CN103973395A - Data processing method, device and system in wireless communication - Google Patents

Data processing method, device and system in wireless communication Download PDF

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Publication number
CN103973395A
CN103973395A CN201310031889.5A CN201310031889A CN103973395A CN 103973395 A CN103973395 A CN 103973395A CN 201310031889 A CN201310031889 A CN 201310031889A CN 103973395 A CN103973395 A CN 103973395A
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data
processing
sequence
rotation
ofdm symbol
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王力
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Abstract

The invention provides a data processing method, device and system in wireless communication. The method comprises the steps that a transmitter carries out double repetition coding on a bit stream output by a coder to obtain first data, determines a data spinning sequence according to the position of pilot frequency on an OFDM symbol mapped by the first data, and spins the repetition part of the first data according to the data spinning sequence. According to the technical scheme, double repetition coding is carried out on the bit stream output by the coder to obtain the first data, the data spinning sequence is determined according to the position of the pilot frequency on the OFDM symbol mapped by the first data, the repetition part of the first data is spun according to the data spinning sequence, and therefore the PAPR can be lowered to the maximum degree according to the position of the mobile pilot frequency, and the system performance can be improved.

Description

Data processing method in radio communication, Apparatus and system
Technical field
The embodiment of the present invention relates to the communication technology, relates in particular to data processing method, Apparatus and system in a kind of radio communication.
Background technology
In order to promote coverage, wireless LAN communication has increased modulation and coding strategy (Modulation and Coding Scheme under 1MHz bandwidth, be called for short MCS) mode of MCS10 of 0rep2, be two-phase PSK (Binary Phase Shift Keying, be called for short BPSK) modulation, channel coding rate is 1/2, in an OFDM symbol, carry out 2 times of repeated encodings, because at each OFDM (Orthogonal Frequency Division Multiplexing, be called for short OFDM) in symbol, it is 2 times of i.e. 24 bits that 12 bits repeat, therefore papr (Peak to Average Power Ratio, be called for short PAPR) can promote, cause systematic function to decline.
The mode that prior art proposition is multiplied by XOR sequence in the data that repeat reduces PAPR, rear 12 repetition bits is carried out to XOR, and sequence is [100001010111].
But for introducing the mobile pilot tone scene of (Traveling Pilot is called for short TP), the position of pilot tone and data all changes, and prior art can not reduce PAPR to greatest extent, and then causes systematic function poor.
Summary of the invention
The embodiment of the present invention provides data processing method, the Apparatus and system in a kind of radio communication, can obtain lower peak-to-average power ratio in order to realize under different pilot frequency locations for the repeated encoding in OFDM symbol, and then improves the performance of system.
First aspect present invention, provides the data processing method in a kind of radio communication, comprising:
Transmitter carries out twice repeated encoding to the bit stream of encoder output, obtains the first data;
Pilot tone position on the orthogonal frequency division multiplex OFDM symbol that described transmitter shines upon according to described the first data, specified data rotatable sequence;
Described transmitter adopts described data rotation sequence to be rotated processing to the repeating part of described the first data.
In the possible implementation of the first of first aspect, described transmitter adopts described data rotation sequence to be rotated processing to the repeating part of described the first data, comprising:
The repeating part of bit rotatable sequence and described the first data is carried out XOR by described transmitter.
In conjunction with in the possible implementation of the first of first aspect or first aspect any one, in the possible implementation of the second of first aspect, described transmitter adopts described data rotation sequence to be rotated processing to the repeating part of described the first data, comprising:
Described transmitter adopts described data rotation sequence to be rotated processing to the repetition bits part of described the first data;
Described transmitter adopts after described data rotation sequence is rotated processing to the repeating part of described the first data, also comprises:
Described transmitter carries out interleaving treatment, modulation treatment and subcarrier mapping processing to rotating the first data after treatment.
In conjunction with in the possible implementation of the first of first aspect or first aspect any one, in the third possible implementation of first aspect, pilot tone position on the orthogonal frequency division multiplex OFDM symbol that described transmitter shines upon according to described the first data, before specified data rotatable sequence, described transmitter carries out twice repeated encoding to the bit stream of encoder output, after obtaining the first data, also comprise:
Described transmitter carries out interleaving treatment to described the first data;
Described transmitter adopts described data rotation sequence to be rotated processing to the repeating part of described the first data, comprising:
The repetition bits part of the data after described transmitter adopts described data rotation sequence to interleaving treatment is rotated processing;
Described transmitter adopts after described data rotation sequence is rotated processing to the repeating part of described the first data, also comprises:
Described transmitter carries out modulation treatment and subcarrier mapping processing to rotating the first data after treatment.
In conjunction with in the possible implementation of the first of first aspect or first aspect any one, in the 4th kind of possible implementation of first aspect, pilot tone position on the orthogonal frequency division multiplex OFDM symbol that described transmitter shines upon according to described the first data, before specified data rotatable sequence, described transmitter carries out twice repeated encoding to the bit stream of encoder output, after obtaining the first data, also comprise:
Described transmitter carries out interleaving treatment and modulation treatment to described the first data;
Described transmitter adopts described data rotation sequence to be rotated processing to the repeating part of described the first data, comprising:
Described transmitter converts and obtains the first data rotation sequence described data rotation sequence;
Described transmitter adopts described the first data rotation sequence to be rotated processing to the repetition modulation symbol part of modulating data after treatment;
Described transmitter adopts after described data rotation sequence is rotated processing to the repeating part of described the first data, also comprises:
Described transmitter carries out subcarrier mapping processing to rotating the first data after treatment.
In conjunction with in the possible implementation of the first of first aspect or first aspect any one, in the 5th kind of possible implementation of first aspect, pilot tone position on the orthogonal frequency division multiplex OFDM symbol that described transmitter shines upon according to described the first data, before specified data rotatable sequence, described transmitter carries out twice repeated encoding to the bit stream of encoder output, after obtaining the first data, also comprise:
Described transmitter carries out interleaving treatment, modulation treatment and subcarrier mapping to described the first data to be processed;
Described transmitter adopts described data rotation sequence to be rotated processing to the repeating part of described the first data, comprising:
Described transmitter converts and obtains the first data rotation sequence described data rotation sequence;
Described transmitter adopts the repetition modulation symbol part that described the first data rotation sequence is shone upon data after treatment to subcarrier to be rotated processing.
In conjunction with in five kinds of possible implementations of the first to the of first aspect or first aspect any one, in the 6th kind of possible implementation of first aspect, described the first data comprise signal domain data and data field data;
Described transmitter adopts described data rotation sequence to be rotated processing to the repeating part of described the first data, comprising:
Described transmitter adopts identical data rotatable sequence to be rotated processing to the repeating part in described signal domain data and data field data, or,
Described transmitter adopts different pieces of information rotatable sequence respectively the repeating part in described signal domain data and data field data to be rotated to processing.
In conjunction with in six kinds of possible implementations of the first to the of first aspect or first aspect any one, in the 7th kind of possible implementation of first aspect, pilot tone position on the orthogonal frequency division multiplex OFDM symbol that described transmitter shines upon according to described the first data, before specified data rotatable sequence, also comprise:
Described transmitter is for each pilot frequency locations, travel through the papr of each data rotation sequence under this pilot frequency locations, determine the data rotation sequence of papr minimum, using this data rotation sequence as the data rotation sequence corresponding with this pilot frequency locations.
Second aspect present invention, provides the data processing method in a kind of radio communication, comprising:
Receiver receives orthogonal frequency division multiplex OFDM symbol;
Described receiver is according to the pilot tone position on described OFDM symbol, specified data rotatable sequence;
Described receiver adopts the repeating part of the data of described data rotation sequence to the twice repeated encoding on described OFDM symbol to recover rotation and processes to obtain valid data.
In the possible implementation of the first of second aspect, described receiver adopts the repeating part of the data of described data rotation sequence to the twice repeated encoding on described OFDM symbol to recover rotation and processes to obtain valid data, comprising:
Described receiver carries out XOR to obtain valid data by the repeating part of the data of the twice repeated encoding on bit rotatable sequence and described OFDM symbol.
In conjunction with in the possible implementation of the first of second aspect or second aspect any one, in the possible implementation of the second of second aspect, described receiver, according to the pilot tone position on described OFDM symbol, before specified data rotatable sequence, also comprises:
Described receiver carries out the processing of subcarrier demapping, channel equalization, soft demodulation process and deinterleaving processing to the data of the twice repeated encoding on described OFDM symbol;
Described receiver adopts the repeating part of the data of described data rotation sequence to the twice repeated encoding on described OFDM symbol to recover rotation and processes to obtain valid data, comprising:
Described receiver adopts described data rotation sequence to recover rotation to the repetition bits part of deinterleaving data after treatment and processes to obtain valid data;
Described receiver adopts the repeating part of the data of described data rotation sequence to the twice repeated encoding on described OFDM symbol to recover rotation and processes with after obtaining valid data, also comprises:
Described receiver carries out bit level merging processing to the data of recovering the twice repeated encoding on rotation OFDM symbol after treatment.
In conjunction with in the possible implementation of the first of second aspect or second aspect any one, in the third possible implementation of second aspect, described receiver, according to the pilot tone position on described OFDM symbol, before specified data rotatable sequence, also comprises:
Described receiver carries out the processing of subcarrier demapping, channel equalization and deinterleaving processing to the data of the twice repeated encoding on described OFDM symbol;
Described receiver adopts the repeating part of the data of described data rotation sequence to the twice repeated encoding on described OFDM symbol to recover rotation and processes to obtain valid data, comprising:
Described receiver adopts described data rotation sequence to recover rotation to the repetition modulation symbol part of deinterleaving data after treatment and processes to obtain valid data;
Described receiver adopts the repeating part of the data of described data rotation sequence to the twice repeated encoding on described OFDM symbol to recover rotation and processes with after obtaining valid data, also comprises:
Described receiver carries out modulation symbol level merging processing to recovering the data of the twice repeated encoding on rotation OFDM symbol after treatment;
Described receiver merges data after treatment to modulation symbol level and carries out soft demodulation process.
In conjunction with in the possible implementation of the first of second aspect or second aspect any one, in the 4th kind of possible implementation of second aspect, described receiver, according to the pilot tone position on described OFDM symbol, before specified data rotatable sequence, also comprises:
Described receiver carries out subcarrier demapping to the data of the twice repeated encoding on described OFDM symbol and processes reconciliation interleaving treatment;
Described receiver adopts the repeating part of the data of described data rotation sequence to the twice repeated encoding on described OFDM symbol to recover rotation and processes to obtain valid data, comprising:
Described receiver adopts described data rotation sequence to recover rotation to the repetition modulation symbol part of deinterleaving data after treatment and processes to obtain valid data;
Described receiver adopts the repeating part of the data of described data rotation sequence to the twice repeated encoding on described OFDM symbol to recover rotation and processes with after obtaining valid data, also comprises:
Described receiver carries out channel equalization and high specific merging processing to recovering the data of the twice repeated encoding on rotation OFDM symbol after treatment;
Described receiver merges data after treatment to high specific and carries out soft demodulation process.
In conjunction with in four kinds of possible implementations of the first to the of second aspect or second aspect any one, in the 5th kind of possible implementation of second aspect, the data of the twice repeated encoding on described OFDM symbol comprise signal domain data and data field data;
Described receiver adopts the repeating part of the data of described data rotation sequence to the twice repeated encoding on described OFDM symbol to recover rotation and processes to obtain valid data, comprising:
Described receiver adopts identical data rotatable sequence to recover rotation to the repeating part in described signal domain data and data field data and processes to obtain valid data, or,
Described receiver adopts different pieces of information rotatable sequence respectively the repeating part in described signal domain data and data field data to be recovered to rotation and processes to obtain valid data.
In conjunction with in five kinds of possible implementations of the first to the of second aspect or second aspect any one, in the 6th kind of possible implementation of second aspect, if described receiver adopts at least two antenna receiving signals, after the described data to the twice repeated encoding on described OFDM symbol are carried out the processing of subcarrier demapping, also comprise:
Described receiver to described at least two antenna receptions to signal carry out data merge process.
In conjunction with in six kinds of possible implementations of the first to the of second aspect or second aspect any one, in the 7th kind of possible implementation of second aspect, described receiver, according to the pilot tone position on described OFDM symbol, before specified data rotatable sequence, also comprises:
Described receiver is for each pilot frequency locations, travel through the papr of each data rotation sequence under this pilot frequency locations, determine the data rotation sequence of papr minimum, using this data rotation sequence as the data rotation sequence corresponding with this pilot frequency locations.
Third aspect present invention, provides the data processing equipment in a kind of radio communication, and the data processing equipment in described radio communication is transmitter, comprising:
Coding module, for the bit stream of encoder output is carried out to twice repeated encoding, obtains the first data;
The first determination module, for the pilot tone position on the orthogonal frequency division multiplex OFDM symbol shining upon according to described the first data, specified data rotatable sequence;
The first processing module, for adopting described data rotation sequence to be rotated processing to the repeating part of described the first data.
In the possible implementation of the first of the third aspect, described the first processing module, specifically for carrying out XOR by the repeating part of bit rotatable sequence and described the first data.
In conjunction with in the possible implementation of the first of the third aspect or first aspect any one, in the possible implementation of the second of the third aspect, described the first processing module, specifically for adopting described data rotation sequence to be rotated processing to the repetition bits part of described the first data;
Described device, also comprises:
The second processing module, for after the described data rotation sequence of described employing is rotated processing to the repeating part of described the first data, carries out interleaving treatment, modulation treatment and subcarrier mapping processing to rotating the first data after treatment.
In conjunction with in the possible implementation of the first of the third aspect or the third aspect any one, in the third possible implementation of the third aspect, also comprise:
The 3rd processing module, for the pilot tone position on the described orthogonal frequency division multiplex OFDM symbol shining upon according to described the first data, before specified data rotatable sequence, the described bit stream to encoder output carries out twice repeated encoding, after obtaining the first data, described the first data are carried out to interleaving treatment;
Described the first processing module, is rotated processing specifically for the repetition bits part of the data after adopting described data rotation sequence to interleaving treatment;
Described the 3rd processing module, also for after the described data rotation sequence of described employing is rotated processing to the repeating part of described the first data, to rotating, the first data after treatment are carried out modulation treatment and subcarrier mapping is processed.
In conjunction with in the possible implementation of the first of the third aspect or the third aspect any one, in the 4th kind of possible implementation of the third aspect, also comprise:
The 4th processing module, for the pilot tone position on the described orthogonal frequency division multiplex OFDM symbol shining upon according to described the first data, before specified data rotatable sequence, the described bit stream to encoder output carries out twice repeated encoding, after obtaining the first data, described the first data are carried out to interleaving treatment and modulation treatment;
Described the first processing module, specifically for:
Described data rotation sequence is converted and obtains the first data rotation sequence;
Adopt described the first data rotation sequence to be rotated processing to the repetition modulation symbol part of modulating data after treatment;
Described the 4th processing module, also for after the described data rotation sequence of described employing is rotated processing to the repeating part of described the first data, carries out subcarrier mapping processing to rotating the first data after treatment.
In conjunction with in the possible implementation of the first of the third aspect or the third aspect any one, in the 5th kind of possible implementation of the third aspect, also comprise:
The 5th processing module, for the pilot tone position on the described orthogonal frequency division multiplex OFDM symbol shining upon according to described the first data, before specified data rotatable sequence, the described bit stream to encoder output carries out twice repeated encoding, after obtaining the first data, described the first data are carried out to interleaving treatment, modulation treatment and subcarrier mapping and process;
Described the first processing module, specifically for:
Described data rotation sequence is converted and obtains the first data rotation sequence;
Adopt the repetition modulation symbol part that described the first data rotation sequence is shone upon data after treatment to subcarrier to be rotated processing.
In conjunction with in five kinds of possible implementations of the first to the of the third aspect or the third aspect any one, in the 6th kind of possible implementation of the third aspect, described the first data comprise signal domain data and data field data;
Described the first processing module, also for:
Adopt identical data rotatable sequence to be rotated processing to the repeating part in described signal domain data and data field data, or,
Adopt different pieces of information rotatable sequence respectively the repeating part in described signal domain data and data field data to be rotated to processing.
In conjunction with in six kinds of possible implementations of the first to the of the third aspect or the third aspect any one, in the 7th kind of possible implementation of the third aspect, described the first processing module, also for the pilot tone position on the described orthogonal frequency division multiplex OFDM symbol shining upon according to described the first data, before specified data rotatable sequence, for each pilot frequency locations, travel through the papr of each data rotation sequence under this pilot frequency locations, determine the data rotation sequence of papr minimum, using this data rotation sequence as the data rotation sequence corresponding with this pilot frequency locations.
Fourth aspect present invention, provides the data processing equipment in a kind of radio communication, and the data processing equipment in described radio communication is receiver, comprising:
Receiver module, for receiving orthogonal frequency division multiplex OFDM symbol;
The second determination module, for according to the pilot tone position on described OFDM symbol, specified data rotatable sequence;
The 6th processing module, processes to obtain valid data for adopting the repeating part of the data of described data rotation sequence to the twice repeated encoding on described OFDM symbol to recover rotation.
In the possible implementation of the first of fourth aspect, described the 6th processing module, specifically for carrying out the repeating part of the data of the twice repeated encoding on bit rotatable sequence and described OFDM symbol XOR to obtain valid data.
In conjunction with in the possible implementation of the first of fourth aspect or fourth aspect any one, in the possible implementation of the second of fourth aspect, also comprise:
The 7th processing module, be used for described according to the pilot tone position on described OFDM symbol, before specified data rotatable sequence, the data of the twice repeated encoding on described OFDM symbol are carried out to the processing of subcarrier demapping, channel equalization, soft demodulation process and deinterleaving processing;
Described the 6th processing module, processes to obtain valid data specifically for adopting described data rotation sequence to recover rotation to the repetition bits part of deinterleaving data after treatment;
Described the 7th processing module, also recover rotation for the repeating part of the data to the twice repeated encoding on described OFDM symbol in the described data rotation sequence of described employing and process with after obtaining valid data, the data of recovering the twice repeated encoding on rotation OFDM symbol after treatment are carried out to bit level merging processing.
In conjunction with in the possible implementation of the first of fourth aspect or fourth aspect any one, in the third possible implementation of fourth aspect, also comprise:
The 8th processing module, be used for described according to the pilot tone position on described OFDM symbol, before specified data rotatable sequence, the data of the twice repeated encoding on described OFDM symbol are carried out to the processing of subcarrier demapping, channel equalization and deinterleaving processing;
Described the 6th processing module, processes to obtain valid data specifically for adopting described data rotation sequence to recover rotation to the repetition modulation symbol part of deinterleaving data after treatment;
Described the 8th processing module, also for:
The repeating part of the data in the described data rotation sequence of described employing to the twice repeated encoding on described OFDM symbol recovers rotation processing with after obtaining valid data, the data of the twice repeated encoding on recovery rotation OFDM symbol after treatment is carried out to modulation symbol level and merge processing;
Modulation symbol level is merged to data after treatment and carry out soft demodulation process.
In conjunction with in the possible implementation of the first of fourth aspect or fourth aspect any one, in the 4th kind of possible implementation of fourth aspect, also comprise:
The 9th processing module, for described according to the pilot tone position on described OFDM symbol, before specified data rotatable sequence, to the data of the twice repeated encoding on described OFDM symbol carry out subcarrier demapping process conciliate interleaving treatment;
Described the 6th processing module, processes to obtain valid data specifically for adopting described data rotation sequence to recover rotation to the repetition modulation symbol part of deinterleaving data after treatment;
Described the 9th processing module, also for:
The repeating part of the data in the described data rotation sequence of described employing to the twice repeated encoding on described OFDM symbol recovers rotation processing with after obtaining valid data, and to recovering, the data of the twice repeated encoding on rotation OFDM symbol after treatment are carried out channel equalization and high specific merges processing;
High specific is merged to data after treatment and carry out soft demodulation process.
In conjunction with in four kinds of possible implementations of the first to the of fourth aspect or fourth aspect any one, in the 5th kind of possible implementation of fourth aspect, the data of the twice repeated encoding on described OFDM symbol comprise signal domain data and data field data;
The 6th processing module, also for:
Adopt identical data rotatable sequence to recover rotation to the repeating part in described signal domain data and data field data and process to obtain valid data, or,
Adopt different pieces of information rotatable sequence respectively the repeating part in described signal domain data and data field data to be recovered to rotation and process to obtain valid data.
In conjunction with in five kinds of possible implementations of the first to the of fourth aspect or fourth aspect any one, in the 6th kind of possible implementation of fourth aspect, if adopt at least two antenna receiving signals, described device, also comprises:
The tenth processing module, for after the described data to the twice repeated encoding on described OFDM symbol are carried out the processing of subcarrier demapping, to described at least two antenna receptions to signal carry out data merge process.
In conjunction with in six kinds of possible implementations of the first to the of fourth aspect or fourth aspect any one, in the 7th kind of possible implementation of fourth aspect, described the 6th processing module, also for described according to the pilot tone position on orthogonal frequency division multiplex OFDM symbol, before specified data rotatable sequence, for each pilot frequency locations, travel through the papr of each data rotation sequence under this pilot frequency locations, determine the data rotation sequence of papr minimum, using this data rotation sequence as the data rotation sequence corresponding with this pilot frequency locations.
Fifth aspect present invention, a kind of wireless communication system is provided, comprise as the data processing equipment in the radio communication in any one possible implementation of the third aspect or the third aspect, and as the data processing equipment in the radio communication in any one possible implementation of fourth aspect or fourth aspect.
Data processing method in the radio communication that the embodiment of the present invention provides, Apparatus and system, by the bit stream of encoder output is carried out to twice repeated encoding, obtain the first data, pilot tone position on the orthogonal frequency division multiplex OFDM symbol shining upon according to the first data, specified data rotatable sequence, adopt again data rotation sequence to be rotated processing to the repeating part of the first data, can realize according to the position of mobile pilot tone and farthest reduce PAPR, and then improve the performance of system.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the flow chart of the data processing method embodiment mono-in radio communication provided by the invention;
Fig. 2 is the flow chart of the data processing method embodiment bis-in radio communication provided by the invention;
Fig. 3 is the flow chart of the data processing method embodiment tri-in radio communication provided by the invention;
Fig. 4 is the flow chart of the data processing method embodiment tetra-in radio communication provided by the invention;
Fig. 5 is the flow chart of the data processing method embodiment five in radio communication provided by the invention;
Fig. 6 is the flow chart of the data processing method embodiment seven in radio communication provided by the invention;
Fig. 7 is the flow chart of the data processing method embodiment eight in radio communication provided by the invention;
Fig. 8 is the flow chart of the data processing method embodiment nine in radio communication provided by the invention;
Fig. 9 is the flow chart of the data processing method embodiment ten in radio communication provided by the invention;
Figure 10 is the flow chart of the data processing method embodiment 12 in radio communication provided by the invention;
Figure 11 is the structural representation of the data processing equipment embodiment mono-in radio communication provided by the invention;
Figure 12 is the structural representation of the data processing equipment embodiment bis-in radio communication provided by the invention;
Figure 13 is the structural representation of the data processing equipment embodiment tri-in radio communication provided by the invention;
Figure 14 is the structural representation of the data processing equipment embodiment tetra-in radio communication provided by the invention;
Figure 15 is the structural representation of the data processing equipment embodiment five in radio communication provided by the invention;
Figure 16 is the structural representation of the data processing equipment embodiment seven in radio communication provided by the invention;
Figure 17 is the structural representation of the data processing equipment embodiment eight in radio communication provided by the invention;
Figure 18 is the structural representation of the data processing equipment embodiment nine in radio communication provided by the invention;
Figure 19 is the structural representation of the data processing equipment embodiment ten in radio communication provided by the invention;
Figure 20 is the structural representation of the data processing equipment embodiment 11 in radio communication provided by the invention;
Figure 21 is the structural representation of the data processing equipment embodiment 12 in radio communication provided by the invention;
Figure 22 is the structural representation of wireless communication system embodiment mono-provided by the invention;
Figure 23 is the structural representation of wireless communication system embodiment bis-provided by the invention.
Embodiment
For making object, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Fig. 1 is the flow chart of the data processing method embodiment mono-in radio communication provided by the invention, and as shown in Figure 1, the data processing method in the radio communication of the present embodiment comprises:
S101, transmitter carry out twice repeated encoding to the bit stream of encoder output, obtain the first data.
Specifically, in WLAN system, in the time of 1MHz bandwidth, adopt the code modulation mode of MSC10 individual traffic in the situation that, be specially BPSK modulation, channel coding rate is 1/2, in an OFDM symbol, carry out 2 times of repeated encodings, wherein under 1MHz bandwidth, have 24 data subcarriers and 2 pilot sub-carriers, reference numeral is [13:-11:13].For the bit stream of channel encoder output, every 12 bits carry out 2 times of repeated encodings one time, obtain the first data, concrete mapping rule is that 12 bit mappings of channel encoder output arrive front 12 data subcarriers, and this 12 bit and flip bits sequence carry out being mapped to rear 12 data subcarriers after XOR budget.
Pilot tone position on the OFDM symbol that S102, transmitter shine upon according to the first data, specified data rotatable sequence.
Specifically, the mobile pilot bit of 1MHz is equipped with 13 kinds, is respectively [13,1], [12,2], [11,3], [10,4], [9,5], [8,6], [7,7], [6,8], [5,9], [4,10], [3,11], [2,12], [1,13], 24 sub-carrier positions after the corresponding deduction of data subcarrier pilot sub-carrier.The value of mobile pilot tone be [1.5 ,-1.5] and [1.5,1.5] in intersymbol alternate cycles, the value on data subcarrier is BPSK modulation symbol+1 or-1.
Alternatively, before S102, can also comprise: transmitter is for each pilot frequency locations, travel through the papr of each data rotation sequence under this pilot frequency locations, determine the data rotation sequence of papr minimum, using this data rotation sequence as the data rotation sequence corresponding with this pilot frequency locations.
Specifically, be 12 bits for the data rotation sequence that the repeating part that repeats the first data after twice coding is rotated to processing, therefore for every kind of pilot frequency locations and specific data rotation sequence, the corresponding 2e12=4096 kind of 12 Bit datas may, 2 kinds of pilot tones may, totally 8192 kinds of possibilities, calculate PAPR and obtain complementary cumulative distribution function (Complementary CumulativeDistribution Function corresponding to maximum value, being called for short CCDF) probability is 1/8192 to approximate 1e-4, again because the corresponding 2e12=4096 kind of data rotation sequence of 12 bits may, 2e25=33554432 kind may altogether, therefore the maximum of 8192 PAPR kinds corresponding to every kind of data rotation sequence under a kind of special pilot position, be the value that every kind of data rotation sequence is 1e-4 at PAPR CCDF, from 4096 values, choose again data rotation sequence corresponding to minimum value, be the data rotation sequence of PAPR minimum under a kind of special pilot position, adopt identical traversal search operation can obtain the data rotation sequence of 13 12 bits 13 kinds of pilot frequency locations, and a kind of special pilot position obtain the data rotation sequence of minimum PAPR may be not unique, but its performance is identical, therefore the optional one guarantee transmitting terminal of data and the data rotation sequence of receiving terminal are consistent.
Above-mentionedly adopt the operation of identical traversal search 13 kinds of pilot frequency locations by adopting, can obtain a kind of data rotation matrix that includes 13 data rotatable sequences, this data rotation matrix is: 001101000100, 001111010011, 011010111101, 011011000100, 100001011101, 000100011100, 011110010010, 000010101000, 110010001101, 001100111010, 001111010111, 010010111101, 001100100100, wherein, the first row to the 13 is corresponding pilot frequency locations [13 successively, 1], [12, 2], [11, 3], [10, 4], [9, 5], [8, 6], [7, 7], [6, 8], [5, 9], [4, 10], [3, 11], [2, 12], [1, 13], so pilot tone position on the OFDM symbol that definite the first data are shone upon, can be according to above-mentioned corresponding relation, determine the data rotation sequence that pilot tone position is corresponding.
Be understandable that data rotation sequence corresponding to pilot tone position chosen in the pilot tone position on the OFDM symbol that can also shine upon according to the pilot frequency locations of the first data in preset data rotation sequence or data rotation matrix.
S103, transmitter adopt data rotation sequence to be rotated processing to the repeating part of the first data.
Alternatively, S103 can be that the repeating part of bit rotatable sequence and the first data is carried out XOR by transmitter.
Be understandable that, bit rotatable sequence is that in sequence, element value is 0 or 1 data rotation sequence, data rotation sequence can also be other forms, the repeating part of bit rotatable sequence and the first data is carried out to XOR, can realize the data of the repeating part of the first data are carried out to 180 ° of reversions, and other can realize data are rotated to the processing method of processing also can be for the repeating part of the first data being rotated to processing, and can carry out to the repeating part of the first data the rotation of other angles, for example, by 90 ° of data rotations, 270 °.
Table 1
Table 1 is depicted as mobile pilot frequency locations that MCS10 is corresponding and the PAPRCCDF value of Different treatments, CCDF is the concept in order to represent that in ofdm system, the statistical property of PAPR is introduced, be defined as the probability that peak to average in multicarrier transmission systems exceedes a certain threshold value, CCDF is that 1e-4 represents probability corresponding threshold value while being 1e-4, the probability that is greater than this thresholding is 1e-4, and for example in table 1, " 9.5 " represent that the probability that PAPR is greater than 9.5dB is 1e-4.
Data processing method in the radio communication providing of the present embodiment, determine and make the minimum data rotation sequence of PAPR CCDF value respectively for every kind of pilot frequency locations, and adopt data rotation sequence corresponding to pilot frequency locations to be rotated processing to the repeating part of the first data, can farthest reduce PAPR, the technical scheme of the present embodiment reduces the effect of PAPR also can pass through simulation results show in table 1.
The present embodiment for scene for the equipment in wireless communication system for MCS10 mode carrying out data processing of carrying out while sending, also be applicable to 1MHz replication mode in WLAN (1MHz duplicate mode) simultaneously, in 1MHz replication mode, first every 1MHz is carried out carrying out after the data processing method of the present embodiment after repetition twice coding, then carry out subsequent operation.
The executive agent of the present embodiment can be any one equipment that can send data in wireless communication system, for example transmitter, go for adopting the different system of pilot frequency locations possibility in the interior repeated encoding of OFDM symbol and each symbol, as WLAN (Wireless Local Area Networks, be called for short WLAN), Long Term Evolution (Long Term Evolution, be called for short LTE), worldwide interoperability for microwave access (Worldwide Interoperability for Microwave Access, be called for short WiMax), digital video broadcasting (Digital Video Broadcasting, be called for short DVB) etc.
Data processing method in the radio communication that the present embodiment provides, by transmitter, the bit stream of encoder output is carried out to twice repeated encoding, obtain the first data, pilot tone position on the orthogonal frequency division multiplex OFDM symbol shining upon according to the first data, specified data rotatable sequence, adopt again data rotation sequence to be rotated processing to the repeating part of the first data, can realize according to the position of mobile pilot tone and farthest reduce PAPR, and then improve the performance of system.
Fig. 2 is the flow chart of the data processing method embodiment bis-in radio communication provided by the invention, as shown in Figure 2, data processing method in the radio communication of the present embodiment is on basis embodiment illustrated in fig. 1, other processing to data sending terminal after data rotation is processed describe, and comprising:
S201, transmitter carry out twice repeated encoding to the bit stream of encoder output, obtain the first data.
Pilot tone position on the OFDM symbol that S202, transmitter shine upon according to the first data, specified data rotatable sequence.
S203, transmitter adopt data rotation sequence to be rotated processing to the repetition bits part of the first data.
For instance, for MCS10 mode, can be rotated processing to rear 12 bits of the first data.
S204, transmitter carry out interleaving treatment, modulation treatment and subcarrier mapping processing to rotating the first data after treatment.
Specifically, transmitter carries out interleaving treatment, modulation treatment and subcarrier mapping and is treated to and before the first data send, needs the processing carried out rotating the first data after treatment, in addition, can also comprise the operations such as Fourier transform, the present embodiment does not limit.
The present embodiment for scene for the equipment in wireless communication system for MCS10 mode carrying out data processing of carrying out while sending, also be applicable to the 1MHz replication mode in WLAN simultaneously, in 1MHz replication mode, first every 1MHz is carried out carrying out after the data processing method of the present embodiment after repetition twice coding, carry out subsequent operation, the executive agent transmitter of the present embodiment can be any one equipment that can send data in wireless communication system again.
Data processing method in the radio communication that the present embodiment provides, by transmitter, the bit stream of encoder output is carried out to twice repeated encoding, obtain the first data, pilot tone position on the orthogonal frequency division multiplex OFDM symbol shining upon according to the first data, specified data rotatable sequence, adopt again data rotation sequence to be rotated processing to the repeating part of the first data, carry out interleaving treatment to rotating the first data after treatment, modulation treatment and subcarrier mapping are processed, can realize according to the position of mobile pilot tone and farthest reduce PAPR, and then the performance of raising system.
Fig. 3 is the flow chart of the data processing method embodiment tri-in radio communication provided by the invention, as shown in Figure 3, data processing method in the radio communication of the present embodiment and difference embodiment illustrated in fig. 2 are: adopt the variation that sequential occurs between data rotation sequence is rotated processing operation to the repeating part of the first data and other processing, after the operation that the repetition bits part of the data after adopting data rotation sequence to interleaving treatment is rotated processing occurs in interleaving treatment, before modulation treatment and subcarrier mapping process, comprising:
S301, transmitter carry out twice repeated encoding to the bit stream of encoder output, obtain the first data.
S302, transmitter carry out interleaving treatment to the first data.
Specifically, the first data are carried out after interleaving treatment, the position of data can change.
Pilot tone position on the OFDM symbol that S303, transmitter shine upon according to the first data, specified data rotatable sequence.
The repetition bits part of the data after S304, transmitter adopt data rotation sequence to interleaving treatment is rotated processing.
For instance, rear 12 bits of the data after can adopting data rotation sequence to interleaving treatment are rotated processing.
S305, transmitter carry out modulation treatment and subcarrier mapping processing to rotating the first data after treatment.
Specifically, because MCS10 mode is BPSK modulation, a corresponding bit of modulation symbol, so the operation that the repetition bits part of the data after adopting data rotation sequence to interleaving treatment is rotated processing as shown in Figure 2 embodiment occurs in before interleaving treatment, modulation treatment and subcarrier mapping process, after also embodiment occurs in interleaving treatment as shown in Figure 3, before modulation treatment and subcarrier mapping process.
The present embodiment for scene for the equipment in wireless communication system for MCS10 mode carrying out data processing of carrying out while sending, also be applicable to the 1MHz replication mode in WLAN simultaneously, in 1MHz replication mode, first every 1MHz is carried out carrying out after the data processing method of the present embodiment after repetition twice coding, carry out subsequent operation, the executive agent transmitter of the present embodiment can be any one equipment that can send data in wireless communication system again.
Data processing method in the radio communication that the present embodiment provides, by transmitter, the bit stream of encoder output is carried out to twice repeated encoding, obtain the first data, the first data are carried out to interleaving treatment, pilot tone position on the orthogonal frequency division multiplex OFDM symbol shining upon according to the first data, specified data rotatable sequence, adopt again data rotation sequence to be rotated processing to the repeating part of the first data, carry out the mapping of modulation treatment and subcarrier and process can realize according to the position of mobile pilot tone and farthest reduce PAPR rotating the first data after treatment, and then the performance of raising system.
Fig. 4 is the flow chart of the data processing method embodiment tetra-in radio communication provided by the invention, as shown in Figure 4, data processing method in the radio communication of the present embodiment and Fig. 2 and difference embodiment illustrated in fig. 3 are also: adopt the variation that sequential occurs between data rotation sequence is rotated processing operation to the repeating part of the first data and other processing, after the operation that the repetition bits part of the data after adopting data rotation sequence to interleaving treatment is rotated processing occurs in interleaving treatment and modulation treatment, before subcarrier mapping processes, comprising:
S401, transmitter carry out twice repeated encoding to the bit stream of encoder output, obtain the first data.
S402, transmitter carry out interleaving treatment and modulation treatment to the first data.
Pilot tone position on the OFDM symbol that S403, transmitter shine upon according to the first data, specified data rotatable sequence.
S404, transmitter convert and obtain the first data rotation sequence data rotatable sequence.
Specifically, data after modulation treatment are the form of BPSK modulation symbol, so transmitter need to convert and obtain the first data rotation sequence data rotatable sequence, for the repetition modulation symbol part of modulating data after treatment is rotated to processing, data rotation sequence transformation criterion is 0 to become 1,1 and become-1.
S405, transmitter adopt the first data rotation sequence to be rotated processing to the repetition modulation symbol part of modulating data after treatment.
For instance, transmitter can adopt the first data rotation sequence to be rotated processing to rear 12 BPSK modulation symbols of modulating data after treatment.
S406, transmitter carry out subcarrier mapping processing to rotating the first data after treatment.
The present embodiment for scene for the equipment in wireless communication system for MCS10 mode carrying out data processing of carrying out while sending, also 1MHz replication mode in being applicable in WLAN simultaneously, in 1MHz replication mode, first every 1MHz is carried out carrying out after the data processing method of the present embodiment after repetition twice coding, carry out subsequent operation, the executive agent transmitter of the present embodiment can be any one equipment that can send data in wireless communication system again.
Data processing method in the radio communication that the present embodiment provides, by transmitter, the bit stream of encoder output is carried out to twice repeated encoding, obtain the first data, the first data are carried out to interleaving treatment and modulation treatment, pilot tone position on the orthogonal frequency division multiplex OFDM symbol shining upon according to the first data, specified data rotatable sequence, adopt again the first data rotation sequence after conversion to be rotated processing to the repeating part of the first data, carry out subcarrier mapping processing to rotating the first data after treatment, can realize according to the position of mobile pilot tone and farthest reduce PAPR, and then the performance of raising system.
Fig. 5 is the flow chart of the data processing method embodiment five in radio communication provided by the invention, as shown in Figure 5, data processing method in the radio communication of the present embodiment and Fig. 2, Fig. 3 and difference embodiment illustrated in fig. 4 are also: adopt the variation that sequential occurs between data rotation sequence is rotated processing operation to the repeating part of the first data and other processing, the operation that the repetition bits part of the data after adopting data rotation sequence to interleaving treatment is rotated processing occurs in after interleaving treatment, modulation treatment and subcarrier mapping process, and comprising:
S501, transmitter carry out twice repeated encoding to the bit stream of encoder output, obtain the first data.
S502, transmitter carry out interleaving treatment, modulation treatment and subcarrier mapping to the first data to be processed.
Pilot tone position on the OFDM symbol that S503, transmitter shine upon according to the first data, specified data rotatable sequence.
S504, transmitter convert and obtain the first data rotation sequence data rotatable sequence.
Specifically, data after modulation treatment are the form of BPSK modulation symbol, so transmitter need to convert and obtain the first data rotation sequence data rotatable sequence, for the repetition modulation symbol part of modulating data after treatment is rotated to processing, data rotation sequence transformation criterion is 0 to become 1,1 and become-1.
S505, transmitter adopt the repetition modulation symbol part that the first data rotation sequence is shone upon data after treatment to subcarrier to be rotated processing.
For instance, transmitter can adopt rear 12 BPSK modulation symbols that the first data rotation sequence is shone upon data after treatment to subcarrier to be rotated processing.
The present embodiment for scene for the equipment in wireless communication system for MCS10 mode carrying out data processing of carrying out while sending, the executive agent transmitter of the present embodiment can be any one equipment that can send data in wireless communication system.
Data processing method in the radio communication that the present embodiment provides, by transmitter, the bit stream of encoder output is carried out to twice repeated encoding, obtain the first data, the first data are carried out to interleaving treatment, modulation treatment and subcarrier mapping are processed, pilot tone position on the orthogonal frequency division multiplex OFDM symbol shining upon according to the first data, specified data rotatable sequence, adopt again the first data rotation sequence after conversion to be rotated processing to the repeating part of the first data, can realize according to the position of mobile pilot tone and farthest reduce PAPR, and then the performance of raising system.
Data processing method embodiment five, the first data in radio communication provided by the invention can comprise signal domain data and data field data, adopt data rotation sequence to be rotated processing to the repeating part of the first data, comprising:
Transmitter adopts identical data rotatable sequence to be rotated processing to the repeating part in described signal domain data and data field data, or,
Transmitter adopts different pieces of information rotatable sequence respectively the repeating part in described signal domain data and data field data to be rotated to processing.
Specifically, for the mobile pilot tone of signal domain, because itself having the bit of part position, signal domain content determines, so the number of times of the modulation symbol of data subcarrier traversal is less than 2e12 in an OFDM symbol, signal domain data and data field data can be used same rotatable sequence or spin matrix, or signal domain data and data field data are used respectively different rotatable sequences or spin matrix.
The present embodiment for scene for the equipment in wireless communication system for MCS10 mode carrying out data processing of carrying out while sending, the executive agent transmitter of the present embodiment can be any one equipment that can send data in wireless communication system.
Data processing method in the radio communication that the present embodiment provides, by transmitter, the bit stream of encoder output is carried out to twice repeated encoding, obtain the first data, specified data rotatable sequence, adopt again the first data rotation sequence after conversion to be rotated processing to the repeating part of the first data, signal domain data and the data field data of the first data can be used same rotatable sequence or spin matrix, or signal domain data and data field data are used respectively different rotatable sequences or spin matrix, can realize according to the position of mobile pilot tone and farthest reduce PAPR, and then the performance of raising system.
The data processing method of the transmitting terminal of one to six pair of data of above-described embodiment is illustrated, because adopting data rotation sequence to carry out rotation to data, processes the transmitting terminal of data, recover rotation processing to obtain valid data so need to carry out corresponding data to data at the receiving terminal of data, to ensure the consistency of data input and data output, below the data processing method of data receiver is described.
Fig. 6 is the flow chart of the data processing method embodiment seven in radio communication provided by the invention, and as shown in Figure 6, the data processing method in the radio communication of the present embodiment, comprising:
S601, receiver receive OFDM symbol.
S602, receiver are according to the pilot tone position on OFDM symbol, specified data rotatable sequence.
Specifically, the mobile pilot bit of 1MHz is equipped with 13 kinds, is respectively [13,1], [12,2], [11,3], [10,4], [9,5], [8,6], [7,7], [6,8], [5,9], [4,10], [3,11], [2,12], [1,13], 24 sub-carrier positions after the corresponding deduction of data subcarrier pilot sub-carrier.The value of mobile pilot tone be [1.5 ,-1.5] and [1.5,1.5] in intersymbol alternate cycles, the value on data subcarrier is BPSK modulation symbol+1 or-1.
Alternatively, before S602, can also comprise: receiver is for each pilot frequency locations, travel through the papr of each data rotation sequence under this pilot frequency locations, determine the data rotation sequence of papr minimum, using this data rotation sequence as the data rotation sequence corresponding with this pilot frequency locations.
Be understandable that data rotation sequence corresponding to pilot tone position chosen in the pilot tone position on the OFDM symbol that receiver can also shine upon according to the pilot frequency locations of data in preset data rotation sequence or data rotation matrix.
It should be noted that, same secondary data send and DRP data reception process in, the pilot frequency locations of the data of transmitting terminal and receiving terminal is identical, so data rotation sequence corresponding to pilot frequency locations is also identical.
It will be appreciated by persons skilled in the art that receiver receives after OFDM symbol, can carry out as required the processing operations such as Fourier transform, then according to the pilot tone position on OFDM symbol, specified data rotatable sequence, the present invention is not as limit.
S603, receiver adopt the repeating part of the data of data rotation sequence to the twice repeated encoding on OFDM symbol to recover rotation and process to obtain valid data.
For instance, receiver is in the time receiving the data of MCS10, data are recovered to rotation to be processed the rotatable sequence that adopts and converts for data transmitting equipment recovers to data the rotatable sequence that rotation processing adopts, concrete criterion is 0 to become 1,1 becomes-1, this is that the rotatable sequence adopting also needs to convert because data can change after channel sends.
Specifically, owing to having carried out the rotation processing of data at data sending terminal, think and keep the consistency of data, need to carry out corresponding data at data receiver and recover rotation and process to obtain valid data.
It is the inverse process of the data rotation processing of data sending terminal that the data of data receiver are recovered rotation processing, for instance, if the data rotation of data sending terminal is treated to, data are carried out to reversion processing, by 180 ° of data rotations, the data of data receiver are recovered rotation processing needs 180 ° of rotating Vortexes or reverse rotation-180 °, if the data rotation of data sending terminal is processed 90 ° of data rotations, the data of data receiver are recovered rotation processing needs 270 ° of rotating Vortexes or reverse rotation-90 °.
Alternatively, S603 can comprise that receiver carries out XOR to obtain valid data by the repeating part of the data of the twice repeated encoding on bit rotatable sequence and OFDM symbol.
Be understandable that, bit rotatable sequence is that in sequence, element value is 0 or 1 data rotation sequence, data rotation sequence can also be other forms, the repeating part of data rotation sequence and the first data is carried out to XOR, can realize the data of the repeating part of the first data are carried out to 180 ° of reversions, and other can realize data are recovered to processing method that rotation processes also can be for the repeating part of the first data being recovered to rotation processing, and can carry out to the repeating part of the first data the rotation of other angles, for example, by 90 ° of data rotations, 270 °.
The present embodiment for the processing carried out in the time carrying out data receiver for MCS10 mode for the equipment in wireless communication system of scene, the executive agent receiver of the present embodiment can be any one equipment that can receive data in wireless communication system, go for adopting the different system of pilot frequency locations possibility in the interior repeated encoding of OFDM symbol and each symbol, as WLAN, LTE, WiMax, DVB etc.
Data processing method in the radio communication that the present embodiment provides, by the pilot tone position on the receiver basis OFDM symbol receiving, specified data rotatable sequence, adopt again the repeating part of the data of data rotation sequence to the twice repeated encoding on OFDM symbol to recover rotation processing to obtain valid data, can realize according to the position of mobile pilot tone and farthest reduce PAPR, and then improve the performance of system.
Fig. 7 is the flow chart of the data processing method embodiment eight in radio communication provided by the invention, as shown in Figure 7, data processing method in the radio communication of the present embodiment, recovers rotation processing to receiving terminal in data and describes with other processing before obtaining valid data, comprising:
S701, receiver receive OFDM symbol.
S702, receiver carry out the processing of subcarrier demapping, channel equalization, soft demodulation process and deinterleaving processing to the data of the twice repeated encoding on OFDM symbol.
S703, receiver at least two antenna receptions to signal carry out data and merge and process.
Be understandable that, because BPSK adjusts the corresponding bit of symbol, therefore deinterleaving processing can be before soft demodulation process after channel equalization, also can be before channel equalization after reception antenna merges and process.
S704, receiver are according to the pilot tone position on orthogonal frequency division multiplex OFDM symbol, specified data rotatable sequence.
S705, receiver adopt data rotation sequence to recover rotation to the repetition bits part of deinterleaving data after treatment and process to obtain valid data.
For instance, can adopt data rotation sequence to recover rotation to rear 12 bits of deinterleaving data after treatment and process to obtain valid data.
S706, receiver carry out bit level merging processing to the data of recovering the twice repeated encoding on rotation OFDM symbol after treatment.
The present embodiment for the processing carried out in the time carrying out data receiver for MCS10 mode for the equipment in wireless communication system of scene, the executive agent receiver of the present embodiment can be any one equipment that can receive data in wireless communication system.
Data processing method in the radio communication that the present embodiment provides, by receiver, the data of the twice repeated encoding on the OFDM symbol receiving are carried out to the processing of subcarrier demapping, channel equalization, soft demodulation process and deinterleaving processing, according to the pilot tone position on orthogonal frequency division multiplex OFDM symbol, specified data rotatable sequence, adopt again the repeating part of the data of data rotation sequence to the twice repeated encoding on OFDM symbol to recover rotation processing to obtain valid data, the data of recovering the twice repeated encoding on rotation OFDM symbol after treatment are carried out to bit level merging processing, can realize according to the position of mobile pilot tone and farthest reduce PAPR, and then the performance of raising system.
Fig. 8 is the flow chart of the data processing method embodiment nine in radio communication provided by the invention, as shown in Figure 8, data processing method in the radio communication of the present embodiment and difference embodiment illustrated in fig. 7 are: soft demodulation process occurs in recovers rotation processing with after obtaining valid data to data, comprising:
S801, receiver receive OFDM symbol.
S802, receiver carry out the processing of subcarrier demapping, channel equalization and deinterleaving processing to the data of the twice repeated encoding on OFDM symbol.
S803, receiver at least two antenna receptions to signal carry out data and merge and process.
S804, receiver are according to the pilot tone position on orthogonal frequency division multiplex OFDM symbol, specified data rotatable sequence.
S805, receiver adopt the first data rotation sequence to recover rotation to the repetition modulation symbol part of deinterleaving data after treatment and process to obtain valid data.
For instance, because deinterleaving data after treatment are thought BPSK modulation symbol, process to obtain valid data so can adopt the first data rotation sequence to recover rotation to rear 12 BPSK modulation symbols of deinterleaving data after treatment.
S806, receiver carry out modulation symbol level merging processing to recovering the data of the twice repeated encoding on rotation OFDM symbol after treatment.
Specifically, receiver carries out modulation symbol level and merges to process can obtain compared with bit level merging and process better signal quality recovering the data of the twice repeated encoding of rotation on OFDM symbol after treatment.
S807, receiver merge data after treatment to modulation symbol level and carry out soft demodulation process.
The present embodiment for the processing carried out in the time carrying out data receiver for MCS10 mode for the equipment in wireless communication system of scene, the executive agent receiver of the present embodiment can be any one equipment that can receive data in wireless communication system.
Data processing method in the radio communication that the present embodiment provides, by receiver, the data of the twice repeated encoding on the OFDM symbol receiving are carried out to the processing of subcarrier demapping, channel equalization and deinterleaving processing, according to the pilot tone position on orthogonal frequency division multiplex OFDM symbol, specified data rotatable sequence, adopt again the repeating part of the data of data rotation sequence to the twice repeated encoding on OFDM symbol to recover rotation processing to obtain valid data, carry out modulation symbol level merging processing and soft demodulation process to recovering the data of the twice repeated encoding on rotation OFDM symbol after treatment, can realize according to the position of mobile pilot tone and farthest reduce PAPR, and then the performance of raising system.
Fig. 9 is the flow chart of the data processing method embodiment ten in radio communication provided by the invention, as shown in Figure 9, data processing method in the radio communication of the present embodiment and difference embodiment illustrated in fig. 7 are: soft demodulation process occurs in recovers rotation processing with after obtaining valid data to data, and adopt high specific to merge mode the data of recovering the twice repeated encoding on rotation OFDM symbol after treatment merged, comprising:
S901, receiver receive OFDM symbol.
S902, receiver carry out subcarrier demapping to the data of the twice repeated encoding on OFDM symbol and process reconciliation interleaving treatment.
S903, receiver at least two antenna receptions to signal carry out data and merge and process.
S904, receiver are according to the pilot tone position on orthogonal frequency division multiplex OFDM symbol, specified data rotatable sequence.
S905, receiver adopt the first data rotation sequence to recover rotation to the repetition modulation symbol part of deinterleaving data after treatment and process to obtain valid data.
Specifically, because deinterleaving data after treatment are thought BPSK modulation symbol, process to obtain valid data so can adopt the first data rotation sequence to recover rotation to rear 12 BPSK modulation symbols of deinterleaving data after treatment.
S906, receiver carry out channel equalization and high specific merging processing to recovering the data of the twice repeated encoding on rotation OFDM symbol after treatment.
Specifically, carry out high specific and merge to process can obtain compared with bit level merging and process and modulation symbol level merges the better signal quality of processing recovering the data of the twice repeated encoding of rotation on OFDM symbol after treatment.
S907, receiver merge data after treatment to high specific and carry out soft demodulation process.
The present embodiment for the processing carried out in the time carrying out data receiver for MCS10 mode for the equipment in wireless communication system of scene, the executive agent receiver of the present embodiment can be any one equipment that can receive data in wireless communication system.
Data processing method in the radio communication that the present embodiment provides, by receiver, the data of the twice repeated encoding on the OFDM symbol receiving are carried out to subcarrier demapping and process reconciliation interleaving treatment, according to the pilot tone position on orthogonal frequency division multiplex OFDM symbol, specified data rotatable sequence, adopt again the repeating part of the data of data rotation sequence to the twice repeated encoding on OFDM symbol to recover rotation processing to obtain valid data, the data of recovering the twice repeated encoding on rotation OFDM symbol after treatment are carried out to channel equalization, high specific merges to be processed and soft demodulation process, can realize according to the position of mobile pilot tone and farthest reduce PAPR, and then the performance of raising system.
Data processing method embodiment 11 in radio communication provided by the invention, the data of the twice repeated encoding on OFDM symbol comprise signal domain data and data field data;
Receiver adopts the repeating part of the data of data rotation sequence to the twice repeated encoding on OFDM symbol to recover rotation and processes to obtain valid data, can comprise:
Receiver adopts identical data rotatable sequence to recover rotation to the repeating part in described signal domain data and data field data and processes to obtain valid data, or,
Receiver adopts different pieces of information rotatable sequence respectively the repeating part in described signal domain data and data field data to be recovered to rotation and processes to obtain valid data.
Specifically, for the mobile pilot tone of signal domain, because itself having the bit of part position, signal domain content determines, so the number of times of the modulation symbol of data subcarrier traversal is less than 2e12 in an OFDM symbol, signal domain data and data field data can be used same rotatable sequence or spin matrix, or signal domain data and data field data are used respectively different rotatable sequences or spin matrix.
The present embodiment for the processing carried out in the time carrying out data receiver for MCS10 mode for the equipment in wireless communication system of scene, the executive agent receiver of the present embodiment can be any one equipment that can receive data in wireless communication system.
Data processing method in the radio communication that the present embodiment provides, by the pilot tone position on the receiver basis OFDM symbol receiving, specified data rotatable sequence, can use same rotatable sequence or spin matrix to recover rotation processing to obtain valid data to the signal domain data in the data of the twice repeated encoding on OFDM symbol and data field data, or signal domain data and data field data are used respectively different rotatable sequences or spin matrix to recover rotation and process to obtain valid data, can realize according to the position of mobile pilot tone and farthest reduce PAPR, and then the performance of raising system.
Figure 10 is the flow chart of the data processing method embodiment 12 in radio communication provided by the invention, and as shown in figure 10, the data processing method in the radio communication of the present embodiment, describes the data processing method of transmitter and receiver, comprising:
S1001, transmitter carry out twice repeated encoding to the bit stream of encoder output, obtain the first data.
Pilot tone position on the orthogonal frequency division multiplex OFDM symbol that S1002, transmitter shine upon according to the first data, specified data rotatable sequence.
S1003, transmitter adopt data rotation sequence to be rotated processing to the repetition bits part of the first data.
For instance, for MCS10 mode, can be rotated processing to rear 12 bits of the first data.
S1004, transmitter carry out interleaving treatment, modulation treatment and subcarrier mapping processing to rotating the first data after treatment.
S1005, transmitter shine upon data input channel after treatment by subcarrier and send.
S1006, receiver receive OFDM symbol.
S1007, receiver carry out the processing of subcarrier demapping, channel equalization, soft demodulation process and deinterleaving processing to the data of the twice repeated encoding on OFDM symbol.
S1008, receiver at least two antenna receptions to signal carry out data and merge and process.
Be understandable that, because BPSK adjusts the corresponding bit of symbol, therefore deinterleaving can be before soft demodulation after channel equalization, also can before channel equalization, reception antenna merges after.
S1009, receiver are according to the pilot tone position on orthogonal frequency division multiplex OFDM symbol, specified data rotatable sequence.
S1010, receiver adopt data rotation sequence to recover rotation to the repetition bits part of deinterleaving data after treatment and process to obtain valid data.
For instance, receiver can adopt data rotation sequence to recover rotation to rear 12 bits of deinterleaving data after treatment and process to obtain valid data.
S1011, receiver carry out bit level merging processing to the data of recovering the twice repeated encoding on rotation OFDM symbol after treatment.
It should be noted that, the pilot frequency locations of the handled data of the present embodiment transmitter and receiver is identical, so data rotation sequence corresponding to pilot frequency locations is identical, data rotation sequence be data pilot position corresponding, reduce PAPR effect best sequence, for the sending and receiving of same data, data rotation sequence is consistent.
Data processing method in the radio communication that the present embodiment provides, by transmitter and receiver according to the pilot frequency locations of data, determine that identical data rotation sequence is rotated and processes and recover rotation and process data, data rotation sequence be data pilot position corresponding, reduce PAPR effect best sequence, can realize according to the position of mobile pilot tone and farthest reduce PAPR, and then improve the performance of system.
Figure 11 is the structural representation of the data processing equipment embodiment mono-in radio communication provided by the invention, as shown in figure 11, data processing equipment in the radio communication of the present embodiment, it can be transmitter, comprise: coding module 111, the first determination module 112 and the first processing module 113, wherein, coding module 111, for the bit stream of encoder output is carried out to twice repeated encoding, obtains the first data; The first determination module 112 is for the pilot tone position on the orthogonal frequency division multiplex OFDM symbol shining upon according to the first data, specified data rotatable sequence; The first processing module 113 is for adopting data rotation sequence to be rotated processing to the repeating part of the first data.
Alternatively, the first processing module 113 is specifically for carrying out XOR by the repeating part of bit rotatable sequence and the first data.
Alternatively, the first processing module 113 is also for the pilot tone position on the orthogonal frequency division multiplex OFDM symbol shining upon according to the first data, before specified data rotatable sequence, for each pilot frequency locations, travel through the papr of each data rotation sequence under this pilot frequency locations, determine the data rotation sequence of papr minimum, using this data rotation sequence as the data rotation sequence corresponding with this pilot frequency locations.
The device of the present embodiment, can be for the technical scheme of embodiment of the method shown in execution graph 1, and it realizes principle and technique effect is similar, repeats no more herein.
Figure 12 is the structural representation of the data processing equipment embodiment bis-in radio communication provided by the invention, as shown in figure 12, data processing equipment in the radio communication of the present embodiment, it can be transmitter, on basis embodiment illustrated in fig. 11, also comprise: the second processing module 114, wherein, the first processing module 113 is specifically for adopting data rotation sequence to be rotated processing to the repetition bits part of the first data;
The second processing module 114, for after employing data rotation sequence is rotated processing to the repeating part of the first data, is carried out interleaving treatment, modulation treatment and subcarrier mapping processing to rotating the first data after treatment.
The device of the present embodiment, can be for the technical scheme of embodiment of the method shown in execution graph 2, and it realizes principle and technique effect is similar, repeats no more herein.
Figure 13 is the structural representation of the data processing equipment embodiment tri-in radio communication provided by the invention, as shown in figure 13, data processing equipment in the radio communication of the present embodiment, it can be transmitter, on basis embodiment illustrated in fig. 11, also comprise: the 3rd processing module 115, wherein, the 3rd processing module 115 is for the pilot tone position on the orthogonal frequency division multiplex OFDM symbol shining upon according to the first data, before specified data rotatable sequence, bit stream to encoder output carries out twice repeated encoding, after obtaining the first data, the first data are carried out to interleaving treatment, the first processing module 113 is rotated processing specifically for the repetition bits part of the data after adopting data rotation sequence to interleaving treatment, the 3rd processing module 115 is also for after employing data rotation sequence is rotated processing to the repeating part of the first data, and to rotating, the first data after treatment are carried out modulation treatment and subcarrier mapping is processed.
The device of the present embodiment, can be for the technical scheme of embodiment of the method shown in execution graph 3, and it realizes principle and technique effect is similar, repeats no more herein.
Figure 14 is the structural representation of the data processing equipment embodiment tetra-in radio communication provided by the invention, as shown in figure 14, data processing equipment in the radio communication of the present embodiment, it can be transmitter, on basis embodiment illustrated in fig. 11, also comprise: the 4th processing module 116, wherein, the 4th processing module 116 is for the pilot tone position on the orthogonal frequency division multiplex OFDM symbol shining upon according to the first data, before specified data rotatable sequence, bit stream to encoder output carries out twice repeated encoding, after obtaining the first data, the first data are carried out to interleaving treatment and modulation treatment,
The first processing module 113 specifically for:
Data rotatable sequence is converted and obtains the first data rotation sequence;
The repetition modulation symbol part of the data after adopting the first data rotation sequence to demodulation process is rotated processing;
The 4th processing module 116, also for after employing data rotation sequence is rotated processing to the repeating part of the first data, is carried out subcarrier mapping processing to rotating the first data after treatment.
The device of the present embodiment, can be for the technical scheme of embodiment of the method shown in execution graph 4, and it realizes principle and technique effect is similar, repeats no more herein.
Figure 15 is the structural representation of the data processing equipment embodiment five in radio communication provided by the invention, as shown in figure 15, data processing equipment in the radio communication of the present embodiment, it can be transmitter, on basis embodiment illustrated in fig. 11, also comprise: the 5th processing module 117, wherein, the 5th processing module 117 is for the pilot tone position on the orthogonal frequency division multiplex OFDM symbol shining upon according to the first data, before specified data rotatable sequence, bit stream to encoder output carries out twice repeated encoding, after obtaining the first data, the first data are carried out to interleaving treatment, modulation treatment and subcarrier mapping are processed,
The first processing module 113 specifically for:
Data rotatable sequence is converted and obtains the first data rotation sequence;
Adopt the repetition modulation symbol part that the first data rotation sequence is shone upon data after treatment to subcarrier to be rotated processing.
The device of the present embodiment, can be for the technical scheme of embodiment of the method shown in execution graph 5, and it realizes principle and technique effect is similar, repeats no more herein.
Data processing equipment embodiment six in radio communication provided by the invention, on basis embodiment illustrated in fig. 11, the first data comprise signal domain data and data field data;
The first processing module 113 also for:
Adopt identical data rotatable sequence to be rotated processing to the repeating part in described signal domain data and data field data, or,
Adopt different pieces of information rotatable sequence respectively the repeating part in described signal domain data and data field data to be rotated to processing.Above data processing equipment embodiment mono-to six can be any one equipment that can send data in wireless communication system.
Figure 16 is the structural representation of the data processing equipment embodiment seven in radio communication provided by the invention, as shown in figure 16, data processing equipment in the radio communication of the present embodiment, comprise: receiver module 161, the second determination module 162 and the 6th processing module 163, wherein, receiver module 161 is for receiving OFDM symbol; The second determination module 162 is for according to the pilot tone position on orthogonal frequency division multiplex OFDM symbol, specified data rotatable sequence; The 6th processing module 163 processes to obtain valid data for adopting the repeating part of the data of the first data rotation sequence to the twice repeated encoding on OFDM symbol to recover rotation.
Alternatively, the 6th processing module 163 is specifically for carrying out XOR by the repeating part of the data of the twice repeated encoding on data rotation sequence and OFDM symbol.
Alternatively, the 6th processing module 163 is also for according to the pilot tone position on orthogonal frequency division multiplex OFDM symbol, before specified data rotatable sequence, for each pilot frequency locations, travel through the papr of each data rotation sequence under this pilot frequency locations, determine the data rotation sequence of papr minimum, using this data rotation sequence as the data rotation sequence corresponding with this pilot frequency locations.
The device of the present embodiment, can be for the technical scheme of embodiment of the method shown in execution graph 6, and it realizes principle and technique effect is similar, repeats no more herein.
Figure 17 is the structural representation of the data processing equipment embodiment eight in radio communication provided by the invention, as shown in figure 17, data processing equipment in the radio communication of the present embodiment, on basis embodiment illustrated in fig. 16, also comprise: the 7th processing module 164, wherein, the 7th processing module 164 is for according to the pilot tone position on orthogonal frequency division multiplex OFDM symbol, before specified data rotatable sequence, the data of the twice repeated encoding on OFDM symbol are carried out to the processing of subcarrier demapping, channel equalization, soft demodulation process and deinterleaving processing;
The 6th processing module 163 processes to obtain valid data specifically for adopting data rotation sequence to recover rotation to the repetition bits part of deinterleaving data after treatment;
The 7th processing module 164 is also recovered rotation processing with after obtaining valid data for the repeating part in the data that adopt data rotation sequence to the twice repeated encoding on OFDM symbol, and the data of recovering the twice repeated encoding on rotation OFDM symbol after treatment are carried out to bit level merging processing.
The device of the present embodiment, can be for the technical scheme of embodiment of the method shown in execution graph 7, and it realizes principle and technique effect is similar, repeats no more herein.
Figure 18 is the structural representation of the data processing equipment embodiment nine in radio communication provided by the invention, as shown in figure 18, data processing equipment in the radio communication of the present embodiment, on basis embodiment illustrated in fig. 16, also comprise: the 8th processing module 165, wherein, the 8th processing module 165 is for according to the pilot tone position on orthogonal frequency division multiplex OFDM symbol, before specified data rotatable sequence, the data of the twice repeated encoding on OFDM symbol are carried out to the processing of subcarrier demapping, channel equalization and deinterleaving processing;
The 6th processing module 163 processes to obtain valid data specifically for adopting data rotation sequence to recover rotation to the repetition modulation symbol part of deinterleaving data after treatment;
The 8th processing module 165 also for:
Recover rotation processing with after obtaining valid data at the repeating part of the data that adopt data rotation sequence to the twice repeated encoding on OFDM symbol, the data of the twice repeated encoding on recovery rotation OFDM symbol after treatment are carried out to modulation symbol level and merge processing;
Modulation symbol level is merged to data after treatment and carry out soft demodulation process.
The device of the present embodiment, can be for the technical scheme of embodiment of the method shown in execution graph 8, and it realizes principle and technique effect is similar, repeats no more herein.
Figure 19 is the structural representation of the data processing equipment embodiment ten in radio communication provided by the invention, as shown in figure 19, data processing equipment in the radio communication of the present embodiment, on basis embodiment illustrated in fig. 16, also comprise: the 9th processing module 166, wherein, the 9th processing module 166 is for according to the pilot tone position on orthogonal frequency division multiplex OFDM symbol, before specified data rotatable sequence, the data of the twice repeated encoding on OFDM symbol are carried out to subcarrier demapping and process reconciliation interleaving treatment;
The 6th processing module 163 processes to obtain valid data specifically for adopting data rotation sequence to recover rotation to the repetition modulation symbol part of deinterleaving data after treatment;
The 9th processing module 166 also for:
Recover rotation processing with after obtaining valid data at the repeating part of the data that adopt data rotation sequence to the twice repeated encoding on OFDM symbol, to recovering, the data of the twice repeated encoding on rotation OFDM symbol after treatment are carried out channel equalization and high specific merges processing;
High specific is merged to data after treatment and carry out soft demodulation process.
The device of the present embodiment, can be for the technical scheme of embodiment of the method shown in execution graph 9, and it realizes principle and technique effect is similar, repeats no more herein.
Data processing equipment embodiment ten in radio communication provided by the invention, on basis embodiment illustrated in fig. 16, the 6th processing module 163 also for:
Adopt identical data rotatable sequence to recover rotation to the repeating part in described signal domain data and data field data and process to obtain valid data, or,
Adopt different pieces of information rotatable sequence respectively the repeating part in described signal domain data and data field data to be recovered to rotation and process to obtain valid data.
Alternatively, at Figure 16 on basis embodiment illustrated in fig. 19, if data receiver adopts at least two antenna receiving signals, also comprise the tenth processing module, for after the data of the twice repeated encoding on OFDM symbol are carried out the processing of subcarrier demapping, at least two antenna receptions to signal carry out data and merge and process.
Figure 20 is the structural representation of the data processing equipment embodiment 11 in radio communication provided by the invention, as shown in figure 20, data processing equipment 200 in the radio communication of the present embodiment, can be transmitter, comprise reflector 210, receiver 220, memory 230 and the processor 240 being connected with reflector 210, receiver 220 and memory 230 respectively.Certainly, data processing equipment 200 can also comprise the universal components such as antenna, Base-Band Processing parts, middle radio frequency processing parts, input/output unit, and the embodiment of the present invention is in this no longer any restriction.
Wherein, in memory 230, store batch processing code, and processor 240 is for calling the program code of memory 230 storages, for carrying out following operation:
Bit stream to encoder output carries out twice repeated encoding, obtains the first data;
Pilot tone position on the orthogonal frequency division multiplex OFDM symbol shining upon according to the first data, specified data rotatable sequence;
Adopt data rotation sequence to be rotated processing to the repeating part of the first data.
Data processing equipment 200 in the radio communication of the present embodiment is the equipment sending for data.
Figure 21 is the structural representation of the data processing equipment embodiment 12 in radio communication provided by the invention, as shown in figure 21, data processing equipment 300 in the radio communication of the present embodiment, can be receiver, comprise reflector 310, receiver 320, memory 330 and the processor 340 being connected with reflector 310, receiver 320 and memory 330 respectively.Certainly, the data processing equipment 300 in radio communication can also comprise the universal components such as antenna, Base-Band Processing parts, middle radio frequency processing parts, input/output unit, and the embodiment of the present invention is in this no longer any restriction.
Wherein, in memory 330, store batch processing code, and processor 340 is for calling the program code of memory 230 storages, for carrying out following operation:
Receive OFDM symbol;
According to the pilot tone position on OFDM symbol, specified data rotatable sequence;
Adopt the repeating part of the data of data rotation sequence to the twice repeated encoding on OFDM symbol to recover rotation processing to obtain valid data.
Data processing equipment 300 in the radio communication of the present embodiment is the equipment for data receiver.
Figure 22 is the structural representation of wireless communication system embodiment mono-provided by the invention, the wireless communication system of the present embodiment comprises any one first data processing equipment 400 in data processing equipment embodiment mono-to six, the embodiment 11 in above-mentioned radio communication, and any one second data processing equipment 500 in data processing equipment embodiment seven to ten, embodiment 12 in above-mentioned radio communication, the first data processing equipment 400 is the equipment sending for data, and the second data processing equipment 500 is the equipment for data receiver.
Figure 23 is the structural representation of wireless communication system embodiment bis-provided by the invention, as shown in figure 23, on basis embodiment illustrated in fig. 22, the present embodiment describes the executive agent of various processes in the data processing method in radio communication, the wireless communication system of the present embodiment comprises transmitter 600 and receiver 700, wherein, transmitter 600 comprises: for the bit stream of encoder output being carried out to the repetition twice encoder 610 of twice repeated encoding, for adopting data rotation sequence the repeating part of the first data to be rotated to the data rotation processor 620 of processing, for data being carried out to the interleaver 630 of interleaving treatment, for the subcarrier mapper 650 of data being carried out to the modulator 640 of modulation treatment and processing for data being carried out to subcarrier mapping, transmitter 600 can configuration for executing data processing embodiment mono-to six method, receiver 700 comprises: for the data that receive being carried out to the sub-carrier demapper 710 of subcarrier demapping processing, for to many antenna receptions to signal carry out signal merge process signal combiner 720, for data being carried out to the channel equalizer 730 of channel equalization, for data being carried out to the soft demodulator 740 of soft demodulation process, for the deinterleaver 750 that data are carried out to deinterleaving processing, recovers that data that rotation processes are recovered rotary processor 760 and for data being merged to the data combiner 770 of processing for the repeating part that adopts the data of data rotation sequence to the twice repeated encoding on OFDM symbol, receiver 700 can be for the method for configuration for executing data processing embodiment seven to nine, the system of the present embodiment can configuration for executing data processing embodiment ten method.
Be understandable that, in wireless communication system provided by the invention, can also comprise for send other device of data being processed with DRP data reception process in data, correspondingly, for realize that data send and the transmitter 600 of data receiver and part that receiver 700 comprises in Figure 23, can also comprise other device, do not limit herein, data processing method in radio communication provided by the invention can also be passed through Digital Signal Processing (Digital Signal Processing is called for short DSP) chip and carry out respective code and realize.
One of ordinary skill in the art will appreciate that: all or part of step that realizes above-mentioned each embodiment of the method can complete by the relevant hardware of program command.Aforesaid program can be stored in a computer read/write memory medium.This program, in the time carrying out, is carried out the step that comprises above-mentioned each embodiment of the method; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CDs.
Finally it should be noted that: above each embodiment, only in order to technical scheme of the present invention to be described, is not intended to limit; Although the present invention is had been described in detail with reference to aforementioned each embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or some or all of technical characterictic is wherein equal to replacement; And these amendments or replacement do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.

Claims (33)

1. the data processing method in radio communication, is characterized in that, comprising:
Transmitter carries out twice repeated encoding to the bit stream of encoder output, obtains the first data;
Pilot tone position on the orthogonal frequency division multiplex OFDM symbol that described transmitter shines upon according to described the first data, specified data rotatable sequence;
Described transmitter adopts described data rotation sequence to be rotated processing to the repeating part of described the first data.
2. method according to claim 1, is characterized in that, described transmitter adopts described data rotation sequence to be rotated processing to the repeating part of described the first data, comprising:
The repeating part of bit rotatable sequence and described the first data is carried out XOR by described transmitter.
3. method according to claim 1 and 2, is characterized in that, described transmitter adopts described data rotation sequence to be rotated processing to the repeating part of described the first data, comprising:
Described transmitter adopts described data rotation sequence to be rotated processing to the repetition bits part of described the first data;
Described transmitter adopts after described data rotation sequence is rotated processing to the repeating part of described the first data, also comprises:
Described transmitter carries out interleaving treatment, modulation treatment and subcarrier mapping processing to rotating the first data after treatment.
4. method according to claim 1 and 2, it is characterized in that, pilot tone position on the orthogonal frequency division multiplex OFDM symbol that described transmitter shines upon according to described the first data, before specified data rotatable sequence, described transmitter carries out twice repeated encoding to the bit stream of encoder output, after obtaining the first data, also comprise:
Described transmitter carries out interleaving treatment to described the first data;
Described transmitter adopts described data rotation sequence to be rotated processing to the repeating part of described the first data, comprising:
The repetition bits part of the data after described transmitter adopts described data rotation sequence to interleaving treatment is rotated processing;
Described transmitter adopts after described data rotation sequence is rotated processing to the repeating part of described the first data, also comprises:
Described transmitter carries out modulation treatment and subcarrier mapping processing to rotating the first data after treatment.
5. method according to claim 1 and 2, it is characterized in that, pilot tone position on the orthogonal frequency division multiplex OFDM symbol that described transmitter shines upon according to described the first data, before specified data rotatable sequence, described transmitter carries out twice repeated encoding to the bit stream of encoder output, after obtaining the first data, also comprise:
Described transmitter carries out interleaving treatment and modulation treatment to described the first data;
Described transmitter adopts described data rotation sequence to be rotated processing to the repeating part of described the first data, comprising:
Described transmitter converts and obtains the first data rotation sequence described data rotation sequence;
Described transmitter adopts described the first data rotation sequence to be rotated processing to the repetition modulation symbol part of modulating data after treatment;
Described transmitter adopts after described data rotation sequence is rotated processing to the repeating part of described the first data, also comprises:
Described transmitter carries out subcarrier mapping processing to rotating the first data after treatment.
6. method according to claim 1 and 2, it is characterized in that, pilot tone position on the orthogonal frequency division multiplex OFDM symbol that described transmitter shines upon according to described the first data, before specified data rotatable sequence, described transmitter carries out twice repeated encoding to the bit stream of encoder output, after obtaining the first data, also comprise:
Described transmitter carries out interleaving treatment, modulation treatment and subcarrier mapping to described the first data to be processed;
Described transmitter adopts described data rotation sequence to be rotated processing to the repeating part of described the first data, comprising:
Described transmitter converts and obtains the first data rotation sequence described data rotation sequence;
Described transmitter adopts the repetition modulation symbol part that described the first data rotation sequence is shone upon data after treatment to subcarrier to be rotated processing.
7. according to the method described in claim 1 ~ 6 any one, it is characterized in that, described the first data comprise signal domain data and data field data;
Described transmitter adopts described data rotation sequence to be rotated processing to the repeating part of described the first data, comprising:
Described transmitter adopts identical data rotatable sequence to be rotated processing to the repeating part in described signal domain data and data field data, or,
Described transmitter adopts different pieces of information rotatable sequence respectively the repeating part in described signal domain data and data field data to be rotated to processing.
8. according to the method described in claim 1 ~ 7 any one, it is characterized in that, the pilot tone position on the orthogonal frequency division multiplex OFDM symbol that described transmitter shines upon according to described the first data, before specified data rotatable sequence, also comprises:
Described transmitter is for each pilot frequency locations, travel through the papr of each data rotation sequence under this pilot frequency locations, determine the data rotation sequence of papr minimum, using this data rotation sequence as the data rotation sequence corresponding with this pilot frequency locations.
9. the data processing method in radio communication, is characterized in that, comprising:
Receiver receives orthogonal frequency division multiplex OFDM symbol;
Described receiver is according to the pilot tone position on described OFDM symbol, specified data rotatable sequence;
Described receiver adopts the repeating part of the data of described data rotation sequence to the twice repeated encoding on described OFDM symbol to recover rotation and processes to obtain valid data.
10. method according to claim 9, is characterized in that, described receiver adopts the repeating part of the data of described data rotation sequence to the twice repeated encoding on described OFDM symbol to recover rotation and processes to obtain valid data, comprising:
Described receiver carries out XOR to obtain valid data by the repeating part of the data of the twice repeated encoding on bit rotatable sequence and described OFDM symbol.
11. according to the method described in claim 9 or 10, it is characterized in that, described receiver, according to the pilot tone position on described OFDM symbol, before specified data rotatable sequence, also comprises:
Described receiver carries out the processing of subcarrier demapping, channel equalization, soft demodulation process and deinterleaving processing to the data of the twice repeated encoding on described OFDM symbol;
Described receiver adopts the repeating part of the data of described data rotation sequence to the twice repeated encoding on described OFDM symbol to recover rotation and processes to obtain valid data, comprising:
Described receiver adopts described data rotation sequence to recover rotation to the repetition bits part of deinterleaving data after treatment and processes to obtain valid data;
Described receiver adopts the repeating part of the data of described data rotation sequence to the twice repeated encoding on described OFDM symbol to recover rotation and processes with after obtaining valid data, also comprises:
Described receiver carries out bit level merging processing to the data of recovering the twice repeated encoding on rotation OFDM symbol after treatment.
12. according to the method described in claim 9 or 10, it is characterized in that, described receiver, according to the pilot tone position on described OFDM symbol, before specified data rotatable sequence, also comprises:
Described receiver carries out the processing of subcarrier demapping, channel equalization and deinterleaving processing to the data of the twice repeated encoding on described OFDM symbol;
Described receiver adopts the repeating part of the data of described data rotation sequence to the twice repeated encoding on described OFDM symbol to recover rotation and processes to obtain valid data, comprising:
Described receiver adopts described data rotation sequence to recover rotation to the repetition modulation symbol part of deinterleaving data after treatment and processes to obtain valid data;
Described receiver adopts the repeating part of the data of described data rotation sequence to the twice repeated encoding on described OFDM symbol to recover rotation and processes with after obtaining valid data, also comprises:
Described receiver carries out modulation symbol level merging processing to recovering the data of the twice repeated encoding on rotation OFDM symbol after treatment;
Described receiver merges data after treatment to modulation symbol level and carries out soft demodulation process.
13. according to the method described in claim 9 or 10, it is characterized in that, described receiver, according to the pilot tone position on described OFDM symbol, before specified data rotatable sequence, also comprises:
Described receiver carries out subcarrier demapping to the data of the twice repeated encoding on described OFDM symbol and processes reconciliation interleaving treatment;
Described receiver adopts the repeating part of the data of described data rotation sequence to the twice repeated encoding on described OFDM symbol to recover rotation and processes to obtain valid data, comprising:
Described receiver adopts described data rotation sequence to recover rotation to the repetition modulation symbol part of deinterleaving data after treatment and processes to obtain valid data;
Described receiver adopts the repeating part of the data of described data rotation sequence to the twice repeated encoding on described OFDM symbol to recover rotation and processes with after obtaining valid data, also comprises:
Described receiver carries out channel equalization and high specific merging processing to recovering the data of the twice repeated encoding on rotation OFDM symbol after treatment;
Described receiver merges data after treatment to high specific and carries out soft demodulation process.
14. according to the method described in claim 9 ~ 13 any one, it is characterized in that, the data of the twice repeated encoding on described OFDM symbol comprise signal domain data and data field data;
Described receiver adopts the repeating part of the data of described data rotation sequence to the twice repeated encoding on described OFDM symbol to recover rotation and processes to obtain valid data, comprising:
Described receiver adopts identical data rotatable sequence to recover rotation to the repeating part in described signal domain data and data field data and processes to obtain valid data, or,
Described receiver adopts different pieces of information rotatable sequence respectively the repeating part in described signal domain data and data field data to be recovered to rotation and processes to obtain valid data.
15. according to the method described in claim 11 ~ 14 any one, it is characterized in that, if described receiver adopts at least two antenna receiving signals, after the described data to the twice repeated encoding on described OFDM symbol are carried out the processing of subcarrier demapping, also comprise:
Described receiver to described at least two antenna receptions to signal carry out data merge process.
16. according to the method described in claim 9 ~ 15 any one, it is characterized in that, described receiver, according to the pilot tone position on described OFDM symbol, before specified data rotatable sequence, also comprises:
Described receiver is for each pilot frequency locations, travel through the papr of each data rotation sequence under this pilot frequency locations, determine the data rotation sequence of papr minimum, using this data rotation sequence as the data rotation sequence corresponding with this pilot frequency locations.
Data processing equipment in 17. 1 kinds of radio communications, the data processing equipment in described radio communication is transmitter, it is characterized in that, comprising:
Coding module, for the bit stream of encoder output is carried out to twice repeated encoding, obtains the first data;
The first determination module, for the pilot tone position on the orthogonal frequency division multiplex OFDM symbol shining upon according to described the first data, specified data rotatable sequence;
The first processing module, for adopting described data rotation sequence to be rotated processing to the repeating part of described the first data.
18. devices according to claim 17, is characterized in that, described the first processing module, specifically for carrying out XOR by the repeating part of bit rotatable sequence and described the first data.
19. according to the device described in claim 17 or 18, it is characterized in that, described the first processing module, specifically for adopting described data rotation sequence to be rotated processing to the repetition bits part of described the first data;
Described device, also comprises:
The second processing module, for after the described data rotation sequence of described employing is rotated processing to the repeating part of described the first data, carries out interleaving treatment, modulation treatment and subcarrier mapping processing to rotating the first data after treatment.
20. according to the device described in claim 17 or 18, it is characterized in that, also comprises:
The 3rd processing module, for the pilot tone position on the described orthogonal frequency division multiplex OFDM symbol shining upon according to described the first data, before specified data rotatable sequence, the described bit stream to encoder output carries out twice repeated encoding, after obtaining the first data, described the first data are carried out to interleaving treatment;
Described the first processing module, is rotated processing specifically for the repetition bits part of the data after adopting described data rotation sequence to interleaving treatment;
Described the 3rd processing module, also for after the described data rotation sequence of described employing is rotated processing to the repeating part of described the first data, to rotating, the first data after treatment are carried out modulation treatment and subcarrier mapping is processed.
21. according to the device described in claim 17 or 18, it is characterized in that, also comprises:
The 4th processing module, for the pilot tone position on the described orthogonal frequency division multiplex OFDM symbol shining upon according to described the first data, before specified data rotatable sequence, the described bit stream to encoder output carries out twice repeated encoding, after obtaining the first data, described the first data are carried out to interleaving treatment and modulation treatment;
Described the first processing module, specifically for:
Described data rotation sequence is converted and obtains the first data rotation sequence;
Adopt described the first data rotation sequence to be rotated processing to the repetition modulation symbol part of modulating data after treatment;
Described the 4th processing module, also for after the described data rotation sequence of described employing is rotated processing to the repeating part of described the first data, carries out subcarrier mapping processing to rotating the first data after treatment.
22. according to the device described in claim 17 or 18, it is characterized in that, also comprises:
The 5th processing module, for the pilot tone position on the described orthogonal frequency division multiplex OFDM symbol shining upon according to described the first data, before specified data rotatable sequence, the described bit stream to encoder output carries out twice repeated encoding, after obtaining the first data, described the first data are carried out to interleaving treatment, modulation treatment and subcarrier mapping and process;
Described the first processing module, specifically for:
Described data rotation sequence is converted and obtains the first data rotation sequence;
Adopt the repetition modulation symbol part that described the first data rotation sequence is shone upon data after treatment to subcarrier to be rotated processing.
23. according to the device described in claim 17 ~ 22 any one, it is characterized in that, described the first data comprise signal domain data and data field data;
Described the first processing module, also for:
Adopt identical data rotatable sequence to be rotated processing to the repeating part in described signal domain data and data field data, or,
Adopt different pieces of information rotatable sequence respectively the repeating part in described signal domain data and data field data to be rotated to processing.
24. according to the device described in claim 17 ~ 23 any one, it is characterized in that, described the first processing module, also for the pilot tone position on the described orthogonal frequency division multiplex OFDM symbol shining upon according to described the first data, before specified data rotatable sequence, for each pilot frequency locations, travel through the papr of each data rotation sequence under this pilot frequency locations, determine the data rotation sequence of papr minimum, using this data rotation sequence as the data rotation sequence corresponding with this pilot frequency locations.
Data processing equipment in 25. 1 kinds of radio communications, the data processing equipment in described radio communication is receiver, it is characterized in that, comprising:
Receiver module, for receiving orthogonal frequency division multiplex OFDM symbol;
The second determination module, for according to the pilot tone position on described OFDM symbol, specified data rotatable sequence;
The 6th processing module, processes to obtain valid data for adopting the repeating part of the data of described data rotation sequence to the twice repeated encoding on described OFDM symbol to recover rotation.
26. devices according to claim 25, is characterized in that, described the 6th processing module, specifically for carrying out the repeating part of the data of the twice repeated encoding on bit rotatable sequence and described OFDM symbol XOR to obtain valid data.
27. according to the device described in claim 25 or 26, it is characterized in that, also comprises:
The 7th processing module, be used for described according to the pilot tone position on described OFDM symbol, before specified data rotatable sequence, the data of the twice repeated encoding on described OFDM symbol are carried out to the processing of subcarrier demapping, channel equalization, soft demodulation process and deinterleaving processing;
Described the 6th processing module, processes to obtain valid data specifically for adopting described data rotation sequence to recover rotation to the repetition bits part of deinterleaving data after treatment;
Described the 7th processing module, also recover rotation for the repeating part of the data to the twice repeated encoding on described OFDM symbol in the described data rotation sequence of described employing and process with after obtaining valid data, the data of recovering the twice repeated encoding on rotation OFDM symbol after treatment are carried out to bit level merging processing.
28. according to the device described in claim 25 or 26, it is characterized in that, also comprises:
The 8th processing module, be used for described according to the pilot tone position on described OFDM symbol, before specified data rotatable sequence, the data of the twice repeated encoding on described OFDM symbol are carried out to the processing of subcarrier demapping, channel equalization and deinterleaving processing;
Described the 6th processing module, processes to obtain valid data specifically for adopting described data rotation sequence to recover rotation to the repetition modulation symbol part of deinterleaving data after treatment;
Described the 8th processing module, also for:
The repeating part of the data in the described data rotation sequence of described employing to the twice repeated encoding on described OFDM symbol recovers rotation processing with after obtaining valid data, the data of the twice repeated encoding on recovery rotation OFDM symbol after treatment is carried out to modulation symbol level and merge processing;
Modulation symbol level is merged to data after treatment and carry out soft demodulation process.
29. according to the device described in claim 25 or 26, it is characterized in that, also comprises:
The 9th processing module, for described according to the pilot tone position on described OFDM symbol, before specified data rotatable sequence, to the data of the twice repeated encoding on described OFDM symbol carry out subcarrier demapping process conciliate interleaving treatment;
Described the 6th processing module, processes to obtain valid data specifically for adopting described data rotation sequence to recover rotation to the repetition modulation symbol part of deinterleaving data after treatment;
Described the 9th processing module, also for:
The repeating part of the data in the described data rotation sequence of described employing to the twice repeated encoding on described OFDM symbol recovers rotation processing with after obtaining valid data, and to recovering, the data of the twice repeated encoding on rotation OFDM symbol after treatment are carried out channel equalization and high specific merges processing;
High specific is merged to data after treatment and carry out soft demodulation process.
30. according to the device described in claim 25 ~ 29 any one, it is characterized in that, the data of the twice repeated encoding on described OFDM symbol comprise signal domain data and data field data;
The 6th processing module, also for:
Adopt identical data rotatable sequence to recover rotation to the repeating part in described signal domain data and data field data and process to obtain valid data, or,
Adopt different pieces of information rotatable sequence respectively the repeating part in described signal domain data and data field data to be recovered to rotation and process to obtain valid data.
31. according to the device described in claim 25 ~ 30 any one, it is characterized in that, if adopt at least two antenna receiving signals, described device, also comprises:
The tenth processing module, for after the described data to the twice repeated encoding on described OFDM symbol are carried out the processing of subcarrier demapping, to described at least two antenna receptions to signal carry out data merge process.
32. according to the device described in claim 25 ~ 31 any one, it is characterized in that, described the 6th processing module, also for described according to the pilot tone position on orthogonal frequency division multiplex OFDM symbol, before specified data rotatable sequence, for each pilot frequency locations, travel through the papr of each data rotation sequence under this pilot frequency locations, determine the data rotation sequence of papr minimum, using this data rotation sequence as the data rotation sequence corresponding with this pilot frequency locations.
33. 1 kinds of wireless communication systems, comprise the data processing equipment in the radio communication as described in claim 17 to 24 any one, and data processing equipment in radio communication as described in claim 25 to 32 any one.
CN201310031889.5A 2013-01-28 2013-01-28 Data processing method, device and system in wireless communication Pending CN103973395A (en)

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