CN109561041A - A kind of communication sequence building method, system, equipment and computer storage medium - Google Patents

A kind of communication sequence building method, system, equipment and computer storage medium Download PDF

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Publication number
CN109561041A
CN109561041A CN201811528492.6A CN201811528492A CN109561041A CN 109561041 A CN109561041 A CN 109561041A CN 201811528492 A CN201811528492 A CN 201811528492A CN 109561041 A CN109561041 A CN 109561041A
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sequence
gdj
target
value
initial
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CN109561041B (en
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周正春
杨洋
周亚晶
王勇
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Southwest Jiaotong University
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Southwest Jiaotong University
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2614—Peak power aspects
    • H04L27/2615—Reduction thereof using coding
    • H04L27/2617—Reduction thereof using coding using block codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure

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  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
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  • Mobile Radio Communication Systems (AREA)

Abstract

This application discloses a kind of communication sequence building method, system, equipment and computer storage mediums, are applied to OFDMA system, this method comprises: tectonic sequence length value is the initial GDJ sequence of target length value, target length value is the even number value more than or equal to 4；Initial GDJ sequence is divided into four subsequences；The destination number of the client carried out data transmission is obtained, the numerical value of destination number is less than or equal to 4；The subsequence of continuous destination number is chosen in initial GDJ sequence as target subsequences, distributes each target subsequences to each client；The value of other subsequences except target subsequences in initial GDJ sequence is set to 0, obtains multiplexing GDJ sequence.A kind of communication sequence building method provided by the present application, reduces the PAPR value of OFDMA system.A kind of communication sequence construction system, equipment and computer readable storage medium provided by the present application also solve the problems, such as relevant art.

Description

A kind of communication sequence building method, system, equipment and computer storage medium
Technical field
This application involves fields of communication technology, more specifically to a kind of communication sequence building method, system, equipment And computer storage medium.
Background technique
OFDMA (Orthogonal Frequency Division Multiple Access, orthogonal frequency division multiple access) is The communication technology that OFDM and FDMA technology is combined is to utilize OFDM (Orthogonal Frequency Division Multiplexing, orthogonal frequency division multiplexi) to channel carry out subcarrier after, on portion subcarriers load transmission number According to transmission technology.But OFDM technology asking there are high PAPR (peak-to-average power ratio, peak-to-average force ratio) Topic, and OFDMA technology is that OFDM technology is evolved, and inevitably inherits OFDM technology asking with higher PAPR Topic, the presence of higher PAPR problem, so that the performance inconsistency of OFDMA technology is larger.
In order to reduce the PAPR value of OFDMA technology, a kind of existing method is to reduce OFDMA technology using coding method PAPR value, principle is to generate the smaller code character of PAPR using channel coding to carry out signal transmission, for example use Golay Complementary series avoids the generations etc. of high papr values.
However, Golay complementary series only focuses on the PAPR of whole sequence, and it is not concerned with the PAPR of sub-block, and OFDMA system System requires the sub-block of the sequence equally to possess lower PAPR.
In conclusion the PAPR for how reducing the sub-block of the sequence of OFDMA system be current those skilled in the art urgently It solves the problems, such as.
Summary of the invention
The purpose of the application is to provide a kind of communication sequence building method, can solve how to reduce to a certain extent The technical issues of PAPR of the sub-block of the sequence of OFDMA system.Present invention also provides a kind of communication sequence construction system, set Standby and computer readable storage medium.
To achieve the goals above, the application provides the following technical solutions:
A kind of communication sequence building method is applied to OFDMA system, comprising:
Tectonic sequence length value is the initial GDJ sequence of target length value, and the target length value is more than or equal to 4 Even number value；
The initial GDJ sequence is divided into four subsequences；
The destination number of the client carried out data transmission is obtained, the numerical value of the destination number is less than or equal to 4；
The subsequence of the continuous destination number is chosen in the initial GDJ sequence as target subsequences, Each target subsequences are distributed to each client, so that the client carries out data transmission；
The value of other subsequences except target subsequences described in the initial GDJ sequence is set to 0, is multiplexed GDJ sequence, to be debugged based on the multiplexing GDJ sequence to the OFDMA system.
It is preferably, described that the initial GDJ sequence is divided into four subsequences, comprising:
PSK modulation is carried out to the initial GDJ sequence, obtains modulation GDJ sequence；
The modulation GDJ sequence is divided into four subsequences.
Preferably, the tectonic sequence length value is the initial GDJ sequence of target length value, comprising:
Receive target positive integer value and target even number value；
The initial GDJ sequence is constructed based on the target positive integer value and the target even number value.
It is preferably, described that the initial GDJ sequence is constructed based on the target positive integer value and the target even number value, Include:
It is described initial based on the target positive integer value and target even number value construction using GDJ sequence structure formula GDJ sequence；
Wherein, the GDJ sequence structure formula includes:
Wherein, a indicates the initial GDJ sequence；M indicates the target positive integer value；Q indicates the target even number value； c∈Zq, ck∈Zq；π indicates the displacement of { 1,2 ..., m }.
Preferably, in the GDJ sequence structure formula, π (1)=m, π (2)=m-1 or π (m)=m,π (m-1)=m-1.
Preferably, in the GDJ sequence structure formula, π (1)=m-1, π (2)=m or π (m)=m-1, π (m-1)=m.
Preferably, described that PSK modulation is carried out to the initial GDJ sequence, obtain modulation GDJ sequence, comprising:
Formula is modulated using PSK, PSK modulation is carried out to the initial GDJ sequence, obtains the modulation GDJ sequence；
Wherein, the PSK modulation formula includes:
Wherein, b indicates the modulation GDJ sequence；M indicates the target positive integer value；Q indicates the target even number value； c∈Zq, ck∈Zq；π indicates the displacement of { 1,2 ..., m }.
A kind of communication sequence construction system, is applied to OFDMA system, comprising:
First constructing module, is the initial GDJ sequence of target length value for tectonic sequence length value, and the target is long Angle value is the even number value more than or equal to 4；
First equal sub-module, for the initial GDJ sequence to be divided into four subsequences；
First obtains module, for obtaining the destination number of the client carried out data transmission, the number of the destination number Value is less than or equal to 4；
First chooses module, for choosing the sub- sequence of the continuous destination number in the initial GDJ sequence Column are used as target subsequences, distribute each target subsequences to each client, so that the client is counted According to transmission；
First Multiplexing module, for by other subsequences except target subsequences described in the initial GDJ sequence Value is set to 0, obtains multiplexing GDJ sequence, to be debugged based on the multiplexing GDJ sequence to the OFDMA system.
A kind of communication sequence construction equipment, is applied to OFDMA system, comprising:
Memory, for storing computer program；
Processor realizes any communication sequence building method as above when for executing the computer program Step.
A kind of computer readable storage medium is applied to OFDMA system, stores in the computer readable storage medium There is computer program, as above any communication sequence building method is realized when the computer program is executed by processor The step of.
A kind of communication sequence building method provided by the present application is applied to OFDMA system, comprising: tectonic sequence length value For the initial GDJ sequence of target length value, target length value is the even number value more than or equal to 4；Initial GDJ sequence is divided into Four subsequences；The destination number of the client carried out data transmission is obtained, the numerical value of destination number is less than or equal to 4；Initial The subsequence of continuous destination number is chosen in GDJ sequence as target subsequences, distributes each target subsequences to each visitor Family end, so that client carries out data transmission；The value of other subsequences except target subsequences in initial GDJ sequence is set It is 0, obtains multiplexing GDJ sequence, is debugged based on multiplexing GDJ sequence to OFDMA system.It is provided by the present application a kind of logical Believe sequence constructing method, by the way that initial GDJ sequence is divided into four subsequences, when carrying out data transmission every time, chooses wherein The target subsequences that continuous subsequence uses as client, moreover, by except target subsequences in initial GDJ sequence The value of other subsequences be set to 0 come obtain multiplexing GDJ sequence so that by communication sequence building method provided by the present application into When row ofdma communication, the PAPR value of block is lower.A kind of communication sequence construction system, equipment and calculating provided by the present application Machine readable storage medium storing program for executing also solves the problems, such as relevant art.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, below will to embodiment or Attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only Embodiments herein for those of ordinary skill in the art without creative efforts, can be with Other attached drawings are obtained according to the attached drawing of offer.
Fig. 1 is a kind of first pass figure of communication sequence building method provided by the embodiments of the present application；
Fig. 2 is the structural schematic diagram that a kind of communication sequence provided by the embodiments of the present application constructs system；
Fig. 3 is the structural schematic diagram that a kind of communication sequence provided by the embodiments of the present application constructs equipment；
Fig. 4 is another structural schematic diagram that a kind of communication sequence provided by the embodiments of the present application constructs equipment.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of embodiments of the present application, instead of all the embodiments.It is based on Embodiment in the application, it is obtained by those of ordinary skill in the art without making creative efforts it is all its His embodiment, shall fall in the protection scope of this application.
Referring to Fig. 1, Fig. 1 is a kind of first pass figure of communication sequence building method provided by the embodiments of the present application.
A kind of communication sequence building method provided by the embodiments of the present application is applied to OFDMA system, may include following Step:
Step S101: tectonic sequence length value be target length value initial GDJ sequence, target length value be greater than etc. In 4 even number value.
In practical application, can first tectonic sequence length value be target length value initial GDJ sequence, target length value For the even number value more than or equal to 4.It can be appreciated that in the process, OFDMA system may also need to obtain target length value, specifically , OFDMA system can receive the target length value of extraneous setting.GDJ sequence involved in the application refers to Davis and Jadweb is extended by Paterson based on the binary Golay complementary pair of Construction of Boolean Function, obtained multiphase Golay complementary pair, every sequence in Golay complementary pair is just referred to as Golay-Davis-Jedwab (GDJ) sequence.
In concrete application scene, tectonic sequence length value is that the process of the initial GDJ sequence of target length value can be specific Are as follows: receive target positive integer value and target even number value；Initial GDJ sequence is constructed based on target positive integer value and target even number value.
Specifically, can be with based on the process that target positive integer value and target even number value construct initial GDJ sequence are as follows: use GDJ sequence structure formula constructs initial GDJ sequence based on target positive integer value and target even number value；
Wherein, GDJ sequence structure formula includes:
Wherein, a indicates initial GDJ sequence；M indicates target positive integer value；Q indicates target even number value； c∈Zq, ck∈Zq； π indicates the displacement of { 1,2 ..., m }.
Specifically, in order to further decrease the PAPR of OFDMA system, a kind of communication sequence construction side provided by the present application In the GDJ sequence structure formula of method, π (1)=m π, (2)=m- or π (m)=m,π (m-1)=m-1.
Specifically, in order to further decrease the PAPR of OFDMA system, a kind of communication sequence construction side provided by the present application In the GDJ sequence structure formula of method, π (1)=m-1, π (2)=m or π (m)=m-1, π (m-1)=m.
Step S102: initial GDJ sequence is divided into four subsequences.
In practical application, after having constructed initial GDJ sequence, initial GDJ sequence can be divided into four sub- sequences Column.The equal length of four subsequences is respectively referred to, and since target length value is the even number value more than or equal to 4, so just Beginning GDJ sequence can be divided into four subsequences.
In concrete application scene, initial GDJ sequence can be divided into four subsequences by modulation technique, then will The process that initial GDJ sequence is divided into four subsequences can be with specifically: carries out PSK modulation to initial GDJ sequence, is adjusted GDJ sequence processed；Modulation GDJ sequence is divided into four subsequences.
Specifically, carrying out PSK modulation to initial GDJ sequence, the process for obtaining modulation GDJ sequence can be with specifically: uses PSK modulates formula, carries out PSK modulation to initial GDJ sequence, obtains modulation GDJ sequence；
Wherein, PSK modulation formula includes:
Wherein, b indicates modulation GDJ sequence；M indicates target positive integer value；Q indicates target even number value； c∈Zq, ck∈Zq； π indicates the displacement of { 1,2 ..., m }.
Step S103: obtaining the destination number of the client carried out data transmission, and the numerical value of destination number is less than or equal to 4.
In practical application, after initial GDJ sequence is divided into four subsequences, it can obtain and carry out data transmission Client destination number, it can be appreciated that destination number refers to the client carried out data transmission in a communication process The quantity at end.And since the quantity of subsequence is four, if the value of destination number is greater than 4, just there is client distribution to arrive Subsequence, so the numerical value of destination number need to be less than or equal to 4.
Step S104: the subsequence of continuous destination number is chosen in initial GDJ sequence as target subsequences, is divided With each target subsequences to each client, so that client carries out data transmission.
In practical application, after obtaining destination number, continuous destination number can be chosen in initial GDJ sequence Subsequence as target subsequences, and distribute each target subsequences to each client, in principle, it should according to mesh Mark subsequence and the one-to-one principle of client distribute each target subsequences to each client.With four subsequences Number order be 1,2,3,4 for, the continuous meaning here are as follows: when the value of destination number is 1,1 target of selection Sequence can be for any of 1,2,3,4；When destination number is 2,2 target subsequences of selection can be 1,2, Or 2,3 or 3,4；When destination number is 3,3 target subsequences of selection can be 1,2,3 or 2,3,4；Work as number of targets When amount is 4,4 target subsequences of selection are just 1,2,3,4.
In practical application, each target subsequences are distributed to each client, target of the client based on distribution The process that sequence carries out data transmission is identical as existing OFDMA data transmission procedure, may include following procedure: multiplexing, I.e. client distributes sub-carrier channels by reasonable channel multiplexing mode based on the target subsequences of distribution；Serioparallel exchange, i.e., Serial communication is converted into parallel communications；Frequency-region signal is become time-domain signal against Fast Fourier Transform by IFFT；And it goes here and there Conversion, i.e., be converted into serial communication for parallel communications；It is inserted into cyclic prefix, i.e., before time-domain signal before one section of circulation of addition Sew；Digital signal transition is analog signal by digital to analog conversion；Channel, i.e. signal undergo wireless channel；Analog to digital conversion, i.e., It is digital signal by analog-signal transitions；Remove cyclic prefix, i.e. removal cyclic prefix；Serial to parallel conversion turns serial communication Change parallel communications into；Time-domain signal is become frequency-region signal by FFT, i.e. Fast Fourier Transform；Parallel-serial conversion will lead to parallel Letter is converted into serial communication；Demultiplexing extracts the signal on its corresponding position from the data after OFDM demodulation, can Restore the signal that user is emitted.
Step S105: the value of other subsequences except target subsequences in initial GDJ sequence is set to 0, is multiplexed GDJ sequence, to be debugged based on multiplexing GDJ sequence to OFDMA system.
It, can will be initial after each client to carry out data transmission distributes target subsequences in practical application The value of other subsequences in GDJ sequence except target subsequences is set to 0, obtains multiplexing GDJ sequence, based on multiplexing GDJ sequence Column debug OFDMA system, for example progress channel estimation, OFDMA are synchronized.Serial number with four subsequences is 1,2,3,4, for target subsequences 2,3 subsequences, then in the multiplexing GDJ sequence that obtains, the value of 1,4 subsequences is 0, And the value of 2,3 subsequences remains unchanged.
A kind of communication sequence building method provided by the present application is applied to OFDMA system, comprising: tectonic sequence length value For the initial GDJ sequence of target length value, target length value is the even number value more than or equal to 4；Initial GDJ sequence is divided into Four subsequences；The destination number of the client carried out data transmission is obtained, the numerical value of destination number is less than or equal to 4；Initial The subsequence of continuous destination number is chosen in GDJ sequence as target subsequences, distributes each target subsequences to each visitor Family end, so that client carries out data transmission；The value of other subsequences except target subsequences in initial GDJ sequence is set It is 0, obtains multiplexing GDJ sequence, is debugged based on multiplexing GDJ sequence to OFDMA system.It is provided by the present application a kind of logical Believe sequence constructing method, by the way that initial GDJ sequence is divided into four subsequences, when carrying out data transmission every time, chooses wherein The target subsequences that continuous subsequence uses as client, moreover, by except target subsequences in initial GDJ sequence The value of other subsequences be set to 0 come obtain multiplexing GDJ sequence so that by communication sequence building method provided by the present application into When row ofdma communication, the PAPR value of sub-block is lower.
A kind of communication sequence building method provided by the embodiments of the present application in order to facilitate understanding, is now calculated by theory OFDMA system applies a kind of PAPR value of communication sequence building method provided by the present application.
In the first embodiment, pass through π (1)=m, π (2)=m-1 or π (m)=m, π (m-1)=m-1 GDJ sequence structure Formula construction GDJ sequence is made, process is as follows:
The positive integer m and even number q for obtaining setting, constructing a sequence length is 2mGDJ sequenceIts In,π is the displacement of { 1,2 ..., m },It is the binary form of integer i Up to formula, c ∈ Zq, ck∈Zq, and meet π (1)=m, π (2)=m-1 or π (m)=m,π (m-1)=m-1；
When the quantity of the client carried out data transmission is 1, constructing 4 length is H=2m-2SequenceWherein ξ is single q times Bit root；
When the quantity of the client carried out data transmission is 2, the subsequence that 3 length are 2H is constructed
When the quantity of the client carried out data transmission is 3, the subsequence that 2 length are 3H is constructed
In first embodiment, the whole upper bound such as table 1 with the PAPR of sub-block of the GDJ sequence of calculating, as shown in Table 1, PAPR It is worth smaller and more stable.
Dividing value on the PAPR of 1 first kind GDJ sequence of table
Specifically, m=6 is taken, q=2, ck=c=0, (1≤k≤m), and π (1)=1, π (2)=2, π (3)=3, π (4) =4, π (5)=5, π (6)=6, then for 0≤i≤2m- 1, the GDJ sequence of construction are as follows:
Four subsequences after respectively are as follows:
Assuming that four clients are respectively user 1, user 2, user 3 and user 4, and by a0User 1 is distributed to, by a1Point Provisioned user 2, by a2User 3 is distributed to, by a4Distribute to user 4；
If only user 1 transmits information, by multiplexed GDJ sequence are as follows:
And PAPR (d)=1.8210；
If only user 2 transmits information, by multiplexed GDJ sequence are as follows:
And PAPR (d)=1.8210；
If only user 3 transmits information, by multiplexed GDJ sequence are as follows:
And PAPR (d)=1.8210；
If only user 4 transmits information, by multiplexed GDJ sequence are as follows:
And PAPR (d)=1.8210；
If only user 1 and user 2 transmit information, by multiplexed GDJ sequence are as follows:
And PAPR (d)=2.0000；
If only user 2 and user 3 transmit information, by multiplexed GDJ sequence are as follows:
And PAPR (d)=2.0000；
If only user 3 and user 4 transmit information, by multiplexed GDJ sequence are as follows:
And PAPR (d)=2.0000；
If only user 1, user 2 and user 3 transmit information, by multiplexed GDJ sequence are as follows:
And PAPR (d)=3.1910。
If only user 2, user 3 and user 4 transmit information, by multiplexed GDJ sequence are as follows:
And PAPR (d)=2.9419；
If user 1,4 simultaneous transmission information of user 2, user 3 and user, by multiplexed GDJ sequence are as follows:
And PAPR (d)=1.8210；
The entirety of ψ (a) and the PAPR value of sub-block please refer to table 2, it can be seen that its PAPR value is smaller, and fluctuates smaller.
The entirety of 2 first kind ψ (a) of table and the PAPR value of sub-block
In a second embodiment, pass through π (1)=m-1, π (2)=m or π (m)=m-1, π (m-1)=m GDJ sequence structure Formula construction GDJ sequence is made, process is as follows:
The positive integer m and even number q for obtaining setting, constructing a sequence length is 2mGDJ sequenceIts In,π is the displacement of { 1,2 ..., m },It is the binary form of integer i Up to formula, c ∈ Zq, ck∈Zq, and meet π (1)=m-1, π (2)=m or π (m)=m-1, π (m-1)=m；
When the quantity of the client carried out data transmission is 1, constructing 4 length is H=2m-2SequenceWherein ξ is single q times Bit root；
When the quantity of the client carried out data transmission is 2, the subsequence that 3 length are 2H is constructed
When the quantity of the client carried out data transmission is 3, the subsequence that 2 length are 3H is constructed
In second embodiment, the whole upper bound such as table 3 with the PAPR of sub-block of the GDJ sequence of calculating, as shown in Table 3, PAPR It is worth smaller and more stable.
The whole PAPR value with sub-block of 3 second class GDJ sequence of table
Specifically, m=6 is taken, q=2, ck=c=0, (1≤k≤m), and π (1)=1, π (2)=2, π (3)=3, π (4) =4, π (5)=6, π (6)=5, then for 0≤i≤2m- 1, the GDJ sequence of construction are as follows:
Four subsequences after respectively are as follows:
Assuming that four clients are respectively user 1, user 2, user 3 and user 4, and by a0User 1 is distributed to, by a1Point Provisioned user 2, by a2User 3 is distributed to, by a4Distribute to user 4；
If only user 1 transmits information, by multiplexed GDJ sequence are as follows:
And PAPR (d)=1.8210；
If only user 2 transmits information, by multiplexed GDJ sequence are as follows:
And PAPR (d)=1.8210；
If only user 3 transmits information, by multiplexed GDJ sequence are as follows:
And PAPR (d)=1.8210；
If only user 4 transmits information, by multiplexed GDJ sequence are as follows:
And PAPR (d)=1.8210；
If only user 1 and user 2 transmit information, by multiplexed GDJ sequence are as follows:
And PAPR (d)=3.4142；
If only user 2 and user 3 transmit information, by multiplexed GDJ sequence are as follows:
And PAPR (d)=2.0000；
If only user 3 and user 4 transmit information, by multiplexed GDJ sequence are as follows:
And PAPR (d)=3.6419；
If only user 1, user 2 and user 3 transmit information, by multiplexed GDJ sequence are as follows:
And PAPR (d)=3.1910。
If only user 2, user 3 and user 4 transmit information, by multiplexed GDJ sequence are as follows:
And PAPR (d)=3.2424；
If user 1,4 simultaneous transmission information of user 2, user 3 and user, by multiplexed GDJ sequence are as follows:
And PAPR (d)=1.8210；
The entirety of ψ (a) and the PAPR value of sub-block please refer to table 4, it can be seen that its PAPR value is smaller, and fluctuates smaller.
The entirety of 4 second class ψ (a) of table and the PAPR value of sub-block
Present invention also provides a kind of communication sequences to construct system, with a kind of communication provided by the embodiments of the present application The correspondence effect that sequence constructing method has.Referring to Fig. 2, Fig. 2 is a kind of communication sequence construction provided by the embodiments of the present application The structural schematic diagram of system.
A kind of communication sequence provided by the embodiments of the present application constructs system, is applied to OFDMA system, may include:
First constructing module 101 is the initial GDJ sequence of target length value, target length for tectonic sequence length value Value is the even number value more than or equal to 4；
First equal sub-module 102, for initial GDJ sequence to be divided into four subsequences；
First obtains module 103, for obtaining the destination number of the client carried out data transmission, the number of destination number Value is less than or equal to 4；
First chooses module 104, for choosing the subsequence of continuous destination number as mesh in initial GDJ sequence Subsequence is marked, distributes each target subsequences to each client, so that client carries out data transmission；
First Multiplexing module 105, for setting the value of other subsequences except target subsequences in initial GDJ sequence It is 0, obtains multiplexing GDJ sequence, is debugged based on multiplexing GDJ sequence to OFDMA system.
A kind of communication sequence provided by the embodiments of the present application constructs system, is applied to OFDMA system, the first equal sub-module May include:
First modulation unit obtains modulation GDJ sequence for carrying out PSK modulation to initial GDJ sequence；
First equal sub-unit is divided into four subsequences for that will modulate GDJ sequence.
A kind of communication sequence provided by the embodiments of the present application constructs system, is applied to OFDMA system, the first constructing module May include:
First receiving unit, for receiving target positive integer value and target even number value；
First structural unit, for constructing initial GDJ sequence based on target positive integer value and target even number value.
A kind of communication sequence provided by the embodiments of the present application constructs system, is applied to OFDMA system, the first structural unit May include:
First construction subelement is based on target positive integer value and target even number value for using GDJ sequence structure formula Construct initial GDJ sequence；
Wherein, GDJ sequence structure formula includes:
Wherein, a indicates initial GDJ sequence；M indicates target positive integer value；Q indicates target even number value； c∈Zq, ck∈Zq； π indicates the displacement of { 1,2 ..., m }.
A kind of communication sequence provided by the embodiments of the present application constructs system, is applied to OFDMA system, and GDJ sequence structure is public In formula, π (1)=m, π (2)=m-1 or π (m)=m, π (m-1)=m-1.
A kind of communication sequence provided by the embodiments of the present application constructs system, is applied to OFDMA system, and GDJ sequence structure is public In formula, π (1)=m-1, π (2)=m or π (m)=m-1, π (m-1)=m.
A kind of communication sequence provided by the embodiments of the present application constructs system, is applied to OFDMA system, the first modulation unit, May include:
First modulation subunit carries out PSK modulation to initial GDJ sequence, is modulated for modulating formula using PSK GDJ sequence；
Wherein, PSK modulation formula includes:
Wherein, b indicates modulation GDJ sequence；M indicates target positive integer value；Q indicates target even number value； c∈Zq, ck∈Zq； π indicates the displacement of { 1,2 ..., m }.
Present invention also provides a kind of communication sequence construction equipment and computer readable storage mediums, all have this Shen Please embodiment provide a kind of correspondence effect that communication sequence building method has.Referring to Fig. 3, Fig. 3 is the embodiment of the present application A kind of structural schematic diagram of communication sequence construction equipment provided.
A kind of communication sequence provided by the embodiments of the present application constructs equipment, is applied to OFDMA system, including memory 201 With processor 202, computer program is stored in memory 201, processor 202 executes the computer stored in memory 201 Following steps are realized when program:
Tectonic sequence length value is the initial GDJ sequence of target length value, and target length value is the even number more than or equal to 4 Value；
Initial GDJ sequence is divided into four subsequences；
The destination number of the client carried out data transmission is obtained, the numerical value of destination number is less than or equal to 4；
The subsequence of continuous destination number is chosen in initial GDJ sequence as target subsequences, distributes each target Subsequence is to each client, so that client carries out data transmission；
The value of other subsequences except target subsequences in initial GDJ sequence is set to 0, obtains multiplexing GDJ sequence, To be debugged based on multiplexing GDJ sequence to OFDMA system.
A kind of communication sequence provided by the embodiments of the present application constructs equipment, is applied to OFDMA system, including memory and Processor, computer subprogram is stored in memory, and processor executes specific when the computer subprogram stored in memory It realizes following steps: PSK modulation is carried out to initial GDJ sequence, obtain modulation GDJ sequence；Modulation GDJ sequence is divided into four A subsequence.
A kind of communication sequence provided by the embodiments of the present application constructs equipment, is applied to OFDMA system, including memory and Processor, computer subprogram is stored in memory, and processor executes specific when the computer subprogram stored in memory It realizes following steps: receiving target positive integer value and target even number value；Just based on target positive integer value and target even number value construction Beginning GDJ sequence.
A kind of communication sequence provided by the embodiments of the present application constructs equipment, is applied to OFDMA system, including memory and Processor, computer subprogram is stored in memory, and processor executes specific when the computer subprogram stored in memory It realizes following steps: using GDJ sequence structure formula, initial GDJ sequence is constructed based on target positive integer value and target even number value Column；
Wherein, GDJ sequence structure formula includes:
Wherein, a indicates initial GDJ sequence；M indicates target positive integer value；Q indicates target even number value； c∈Zq, ck∈Zq； π indicates the displacement of { 1,2 ..., m }.
A kind of communication sequence provided by the embodiments of the present application constructs equipment, is applied to OFDMA system, and GDJ sequence structure is public In formula, π (1)=m, π (2)=m-1 or π (m)=m, π (m-1)=m-1.
A kind of communication sequence provided by the embodiments of the present application constructs equipment, is applied to OFDMA system, and GDJ sequence structure is public In formula, π (1)=m-1, π (2)=m or π (m)=m-1, π (m-1)=m.
A kind of communication sequence provided by the embodiments of the present application constructs equipment, is applied to OFDMA system, including memory and Processor, computer subprogram is stored in memory, and processor executes specific when the computer subprogram stored in memory It realizes following steps: formula is modulated using PSK, PSK modulation is carried out to initial GDJ sequence, obtain modulation GDJ sequence；
Wherein, PSK modulation formula includes:
Wherein, b indicates modulation GDJ sequence；M indicates target positive integer value；Q indicates target even number value； c∈Zq, ck∈Zq； π indicates the displacement of { 1,2 ..., m }.
Referring to Fig. 4, can also include: in another kind communication sequence construction equipment provided by the embodiments of the present application and locate The input port 203 that device 202 connects is managed, is used for transmission the extraneous order inputted to processor 202；It is connect with processor 202 Display unit 204, the processing result for video-stream processor 202 is to the external world；The communication module 205 being connect with processor 202, For realizing communication sequence construction equipment and extraneous communication.Display unit 204 can make to show for display panel, laser scanning Show device etc.；Communication mode used by communication module 205 includes but is not limited to mobile high definition chained technology (HML), general string Row bus (USB), high-definition media interface (HDMI), be wirelessly connected: adopting wireless fidelity technology (WiFi), Bluetooth Communication Technology, The low-power consumption bluetooth communication technology, the communication technology based on IEEE802.11s.
A kind of computer readable storage medium provided by the embodiments of the present application is applied to OFDMA system, computer-readable It is stored with computer program in storage medium, following steps are realized when computer program is executed by processor:
Tectonic sequence length value is the initial GDJ sequence of target length value, and target length value is the even number more than or equal to 4 Value；
Initial GDJ sequence is divided into four subsequences；
The destination number of the client carried out data transmission is obtained, the numerical value of destination number is less than or equal to 4；
The subsequence of continuous destination number is chosen in initial GDJ sequence as target subsequences, distributes each target Subsequence is to each client, so that client carries out data transmission；
The value of other subsequences except target subsequences in initial GDJ sequence is set to 0, obtains multiplexing GDJ sequence, To be debugged based on multiplexing GDJ sequence to OFDMA system.
A kind of computer readable storage medium provided by the embodiments of the present application is applied to OFDMA system, computer-readable Computer subprogram is stored in storage medium, computer subprogram is implemented as follows step when being executed by processor: to first Beginning GDJ sequence carries out PSK modulation, obtains modulation GDJ sequence；Modulation GDJ sequence is divided into four subsequences.
A kind of computer readable storage medium provided by the embodiments of the present application is applied to OFDMA system, computer-readable Computer subprogram is stored in storage medium, computer subprogram is implemented as follows step when being executed by processor: receiving Target positive integer value and target even number value；Initial GDJ sequence is constructed based on target positive integer value and target even number value.
A kind of computer readable storage medium provided by the embodiments of the present application is applied to OFDMA system, computer-readable Computer subprogram is stored in storage medium, computer subprogram is implemented as follows step when being executed by processor: using GDJ sequence structure formula constructs initial GDJ sequence based on target positive integer value and target even number value；
Wherein, GDJ sequence structure formula includes:
Wherein, a indicates initial GDJ sequence；M indicates target positive integer value；Q indicates target even number value； c∈Zq, ck∈Zq； π indicates the displacement of { 1,2 ..., m }.
A kind of computer readable storage medium provided by the embodiments of the present application is applied to OFDMA system, GDJ sequence structure In formula, π (1)=m, π (2)=m-1 or π (m)=m, π (m-1)=m-1.
A kind of computer readable storage medium provided by the embodiments of the present application is applied to OFDMA system, GDJ sequence structure In formula, π (1)=m-1, π (2)=m or π (m)=m-1, π (m-1)=m.
A kind of computer readable storage medium provided by the embodiments of the present application is applied to OFDMA system, computer-readable Computer subprogram is stored in storage medium, computer subprogram is implemented as follows step when being executed by processor: using PSK modulates formula, carries out PSK modulation to initial GDJ sequence, obtains modulation GDJ sequence；
Wherein, PSK modulation formula includes:
Wherein, b indicates modulation GDJ sequence；M indicates target positive integer value；Q indicates target even number value； c∈Zq, ck∈Zq； π indicates the displacement of { 1,2 ..., m }.
Computer readable storage medium involved in the application includes random access memory (RAM), memory, read-only memory (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technical field Any other form of storage medium well known to interior.
Phase in a kind of communication sequence construction system provided by the embodiments of the present application, equipment and computer readable storage medium The explanation for closing part refers in a kind of communication sequence building method provided by the embodiments of the present application corresponding part specifically Bright, details are not described herein.In addition, in above-mentioned technical proposal provided by the embodiments of the present application with correspond to technical side in the prior art The consistent part of case realization principle is simultaneously unspecified, in order to avoid excessively repeat.
It should also be noted that, herein, relational terms such as first and second and the like are used merely to one Entity or operation with another entity or operate distinguish, without necessarily requiring or implying these entities or operation it Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning Covering non-exclusive inclusion, so that including that the process, method, article or equipment of a series of elements not only includes Those elements, but also including other elements that are not explicitly listed, or further include for this process, method, article or The intrinsic element of person's equipment.In the absence of more restrictions, the element limited by sentence "including a ...", and It is not excluded in process, method, article or equipment in the process, method, article or apparatus that includes the element that there is also other identical elements.
The foregoing description of the disclosed embodiments makes those skilled in the art can be realized or use the application.To this A variety of modifications of a little embodiments will be apparent for a person skilled in the art, the general principles defined herein It can realize in other embodiments without departing from the spirit or scope of the application.Therefore, the application will not It is intended to be limited to the embodiments shown herein, and is to fit to consistent with the principles and novel features disclosed in this article Widest scope.

Claims (10)

1. a kind of communication sequence building method, which is characterized in that be applied to OFDMA system, comprising:
Tectonic sequence length value is the initial GDJ sequence of target length value, and the target length value is the even number more than or equal to 4 Value；
The initial GDJ sequence is divided into four subsequences；
The destination number of the client carried out data transmission is obtained, the numerical value of the destination number is less than or equal to 4；
The subsequence of the continuous destination number is chosen in the initial GDJ sequence as target subsequences, distribution Each target subsequences are to each client, so that the client carries out data transmission；
The value of other subsequences except target subsequences described in the initial GDJ sequence is set to 0, obtains multiplexing GDJ sequence Column, to be debugged based on the multiplexing GDJ sequence to the OFDMA system.
2. the method according to claim 1, wherein described be divided into four sub- sequences for the initial GDJ sequence Column, comprising:
PSK modulation is carried out to the initial GDJ sequence, obtains modulation GDJ sequence；
The modulation GDJ sequence is divided into four subsequences.
3. according to the method described in claim 2, it is characterized in that, the tectonic sequence length value is the initial of target length value GDJ sequence, comprising:
Receive target positive integer value and target even number value；
The initial GDJ sequence is constructed based on the target positive integer value and the target even number value.
4. according to the method described in claim 3, it is characterized in that, described even based on the target positive integer value and the target Numerical value constructs the initial GDJ sequence, comprising:
Using GDJ sequence structure formula, the initial GDJ sequence is constructed based on the target positive integer value and the target even number value Column；
Wherein, the GDJ sequence structure formula includes:
Wherein, a indicates the initial GDJ sequence；M indicates the target positive integer value；Q indicates the target even number value；c∈Zq, ck∈Zq；π indicates the displacement of { 1,2 ..., m }.
5. according to the method described in claim 4, it is characterized in that, in the GDJ sequence structure formula, π (1)=m, π (2)= M-1 or π (m)=m, π (m-1)=m-1.
6. according to the method described in claim 4, it is characterized in that, in the GDJ sequence structure formula, π (1)=m-1, π (2) =m or π (m)=m-1, π (m-1)=m.
7. according to the described in any item methods of claim 3 to 6, which is characterized in that described to be carried out to the initial GDJ sequence PSK modulation obtains modulation GDJ sequence, comprising:
Formula is modulated using PSK, PSK modulation is carried out to the initial GDJ sequence, obtains the modulation GDJ sequence；
Wherein, the PSK modulation formula includes:
Wherein, b indicates the modulation GDJ sequence；M indicates the target positive integer value；Q indicates the target even number value；c∈Zq, ck∈Zq；π indicates the displacement of { 1,2 ..., m }.
8. a kind of communication sequence constructs system, which is characterized in that be applied to OFDMA system, comprising:
First constructing module, is the initial GDJ sequence of target length value for tectonic sequence length value, and the target length value is Even number value more than or equal to 4；
First equal sub-module, for the initial GDJ sequence to be divided into four subsequences；
First obtains module, and for obtaining the destination number of the client carried out data transmission, the numerical value of the destination number is small In equal to 4；
First chooses module, and the subsequence for choosing the continuous destination number in the initial GDJ sequence makees For target subsequences, each target subsequences are distributed to each client, so that the client carries out data biography It is defeated；
First Multiplexing module, for setting the value of other subsequences except target subsequences described in the initial GDJ sequence It is 0, obtains multiplexing GDJ sequence, is debugged based on the multiplexing GDJ sequence to the OFDMA system.
9. a kind of communication sequence constructs equipment, which is characterized in that be applied to OFDMA system, comprising:
Memory, for storing computer program；
Processor realizes communication sequence construction as described in any one of claim 1 to 7 when for executing the computer program The step of method.
10. a kind of computer readable storage medium, which is characterized in that be applied to OFDMA system, the computer-readable storage medium It is stored with computer program in matter, is realized as described in any one of claim 1 to 7 when the computer program is executed by processor Communication sequence building method the step of.
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