation module is mapped to the data of each physical location for basis, generates Orthogonal frequency division multiplex OFDM symbol, obtains the time domain data of each physical location；

Described precoding module, for the time domain data of the described each physical location obtained is carried out precoding, will obtain Time domain data be mapped on each transmission antenna port.

Embodiment of the present invention in terms of existing technologies, by exchanging the order of Base-Band Processing, will be moved after precoding, Make the number of run that physical location maps and OFDM symbol generates be reduced to the number of plies by antenna port number, decrease computing complicated Degree, thus the complexity that reduction processes in the symbol level signal processing of Uplink Shared Channel.

It addition, described transmission antenna port number is more than or equal to the number of plies.If transmission antenna port number is less than the number of plies, connect Receiving end will be unable to solve transmitting terminal data, and therefore, transmission antenna port number is more than or equal to the number of plies.

It addition, before the described step that the data obtained through single carrier conversion are mapped on the physical location of distribution, Also comprise the steps of

The binary information bit of input is carried out chnnel coding；

Data after being encoded by channel are converted to the pseudo-random data with same meaning and identical bit；

By the sequence after scrambling, it is mapped to modulation symbol；

Each code word is mapped on the layer of transmitting；

By the data decile of each layer in groups, one group of corresponding single-carrier frequency division multiple access SC-FDMA symbol, carry out single load Wave conversion.

Due to above-mentioned processing procedure similarly to the prior art, make embodiments of the present invention need not move through great structure or The variation of processing method, can reduce the purpose of the complexity of process simply and effectively.

It addition, in the described step that the data obtained through single carrier conversion are mapped on the physical location of distribution, will The data of each layer are mapped on the physical resource of correspondence.

It is mapped to the data of each physical location in described basis, generates OFDM symbol, obtain each physics In the step of the time domain data of unit, the time domain data of generation is the time domain data of each layer.

Carry out precoding at the described time domain data to the described each physical location obtained, the time domain data obtained is reflected Be mapped in the step on each transmission antenna port, described in the time domain data that obtains be the time domain data of each layer.

Owing to will move after precoding processing process, so physical location maps, OFDM symbol generates and precoding these three Data handled by processing procedure are all the data of each layer after layer maps, again owing to antenna port number is more than or equal to layer Number, so compared with prior art, physical location maps and OFDM symbol generates the number of run in processing procedure by antenna end Mouth number is reduced to the number of plies, thus decreases computational complexity.

Accompanying drawing explanation

Fig. 1 is Uplink Shared Channel processing procedure schematic diagram in prior art；

Fig. 2 is the flow chart of the signal processing method of the Uplink Shared Channel according to the first embodiment；

Fig. 3 is the structural representation of the signal processing apparatus of the Uplink Shared Channel according to the second embodiment.

Detailed description of the invention

For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with the accompanying drawing each reality to the present invention The mode of executing is explained in detail.But, it will be understood by those skilled in the art that in each embodiment of the present invention, In order to make reader be more fully understood that, the application proposes many ins and outs.But, even if there is no these ins and outs and base Many variations and amendment in following embodiment, it is also possible to realize the application each claim technical side required for protection Case.

First embodiment of the present invention relates to the signal processing method of a kind of Uplink Shared Channel, by adjusting at base band Make sequence in order, will move after precoding, make the number of run that physical location maps and OFDM symbol generates be reduced to by antenna port number The number of plies, decreases computational complexity, thus the complexity that reduction processes in the symbol level signal processing of Uplink Shared Channel Degree.The flow process of the signal processing method of the Uplink Shared Channel that present embodiment provides is as in figure 2 it is shown, specifically comprise the following steps that

Step 201, carries out chnnel coding to the binary information bit of input；

Step 202, the data after being encoded by channel are converted to the pseudo random number with same meaning and identical bit According to；

Step 203, by the sequence after scrambling, is mapped to modulation symbol；

Step 204, is mapped to each code word on the layer of transmitting；

Step 205, by the data decile of each layer in groups, one group of corresponding single-carrier frequency division multiple access SC-FDMA symbol, Carry out single carrier conversion；

The step 201 of present embodiment is consistent with prior art to 205, is no longer described in detail at this.Due to above-mentioned Processing procedure similarly to the prior art, makes present embodiment need not move through the variation of great structure or processing method, Ji Kejian Singly effectively achieve the purpose of the complexity that reduction processes.

The data obtained through single carrier conversion are mapped on the physical location of distribution by step 206.Owing to carrying out single load During wave conversion, by the data decile of each layer in groups, one group of corresponding single-carrier frequency division multiple access SC-FDMA symbol, carry out list Carrier transformation, again owing to will move after precoding processing process, therefore, in this step, in the step that i.e. physical location maps, defeated Enter is the data of each layer, is also the data of each layer to be mapped on the physical resource of correspondence.

Step 207, according to being mapped to the data of each physical location, generates orthogonal frequency division multiplex OFDM symbol, obtains every The time domain data of individual physical location；

The computational methods generating OFDM symbol are the most same as the prior art, but implication is slightly different, the time domain data of generation Being the time domain data of each layer, expression is as follows:

Wherein,For being mapped in the t time domain data in the l OFDM symbol of layer υ,Represent and upwards take It is whole,Represent and round downwards, 0≤t < (N_{CP, l}+N)×T_s, N_{CP, l}For circulating prefix-length, T_sFor basic unit of time, it is big Little is (1/2048*15k) second, For up total resources block number,It it is a Resource Block bag The subcarrier number contained, N=2048, Δ f=15kHz,For being mapped in layer υ on the l OFDM symbol kth subcarrier Data.

Step 208, carries out precoding to the time domain data of each physical location obtained, and is mapped by the time domain data obtained On each transmission antenna port；In the present embodiment, the time domain data carrying out precoding processing is the time domain data of each layer, Then precoding processing is represented by:

$\left[\begin{array}{c}{s}_l^{\left(0\right)}\left(t\right)\\ .\\ .\\ .\\ s_l^{(P-1)}\left(t\right)\end{array}\right]=W\left[\begin{array}{c}{s}_l^{\left(0\right)}\left(t\right)\\ .\\ .\\ .\\ s_l^{(\mathrm{\&upsi;}-1)}\left(t\right)\end{array}\right],$ $t=\mathrm{0,1}...,M_{\mathrm{symb}}^{\mathrm{ap}}-1,$ $M_{\mathrm{symb}}^{\mathrm{ap}}=M_{\mathrm{symb}}^{\mathrm{layer}}$

Wherein, $\left[\begin{array}{c}{s}_l^{\left(0\right)}\left(t\right)\\ .\\ .\\ .\\ s_l^{(\mathrm{\&upsi;}-1)}\left(t\right)\end{array}\right]$ For being mapped in the t time domain data in the l OFDM symbol of layer 0 to υ-1, $\left[\begin{array}{c}{s}_l^{\left(0\right)}\left(t\right)\\ .\\ .\\ .\\ s_l^{(P-1)}\left(t\right)\end{array}\right]$ It is mapped in the t time domain data in the l OFDM symbol for antenna port 0 to p-1,For every layer of receiving Modulation symbol number, W is code book, and the concrete index value of this code book is notified by base station, its value set and number of plies υ and antenna port P is relevant for number.The concrete value of W is same as the prior art, does not repeats them here.

Present embodiment is to move after precoding with the difference of prior art, and physical unit maps, OFDM symbol Unlike the prior art, but the processing procedure of each step is identical for generation, the input of three steps of precoding, output data 's.By moving after precoding module, the number of run that physical location maps and OFDM symbol generates is reduced by antenna port number To the number of plies, therefore, decrease computational complexity, such as, the scene of the transmission diversity of monolayer four antenna, layer map after module with Originally than, only need to calculate once, need with prior art to calculate compared with in the of four times, physical location maps and OFDM symbol generates answers Miscellaneous degree will reduce nearly 75%.Especially OFDM symbol generate be Uplink Shared Channel each processing procedure in process complexity phase To higher, when the number of plies sent is less than transmission antenna number, can effectively reduce process complexity.

Additionally, it is noted that when carrying out precoding, each layer data of input is mapped to each transmission antenna port Up, therefore, the antenna port number of transmission is more than or equal to the number of plies, and otherwise, receiving terminal will be unable to solve transmitting terminal data.

The step of the most various methods divides, and is intended merely to describe clear, it is achieved time can merge into a step or Some step is split, is decomposed into multiple step, as long as comprising identical logical relation, all at the protection domain of this patent In；To adding inessential amendment in algorithm or in flow process or introducing inessential design, but do not change its algorithm With the core design of flow process all in the protection domain of this patent.

Second embodiment of the invention relates to the signal processing apparatus of a kind of Uplink Shared Channel, as it is shown on figure 3, inclusion Reason unit mapping block, orthogonal frequency division multiplex OFDM symbol generation module, precoding module, these three module and prior art phase The processing procedure of the module answered is identical, but input, output data difference.

Specifically, physical location mapping block for being mapped to the physics of distribution by the data obtained through single carrier conversion On unit；

Orthogonal frequency division multiplex OFDM symbol generation module is mapped to the data of each physical location for basis, generates orthogonal Frequency division multiplex OFDM symbol, obtains the time domain data of each physical location；

Precoding module is used for the time domain data of each physical location obtained is carried out precoding, the time domain number that will obtain According to being mapped on each transmission antenna port.

In addition to the above-mentioned module that there is difference with prior art, also comprise module same as the prior art: Coding module, scrambling module, modulation module, layer mapping block and single carrier conversion module；

Wherein, coding module is for carrying out chnnel coding by the binary information bit of input；

Scrambling module for by channel encode after data be converted to the puppet with same meaning and identical bit with Machine data；

Modulation module is for by the sequence after scrambling, being mapped to modulation symbol；

Layer mapping block for being mapped to the layer launched by each code word；

Single carrier conversion module for by the data decile of each layer in groups, one group of corresponding single-carrier frequency division multiple access SC-FDMA symbol, carries out single carrier conversion.

In the present embodiment, after single carrier conversion module, followed by physical location mapping block and OFDM Symbol generation module, therefore, the input of physical location mapping block is the data of each layer, and physical location mapping block is by each The data of layer are mapped on the physical resource of correspondence；The time domain data that orthogonal frequency division multiplex OFDM symbol generation module generates is every The time domain data of individual layer.After precoding module is pulled back OFDM symbol generation module, therefore, the input of precoding module is The time domain data of each layer of OFDM symbol generation module generation.

If additionally, it is noted that transmission antenna port number is less than the number of plies, receiving terminal will be unable to solve transmission terminal number According to, therefore, transmission antenna port number is more than or equal to the number of plies.

It is seen that, present embodiment is the system embodiment corresponding with the first embodiment, and present embodiment can be with First embodiment is worked in coordination enforcement.The relevant technical details mentioned in first embodiment the most still has Effect, in order to reduce repetition, repeats no more here.Correspondingly, the relevant technical details mentioned in present embodiment is also applicable in In first embodiment.

It is noted that each module involved in present embodiment is logic module, in actual applications, one Individual logical block can be a physical location, it is also possible to be a part for a physical location, it is also possible to multiple physics lists The combination of unit realizes.Additionally, for the innovative part highlighting the present invention, will be with solution institute of the present invention in present embodiment The unit that the technical problem relation of proposition is the closest introduces, but this is not intended that in present embodiment the list that there is not other Unit.

It will be understood by those skilled in the art that the respective embodiments described above are to realize the specific embodiment of the present invention, And in actual applications, can to it, various changes can be made in the form and details, without departing from the spirit and scope of the present invention.

Claims (14)

1. the signal processing method of a Uplink Shared Channel, it is characterised in that comprise the steps of

The data obtained through single carrier conversion are mapped on the physical location of distribution；

According to being mapped to the data of each physical location, generate orthogonal frequency division multiplex OFDM symbol, obtain each physical location Time domain data；

The time domain data of the described each physical location obtained is carried out precoding, the time domain data obtained is mapped to each transmission On antenna port.

The signal processing method of Uplink Shared Channel the most according to claim 1, it is characterised in that described transmission antenna end Mouth number is more than or equal to the number of plies.

The signal processing method of Uplink Shared Channel the most according to claim 1, it is characterised in that described will be through single load Before the step that the data that wave conversion obtains are mapped on the physical location of distribution, also comprise the steps of

The binary information bit of input is carried out chnnel coding；

Data after being encoded by channel are converted to the pseudo-random data with same meaning and identical bit；

By the sequence after scrambling, it is mapped to modulation symbol；

Each code word is mapped on the layer of transmitting；

By the data decile of each layer in groups, one group of corresponding single-carrier frequency division multiple access SC-FDMA symbol, carry out single carrier change Change.

The signal processing method of Uplink Shared Channel the most according to claim 1, it is characterised in that described will be through single load The data that wave conversion obtains are mapped in the step on the physical location of distribution, and the data of each layer are mapped to the physics of correspondence In resource.

The signal processing method of Uplink Shared Channel the most according to claim 1, it is characterised in that described according to mapping To the data of each physical location, generate OFDM symbol, in the step of the time domain data obtaining each physical location, The time domain data generated is the time domain data of each layer.

The signal processing method of Uplink Shared Channel the most according to claim 5, it is characterised in that described according to mapping To the data of each physical location, generate orthogonal frequency division multiplex OFDM symbol, obtain the step of the time domain data of each physical location In Zhou, the calculation expression generating OFDM symbol is as follows:

Wherein,For being mapped in the t time domain data in the l OFDM symbol of layer υ,Expression rounds up, Represent and round downwards, 0≤t < (N_{CP, l}+N)×T_s, N_{CP, l}For circulating prefix-length, T_sFor basic unit of time, its size is (1/2048*15k) second, For up total resources block number,It is that a Resource Block comprises Subcarrier number, N=2048, Δ f=15kHz,For being mapped in the data on the l OFDM symbol kth subcarrier of layer υ.

The signal processing method of Uplink Shared Channel the most according to claim 5, it is characterised in that obtain described described To the time domain data of each physical location carry out precoding, the time domain data obtained is mapped on each transmission antenna port In step, described in the time domain data that obtains be the time domain data of each layer.

The signal processing method of Uplink Shared Channel the most according to claim 7, it is characterised in that obtain described described To the time domain data of each physical location carry out precoding, the time domain data obtained is mapped on each transmission antenna port In step, carry out precoding by below equation:

$\left[\begin{array}{c}{s}_l^{\left(0\right)}\left(t\right)\\ .\\ .\\ .\\ s_l^{(P-1)}\left(t\right)\end{array}\right]=W\left[\begin{array}{c}{s}_l^{\left(0\right)}\left(t\right)\\ .\\ .\\ .\\ s_l^{(\mathrm{\&upsi;}-1)}\left(t\right)\end{array}\right],$ $t=\mathrm{0,1},...,M_{\mathrm{symb}}^{\mathrm{ap}}-1,$ $M_{\mathrm{symb}}^{\mathrm{ap}}=M_{\mathrm{symb}}^{\mathrm{layer}}$

Wherein, $\left[\begin{array}{c}{s}_l^{\left(0\right)}\left(t\right)\\ .\\ .\\ .\\ s_l^{(\mathrm{\&upsi;}-1)}\left(t\right)\end{array}\right]$ For being mapped in the t time domain data in the l OFDM symbol of layer 0 to υ-1, $\left[\begin{array}{c}{s}_l^{\left(0\right)}\left(t\right)\\ .\\ .\\ .\\ s_l^{(P-1)}\left(t\right)\end{array}\right]$ For Antenna port 0 to p-1 is mapped in the t time domain data in the l OFDM symbol,For every layer of modulation symbol accommodated Number, W is code book, and the concrete index value of this code book is notified by base station, and its value set is relevant with number of plies υ and antenna port number P.

9. the signal processing apparatus of a Uplink Shared Channel, it is characterised in that comprise: physical location mapping block, orthogonal frequency Divide multiplexing OFDM symbol generation module, precoding module；

Wherein, described physical location mapping block for being mapped to the physical location of distribution by the data obtained through single carrier conversion On；

Described orthogonal frequency division multiplex OFDM symbol generation module is mapped to the data of each physical location for basis, generates orthogonal Frequency division multiplex OFDM symbol, obtains the time domain data of each physical location；

Described precoding module for the time domain data of the described each physical location obtained is carried out precoding, by obtain time Numeric field data is mapped on each transmission antenna port.

The signal processing apparatus of Uplink Shared Channel the most according to claim 9, it is characterised in that sending out of described device Antennas port number is more than or equal to the number of plies.

The signal processing apparatus of 11. Uplink Shared Channels according to claim 9, it is characterised in that also comprise: coding mould Block, scrambling module, modulation module, layer mapping block and single carrier conversion module；

Wherein, described coding module is for carrying out chnnel coding to the binary information bit of input；

Described scrambling module for by channel encode after data be converted to the puppet with same meaning and identical bit with Machine data；

Described modulation module is for by the sequence after scrambling, being mapped to modulation symbol；

Described layer mapping block for being mapped to the layer launched by each code word；

Described single carrier conversion module for by the data decile of each layer in groups, one group of corresponding single-carrier frequency division multiple access SC-FDMA symbol, carries out single carrier conversion.

The signal processing apparatus of 12. Uplink Shared Channels according to claim 9, it is characterised in that described physical location The input of mapping block is the data of each layer；

The data of each layer are mapped on the physical resource of correspondence by described physical location mapping block.

The signal processing apparatus of 13. Uplink Shared Channels according to claim 9, it is characterised in that described orthogonal frequency The time domain data that multiplexing OFDM symbol generation module generates is the time domain data of each layer.

The signal processing apparatus of 14. Uplink Shared Channels according to claim 12, it is characterised in that described precoding mould The input of block is the time domain data of each layer.