CN103475445A - Signal processing method and signal processing apparatus of uplink shared channel - Google Patents

Abstract

The invention relates to the field of mobile communication, and discloses a signal processing method and a signal processing apparatus of uplink shared channels. According to the signal processing method of uplink shared channels, the sequence of base-band processing is changed and the pre-coding is shifted backwards, so that operation times of physical location mapping and OFDM symbol generation are reduced to the number of levels from the number of antenna ports, the computational complexity is reduced, and accordingly the complexity of processing is reduced in the process of symbol-level signal processing of the uplink shared channels.

Description

The signal processing method of Uplink Shared Channel and device

Technical field

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

Background technology

Long Term Evolution (Long Term Evolution is called for short " LTE ") standard will have completed the formulation work of first version 3 of third generation partner program GPP Release8 the end of the year 2008, on the other hand, (the International Telecommunications Union of International Telecommunications Union, abbreviation " ITU ") held world's radio meeting in 2007, started super 3 g mobile communication system (Beyond Third Generation in mobile communication system, the distribution of frequency spectrum abbreviation " B3G "), and completed international mobile telephone system-2000(International Mobile TelecomSystem-2000 in 2008, abbreviation " IMT-2000 ") formulation of the minimum performance demand of the evolution of (being third generation 3G) system-IMT-Advanced IMT-Advanced (i.e. the 4th generation 4G) system and appraisal procedure etc., sent the circular of IMT-Advanced IMT-A technical standard collection.Technical advantage and the market competition advantage of third generation partner program 3GPP in order to maintain the standard, research and the formulation of LTE evolution standard LTE-Advanced have formally been started in April, 2008, and in June, 2010 by the assessment of ITU, formally become one of major technique of IMT-A October.The descending peak rate of LTE-A will reach 1000Mbps, above be about to reach 500Mbps.For reaching these targets, introduced a series of key technology, wherein, up number of transmit antennas is evolved to maximum 4 antennas by 1 and sends.Provided as shown in Figure 1 existing Uplink Shared Channel processing procedure, be described as follows successively:

Coding: i.e. chnnel coding, the binary message bit of input is carried out to the Turbo coding, the processing procedures such as rate-matched and code block cascade.

Scrambling: the data after channel coding are converted to the pseudo-random data with same meaning and identical bit, being input as of this module $b^{\left(q\right)}\left(0\right),...,b^{\left(q\right)}(M_{\mathrm{bit}}^{\left(q\right)}-1),$ After scrambling, be ${\tilde{b}}^{\left(q\right)}\left(0\right),...,{\tilde{b}}^{\left(q\right)}(M_{\mathrm{bit}}^{\left(q\right)}-1),$ Q is codeword number,

for total bit number of code word q, two code words of up maximum supports are 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)=(x ₁(n+N _c)+x ₂(n+N _c)) mod2,

x ₁(n+31)=(x ₁(n+3)+x ₁(n))mod2，

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

N _c=1600, x ₁the initiation sequence of sequence is: x ₁(0)=1, x ₁(n)=0, n=1,2 ..., 30, x ₂the initiation sequence of sequence is: $c_{\mathrm{init}}={\mathrm{\Σ}}_{i=0}^{360}{x}_2\left(i\right)\·2^i,$

n _rNTIfor terminal access of radio network temporary mark, n _sfor timeslot number,

for cell id.

Modulation: by the sequence after scrambling be mapped to modulation symbol; The LTE-A agreement is supported Quadrature Phase Shift Keying (Quadrature Phase Shift Keying, be called for short " QPSK "), three kinds of modulation systems such as hexadecimal quadrature Modulation and Amplitude Modulation 16QAM (Quadrature Amplitude Modulation) and 60 quaternary quadrature amplitude modulation 64QAM, the symbol after modulation is designated as

for the symbolic number after code word q modulation.

Layer mapping: the layer that each code word is mapped to emission is upper, and the data after mapping can be used x (i)=[x ⁽⁰⁾(i) ... x ^(υ-1)(i)] ^tmean,

υ is the number of plies,

for every layer of modulation symbol number held.The concrete available code word as shown in table 1 that realizes is calculated to the mapping relations of layer.

Table 1

Single carrier conversion: the data of every one deck are divided into

group, one group of corresponding single-carrier frequency division multiple access (Single Carrier-Frequency Division Multiple Access is called for short " SC-FDMA ") symbol, corresponding single carrier conversion 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,

the number of resource blocks taken for Physical Uplink Shared Channel (Physical Uplink Shared Channel, be called for short " PUSCH "),

it is the subcarrier number that a Resource Block comprises.

Precoding: the data transformation that will be mapped on layer becomes to be mapped to the data on physical resource, specifically is 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 0 to υ-1 i time domain data, $\left[\begin{array}{c}{z}^{\left(0\right)}\left(i\right)\\ .\\ .\\ .\\ z^{(P-1)}\left(i\right)\end{array}\right]$ For i time domain data of antenna port 0 to p-1, the concrete index value of code book W is notified by base station, and it is relevant that its value set and number of plies υ and antenna port are counted P.When υ=1, during P=1, W=1; All the other situations as table 2 to as shown in table 7, wherein, codebook set when table 2 is the single antenna transmission, codebook set when table 3 is the double antenna transmission, codebook set I when table 4 is four antennas transmissions, codebook set II when table 5 is four antennas transmissions, codebook set III when table 6 is four antennas transmissions, codebook set IV when table 7 is 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 mapping: by the data of precoding output, the physical location that is mapped to distribution according to the mode of time domain after first frequency domain gets on, and to unappropriated physical location zero filling.

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

Wherein, for antenna port p is mapped in t time domain data on l OFDM symbol,

expression rounds up,

mean to round 0≤t<(N downwards _{cP, l}+ N) * T _s, N _{cP, l}for circulating prefix-length, T _sfor basic chronomere, its size is (1/2048*15k) second,

for up total resources piece number,

be the subcarrier number that a Resource Block comprises, N=2048, Δ f=15kHz,

for antenna port p is mapped in the data on k subcarrier of l OFDM symbol, the Cyclic Prefix parameter of single-carrier frequency division multiple access SC-FDMA is as shown in table 8.

Table 8

Because the Uplink Shared Channel of LTE agreement is that single antenna sends, and the maximum number of transmit antennas of LTE-A agreement Uplink Shared Channel support is 4, and the number of plies is 1 ~ 4; If directly according to order computation as shown in Figure 1, in the situation that one deck four antennas, the up symbol level of LTE-A agreement is processed complexity and will be processed complexity than the up symbol level of LTE agreement and increase 3 times.Particularly, when number of transmit antennas is greater than the number of plies of layer mapping, the computation complexity of prior art is high, will be unfavorable for the specific implementation of LTE-A agreement.

Summary of the invention

The object of the present invention is to provide a kind of signal processing method and device of Uplink Shared Channel, make and reduce the complexity of processing in the symbol level signal processing of Uplink Shared Channel.

For solving the problems of the technologies described above, embodiments of the present invention provide a kind of signal processing method of Uplink Shared Channel, comprise following steps:

The data-mapping that will obtain through the single carrier conversion is to the physical location distributed;

According to the data that are mapped to each physical location, generating orthogonal frequency division multiplex OFDM symbol, obtain the time domain data of each physical location;

Time domain data to described each physical location obtained carries out precoding, and the time domain data obtained is mapped on each transmitting antenna port.

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

Wherein, the data-mapping that described physical location mapping block is used for obtaining through the single carrier conversion is to the physical location distributed;

Described orthogonal frequency division multiplex OFDM symbol generation module is for according to being mapped to the data of each physical location, and generating orthogonal frequency division multiplex OFDM symbol obtains the time domain data of each physical location;

Described precoding module is carried out precoding for the time domain data to described each physical location obtained, and the time domain data obtained is mapped on each transmitting antenna port.

Embodiment of the present invention in terms of existing technologies, order by the transposing Base-Band Processing, to after precoding, move, the number of run that physical location mapping and OFDM symbol are generated reduces to the number of plies by the antenna port number, reduced computational complexity, thereby reduced the complexity of processing in the symbol level signal processing of Uplink Shared Channel.

In addition, described transmitting antenna port number is greater than or equal to the number of plies.If the transmitting antenna port number is less than the number of plies, receiving terminal can't solve the transmitting terminal data, and therefore, the transmitting antenna port number is greater than or equal to the number of plies.

In addition, to before the step on the physical location distributed, also comprise following steps at the described data-mapping that will obtain through single carrier conversion:

Binary message bit to input carries out chnnel coding;

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

Sequence by after scrambling, be mapped to modulation symbol;

Each code word is mapped on the layer of emission;

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

Due to above-mentioned processing procedure similarly to the prior art, make embodiments of the present invention without through great structure or the change of processing method, can reach simply and effectively the purpose that reduces the complexity of processing.

In addition, at the described data-mapping that will obtain through single carrier conversion in the step on the physical location distributed, by the data-mapping of each layer to corresponding physical resource.

Be mapped to the data of each physical location in described basis, the generating orthogonal frequency division multiplexing symbol, obtain in the step of time domain data of each physical location, and the time domain data of generation is the time domain data of each layer.

Carry out precoding at the described time domain data to described each physical location obtained, the time domain data obtained is mapped in the step on each transmitting antenna port, the described time domain data obtained is the time domain data of each layer.

Owing to moving after the precoding processing process, so physical location mapping, the OFDM symbol generates and these three handled data of processing procedure of precoding are all the layer mapping data of each layer afterwards, again because the antenna port number is greater than or equal to the number of plies, so compared with prior art, the number of run that physical location mapping and OFDM symbol generate in processing procedure reduces to the number of plies by the antenna port number, thereby has reduced computational complexity.

The accompanying drawing explanation

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

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

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

Embodiment

For making the purpose, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, the embodiments of the present invention are explained in detail.Yet, persons of ordinary skill in the art may appreciate that in each execution mode of the present invention, in order to make the reader understand the application better, many ins and outs have been proposed.But, even without these ins and outs and the many variations based on following each execution mode and modification, also can realize each claim of the application technical scheme required for protection.

The first execution mode of the present invention relates to a kind of signal processing method of Uplink Shared Channel, by adjusting the Base-Band Processing order, to after precoding, move, the number of run that physical location mapping and OFDM symbol are generated reduces to the number of plies by the antenna port number, reduced computational complexity, thereby reduced the complexity of processing in the symbol level signal processing of Uplink Shared Channel.As shown in Figure 2, concrete steps are as follows for the flow process of the signal processing method of the Uplink Shared Channel that present embodiment provides:

Step 201, carry out chnnel coding to the binary message bit of inputting;

Step 202, be converted to the pseudo-random data with same meaning and identical bit by the data after the channel coding;

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

Step 204, be mapped to each code word on the layer of emission;

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

The step 201 of present embodiment, to 205 consistent with prior art, no longer is elaborated at this.Due to above-mentioned processing procedure similarly to the prior art, make present embodiment without through great structure or the change of processing method, can reach simply and effectively the purpose that reduces the complexity of processing.

Step 206, the data-mapping that will obtain through the single carrier conversion is to the physical location distributed.Due to when carrying out the single carrier conversion, by the data decile of every one deck in groups, one group of corresponding single-carrier frequency division multiple access SC-FDMA symbol, carry out the single carrier conversion, again owing to moving after the precoding processing process, therefore, in this step, be in the step of physical location mapping, input be the data of each layer, be also by the data-mapping of each layer to corresponding physical resource.

Step 207, according to the data that are mapped to each physical location, generating orthogonal frequency division multiplex OFDM symbol, obtain the time domain data of each physical location;

The computational methods that generate the OFDM symbol are still same as the prior art, but implication is slightly different, and the time domain data of generation is the time domain data of each layer, and expression is as follows:

Wherein,

for t time domain data on l the OFDM symbol that is mapped in layer υ,

expression rounds up,

mean to round 0≤t<(N downwards _{cP, l}+ N) * T _s, N _{cP, l}for circulating prefix-length, T _sfor basic chronomere, its size is (1/2048*15k) second, for up total resources piece number,

be the subcarrier number that a Resource Block comprises, N=2048, Δ f=15kHz,

for being mapped in the data of layer υ on k subcarrier of l OFDM symbol.

Step 208, carry out precoding to the time domain data of each physical location of obtaining, and the time domain data obtained is mapped on each transmitting antenna port; In the present embodiment, the time domain data that carries out precoding processing is the time domain data of each layer, and precoding processing can be expressed as:

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

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 t time domain data on l the OFDM symbol that is mapped in layer 0 to υ-1, $\left[\begin{array}{c}{s}_l^{\left(0\right)}\left(t\right)\\ .\\ .\\ .\\ s_l^{(P-1)}\left(t\right)\end{array}\right]$ T the time domain data be mapped on l OFDM symbol for antenna port 0 to p-1, for every layer of modulation symbol number held, W is code book, and the concrete index value of this code book is notified by base station, and it is relevant that its value set and number of plies υ and antenna port are counted P.The concrete value of W is same as the prior art, does not repeat them here.

The difference of present embodiment and prior art is after precoding, to move, physical unit mapping, OFDM symbol generate, the input of three steps of precoding, output data unlike the prior art, but the processing procedure of each step is identical.By moving after precoding module, the number of run that physical location mapping and OFDM symbol generate reduces to the number of plies by the antenna port number, therefore, reduced computational complexity, such as, the scene of the transmission diversity of individual layer four antennas, module and original ratio after layer mapping, only need to calculate once, need to calculate four times with prior art and compare, the complexity that physical location mapping and OFDM symbol generate will reduce nearly 75%.Especially to generate be that to process complexity in each processing procedure of Uplink Shared Channel relatively high to the OFDM symbol, when the number of plies sent is less than number of transmit antennas, can effectively reduce the processing complexity.

In addition, it is worth mentioning that, when carrying out precoding, each layer data of input is mapped to each transmitting antenna port and gets on, therefore, the antenna port number of transmission is more than or equal to the number of plies, otherwise receiving terminal can't solve the transmitting terminal data.

The step of top the whole bag of tricks is divided, and just in order being described clearly, can to merge into a step while realizing or some step is split, and is decomposed into a plurality of steps, as long as comprise identical logical relation, all in the protection range of this patent; To adding inessential modification in algorithm or in flow process or introducing inessential design, but the core design that does not change its algorithm and flow process is all in the protection range of this patent.

Second embodiment of the invention relates to a kind of signal processing apparatus of Uplink Shared Channel, as shown in Figure 3, comprise physics unit maps module, orthogonal frequency division multiplex OFDM symbol generation module, precoding module, these three modules are identical with the processing procedure of the corresponding module of prior art, but input, export the data difference.

Specifically, the data-mapping that the physical location mapping block is used for obtaining through the single carrier conversion is to the physical location distributed;

Orthogonal frequency division multiplex OFDM symbol generation module is for according to being mapped to the data of each physical location, and generating orthogonal frequency division multiplex OFDM symbol obtains the time domain data of each physical location;

Precoding module is carried out precoding for the time domain data of each physical location to obtaining, and the time domain data obtained is mapped on each transmitting antenna port.

Exist the module of difference with prior art except above-mentioned, 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 message bit of input;

Scrambling module is converted to the pseudo-random data with same meaning and identical bit for the data by after the channel coding;

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

Layer mapping block is for being mapped to each code word on the layer of emission;

The single carrier conversion module is used for by the data decile of every one deck in groups, and one group of corresponding single-carrier frequency division multiple access SC-FDMA symbol, carry out the single carrier conversion.

In the present embodiment, after the single carrier conversion module, be and then physical location mapping block and OFDM symbol generation module, therefore, the input of physical location mapping block is the data of each layer, the physical location mapping block by the data-mapping of each layer to corresponding physical resource; The time domain data that orthogonal frequency division multiplex OFDM symbol generation module generates is the time domain data of each layer.After moving on to OFDM symbol generation module after the precoding module quilt, therefore, the input of precoding module is the time domain data of each layer of OFDM symbol generation module generation.

In addition, it is worth mentioning that, if the transmitting antenna port number is less than the number of plies, receiving terminal can't solve the transmitting terminal data, and therefore, the transmitting antenna port number is greater than or equal to the number of plies.

Be not difficult to find, present embodiment is the system embodiment corresponding with the first execution mode, present embodiment can with the enforcement of working in coordination of the first execution mode.The correlation technique details of mentioning in the first execution mode is still effective in the present embodiment, in order to reduce repetition, repeats no more here.Correspondingly, the correlation technique details of mentioning in present embodiment also can be applicable in the first execution mode.

It is worth mentioning that, each module involved in present embodiment is logic module, and in actual applications, a logical block can be a physical location, can be also the part of a physical location, can also realize with the combination of a plurality of physical locations.In addition, for outstanding innovation part of the present invention, unit that will be not too not close with solving technical problem relation proposed by the invention in present embodiment is introduced, but this does not show in present embodiment not exist other unit.

Persons of ordinary skill in the art may appreciate that the respective embodiments described above are to realize specific embodiments of the invention, and in actual applications, can do various changes to it in the form and details, and without departing from the spirit and scope of the present invention.

Claims (14)

1. the signal processing method of a Uplink Shared Channel, is characterized in that, comprises following steps:

The data-mapping that will obtain through the single carrier conversion is to the physical location distributed;

According to the data that are mapped to each physical location, generating orthogonal frequency division multiplex OFDM symbol, obtain the time domain data of each physical location;

Time domain data to described each physical location obtained carries out precoding, and the time domain data obtained is mapped on each transmitting antenna port.

2. the signal processing method of Uplink Shared Channel according to claim 1, is characterized in that, described transmitting antenna port number is greater than or equal to the number of plies.

3. the signal processing method of Uplink Shared Channel according to claim 1, is characterized in that, at the described data-mapping that will obtain through single carrier conversion, to before the step on the physical location distributed, also comprises following steps:

Binary message bit to input carries out chnnel coding;

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

Sequence by after scrambling, be mapped to modulation symbol;

Each code word is mapped on the layer of emission;

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

4. the signal processing method of Uplink Shared Channel according to claim 1, is characterized in that, at the described data-mapping that will obtain through single carrier conversion in the step on the physical location distributed, by the data-mapping of each layer to corresponding physical resource.

5. the signal processing method of Uplink Shared Channel according to claim 1, it is characterized in that, be mapped to the data of each physical location in described basis, the generating orthogonal frequency division multiplexing symbol, obtain in the step of time domain data of each physical location, the time domain data of generation is the time domain data of each layer.

6. the signal processing method of Uplink Shared Channel according to claim 5, it is characterized in that, be mapped to the data of each physical location in described basis, generating orthogonal frequency division multiplex OFDM symbol, obtain in the step of time domain data of each physical location, the calculation expression that generates the OFDM symbol is as follows:

Wherein,

for t time domain data on l the OFDM symbol that is mapped in layer υ,

expression rounds up,

mean to round 0≤t<(N downwards _{cP, l}+ N) * T _s, N _{cP, l}for circulating prefix-length, T _sfor basic chronomere, its size is (1/2048*15k) second,

for up total resources piece number,

be the subcarrier number that a Resource Block comprises, N=2048, Δ f=15kHz,

for the data on k the subcarrier of l OFDM symbol that is mapped in layer υ.

7. the signal processing method of Uplink Shared Channel according to claim 5, it is characterized in that, carry out precoding at the described time domain data to described each physical location obtained, the time domain data obtained is mapped in the step on each transmitting antenna port, and the described time domain data obtained is the time domain data of each layer.

8. the signal processing method of Uplink Shared Channel according to claim 7, it is characterized in that, carry out precoding at the described time domain data to described each physical location obtained, the time domain data obtained is mapped in the step on each transmitting antenna port, by following formula, carries out precoding:

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

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 t time domain data on l the OFDM symbol that is mapped in layer 0 to υ-1, $\left[\begin{array}{c}{s}_l^{\left(0\right)}\left(t\right)\\ .\\ .\\ .\\ s_l^{(P-1)}\left(t\right)\end{array}\right]$ T the time domain data be mapped on l OFDM symbol for antenna port 0 to p-1,

for every layer of modulation symbol number held, W is code book, and the concrete index value of this code book is notified by base station, and it is relevant that its value set and number of plies υ and antenna port are counted P.

9. the signal processing apparatus of a Uplink Shared Channel, is characterized in that, comprises: physical location mapping block, orthogonal frequency division multiplex OFDM symbol generation module, precoding module;

Wherein, the data-mapping that described physical location mapping block is used for obtaining through the single carrier conversion is to the physical location distributed;

Described orthogonal frequency division multiplex OFDM symbol generation module is for according to being mapped to the data of each physical location, and generating orthogonal frequency division multiplex OFDM symbol obtains the time domain data of each physical location;

Described precoding module is carried out precoding for the time domain data to described each physical location obtained, and the time domain data obtained is mapped on each transmitting antenna port.

10. the signal processing apparatus of Uplink Shared Channel according to claim 9, is characterized in that, the transmitting antenna port number of described device is greater than or equal to the number of plies.

11. the signal processing apparatus of Uplink Shared Channel according to claim 9, is characterized in that, also comprises: coding module, scrambling module, modulation module, layer mapping block and single carrier conversion module;

Wherein, described coding module carries out chnnel coding for the binary message bit to input;

Described scrambling module is converted to the pseudo-random data with same meaning and identical bit for the data by after the channel coding;

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

Described layer mapping block is for being mapped to each code word on the layer of emission;

Described single carrier conversion module is used for by the data decile of every one deck in groups, and one group of corresponding single-carrier frequency division multiple access SC-FDMA symbol, carry out the single carrier conversion.

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

Described physical location mapping block by the data-mapping of each layer to corresponding physical resource.

13. the signal processing apparatus of Uplink Shared Channel according to claim 9, is characterized in that, the time domain data that described orthogonal frequency division multiplex OFDM symbol generation module generates is the time domain data of each layer.

14. the signal processing apparatus of Uplink Shared Channel according to claim 12, is characterized in that, the input of described precoding module is the time domain data of each layer.

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