CN101841504A

CN101841504A - Data interleaving communication method for multi-information stream communication

Info

Publication number: CN101841504A
Application number: CN200910047718A
Authority: CN
Inventors: 刘瑾; 朱旭东; 尤明礼; 吴绍权
Original assignee: Alcatel Lucent Shanghai Bell Co Ltd
Current assignee: Nokia Shanghai Bell Co Ltd
Priority date: 2009-03-16
Filing date: 2009-03-16
Publication date: 2010-09-22
Anticipated expiration: 2029-03-16
Also published as: CN101841504B; WO2010105541A1

Abstract

The invention provides a data interleaving communication method for multi-information stream communication in order to improve the diversity gain of a traditional multi-information stream orthogonal frequency division multiplexing (OFDM) communication system. A plurality of paths of a transmitter comprise a plurality of frequencies and/or a plurality of (physical or virtual) frequency resource blocks with not all the same antennas; each information stream corresponds to different paths respectively; the transmitter interleaves a part of information of at least one information stream with a part of information of at least one the other information stream so as to acquire an interleaved information sequence; and then the interleaved information sequence is subjected to subsequent treatment and transmitted through a corresponding path respectively. The method improves the diversity gain of the communication link, and can preferably maintain the low peak average specific characteristic when preferably applied to the OFDM system which is pre-encoded based on discrete Fourier transformation (DFT).

Description

The data interlace communication means that is used for multi-information flow communication

Technical field

The present invention relates to radio communication, relate in particular to multi-information flow communications such as many code words or multilayer.

Background technology

The communication system of 3GPP LTE-Advanced need be supported the bandwidth of 100MHz at present.Because so wide continuous frequency spectrum is difficult to find, so LTE-Advanced proposed demand that multiple spectra is integrated, is about to a plurality of discrete frequency spectrum gangs and uses, and realizes by a unified Base-Band Processing.For uplink, LTE-Advanced has defined the multi-access mode based on the OFDM of DFT precoding (DFT-precoded OFDM), transmitter corresponds to a plurality of discrete frequency spectrums on or same frequency spectrum continuously or discrete frequency Resource Block on through the symbol sebolic addressing after the symbol-modulated multi-information flow, wherein, each section frequency spectrum is known as a Component Carrier.The form of concrete several DFT-precoded OFDM transmitters is as accompanying drawing 1 (a) and (b) with (c).Fig. 1 (a) shows the block diagram of present sub-clustering DFT expansion OFDM (Clustered DFT-Spread-OFDM) transmitter, wherein, original bit is flowed through after Turbo coding, qam symbol modulation, DFT handle, and symbol is divided into two-way, and corresponds to two different frequency resource block F ₁And F ₂On.This two paths of signals is after separately subcarrier mapping processing and unification or the processing of OFDM separately (for example IFFT modulation), by an antenna TX ₁Send.In the many DFT expansions of a kind of single codeword OFDM (N x DFT-Spread-OFDM) transmitter, shown in Fig. 1 (b), primary data information (pdi) is divided into two paths of signals after through coding and qam symbol modulation, this two paths of signals is carried out DFT respectively to be handled, and then is mapped to two different frequency resource block F ₁And F ₂On carry out IFFT modulation, afterwards again through similarly passing through an antenna TX after the subsequent treatment ₁Send.In the many DFT expansions of a kind of many code words OFDM transmitter, shown in Fig. 1 (c), two different primary data information (pdi)s ad initio just correspond respectively to two group codings, symbol-modulated, DFT processing unit and respectively these two code words are handled, and the two paths of signals after the processing is mapped to two frequency resource block F respectively ₁And F ₂On carry out IFFT modulation, afterwards again through similarly passing through an antenna TX after the subsequent treatment ₁Send.Wherein, F ₁And F ₂Can be two sections different frequency spectrums, or two continuous or discrete frequency resources of same frequency spectrum inside.

In 3GPP LTE-Advanced standardization, insert technical specification TR36.814[R1-090544 for the uplink multi-address of big bandwidth] be defined as follows some contents:

-there is spatial reuse and do not existing under the situation of spatial reuse, the OFDM of DFT precoding is used for Physical Uplink Shared Channel (PUSCH);

-under the situation that has a plurality of Component carrier, each Component carrier has a DFT;

-each Component carrier supports the resource allocation of cline frequency and discontinuous frequency.

Under this requirement, the many codeword transmitter among the LTE-Advanced can directly be used the many DFT expansions of many code words OFDM transmitter.Under the situation that has added spatial reuse, this transmitter as shown in Figure 2, F wherein ₁And F ₂Be respectively two different Component carriers of expression.

In existing sub-clustering DFT expansion OFDM transmitter and many DFT expansion OFDM transmitter, a plurality of information flows correspond respectively to the communication path of appointment, as specified frequency resource and space resources, make diversity gain be subjected to certain limitation.

Summary of the invention

In order to improve the communication capacity with multi-information flow ofdm communication system, it is very necessary improving diversity gain.

According to a first aspect of the invention, providing a kind of is used in multi-information flow OFDM transmitter a plurality of information flows method for communicating of interlocking, wherein, transmitter has multipath, described multipath comprises the incomplete identical frequency resource block of a plurality of frequencies and/or a plurality of incomplete identical space resources, each information flow corresponds respectively to different paths, this method may further comprise the steps: a. is with the processing that interlocks of the partial information of the partial information of at least one information flow and other at least one information flows, to obtain the information sequence after staggered processing; B. described information sequence after staggered the processing is carried out subsequent treatment respectively, and send by corresponding path respectively.

According to a second aspect of the invention, a kind of method of handling from the staggered multiple signals of handling of the warp of a plurality of information flows of multi-information flow OFDM transmitter of being used in multi-information flow OFDM receiver is provided, wherein, this receiver has multipath, described multipath comprises the incomplete identical frequency resource block of a plurality of frequencies, each signal corresponds respectively to different paths, this method may further comprise the steps: A. carries out contrary staggered the processing to the partial information at least one road in the multiple signals that received and the partial information on another road at least, obtains through the contrary staggered information sequence of handling; B. described information sequence after contrary staggered the processing is carried out subsequent treatment respectively, reduction obtains described a plurality of information flow.

According to a third aspect of the present invention, providing a kind of is used in multi-information flow OFDM transmitter a plurality of information flows communicating devices of interlocking, wherein, transmitter has multipath, described multipath comprises the incomplete identical frequency resource block of a plurality of frequencies and/or a plurality of incomplete identical space resources, each information flow corresponds respectively to different paths, this device comprises: alternating device, be used for the processing that interlocks of the partial information of the partial information of at least one information flow and other at least one information flows, to obtain the information sequence after staggered processing; Processing unit is used for described information sequence after staggered the processing is carried out subsequent treatment respectively, and sends by corresponding path respectively.

According to a fourth aspect of the present invention, a kind of device of handling from the staggered multiple signals of handling of the warp of a plurality of information flows of multi-information flow OFDM transmitter of being used in multi-information flow OFDM receiver is provided, wherein, this receiver has multipath, described multipath comprises the incomplete identical frequency resource block of a plurality of frequencies, each signal corresponds respectively to different paths, this device comprises: contrary alternating device, be used for the partial information at least one road of the multiple signals that received and the partial information on another road are at least carried out contrary staggered the processing, obtain through the contrary staggered information sequence of handling; Deriving means is used for described information sequence after contrary staggered the processing is carried out subsequent treatment respectively, and reduction obtains described a plurality of information flow.

Preferably, described a plurality of information flow comprise following each: corresponding a plurality of symbols that a plurality of code words obtain through the code word relevant treatment; Corresponding a plurality of symbols that the pairing a plurality of layers of one or more code words obtain through the code word relevant treatment; Described multipath comprise following each: a plurality of corresponding to the frequency resource block the same space resource, that frequency is different; A plurality of corresponding to the frequency resource block different spaces resource, that frequency is identical respectively, wherein at least one space resources comprises at least two frequency resource block; A plurality of corresponding to the frequency resource block different spaces resource, that frequency is different.

According to embodiments of the invention, for multi-information flow OFDM transmitter is determined different frequency resource block and/or space resources, and be that unit is interleaved on the different frequency resource block and/or space resources with the information of a plurality of information flows with time slot or long piece or modulation symbol, to improve the diversity gain of transmitter.And the present invention is applied to can preferably keep its low peak average ratio characteristic based in the ofdm system of DFT precoding the time.

Description of drawings

By reading the detailed description of doing with reference to the following drawings that non-limiting example is done, above and other feature, purpose and advantage of the present invention will become more apparent:

Fig. 1 (a) and (b) and (c) be the schematic diagram of existing several DFT-Precoded OFDM multi-frequency transmitters;

Fig. 2 is the schematic diagram of a kind of multi-frequency multiple antenna transmitter of existing LTE-Advanced;

Fig. 3 (a) is according to one embodiment of present invention, and multi-frequency single antenna OFDM transmitter carries out the schematic diagram of data interlace after DFT handles;

Fig. 3 (b) is according to one embodiment of present invention, and multi-frequency single antenna OFDM receiver carries out the schematic diagram of data interlace after the qam symbol mapping;

Fig. 4 is according to still another embodiment of the invention, and multi-frequency single antenna OFDM receiver carries out the schematic diagram of data release of an interleave after the subcarrier inverse mapping is handled

Fig. 5 is according to another embodiment of the invention, and many antennas of multi-frequency OFDM transmitter carries out the schematic diagram of data interlace;

Fig. 6 (a) with (b) be according to still a further embodiment, many antennas of multi-frequency OFDM transmitter carries out the schematic diagram of data interlace;

Fig. 7 (a) and (b), (c), (d) and (e) be according to still another embodiment of the invention, many antennas of multi-frequency OFDM transmitter carries out the schematic diagram of data interlace.

In the accompanying drawing, identical or the similar identical or similar parts of accompanying drawing sign representative.

Embodiment

Below with reference to Fig. 3 to Fig. 7, each embodiment of the present invention is described in detail.

First embodiment

At first, to according to one aspect of the invention, the method for carrying out data interlace in the transmitter of many code words multi-frequency single antenna describes in detail.This transmitter comprises two groups respectively corresponding to frequency resource block F based on many DFT expansion OFDM transmitters ₁And F ₂Turbo coding, QAM mapping and DFT device, be used for respectively data message A and data message B being handled, by an antenna signal on two frequency resource block is sent at last.Two data messages before coding just with two frequency resource block F ₁And F ₂Corresponding respectively.In this embodiment, being that example describes on intersymbol error to two frequency resource block of transmitter with the code word of two data messages, be appreciated that, the present invention is not limited to this, transmitter can be with the intersymbol error of the code word of any a plurality of data messages on any a plurality of frequency resource block, to increase diversity gain.

In step S10, transmitter with the code word of data message A (being called for short code word A) through processings that interlock of the partial information of the information sequence after the code word relevant treatment and the partial information of the code word of data message B (being called for short code word B) after the code word relevant treatment, with the information sequence of acquisition after exchanging processing.Wherein, in the present embodiment, the code word relevant treatment is that the QAM mapping is handled and the DFT modulation treatment.

Concrete, as shown in Figure 3, transmitter will be corresponding to frequency resource block F ₁, the information A 2 of the time slot 2 of the subframe of the code word A of DFT after handling, and corresponding to frequency resource block F ₂, the information B2 of the time slot 2 in the subframe of the code word A of DFT after handling exchanges, to obtain the information sequence after staggered processing.Here, the code word after DFT handles is held with matrix, and code word is a matrix element, and matrix one is classified a DFT modulation symbol as, promptly long piece (Long Block), and some row are formed a frequency resource block time slot.In the present embodiment, this switching time slot is a unit.Be appreciated that transmitter can long piece be cross-over unit also.With time slot or long piece least unit in return, can not change the order of DFT pre-coded symbols, keep the low peak average ratio characteristic of many DFT expansion OFDM.Preferably, in order to reduce delay, present embodiment exchanges time slot two code words, that be in the same time or long piece; Be appreciated that also and can the time slot or the long piece of different time be exchanged.

Then, in step S11, transmitter carries out the subcarrier mapping respectively to the two-way information sequence after staggered the processing to be handled, and is mapped to frequency resource block F ₁And F ₂, and carry out IFFT and handle (being the OFDM modulation), and carry out follow-up add CP (Cyclic Prefix), radio frequency (RF) and handle and wait the emission processing after, send to corresponding receiver.Wherein, in the transmitter that satisfies LTE-Advanced, frequency resource block F ₁And F ₂Be two different Component Carrier, IFFT handle can by two independently the IFFT module carry out; For other transmitters, frequency resource block F ₁And F ₂Can be the continuous or discrete carrier frequency among the same Component Carrier, IFFT handle can by two independently the IFFT module carry out, perhaps, also can be undertaken by same IFFT module when two frequency consecutive hourss.Preferably, the number of subcarriers in two frequency resource block is identical.

Like this, transmitter crisscrosses different frequency resource block with code word A and B, has improved the diversity gain of transmitter.

Similar with above method embodiment, in device embodiment, transmitter comprises that one is used for a plurality of information flows communicating devices of interlocking, and it comprises an alternating device, is used to be similar to the work of above step S10; Also comprise a processing unit, be used to be similar to the work of above step S11.

Be appreciated that among the above embodiment that two groups of Turbo codings, QAM mapping and DFT modules can be identical; Also can adopt different coding speed respectively, 1/2 and 1/3 Turbo encoder for example, and/or adopt different sign map modes, symbol encoder of QPSK and 16QAM etc. for example, this is within protection scope of the present invention equally.

Above data interlace occurs in after the DFT, and one of ordinary skill in the art is further appreciated that present embodiment also has following several interlace modes:

1. after the QAM mapping, interlock.Concrete, in step S10, transmitter exchanges the part symbol after the QAM modulation treatment through part symbol after the QAM modulation treatment and code word B of code word A, to obtain the information sequence after staggered the processing.Here, the symbol after the QAM mapping represents that with matrix form wherein the line display time, tabulation shows that frequency, matrix element are each constellation point modulation symbol, and one classifies a DFT modulation symbol as, promptly long piece, and some row are formed a frequency resource block time slot.When exchanging, can be minimum cross-over unit with constellation point modulation symbol or DFT modulation symbol or frequency resource block time slot.It is cross-over unit with the constellation point modulation symbol that Fig. 3 (b) shows one, carries out the schematic diagram of intersymbol error, and wherein, constellation point modulation symbol A21 and B21, A12 and B12, A32 and B32, A23 and B23 etc. exchange respectively.Then, in step S11, transmitter carries out follow-up DFT processing, subcarrier mapping processing and OFDM modulation treatment respectively to the information sequence after staggered the processing.Be appreciated that the interlace mode among Fig. 3 (b) only is a kind of example, the present invention is not limited to this.

2. after the subcarrier mapping, interlock.Concrete, in step S10, transmitter is by exchanging part symbol code word A, after the subcarrier mapping is handled and part symbol code word B, after the subcarrier mapping is handled, to obtain the information sequence after staggered the processing, wherein, be minimum cross-over unit with DFT modulation symbol or frequency resource block time slot.Then, in step S11, transmitter carries out the OFDM modulation treatment respectively to the information sequence after staggered the processing.

3. after the OFDM modulation, interlock.Concrete, in step S10, transmitter by with code word A, exchange through part symbol part symbol after the OFDM modulation treatment and code word B, after the OFDM modulation treatment is handled, to obtain the information sequence after staggered the processing, wherein, be minimum cross-over unit with OFDM modulation symbol or frequency resource block time slot.Then, in step S11, transmitter carries out the OFDM modulation treatment respectively to the information sequence after staggered the processing.

Be appreciated that present embodiment only shows the application of the present invention in a kind of many code words of DFT-Precoded OFDM multi-frequency single antenna transmitter that comprises encoder, Symbol modulator, DFT, subcarrier mapping and OFDM modulation.In other many code words multi-frequency single antenna transmitter, for example saved in the OFDM transmitter of DFT processing, the present invention is suitable equally, so that a plurality of code words are crisscrossed on a plurality of frequency resource block, improves diversity gain.One of ordinary skill in the art can be determined the application mode of the present invention in other many code words multi-frequency single antenna transmitter under the instruction of present embodiment, the present invention does not do at this and gives unnecessary details.

Because each module of transmitter and receiver and function symmetry thereof, one of ordinary skill in the art can go out the realization of present embodiment at multi-information flow OFDM receiver by rational prediction on the basis of the instruction of the embodiment of above transmitter terminal.Shown in Fig. 3 (b), the signal from two frequency resource block of transmitter that receives on the antenna Rx at first carries out and the corresponding OFDM demodulation of OFDM modulation, then carry out shining upon corresponding subcarrier inverse mapping and handle, and obtain two-way respectively by the staggered signal that forms of the part signal of code word A and code word B with subcarrier.Afterwards, receiver carries out handling the DFT modulation sequence of reduction code word A and code word B with the corresponding release of an interleave of above staggered processing.Then, again respectively to the DFT modulation sequence of code word A and code word B carry out the IDFT corresponding with DFT handle, with the corresponding QAM demodulation process of QAM modulation and with the Turbo corresponding processing such as Turbo decoding processing of encoding, reduce and obtain primary data information (pdi) A and data message B.Angle from device, multi-information flow OFDM receiver comprises and is used for the device handled from the staggered multiple signals of handling of the warp of a plurality of information flows of multi-information flow OFDM transmitter, wherein, this device comprises a contrary alternating device and a deriving means that is similar to above subsequent treatment that is similar to superinverse staggered place reason.

More than each embodiment be that example is described so that code word is interlocked.In LTE, transmitter can carry out layer mapping (Layer Mapping) for the code word that obtains behind the Turbo coding, and a code word is mapped as several layers, then respectively several layers is carried out code word relevant treatment such as symbol-modulated.The present invention is equally applicable to this situation, and is concrete, can be after layer mapping, after the QAM mapping, DFT handle after, after the subcarrier mapping or after the OFDM modulation its symbol is interlocked.Wherein, for the processing that after layer mapping, interlocks, transmitter by with the partial data at least of one deck at least at least one code word, that handle through layer mapping and other at least one code words, through the processing that interlocks of the partial data at least of one deck at least of layer mapping processing, to obtain the information sequence after staggered the processing, wherein, the staggered processing with bit is minimum cross-over unit, then to the information sequence after staggered the processing carry out respectively that symbol-modulated is handled, DFT handles, subcarrier mapping processing and OFDM modulation treatment.For after QAM mapping, DFT handle after, after the subcarrier mapping or OFDM modulate laggard line interlacing, similar with above embodiment.One of ordinary skill in the art can be under the instruction of above embodiment, and reasonable prediction goes out the implementation of the present invention when layer data is interlocked, and the present invention does not do at this and gives unnecessary details.

Second embodiment

Here, to according to a further aspect of the present invention, the method for carrying out data interlace in the transmitter of the many antennas of many code words multi-frequency describes in detail.This transmitter as shown in Figure 5, comprises corresponding respectively to frequency resource block F based on many DFT expansion OFDM transmitters ₁And F ₂Two groups of Turbo codings, QAM mapping, DFT device, IFFT device, OFDM modulating device and antennas, be used for respectively data message A and data message B being handled, two data messages before coding just with two frequency resource block F ₁And F ₂Corresponding respectively.Two antenna Tx1 and Tx2 send the signal on two frequency resource block respectively.The general technology of this area is appreciated that these two antennas can be physical antennas, also can be virtual-antenna etc.

Similar with above embodiment, in step S10, transmitter will be after DFT handles code word A subframe time slot 2 information A 2 with handle through DFT after the information B2 of time slot 2 of subframe of code word B processings that interlock, to obtain the information sequence after exchanging processing.

In step S11, transmitter is mapped to frequency resource block F respectively to the two-way information sequence after staggered the processing ₁And F ₂, and carry out IFFT and handle (OFDM modulation treatment), and send to corresponding receiver by two antenna Tx1 and Tx2 respectively.Present embodiment is applicable to that also with long piece be cross-over unit.With time slot or long piece least unit in return, can not change the order of DFT pre-coded symbols, keep the low peak average ratio characteristic of many DFT expansion OFDM.

Preferably, two frequency resource block F ₁And F ₂In number of subcarriers identical.

Similar with first embodiment, except carrying out after DFT the data interlace, the present invention also is applicable to after the QAM mapping and interlocks, or interlocks after IFFT, and situation such as interlock after OFDM modulates, and here do not give unnecessary details one by one.One of ordinary skill in the art should be able to obtain present embodiment implementation in these cases under the instruction of present embodiment.

Because each module of transmitter and receiver and function symmetry thereof, one of ordinary skill in the art is on the basis of the instruction of the embodiment of above transmitter terminal, can go out the realization of present embodiment at the method flow and the device of receiver end by rational prediction, this specification is not done at this and is given unnecessary details.

The 3rd embodiment

Here, will be to another aspect according to the present invention, the method for carrying out data interlace in the transmitter of the many antennas of many code words multi-frequency describes in detail.Wherein, this transmitter is based on sub-clustering DFT expansion OFDM transmitter, shown in Fig. 6 (a), two data message A are corresponding with Tx2 with two antenna Tx1 respectively with B, and by being divided into two-way respectively after separately coding, sign map and the DFT modulation treatment, each Lu Yuyi frequency resource block correspondence, the signal of two frequency resource block of every antenna transmission.

The code word of data message A (or claiming code word A) is divided into the signal A1 of time slot 1 and signal A2 and the signal A1 ' and the A2 ' two-way of time slot 2 after DFT handles, two-way corresponds respectively to the frequency resource block F of antenna Tx1 ₁And F ₂Similarly, the code word of data message B (or claiming code word B) is divided into the signal B1 of time slot 1 and signal B2 and the signal B1 ' and the B2 ' two-way of time slot 2 after DFT handles, and two-way corresponds respectively to the frequency resource block F of antenna Tx2 ₁And F ₂

In one case, shown in Fig. 6 (a), in step S10, transmitter with code word A, corresponding to frequency resource block F ₁Information A 2 and code word B, corresponding to frequency resource block F ₁Information B2 exchange; With code word A, corresponding to frequency resource block F ₂Information A 2 ' and code word B, corresponding to frequency resource block F ₂Information B2 ' exchange.Be appreciated that transmitter can long piece be that cross-over unit exchanges also.With time slot or long piece least unit in return, can not change the order of DFT pre-coded symbols, keep the low peak average ratio characteristic of sub-clustering DFT expansion OFDM.

Then, in step S11, transmitter is mapped to frequency resource block F respectively to four road information sequences after staggered the processing ₁And F ₂, and carry out IFFT and handle (being the OFDM modulation treatment), and send to corresponding receiver.

Like this, transmitter crisscrosses different space resourcess with A1 and A2, A1 ' and A2 ', B1 and B2 and B1 ' and each information of B2 ', has improved the diversity gain of transmitter.

In another case, shown in Fig. 6 (b), in step S10, transmitter with code word A, corresponding to frequency resource block F ₁The information of information A 2 and code word B, corresponding to frequency resource block F ₂The information exchange of information B2 '; With code word A, corresponding to frequency resource block F ₂The information of information A 2 ' and code word B, corresponding to frequency resource block F ₁The information exchange of information B2.Be appreciated that transmitter can long piece be that cross-over unit exchanges also.With time slot or long piece least unit in return, can not change the order of DFT pre-coded symbols, keep the low peak average ratio characteristic of sub-clustering DFT expansion OFDM.

Then, in step S11, transmitter is mapped in frequency resource block F respectively to four road information sequences after staggered the processing ₁And F ₂On, and carry out IFFT and handle (being the OFDM modulation treatment), and send to corresponding receiver.

Like this, transmitter crisscrosses different frequency resources and space resources with A1 and A2, A1 ' and A2 ', B1 and B2 and B1 ' and each information of B2 ', has improved the diversity gain of transmitter.

In this transmitter, similar with first embodiment, except after DFT, carrying out the data interlace, the present invention also is applicable to after layer mapping and interlocks, after the QAM mapping, interlock, or after subcarrier mapping, interlock, and situation such as after OFDM modulates, interlock, here do not give unnecessary details one by one.It should be noted that in this transmitter, after subcarrier mapping, or the information A 1 of each time slot that can improve each code word of after the OFDM modulation, interlocking and the diversity gain of A2, A1 ' and A2 ', B1 and B2 and B1 ' and B2 '; After the QAM mapping, interlocking, can improve the diversity gain of code word A and B.Should be able under the instruction of present embodiment, obtain present embodiment implementation in these cases with one of ordinary skill in the art.

Because each module of transmitter and receiver and function symmetry thereof, one of ordinary skill in the art is on the basis of the instruction of the embodiment of above transmitter terminal, can go out method flow and the device realization of present embodiment at receiver end by rational prediction, this specification is not done at this and is given unnecessary details.

The 4th embodiment

Here, will be to another aspect according to the present invention, the method for carrying out data interlace in the transmitter of the many antennas of many code words multi-frequency describes in detail.Wherein, this transmitter is based on many DFT expansion OFDM transmitters, and shown in Fig. 6 (a), two code word A are corresponding with Tx2 with two antenna Tx1 respectively with B, and by being divided into two-way respectively after separately coding, the sign map, each Lu Yuyi frequency resource block is corresponding and carry out DFT respectively.The signal of two frequency resource block of every antenna transmission.

One road signal of code word A shunt after sign map is handled the information A 1 of back formation time slot 1 and the information A 2 of time slot 2 at DFT, and another road forms information A 1 ' and A2 ' in DFT processing back, and two groups of signals correspond respectively to the frequency resource block F of antenna Tx1 ₁And F ₂Similarly, code word B is divided into information B1 and B2 and information B1 ' and B2 ' two-way after DFT handles, and two-way corresponds respectively to the frequency resource block F of antenna Tx2 ₁And F ₂

In one case, shown in Fig. 6 (a), in step S10, transmitter with code word A, corresponding to frequency resource block F ₁The information of information A 2 and code word B, corresponding to frequency resource block F ₁The information exchange of information B2; With code word A, corresponding to frequency resource block F ₂Information A 2 ' and code word B, corresponding to frequency resource block F ₂Information B2 ' exchange.Be appreciated that transmitter can long piece be that cross-over unit exchanges also.With time slot or long piece least unit in return, can not change the order of DFT pre-coded symbols, keep the low peak average ratio characteristic of many DFT expansion OFDM.

Then, in step S11, transmitter is mapped to frequency resource block F respectively to four road information sequences after staggered the processing ₁And F ₂, and carry out IFFT and handle, and send to corresponding receiver after CP and RF handle through inserting.

In another case, shown in Fig. 6 (b), in step S10, transmitter with code word A, corresponding to frequency resource block F ₁Information A 2 and code word B, corresponding to frequency resource block F ₂Information B2 ' exchange; With code word A, corresponding to frequency resource block F ₂Information A 2 ' and code word B, corresponding to frequency resource block F ₁Information B2 exchange.Be appreciated that transmitter can long piece be that cross-over unit exchanges also.

Then, in step S11, transmitter is mapped to frequency resource block F respectively to four road information sequences after staggered the processing ₁And F ₂, carry out IFFT and handle, and send to corresponding receiver.

In this transmitter, similar with first embodiment, except after DFT, carrying out the data interlace, the present invention also is applicable to after layer mapping and interlocks, interlock after the QAM mapping, interlock in subcarrier mapping, or situation such as after the OFDM modulation, interlock, here do not give unnecessary details one by one.It should be noted that in this transmitter, after subcarrier mapping, or the information A 1 of each time slot that can improve each code word of OFDM after, interlocking and the diversity gain of A2, A1 ' and A2 ', B1 and B2 and B1 ' and B2 '; After the QAM mapping, interlock, can improve the diversity gain of code word A and B.Should be able under the instruction of above present embodiment, obtain present embodiment implementation in these cases with one of ordinary skill in the art.

The 5th embodiment

Here, will be to another aspect according to the present invention, the method for carrying out data interlace in the transmitter of the many antennas of many code words multi-frequency describes in detail.Wherein, this transmitter is based on many DFT expansion OFDM transmitters, and shown in Fig. 7 (a), two data message A are corresponding with antenna Tx1 with B, and respectively with frequency resource block F ₁And F ₂Correspondence, and handle by separately coding, sign map, DFT respectively; In addition two data message C are corresponding with antenna Tx2 with D, and respectively with frequency resource block F ₁And F ₂Correspondence, and handle by separately coding, sign map, DFT respectively.The signal of two frequency resource block of every antenna transmission.

The code word of data message A (being called for short code word A) is handled the information A 1 of back formation time slot 1 and the information A 2 of time slot 2 at DFT, the code word of data message B (being called for short code word B) is handled back formation information B1 and B2 at DFT, and two groups of signals correspond respectively to the frequency resource block F of antenna Tx1 ₁And F ₂Similarly, the code word of data message C (being called for short code word C) is divided into information C1 and C2 after DFT handles, and the code word of data message D (being called for short code word D) is divided into information D 1 and D2 after DFT handles, and two-way corresponds respectively to the frequency resource block F of antenna Tx2 ₁And F ₂

Shown in Fig. 7 (a), in step S10, transmitter with code word A, corresponding to frequency resource block F ₁The information of information A 2 and code word B, corresponding to frequency resource block F ₂The information exchange of information B2; With code word C, corresponding to frequency resource block F ₁Information C2 and code word D, corresponding to frequency resource block F ₂Information D 2 exchange.

Then, in step S11, transmitter is mapped to frequency resource block F respectively to four road information sequences after staggered the processing ₁And F ₂, and carry out the OFDM modulation treatment, and send to corresponding receiver.

Like this, transmitter crisscrosses different frequency resources with A1 with A2, B1 and each information of B2, and C1 and C2 and D1 and each information of D2 are crisscrossed different frequency resources, has improved the diversity gain of transmitter.

In another case, shown in Fig. 7 (b), in step S10, transmitter with code word A, corresponding to the information A 2 of antenna Tx1 and code word C, corresponding to the information C2 exchange of antenna Tx2; With code word B, corresponding to the information B2 of antenna Tx1 and code word D, corresponding to information D 2 exchanges of antenna Tx2.

Then, in step S11, transmitter is mapped to frequency resource block F respectively to four road information sequences after staggered the processing ₁And F ₂, and carry out IFFT and handle, and send to corresponding receiver.

Like this, transmitter crisscrosses different space resourcess with A1 with A2, C1 and each information of C2, and B1 is crisscrossed different space resourcess with B2, D1 and each information of D2, has improved the diversity gain of transmitter.

Under another situation, shown in Fig. 7 (c), in step S10, transmitter with code word A, corresponding to the frequency resource block F of antenna Tx1 ₁Information A 2 and code word D, corresponding to the frequency resource block F of antenna Tx2 ₂Information D 2 exchange; With code word B, corresponding to the frequency resource block F of antenna Tx1 ₂Information B2 and code word C, corresponding to the frequency resource block F of antenna Tx2 ₁Information C2 exchange.

Like this, transmitter crisscrosses different space resourcess and frequency resource with A1 with A2, D1 and each information of D2, and B1 is crisscrossed different space resourcess and frequency resource with B2, C1 and each information of C2, has improved the diversity gain of transmitter.

Under another situation, shown in Fig. 7 (d), in step S10, transmitter with code word A, corresponding to frequency resource block F ₁Information A 2 place code word B, corresponding to frequency resource block F ₂The position of information B2; With code word B, corresponding to the frequency resource block F of antenna Tx1 ₂Information B2 place code word C, corresponding to the frequency resource block F of antenna Tx2 ₁The position of information C2; With information C2 place code word D, corresponding to the frequency resource block F of antenna Tx2 ₂The position of information D 2; Information D 2 is placed the position of A2.

Like this, transmitter crisscrosses different frequency resources with A1 with A2, C1 and each information of C2, and B1 is crisscrossed different space resourcess and frequency resource with B2, D1 and each information of D2, has improved the diversity gain of transmitter.

In yet another embodiment, transmitter is with the unit littler than the time slot processing that interlocks.Shown in Fig. 7 (e), a time slot of each code word is further divided into two sections, and each section can constitute by 3 or 4 long.

Because staggered unit diminishes, the staggered granularity of handling can obtain a nearlyer step ground and improve.In step S 10, transmitter is with the position of the section A2 section of placing B2, with the position of the section B2 section of placing C2, with the position of the section C2 section of placing D2, with the original position of the section D2 section of placing A2; And with the position of the section A3 section of placing C2, with the position of the section B3 section of placing D3, with the original position of the section C3 section of placing A3, with the original position of the section D3 section of placing B3; Also with the position of the section A4 section of placing D4, with the original position of the section B4 section of placing A4, with the original position of the section C4 section of placing B4, with the original position of the section D4 section of placing C4.

Like this, transmitter crisscrosses different space resourcess and frequency resource with code word A, B, C and D, has improved the diversity gain of transmitter.

Be appreciated that transmitter can further improve diversity gain based on long piece as staggered unit.With time slot or long piece serves as that minimum staggered unit carries out data interlace, can not change the order of DFT pre-coded symbols, keeps the low peak average ratio characteristic of many DFT expansion OFDM.

In this transmitter, similar with first embodiment, except after DFT, carrying out the data interlace, the present invention also is applicable to after the QAM mapping and interlocks, or after subcarrier mapping, interlock, and situation such as after OFDM modulates, interlock, here do not give unnecessary details one by one.It should be noted that in this transmitter, after subcarrier mapping, or the diversity gain of the information of each time slot that can improve each code word of after OFDM, interlocking; After the QAM mapping, interlock, can improve the diversity gain of each code word.Should be able under the instruction of above present embodiment, obtain present embodiment implementation in these cases with one of ordinary skill in the art.

In above embodiment, the identical and frequency values of the frequency resource number of blocks on two antennas equates respectively, is appreciated that the present invention is not limited to this situation.In the frequency resource number of blocks difference of two antennas, when for example Tx1 and Tx2 had 1 and 3 frequency resource block respectively, the present invention can crisscross the information sequence of each code word on these two space resourcess and/or its frequency resource equally.In addition, two antennas can use same Component Carrier, also can use different Component Carrier, and the present invention does not do at this and gives unnecessary details.

Be appreciated that; more than the interlace mode of QAM modulation symbol shown in each embodiment, DFT modulation symbol, long piece and time slot only be some examples; the present invention is not limited to this several specific interlace modes, and any staggered or interleaving mode that can allow information flow be distributed in the mulitpath all is in protection scope of the present invention.

More than the specific embodiment of the present invention is described.Need to prove that the present invention is not limited to above-mentioned specific implementations, those skilled in the art can make various modification or modification within the scope of the appended claims.

Claims

1. one kind is used in multi-information flow OFDM transmitter a plurality of information flows method for communicating of interlocking, wherein, transmitter has multipath, described multipath comprises the incomplete identical frequency resource block of a plurality of frequencies and/or a plurality of incomplete identical space resources, each information flow corresponds respectively to different paths, and this method may further comprise the steps:

A. the processing that the partial information of the partial information of at least one information flow and other at least one information flows interlocked is to obtain the information sequence after staggered processing;

B. described information sequence after staggered the processing is carried out subsequent treatment respectively, and send by corresponding path respectively.

2. method according to claim 1, wherein, described a plurality of information flows comprise following each:

Corresponding a plurality of symbols that-a plurality of code words obtain through the code word relevant treatment;

Corresponding a plurality of symbols that the pairing a plurality of layers of-one or more code words obtain through the code word relevant treatment;

Described multipath comprise following each:

-a plurality of corresponding to the frequency resource block the same space resource, that frequency is different;

-a plurality of corresponding to the frequency resource block different spaces resource, that frequency is identical respectively, wherein at least one space resources comprises at least two frequency resource block;

-a plurality of corresponding to the frequency resource block different spaces resource, that frequency is different.

3. method according to claim 2, wherein, described code word relevant treatment comprises:

The mapping of-layer handled;

-symbol-modulated is handled;

-DFT modulation treatment;

The mapping of-subcarrier is handled;

-OFDM modulation treatment.

4. method according to claim 2, wherein, described each information flow satisfies following arbitrary condition respectively:

-corresponding with a frequency resource block before described code word relevant treatment;

After handling, the mapping of-layer be divided into multichannel, each Lu Yuyi frequency resource block correspondence;

-symbol-modulated is divided into multichannel, each Lu Yuyi frequency resource block correspondence after handling;

Be divided into multichannel after the-DFT modulation treatment, each Lu Yuyi frequency resource block correspondence.

5. method according to claim 3 is characterized in that, described code word relevant treatment is that layer mapping handled, and described step a may further comprise the steps:

-by with the partial data at least of one deck at least at least one code word, that handle through layer mapping and other at least one code words, through the processing that interlocks of the partial data at least of one deck at least of layer mapping processing, to obtain described information sequence after staggered the processing, wherein, described staggered processing is minimum cross-over unit with bit;

Wherein, described step b comprises: described information sequence through interlocking after handling is carried out symbol-modulated processing, DFT processing, subcarrier mapping processing and OFDM modulation treatment respectively.

6. method according to claim 3 is characterized in that, described code word relevant treatment is that symbol-modulated is handled, and described step a may further comprise the steps:

-by processing that part symbol part symbol at least one information flow, after symbol-modulated is handled and other at least one information flows, after symbol-modulated is handled is interlocked, to obtain described information sequence after staggered the processing, wherein, described staggered processing is minimum cross-over unit with constellation point modulation symbol or DFT modulation symbol or frequency resource block time slot;

Wherein, described step b comprises: described information sequence after staggered the processing is carried out follow-up DFT processing, subcarrier mapping processing and OFDM modulation treatment respectively.

7. method according to claim 3, wherein, described code word relevant treatment is the DFT modulation treatment, described step a further comprises the steps:

-by with at least one information flow, through the part symbol part symbol after the DFT modulation treatment and other at least one information flows, after the DFT modulation treatment the processing that interlocks, to obtain described information sequence after staggered the processing, wherein, described staggered processing is minimum cross-over unit with DFT modulation symbol or frequency resource block time slot;

Described step b also comprises: described information sequence after staggered the processing is carried out the subcarrier mapping respectively handle and the OFDM modulation treatment.

8. method according to claim 7, wherein, described multipath is a plurality of corresponding to the frequency resource block the same space resource, that frequency is different, or corresponding to the frequency resource block different spaces resource, that frequency is different, each information flow is corresponding one by one with each frequency resource block before described code word relevant treatment respectively, described staggered be treated to the part symbol of a code word and another code word, exchange or be substituted into its position corresponding to the part symbol of the frequency resource block of different frequency.

9. method according to claim 7, wherein, described multipath is a frequency resource block that a plurality of space resourcess comprise, that frequency is identical respectively, each information flow is corresponding one by one with each frequency resource block before described code word relevant treatment respectively, described staggered be treated to the part symbol of a code word and another code word, exchange or be substituted into its position corresponding to the identical and/or different frequency of different spaces resource or corresponding to the part symbol of the frequency resource block of same space resource and different frequency.

10. method according to claim 7, wherein, described multipath is a frequency resource block that a plurality of space resourcess comprise, that frequency is identical respectively, each information flow is divided into multiple signals respectively after symbol-modulated is handled, each frequency resource block in each road signal of a code word and the space resources is corresponding, described staggered be treated to the part symbol of a code word and another code word, exchange or be substituted into its position corresponding to the part symbol of the frequency resource block of the identical or different frequency of another space resources.

11. method according to claim 6, wherein, described multipath is a frequency resource block that a plurality of space resourcess comprise, that frequency is identical respectively, each information flow is divided into multichannel respectively after symbol-modulated processing and DFT modulation treatment, each frequency resource block correspondence of each Lu Yuyi space resources of a code word, described staggered be treated to the part symbol of a code word and another code word, exchange or be substituted into its position corresponding to the part symbol of the frequency resource block of the identical or different frequency of another space resources.

12. method according to claim 3, wherein, described code word relevant treatment is included as the subcarrier mapping and handles, and described step a is further comprising the steps of:

-by processing that part symbol part symbol at least one code word, after the subcarrier mapping is handled and other at least one code words, after the subcarrier mapping is handled is interlocked, to obtain the information sequence after staggered the processing, wherein, described staggered processing is minimum cross-over unit with DFT modulation symbol or frequency resource block time slot;

Wherein, described step b also comprises: the information sequence after staggered the processing is carried out the OFDM modulation treatment respectively.

13. method according to claim 3, wherein, described code word relevant treatment is the OFDM modulation treatment, and described step a is further comprising the steps of:

-by with at least one information flow, through the part symbol part symbol after the OFDM modulation treatment and other at least one information flows, after the OFDM modulation treatment the processing that interlocks, to obtain described information sequence after staggered the processing, wherein, described staggered processing is minimum cross-over unit with OFDM modulation symbol or frequency resource block time slot;

Wherein, described step b also comprises: described information sequence after staggered the processing is carried out subsequent treatment respectively.

14. one kind is used for the method handled from the staggered multiple signals of handling of the warp of a plurality of information flows of multi-information flow OFDM transmitter in multi-information flow OFDM receiver, wherein, this receiver has multipath, described multipath comprises the incomplete identical frequency resource block of a plurality of frequencies, each signal corresponds respectively to different paths, and this method may further comprise the steps:

A carries out contrary staggered the processing to the partial information at least one road in the multiple signals that received and the partial information on another road at least, obtains through the contrary staggered information sequence of handling;

B carries out subsequent treatment respectively to described information sequence after contrary staggered the processing, and reduction obtains described a plurality of information flow.

15. method according to claim 14, wherein, described a plurality of information flows comprise following each:

Described multipath comprise following each:

16. method according to claim 15, wherein, described receiver carries out contrary staggered the processing to the multiple signals after following each processing:

-OFDM demodulation process;

The inverse mapping of-subcarrier is handled;

-IDFT demodulation process;

-symbol demodulation is handled;

The inverse mapping of-layer handled.

17. method according to claim 15, wherein, described each road signal satisfies following arbitrary condition respectively:

-corresponding with each information flow after described subcarrier inverse mapping is handled;

-corresponding with each information flow after the IDFT demodulation process;

-corresponding with each information flow after symbol demodulation is handled;

It is corresponding with each information flow that the back is handled in the inverse mapping of-layer.

18. method according to claim 16 is characterized in that, this receiver carries out contrary staggered the processing to the multiple signals through the OFDM demodulation process, and described steps A may further comprise the steps:

-at least one road signal, through the part symbol part symbol after the OFDM demodulation process and other at least one road signals, after the OFDM demodulation process the processing that interlocks, to obtain described information sequence after staggered the processing, wherein, described staggered processing is minimum cross-over unit with DFT modulation symbol or frequency resource block time slot.

19. method according to claim 16, wherein, this receiver carries out contrary staggered the processing to the multiple signals of handling through the subcarrier inverse mapping, and described steps A further comprises the steps:

-to the processing that interlocks of part symbol at least one road signal, after the subcarrier inverse mapping is handled and part symbol other at least one road signals, after subcarrier inverse mapping processing, to obtain described information sequence after staggered the processing, wherein, described staggered processing is minimum cross-over unit with DFT modulation symbol or frequency resource block time slot.

20. method according to claim 19, wherein, described multipath is a plurality of corresponding to the frequency resource block the same space resource, that frequency is different, or corresponding to the frequency resource block different spaces resource, that frequency is different, it is corresponding with each information flow that each road signal is handled the back in described subcarrier inverse mapping respectively, described interlock be treated to the part symbol of a signal and another signal, exchange or be substituted into its position corresponding to the part symbol of the frequency resource block of different frequency.

21. method according to claim 19, wherein, described multipath is a frequency resource block that a plurality of space resourcess comprise, that frequency is identical respectively, it is corresponding with each information flow that each road signal is handled the back in described subcarrier inverse mapping respectively, described interlock be treated to the part symbol of a signal and another signal, exchange or be substituted into its position corresponding to the identical and/or different frequency of different spaces resource or corresponding to the part symbol of the frequency resource block of same space resource and different frequency.

22. method according to claim 19, wherein, described multipath is a frequency resource block that a plurality of space resourcess comprise, that frequency is identical respectively, it is corresponding with each information flow that each road signal is handled the back at symbol demodulation respectively, described interlock be treated to the part symbol of a signal and another signal, exchange or be substituted into its position corresponding to the part symbol of the frequency resource block of the identical or different frequency of another space resources.

23. method according to claim 19, wherein, described multipath is a frequency resource block that a plurality of space resourcess comprise, that frequency is identical respectively, each road signal is corresponding with each information flow after the IDFT demodulation process respectively, described staggered be treated to the part symbol of a signal and another signal, exchange or be substituted into its position corresponding to the part symbol of the frequency resource block of the identical or different frequency of another space resources.

24. method according to claim 16, wherein, this receiver carries out contrary staggered the processing to the multiple signals after the IDFT demodulation process, and described steps A is further comprising the steps of:

-with at least one road signal, through the processing that interlocks of the part symbol after the IDFT demodulation process and part symbol other at least one road signals, after the IDFT demodulation process, to obtain the information sequence after staggered the processing, wherein, described staggered processing is minimum cross-over unit with constellation point modulation symbol, DFT modulation symbol or frequency resource block time slot;

25. method according to claim 16, wherein, this receiver carries out contrary staggered the processing to the multiple signals behind symbol demodulation, and described steps A is further comprising the steps of:

-with at least one road signal, through the processing that interlocks of the partial information behind the symbol demodulation and other at least one roads partial information signal, behind symbol demodulation, to obtain described information sequence after staggered the processing, wherein, described staggered processing is minimum cross-over unit with bit.

26. method according to claim 16, wherein, this receiver carries out contrary staggered the processing to the multiple signals after handling through layer inverse mapping, and described steps A is further comprising the steps of:

-with partial information at least one road signal, after floor inverse mapping handled and other at least one road signals, through the processing that interlocks of the partial information of floor inverse mapping processing, to obtain described information sequence after staggered the processing, wherein, described staggered processing is minimum cross-over unit with bit.

27. one kind is used in multi-information flow OFDM transmitter a plurality of information flows communicating devices of interlocking, wherein, transmitter has multipath, described multipath comprises the incomplete identical frequency resource block of a plurality of frequencies and/or a plurality of incomplete identical space resources, each information flow corresponds respectively to different paths, and this device comprises:

-alternating device is used for the processing that interlocks of the partial information of the partial information of at least one information flow and other at least one information flows, to obtain the information sequence after staggered processing;

-processing unit is used for described information sequence after staggered the processing is carried out subsequent treatment respectively, and sends by corresponding path respectively.

28. device according to claim 27, wherein, described a plurality of information flows comprise following each:

Described multipath comprise following each:

29. device according to claim 28, wherein, described code word relevant treatment comprises:

The mapping of-layer handled;

-symbol-modulated is handled;

-DFT modulation treatment;

The mapping of-subcarrier is handled;

-OFDM modulation treatment.

30. device according to claim 28, wherein, described each information flow satisfies following arbitrary condition respectively:

31. device according to claim 29 is characterized in that, described code word relevant treatment is that layer mapping handled, and described alternating device is used for:

-with the partial data at least of one deck at least at least one code word, that handle through layer mapping and other at least one code words, through the processing that interlocks of the partial data at least of one deck at least of layer mapping processing, to obtain described information sequence after staggered the processing, wherein, described staggered processing is minimum cross-over unit with bit;

Described processing unit is used for, and described information sequence through interlocking after handling is carried out symbol-modulated processing, DFT processing, subcarrier mapping processing and OFDM modulation treatment respectively.

32. device according to claim 29 is characterized in that, described code word relevant treatment is that symbol-modulated is handled, and described alternating device is used for:

-with the processing that interlocks of part symbol at least one information flow, after symbol-modulated is handled and part symbol other at least one information flows, after the symbol-modulated processing, to obtain described information sequence after staggered the processing, wherein, described staggered processing is minimum cross-over unit with constellation point modulation symbol or DFT modulation symbol or frequency resource block time slot;

Described processing unit is used for, and described information sequence after staggered the processing is carried out follow-up DFT processing, subcarrier mapping processing and OFDM modulation treatment respectively.

33. device according to claim 29, wherein, described code word relevant treatment is the DFT modulation treatment, and described alternating device is used for:

-with at least one information flow, through the part symbol part symbol after the DFT modulation treatment and other at least one information flows, after the DFT modulation treatment the processing that interlocks, to obtain described information sequence after staggered the processing, wherein, described staggered processing is minimum cross-over unit with DFT modulation symbol or frequency resource block time slot;

Described processing unit is used for, and described information sequence after staggered the processing is carried out the subcarrier mapping respectively handle and the OFDM modulation treatment.

34. device according to claim 33, wherein, described multipath is a plurality of corresponding to the frequency resource block the same space resource, that frequency is different, or corresponding to the frequency resource block different spaces resource, that frequency is different, each information flow is corresponding one by one with each frequency resource block before described code word relevant treatment respectively, described staggered be treated to the part symbol of a code word and another code word, exchange or be substituted into its position corresponding to the part symbol of the frequency resource block of different frequency.

35. device according to claim 33, wherein, described multipath is a frequency resource block that a plurality of space resourcess comprise, that frequency is identical respectively, each information flow is corresponding one by one with each frequency resource block before described code word relevant treatment respectively, described staggered be treated to the part symbol of a code word and another code word, exchange or be substituted into its position corresponding to the identical and/or different frequency of different spaces resource or corresponding to the part symbol of the frequency resource block of same space resource and different frequency.

36. device according to claim 33, wherein, described multipath is a frequency resource block that a plurality of space resourcess comprise, that frequency is identical respectively, each information flow is divided into multiple signals respectively after symbol-modulated is handled, each frequency resource block in each road signal of a code word and the space resources is corresponding, described staggered be treated to the part symbol of a code word and another code word, exchange or be substituted into its position corresponding to the part symbol of the frequency resource block of the identical or different frequency of another space resources.

37. device according to claim 33, wherein, described multipath is a frequency resource block that a plurality of space resourcess comprise, that frequency is identical respectively, each information flow is divided into multichannel respectively after symbol-modulated processing and DFT modulation treatment, each frequency resource block correspondence of each Lu Yuyi space resources of a code word, described staggered be treated to the part symbol of a code word and another code word, exchange or be substituted into its position corresponding to the part symbol of the frequency resource block of the identical or different frequency of another space resources.

38. device according to claim 29, wherein, described code word relevant treatment is included as the subcarrier mapping and handles, and described alternating device is used for:

-with the processing that interlocks of part symbol at least one code word, after subcarrier mapping is handled and part symbol other at least one code words, after subcarrier mapping processing, to obtain the information sequence after staggered the processing, wherein, described staggered processing is minimum cross-over unit with DFT modulation symbol or frequency resource block time slot;

Described processing unit is used for, and the information sequence after staggered the processing is carried out the OFDM modulation treatment respectively.

39. device according to claim 29, wherein, described code word relevant treatment is the OFDM modulation treatment, and described alternating device is used for:

-with at least one information flow, through the part symbol part symbol after the OFDM modulation treatment and other at least one information flows, after the OFDM modulation treatment the processing that interlocks, to obtain described information sequence after staggered the processing, wherein, described staggered processing is minimum cross-over unit with OFDM modulation symbol or frequency resource block time slot;

Described processing unit is used for, and described information sequence after staggered the processing is carried out subsequent treatment respectively.

40. one kind is used for the device handled from the staggered multiple signals of handling of the warp of a plurality of information flows of multi-information flow OFDM transmitter in multi-information flow OFDM receiver, wherein, this receiver has multipath, described multipath comprises the incomplete identical frequency resource block of a plurality of frequencies, each signal corresponds respectively to different paths, and this device comprises:

-contrary alternating device is used for the partial information at least one road of the multiple signals that received and the partial information on another road are at least carried out contrary staggered the processing, obtains through the contrary staggered information sequence of handling;

-deriving means is used for described information sequence after contrary staggered the processing is carried out subsequent treatment respectively, and reduction obtains described a plurality of information flow.

41. according to the described device of claim 40, wherein, described a plurality of information flows comprise following each:

Described multipath comprise following each:

42. according to the described device of claim 41, wherein, described contrary alternating device carries out contrary staggered the processing to the multiple signals after following each processing:

-OFDM demodulation process;

The inverse mapping of-subcarrier is handled;

-IDFT demodulation process;

-symbol demodulation is handled;

The inverse mapping of-layer handled.

43. according to the described device of claim 41, wherein, described each road signal satisfies following arbitrary condition respectively:

-corresponding with each information flow after the IDFT demodulation process;

-corresponding with each information flow after symbol demodulation is handled;

44., it is characterized in that described contrary alternating device carries out contrary staggered the processing to the multiple signals through the OFDM demodulation process, also is used for according to the described device of claim 42:

45. according to the described device of claim 42, wherein, described contrary alternating device carries out contrary staggered the processing to the multiple signals of handling through the subcarrier inverse mapping, also is used for:

46. according to the described device of claim 45, wherein, described multipath is a plurality of corresponding to the frequency resource block the same space resource, that frequency is different, or corresponding to the frequency resource block different spaces resource, that frequency is different, it is corresponding with each information flow that each road signal is handled the back in described subcarrier inverse mapping respectively, described interlock be treated to the part symbol of a signal and another signal, exchange or be substituted into its position corresponding to the part symbol of the frequency resource block of different frequency.

47. according to the described device of claim 45, wherein, described multipath is a frequency resource block that a plurality of space resourcess comprise, that frequency is identical respectively, it is corresponding with each information flow that each road signal is handled the back in described subcarrier inverse mapping respectively, described interlock be treated to the part symbol of a signal and another signal, exchange or be substituted into its position corresponding to the identical and/or different frequency of different spaces resource or corresponding to the part symbol of the frequency resource block of same space resource and different frequency.

48. according to the described device of claim 45, wherein, described multipath is a frequency resource block that a plurality of space resourcess comprise, that frequency is identical respectively, it is corresponding with each information flow that each road signal is handled the back at symbol demodulation respectively, described interlock be treated to the part symbol of a signal and another signal, exchange or be substituted into its position corresponding to the part symbol of the frequency resource block of the identical or different frequency of another space resources.

49. according to the described device of claim 45, wherein, described multipath is a frequency resource block that a plurality of space resourcess comprise, that frequency is identical respectively, each road signal is corresponding with each information flow after the IDFT demodulation process respectively, described staggered be treated to the part symbol of a signal and another signal, exchange or be substituted into its position corresponding to the part symbol of the frequency resource block of the identical or different frequency of another space resources.

50. according to the described device of claim 42, wherein, described contrary alternating device carries out contrary staggered the processing to the multiple signals after the IDFT demodulation process, also is used for:

51. according to the described device of claim 42, wherein, described contrary alternating device carries out contrary staggered the processing to the multiple signals behind symbol demodulation, also is used for:

52. according to the described device of claim 42, wherein, described contrary alternating device carries out contrary staggered the processing to the multiple signals after handling through layer inverse mapping, also is used for:

53. a multi-information flow OFDM transmitter wherein, comprises according to each described being used for a plurality of information flows communicating devices of interlocking in the claim 27 to 39.

54. a multi-information flow OFDM receiver wherein, comprises according to each described device of handling from the staggered multiple signals of handling of the warp of a plurality of information flows of multi-information flow OFDM transmitter of being used in the claim 40 to 42.