CN104321992B

CN104321992B - Data processing method and device

Info

Publication number: CN104321992B
Application number: CN201380000443.4A
Authority: CN
Inventors: 符鸿亮; 刘宇
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2013-03-29
Filing date: 2013-03-29
Publication date: 2017-10-17
Anticipated expiration: 2033-03-29
Also published as: CN104321992A; WO2014153767A1

Abstract

The present invention relates to the communications field, more particularly to a kind of data processing method and device, wherein methods described include：Data after channel coding processing are pre-processed, the pretreatment includes layer mapping processing.And processing is modulated to the pretreated data；Multiple-input and multiple-output MIMO precoding processings are carried out to the data after modulation treatment.Implement the embodiment of the present invention, system treatment effeciency can be improved.

Description

Data processing method and device

Technical field

The present invention relates to the communications field, more particularly to a kind of data processing method and device.

Background technology

In Long Term Evolution (Long Term Evolution, LTE) system, multiple-input and multiple-output is employed （Multiple-Input Multiple-output, MIMO) it is used for lifting system capacity.The core of MIMO technology is space-time letter Number processing, all dispose many antennas in transmitting terminal and receiving terminal, increase Spatial Dimension by many antennas, so as to obtain space Spatial multiplexing gain or space diversity gain.

In transmitting terminal, transmitting data need by multiple antennas to launch after MIMO precoding processings, had at present A kind of prior art, it is necessary to which the data to precoding carry out layer mapping processing before MIMO precodings, and to precoding Data are carried out before layer mapping processing, and data first are modulated into processing.

In the prior art, single treatable constellation point during layer mapping processing is carried out less, it is less efficient.

The content of the invention

In consideration of it, the present invention provides a kind of data processing method and device, system treatment effeciency can be improved.

First aspect present invention provides a kind of data processing method, it may include：

Data after channel coding processing are pre-processed, the pretreatment includes layer mapping processing.

And processing is modulated to the pretreated data；

Multiple-input and multiple-output MIMO precoding processings are carried out to the data after modulation treatment.

With reference in a first aspect, in the first possible implementation, the data to after channel coding are located in advance Reason also includes：

Data after handling the layer mapping carry out pilot frequency locations reservation process.

With reference to the first possible implementation of first aspect, in second of possible implementation, described pair of letter Data after road coding, which are pre-processed, also to be included：

Subcarrier maps processing is carried out to the data after the pilot frequency locations reservation process.

, may at the third with reference to the first possible implementation or second of possible implementation of first aspect Implementation in, the data to after modulation treatment are carried out before multiple-input and multiple-output MIMO precoding processings, in addition to：

Pilot tone mapping processing is carried out to the data after the modulation treatment, pilot tone is mapped to the pilot frequency locations and reserved In the pilot frequency locations reserved during processing.

It is any in second of possible implementation with reference to first aspect to first aspect, in the 4th kind of possible reality In existing mode, the data to after channel coding carry out layer mapping processing, including：

According to the corresponding modulation system of the bit data flow of user and the layer mapped mode of setting to the use after channel coding The bit data flow at family carries out layer mapping processing, wherein, the modulation system is used to indicate the corresponding bit number of each constellation point According to the layer mapped mode is used for the number of plies for indicating to be mapped.

With reference to the first possible implementation or second of possible implementation of first aspect, in the 5th kind of possibility Implementation in, to the layer mapping handle after data carry out pilot frequency locations reservation process, including：

The layer is mapped according to the pilot frequency locations designator of the corresponding modulation system of the bit data flow of user and setting Data after processing carry out pilot frequency locations reservation process, wherein, the modulation system is used to indicate the corresponding ratio of each constellation point Special data and the corresponding bit data of each pilot tone, the pilot frequency locations designator are used to indicate pilot tone inserting between each constellation point Enter position.

With reference to the 5th kind of possible implementation of first aspect, in the 6th kind of possible implementation, the pilot tone Location pointer is bit data string, and the length of the bit data string is equal to the corresponding constellation of bit data flow of the user The bit of different values is represented respectively in the number sum of the number of point and the pilot tone of required insertion, the bit data string leads Frequency position and constellation point position.

Second aspect of the present invention provides a kind of device of data processing, and it may include：

Channel coding module, for carrying out channel coding processing to data；

Pretreatment module, for being pre-processed to the data after channel coding module processing, the pretreatment bag Include layer mapping processing；

Modulation module, for being modulated processing to the pretreated data of the pretreatment module；

Precoding module, prelists for carrying out multiple-input and multiple-output MIMO to the data after the adjusting module modulation treatment Code processing.

With reference to second aspect, in the first possible implementation, the pretreatment module includes：

Layer mapping processing module, for carrying out layer mapping processing to the data after channel coding.

With reference to the first possible implementation of second aspect, in second of possible implementation, the pre- place Reason module also includes：

Pilot frequency locations reserve module, and pilot bit is carried out for carrying out the data after layer mapping processing to the layer mapping block Put reservation process.

With reference to second of possible implementation of second aspect, in the third possible implementation, the pre- place Reason module also includes：

Subcarrier maps processing module, is carried out after pilot frequency locations reservation process for reserving module to the pilot frequency locations Data carry out subcarrier maps processing.

With reference to second of the possible implementation or the third possible implementation of second aspect, in the 4th kind of possibility Implementation in, between the modulation module and the precoding module, in addition to：

Pilot tone mapping block, will for carrying out pilot tone mapping processing to the data after the modulation module modulation treatment Pilot tone is mapped to the pilot frequency locations and reserved in the pilot frequency locations reserved during module pilot frequency locations reservation process, so that described pre- Coded treatment module carries out the data after pilot tone mapping processing to pilot tone mapping block and carries out multiple-input and multiple-output MIMO precodings Processing.

It is any in second of possible implementation with reference to second aspect to second aspect, in the 5th kind of possible reality In existing mode, the layer mapping processing module is specifically for the corresponding modulation system of bit data flow according to user and setting Layer mapped mode carries out layer mapping processing to the bit data flow of the user after channel coding, wherein, the modulation system is used for The corresponding bit data of each constellation point is indicated, the layer mapped mode is used for the number of plies for indicating to be mapped.

With reference to second of the possible implementation or the third possible implementation of second aspect, in the 6th kind of possibility Implementation in, the pilot frequency locations reserve module specifically for the corresponding modulation system of bit data flow according to user and Data after the pilot frequency locations designator of setting is handled the layer mapping carry out pilot frequency locations reservation process, wherein, it is described to adjust Mode processed is used to indicate the corresponding bit data of each constellation point and the corresponding bit data of each pilot tone, and the pilot frequency locations refer to Show that symbol is used to indicate insertion position of the pilot tone between each constellation point.

With reference to the 6th kind of possible implementation of second aspect, in the 7th kind of possible implementation, the pilot tone Location pointer is bit data string, and the length of the bit data string is equal to the corresponding constellation of bit data flow of the user The bit of different values is represented respectively in the number sum of the number of point and the pilot tone of required insertion, the bit data string leads Frequency position and constellation point position.

Third aspect present invention provides a kind of device of data processing, and it includes memory and processor, the processor The program stored in the memory is called, and performs following steps：

And processing is modulated to the pretreated data；

With reference to the third aspect, in the first possible implementation, the computing device is to the number after channel coding According to also including the step of pretreatment：

With reference to the first possible implementation of the third aspect, in second of possible implementation, the processing Device, which performs the step of being pre-processed to the data after channel coding, also to be included：

, may at the third with reference to the first possible implementation or second of possible implementation of the third aspect Implementation in, the processor to after modulation treatment data carry out multiple-input and multiple-output MIMO precoding processings before, also Perform following steps：

It is any in second of possible implementation with reference to the third aspect to first aspect, in the 4th kind of possible reality In existing mode, the processor carries out layer mapping processing to the data after channel coding and specifically included：

With reference to the first possible implementation or second of possible implementation of the third aspect, in the 5th kind of possibility Implementation in, the processor to the layer mapping handle after data carry out pilot frequency locations reservation process specifically include：

With reference to the 5th kind of possible implementation of the third aspect, in the 6th kind of possible implementation, the pilot tone Location pointer is bit data string, and the length of the bit data string is equal to the corresponding constellation of bit data flow of the user The bit of different values is represented respectively in the number sum of the number of point and the pilot tone of required insertion, the bit data string leads Frequency position and constellation point position.

Fourth aspect present invention provides a kind of computer-readable storage medium, and it may include the executable instruction of computer, for When being instructed described in the computing device of computer, the computer performs department or complete any in the inventive method embodiment Portion's flow.

Therefore, in some feasible embodiments of the present invention, layer mapping processing is put into before modulation treatment Carry out, as a result, in the case of the data volume handled within the unit interval is constant, system can handle more number of constellation points According to improving treatment effeciency.

Brief description of the drawings

Fig. 1 is the schematic flow sheet of the first embodiment of the data processing method of the present invention；

Fig. 2 is the principle schematic that the embodiment of the present invention carries out layer mapping processing；

Fig. 3 is the schematic flow sheet of the second embodiment of the data processing method of the present invention；

Fig. 4 is the principle schematic that the embodiment of the present invention carries out pilot frequency locations reservation process；

Fig. 5 is the schematic flow sheet of the 3rd embodiment of the data processing method of the present invention；

Fig. 6 is the structure composition schematic diagram of the first embodiment of the device of the data processing of the present invention；

Fig. 7 is the structure composition schematic diagram of the second embodiment of the device of the data processing of the present invention；

Fig. 8 is the structure composition schematic diagram of the 3rd embodiment of the device of the data processing of the present invention；

Fig. 9 is the structure composition schematic diagram of the fourth embodiment of the device of the data processing of the present invention.

Specific embodiment

Below by specific embodiment, the present invention is described in detail.

Fig. 1 is the schematic flow sheet of the first embodiment of the data processing method of the present invention.As shown in figure 1, it may include：

Data after channel coding are carried out layer mapping processing by step S110.

Step S111, the data after handling the layer mapping are modulated processing.

Data after the modulation treatment are carried out multiple-input and multiple-output MIMO precoding processings by step S112.

In some feasible embodiments, in step S110, according to the corresponding modulation system of the bit data flow of user Layer mapping processing is carried out to the bit data flow of the user after channel coding with the layer mapped mode of setting, wherein, the modulation Mode is used to indicate the corresponding bit data of each constellation point, and the layer mapped mode is used for the number of plies for indicating to be mapped.

Such as, with reference to Fig. 2, wherein A (0), A (1) ... A (N-1) represent the different stars under same modulation system respectively Seat point, for identical modulation system, the bit included by each of which constellation point A (0), A (1) ... A (N-1)（bit）Number is Identical, and the bit number included by constellation point between different modulating mode is then differed.For example, for QPSK （Quadrature Phase Shift Keying, QPSK）Modulation system, each of which constellation point A (0), A (1) ... the bit included by A (N-1)（bit）Number is 2bit；For 16QAM（Quadrature Amplitude Modulation, quadrature amplitude modulation）Modulation system, the bit included by each of which constellation point A (0), A (1) ... A (N-1) （bit）Number is 4bit；For 64QAM modulation systems, the bit included by each of which constellation point A (0), A (1) ... A (N-1) （bit）Number is 6bit；For 256QAM modulation systems, the bit included by each of which constellation point A (0), A (1) ... A (N-1) （bit）Number is 8bit.Wherein N expression layers mapping before data length, N/2, N/3, N/4 represent carry out two layers mapping, three layers reflect Penetrate, four layers mapping after data length.

In some feasible embodiments, it can realize that layer mapping is handled by instruction, such as, for QPSK modulation methods Formula, the instruction mapped for execution level, which can be set, is：SEL_IQ_QPSK.When performing SEL_IQ_QPSK instructions, SEL_IQ_ QPSK instruction input be：Bit data and layer mapped mode after channel coding are indicated.SEL_IQ_QPSK instructions are output as： Bit data after layer mapping processing.When performing SEL_IQ_QPSK instructions, system can be indicated according to and according to layer mapped mode Bit data are mapped in different layers in units of 2bit, such as, pattern 0 represents that input BIT data reflect for two layers Penetrate, then in the case of pattern 0, bit data are mapped in two layers in units of 2bit；Pattern 1 is represented to input bit data Bit data, then in the case of pattern 1, be mapped in three layers by the mapping of three layers of progress in units of 2bit.Correspond to Fig. 2, A (0) includes the 1-2bit of data, and A (1) includes the 3-4bit of data, and A (2) includes the 5-6bit of data.For other Modulation system, similar layer mapping process instruction can be set, for different modulation systems, is taken when carrying out layer mapping Bit units are different.

Therefore, in some embodiments of the invention, carried out before layer mapping processing is put into modulation treatment, by This so that in the case of the data volume handled within the unit interval is constant, system can handle more number of constellation points evidences, improve Treatment effeciency.

Fig. 3 is the schematic flow sheet of the second embodiment of the data processing method of the present invention.As shown in figure 3, it may include：

Data after channel coding are carried out layer mapping processing by step S310.

Step S311, the data after handling layer mapping carry out pilot frequency locations reservation process.

Data after the pilot frequency locations reservation process are modulated processing by step S312.

Data after the modulation treatment are carried out pilot tone mapping processing by step S313, and pilot tone is mapped into described lead In the pilot frequency locations reserved during the reservation process of frequency position.

Step S314, the data after handling the pilot tone mapping carry out multiple-input and multiple-output MIMO precoding processings.

, can be according to the corresponding modulation methods of bit data flow of user in step S310 in some feasible embodiments Formula and the layer mapped mode of setting carry out layer mapping processing to the bit data flow of the user after channel coding, wherein, it is described to adjust Mode processed is used to indicate the corresponding bit data of each constellation point, and the layer mapped mode is used for the number of plies for indicating to be mapped.

, can be according to the corresponding modulation methods of bit data flow of user in step S311 in some feasible embodiments Data after formula and the pilot frequency locations designator of setting are handled the layer mapping carry out pilot frequency locations reservation process, wherein, institute Stating modulation system is used to indicate the corresponding bit data of each constellation point and the corresponding bit data of each pilot tone, the pilot bit Putting designator is used to indicate insertion position of the pilot tone between each constellation point.

In some feasible embodiments, the pilot frequency locations designator is bit data string, the bit data string Length be equal to the user the corresponding constellation point of bit data flow number and required insertion pilot tone number sum, The bit of different values represents pilot frequency locations and constellation point position respectively in the bit data string.Such as, the bit data Value need to export constellation point for the relevant position of the position instruction output data of " 0 " in string；Otherwise, this of output data is corresponding Position is pilot frequency locations（Can be that empty or value is " 0 " before insertion pilot tone）.Such as, with reference to Fig. 4, pilot frequency locations are being carried out Serial data before reservation process is A (0), A (3), A (6), A (9) ... A (N-3)；And after pilot frequency locations reservation process is carried out Serial data for A (0), RS, A (3), RS, A (6), RS, A (9) ... A (N-3).Wherein RS represents pilot frequency locations, and N represents to lead Data length before frequency position is reserved, Nrs is the number for the pilot frequency locations that pilot tone is reserved.

In some feasible embodiments, pilot frequency locations reservation process can be realized by instruction, such as, for QPSK's Modulation system, the instruction for performing pilot frequency locations reservation process, which can be set, is：ZEROINS_BITMAP_QPSK.Performing When ZEROINS_BITMAP_QPSK is instructed, the input of ZEROINS_BITMAP_QPSK instructions is：Layer mapping after bit data and Pilot frequency locations designator.ZEROINS_BITMAP_QPSK instructions are output as：BIT data after pilot frequency locations are reserved.Holding When row ZEROINS_BITMAP_QPSK is instructed, system can inputted according to the instruction of pilot frequency locations designator in units of 2bit Bit data between reserve pilot frequency locations, such as, it is assumed that the pilot frequency locations designator be bit data string, and carry out pilot tone The number of the constellation point inputted during the reservation process of position is N, and the number for the pilot tone that need to be inserted is Nrs, then the bit data string Bit positions length be N+Nrs, such as N is that 4, Nrs is 2, then the length of the bit data string be 6, such as be 001001, Wherein " 1 " can represent that the relevant position of output data need to export the 3rd and 6 of pilot tone, i.e. output data and should export pilot tone； Wherein " 0 " can represent that the relevant position of output data need to export constellation point, then 1-2,4-5 of output data should export star Seat point, and the numbering of the constellation point of 1-2,4-5 output is continuous.For other modulation systems, similar pilot bit can be set Put reservation process instruction, for different modulation systems, the bit units taken when carrying out pilot frequency locations reservation process it is different and .

So after step S311 processing, in step S313, then the data after the modulation treatment can be carried out Pilot tone mapping is handled, in the pilot frequency locations reserved when pilot tone is mapped into the pilot frequency locations reservation process.

Therefore, in some embodiments of the invention, layer mapping processing and pilot frequency locations reservation process are put into tune Carried out before system processing, as a result, in the case of the data volume handled within the unit interval is constant, system is carrying out layer mapping And pilot frequency locations it is reserved when can handle more number of constellation points evidences, improve treatment effeciency.

Fig. 5 is the schematic flow sheet of the 3rd embodiment of the data processing method of the present invention.As shown in figure 5, it may include：

Data after channel coding are carried out layer mapping processing by step S510.

Step S511, the data after handling layer mapping carry out pilot frequency locations reservation process.

Data after the pilot frequency locations reservation process are carried out subcarrier maps processing by step S512.

Data after subcarrier maps processing are modulated processing by step S513.

Data after the modulation treatment are carried out pilot tone mapping processing by step S514, and pilot tone is mapped into described lead In the pilot frequency locations reserved during the reservation process of frequency position.

Step S515, the data after handling the pilot tone mapping carry out multiple-input and multiple-output MIMO precoding processings.

, can be according to the corresponding modulation methods of bit data flow of user in step S510 in some feasible embodiments Formula and the layer mapped mode of setting carry out layer mapping processing to the bit data flow of the user after channel coding, wherein, it is described to adjust Mode processed is used to indicate the corresponding bit data of each constellation point, and the layer mapped mode is used for the number of plies for indicating to be mapped.

, can be according to the corresponding modulation methods of bit data flow of user in step S511 in some feasible embodiments Data after formula and the pilot frequency locations designator of setting are handled the layer mapping carry out pilot frequency locations reservation process, wherein, institute Stating modulation system is used to indicate the corresponding bit data of each constellation point and the corresponding bit data of each pilot tone, the pilot bit Putting designator is used to indicate insertion position of the pilot tone between each constellation point.

In some feasible embodiments, the pilot frequency locations designator is bit data string, the bit data string Length be equal to the user the corresponding constellation point of bit data flow number and required insertion pilot tone number sum, The bit of different values represents pilot frequency locations and constellation point position respectively in the bit data string.Such as, the bit data Value need to export constellation point for the relevant position of the position instruction output data of " 0 " in string；Otherwise, this of output data is corresponding Position is pilot frequency locations（Can be that empty or value is " 0 " before insertion pilot tone）.Such as, with reference to Fig. 3, pilot frequency locations are being carried out Serial data before reservation process is A (0), A (3), A (6), A (9) ... A (N-3)；And after pilot frequency locations reservation process is carried out Serial data for A (0), RS, A (3), RS, A (6), RS, A (9) ... A (N-3).Wherein RS represents pilot frequency locations, and N represents to lead Data length before frequency position is reserved, Nrs is the number for the pilot frequency locations that pilot tone is reserved.

So after step S511 processing, in step S514, then the data after the modulation treatment can be carried out Pilot tone mapping is handled, in the pilot frequency locations reserved when pilot tone is mapped into the pilot frequency locations reservation process.

Therefore, in some embodiments of the invention, layer mapping processing, pilot frequency locations reservation process and son are carried Ripple mapping processing is put into progress before modulation treatment, as a result, in the case of the data volume handled within the unit interval is constant, System can handle more number of constellation points evidences when progress layer mapping and pilot frequency locations are reserved and subcarrier maps are handled, and improve Treatment effeciency.

In addition, the quantity in order to reduce instruction, unified by various modulation system processing methods, above-mentioned each implementation of the invention Example can increase the flow of bit bit wides extension before layer maps, and the order of modulation of different bit bit wides is expanded into same band.

Such as, definable instruction BIT_EXPAND_BPSK, BIT_EXPAND_QPSK, BIT_EXPAND_16QAM, BIT_ EXPAND_64QAM, by 1BIT, 2BIT, 4BIT, 6BIT of input data modulation unit, bit wide expands to 8BIT.

Illustrate the function of instruction by taking BIT_EXPAND_QPSK as an example：

BIT_EXPAND_QPSK instruction input be：Pending BIT data and bit wide extension designator.Wherein, it is described Bit wide extension designator is used to indicate the bit wide after extension.Such as, it is 8bit.

BIT_EXPAND_QPSK instructions are output as：BIT data after bit wide extension.

Such as, when 2BIT bit wide being extended into a 8BIT bit wide and being exported, high 6BIT directly fills out 0 supplement.

Accordingly, the embodiment of the present invention is additionally provided available for the device embodiment for implementing above-mentioned each method embodiment.

Fig. 6 is the structure composition schematic diagram of the first embodiment of the device of the data processing of the present invention.As shown in fig. 6, its It may include：Channel coding module 61, pretreatment module 62, modulation module 63 and precoding module 64, wherein：

Channel coding module 61, for carrying out channel coding processing to data.

Pretreatment module 62, for being pre-processed to the data after the channel coding module 61 processing, the pre- place Reason includes layer mapping processing；In the present embodiment, the pretreatment module 62 includes：Layer mapping processing module 622, for letter Data after road coding carry out layer mapping processing.

Modulation module 63, for being modulated processing to the pretreated data of the pretreatment module 62.

Precoding module 64, multiple-input and multiple-output MIMO precodings are carried out for the data after the modulation treatment of modulation module 63 Processing.

In some feasible embodiments, layer mapping processing module 622 can be corresponding according to the bit data flow of user Modulation system and the layer mapped mode of setting carry out layer mapping processing to the bit data flow of the user after channel coding, wherein, The modulation system is used to indicate the corresponding bit data of each constellation point, and the layer mapped mode is used to indicate what is mapped The number of plies.

Fig. 7 is the structure composition schematic diagram of the second embodiment of the device of the data processing of the present invention.As shown in fig. 7, its It may include：Channel coding module 71, pretreatment module 72, modulation module 73, pilot tone mapping block 74 and precoding module 75, Wherein：

Channel coding module 71, for carrying out channel coding processing to data.

Pretreatment module 72, for being pre-processed to the data after the channel coding module 71 processing, the pre- place Reason includes layer mapping processing, pilot frequency locations reservation process；In the present embodiment, the pretreatment module 72 includes：At layer mapping Manage module 722 and pilot frequency locations reserve module 723, wherein：Layer mapping processing module 722, for the data after channel coding Carry out layer mapping processing.Pilot frequency locations reserve module 723, for being carried out to the layer mapping block 722 after layer mapping processing Data carry out pilot frequency locations reservation process.

Modulation module 73, for being modulated processing to the pretreated data of the pretreatment module 72.

Pilot tone mapping block 74, for carrying out pilot tone mapping processing to the data after the modulation treatment of modulation module 73, So that pilot tone is mapped in the pilot frequency locations reserved when the pilot frequency locations reserve module pilot frequency locations reservation process.

Precoding module 75, the data progress multi input after pilot tone mapping processing is carried out for pilot tone mapping block 74 how defeated Go out MIMO precoding processings.

In some feasible embodiments, layer mapping processing module 722 can be corresponding according to the bit data flow of user Modulation system and the layer mapped mode of setting carry out layer mapping processing to the bit data flow of the user after channel coding, wherein, The modulation system is used to indicate the corresponding bit data of each constellation point, and the layer mapped mode is used to indicate what is mapped The number of plies.

In some feasible embodiments, pilot frequency locations reservation process module 723 can be according to the bit data flow of user Data progress pilot frequency locations after corresponding modulation system and the pilot frequency locations designator of setting are handled the layer mapping are reserved Processing, wherein, the modulation system is used to indicate the corresponding bit data of each constellation point and the corresponding bit number of each pilot tone According to the pilot frequency locations designator is used to indicate insertion position of the pilot tone between each constellation point.

After processing so by pilot frequency locations reservation process module 723, pilot tone mapping block 74 can then be adjusted to described Data after system processing carry out pilot tone mapping processing, and what is reserved when pilot tone is mapped into the pilot frequency locations reservation process leads On frequency position.

Fig. 8 is the structure composition schematic diagram of the 3rd embodiment of the device of the data processing of the present invention.As shown in figure 8, its It may include：Channel coding module 81, pretreatment module 82, modulation module 83, pilot tone mapping block 84 and precoding module 85, Wherein：

Channel coding module 81, for carrying out channel coding processing to data.

Pretreatment module 82, for being pre-processed to the data after the channel coding module 81 processing, the pre- place Reason includes layer mapping processing, pilot frequency locations reservation process；In the present embodiment, the pretreatment module 82 includes：At layer mapping Manage module 822, pilot frequency locations and reserve module 823 and subcarrier maps processing module 824, wherein：Layer mapping processing module 822, for carrying out layer mapping processing to the data after channel coding.Pilot frequency locations reserve module 823, for mapping the layer Module 822 carries out the data after layer mapping processing and carries out pilot frequency locations reservation process；Subcarrier maps processing module 824, is used for The pilot frequency locations are reserved with module 823 and carries out the data progress subcarrier maps processing after pilot frequency locations reservation process.

Modulation module 83, for being modulated processing to the pretreated data of the pretreatment module 82.

Pilot tone mapping block 84, for carrying out pilot tone mapping processing to the data after the modulation treatment of modulation module 83, So that pilot tone is mapped in the pilot frequency locations reserved when the pilot frequency locations reserve module pilot frequency locations reservation process.

Precoding module 85 is more for carrying out the progress multi input of the data after pilot tone mapping processing to pilot tone mapping block 84 Export MIMO precoding processings.

In some feasible embodiments, layer mapping processing module 822 can be corresponding according to the bit data flow of user Modulation system and the layer mapped mode of setting carry out layer mapping processing to the bit data flow of the user after channel coding, wherein, The modulation system is used to indicate the corresponding bit data of each constellation point, and the layer mapped mode is used to indicate what is mapped The number of plies.

In some feasible embodiments, pilot frequency locations reservation process module 823 can be according to the bit data flow of user Data progress pilot frequency locations after corresponding modulation system and the pilot frequency locations designator of setting are handled the layer mapping are reserved Processing, wherein, the modulation system is used to indicate the corresponding bit data of each constellation point and the corresponding bit number of each pilot tone According to the pilot frequency locations designator is used to indicate insertion position of the pilot tone between each constellation point.

After processing so by pilot frequency locations reservation process module 823, pilot tone mapping block 84 can then be adjusted to described Data after system processing carry out pilot tone mapping processing, and what is reserved when pilot tone is mapped into the pilot frequency locations reservation process leads On frequency position.

Fig. 9 is the structure composition schematic diagram of the fourth embodiment of the device of the data processing of the present invention.As shown in figure 9, its It may include：Memory 91 and processor 92, wherein the processor 92 calls the program stored in the memory 91, to perform Following steps：

And processing is modulated to the pretreated data；

In some feasible embodiments, processor 92 can according to the corresponding modulation system of bit data flow of user and The layer mapped mode of setting carries out layer mapping processing to the bit data flow of the user after channel coding, wherein, the modulation methods Formula is used to indicate the corresponding bit data of each constellation point, and the layer mapped mode is used for the number of plies for indicating to be mapped.

In some feasible embodiments, the processor 92 performs what the data after channel coding were pre-processed Step also includes：

In some feasible embodiments, the processor 92 can be according to the corresponding modulation methods of bit data flow of user Data after formula and the pilot frequency locations designator of setting are handled the layer mapping carry out pilot frequency locations reservation process, wherein, institute Stating modulation system is used to indicate the corresponding bit data of each constellation point and the corresponding bit data of each pilot tone, the pilot bit Putting designator is used to indicate insertion position of the pilot tone between each constellation point.

In some feasible embodiments, 92 pairs of the processor pretreated data are modulated processing Afterwards, before multiple-input and multiple-output MIMO precoding processings are carried out to data, also execute the following steps：

, then can be to the data after the modulation treatment so before modulation treatment after progress pilot frequency locations reservation process Carry out in pilot tone mapping processing, the pilot frequency locations reserved when pilot tone is mapped into the pilot frequency locations reservation process.

In the specific implementation, the present invention also provides computer-readable storage medium, wherein, the computer-readable storage medium can be stored with journey Sequence, may include the part or all of step in each embodiment for the method that the present invention is provided when being performed to program.Described storage Medium can be magnetic disc, CD, read-only memory（Read-Only Memory, ROM）Or random access memory（Random Access Memory, RAM）Deng.

Through the above description of the embodiments, it is apparent to those skilled in the art that the present invention can be with Realized with hardware, or firmware is realized, or combinations thereof mode is realized.When implemented in software, can be by above-mentioned functions It is stored in computer-readable medium or is transmitted as one or more instructions on computer-readable medium or code.Meter Calculation machine computer-readable recording medium includes computer-readable storage medium and communication media, and wherein communication media includes being easy to from a place to another Any medium of individual place transmission computer program.Storage medium can be any usable medium that computer can be accessed.With Exemplified by this but it is not limited to：Computer-readable medium can include RAM, ROM, EEPROM, CD-ROM or other optical disc storages, disk Storage medium or other magnetic storage apparatus or can be used in carrying or store with instruction or data structure form expectation Program code and can by computer access any other medium.In addition.Any connection can be suitably turn into computer Computer-readable recording medium.If for example, software is to use coaxial cable, optical fiber cable, twisted-pair feeder, Digital Subscriber Line（DSL）Or such as The wireless technology of infrared ray, radio and microwave etc is transmitted from website, server or other remote sources, then coaxial electrical The wireless technology of cable, optical fiber cable, twisted-pair feeder, DSL or such as infrared ray, wireless and microwave etc is included in affiliated medium In fixing.As used in the present invention, disk（Disk）And dish（disc）Including compression laser disc（CD）, laser disc, laser disc, numeral it is logical Use laser disc（DVD）, floppy disk and Blu-ray Disc, the replicate data of the usual magnetic of which disk, and dish is then replicated with laser come optical Data.Above combination above should also be as being included within the protection domain of computer-readable medium.

In a word, the preferred embodiment of technical solution of the present invention is the foregoing is only, is not intended to limit the present invention's Protection domain.Within the spirit and principles of the invention, any modification, equivalent substitution and improvements made etc., should be included in Within protection scope of the present invention.

Claims

1. a kind of data processing method, it is characterised in that including：

Data after channel coding processing are pre-processed, the pretreatment includes layer mapping processing；

To the layer mapping handle after data carry out pilot frequency locations reservation process, and to the pilot frequency locations reservation process after Data are modulated processing；

Pilot tone mapping processing is carried out to the data after the modulation treatment, pilot tone is mapped to the pilot frequency locations reservation process When the pilot frequency locations that reserve on；

2. data processing method as claimed in claim 1, it is characterised in that the data to after channel coding are located in advance Reason also includes：

3. the data processing method as any one of claim 1-2, it is characterised in that the number to after channel coding According to progress layer mapping processing, including：

According to the corresponding modulation system of the bit data flow of user and the layer mapped mode of setting to the user's after channel coding Bit data flow carries out layer mapping processing, wherein, the modulation system is used to indicate the corresponding bit data of each constellation point, institute State layer mapped mode be used for indicate the number of plies that is mapped.

4. data processing method as claimed in claim 1 or 2, it is characterised in that the data after handling the layer mapping are entered Row pilot frequency locations reservation process, including：

The layer mapping is handled according to the pilot frequency locations designator of the corresponding modulation system of the bit data flow of user and setting Data afterwards carry out pilot frequency locations reservation process, wherein, the modulation system is used to indicate the corresponding bit number of each constellation point According to bit data corresponding with each pilot tone, the pilot frequency locations designator is used to indicate insertion position of the pilot tone between each constellation point Put.

5. data processing method as claimed in claim 4, it is characterised in that the pilot frequency locations designator is bit data String, the length of the bit data string is equal to the number of the corresponding constellation point of bit data flow of the user and required insertion Pilot tone number sum, the bit of different values represents pilot frequency locations and constellation point position respectively in the bit data string.

6. a kind of device of data processing, it is characterised in that including：

Channel coding module, for carrying out channel coding processing to data；

Pretreatment module, for being pre-processed to the data after channel coding module processing, the pretreatment includes layer Mapping is handled；

Layer mapping processing module, for carrying out layer mapping processing to the data after channel coding；

Pilot frequency locations reserve module, pre- for carrying out the progress of the data after layer mapping processing pilot frequency locations to the layer mapping block Stay processing；

Modulation module, processing is modulated for the pilot frequency locations to be reserved with the data after resume module；

Pilot tone mapping block, for carrying out pilot tone mapping processing to the data after the modulation module modulation treatment, by pilot tone The pilot frequency locations are mapped to reserve in the pilot frequency locations reserved during module pilot frequency locations reservation process；

Precoding module, dares to carrying out the pilot tone mapping block data progress multiple-input and multiple-output after pilot tone mapping processing MIMO precoding processings.

7. the device of data processing as claimed in claim 6, it is characterised in that the pretreatment module includes：

8. the device of data processing as claimed in claim 6, it is characterised in that the pretreatment module also includes：

Subcarrier maps processing module, the data after pilot frequency locations reservation process are carried out for the pilot frequency locations to be reserved with module Carry out subcarrier maps processing.

9. the device of the data processing as any one of claim 6-8, it is characterised in that the layer maps processing module Specifically for the corresponding modulation system of bit data flow according to user and the layer mapped mode of setting to the use after channel coding The bit data flow at family carries out layer mapping processing, wherein, the modulation system is used to indicate the corresponding bit number of each constellation point According to the layer mapped mode is used for the number of plies for indicating to be mapped.

10. the device of the data processing as described in claim 6 or 8, it is characterised in that it is specific that the pilot frequency locations reserve module Pilot frequency locations designator for the corresponding modulation system of bit data flow according to user and setting is handled the layer mapping Data afterwards carry out pilot frequency locations reservation process, wherein, the modulation system is used to indicate the corresponding bit number of each constellation point According to bit data corresponding with each pilot tone, the pilot frequency locations designator is used to indicate insertion position of the pilot tone between each constellation point Put.

11. the device of data processing as claimed in claim 10, it is characterised in that the pilot frequency locations designator is bit number According to string, the number that the length of the bit data string is equal to the corresponding constellation point of bit data flow of the user is inserted with required The bit of different values represents pilot frequency locations and constellation point position respectively in the number sum of the pilot tone entered, the bit data string Put.