CN109962763A - A kind of transmission method and device, equipment of multi-user data - Google Patents
A kind of transmission method and device, equipment of multi-user data Download PDFInfo
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- CN109962763A CN109962763A CN201711431367.9A CN201711431367A CN109962763A CN 109962763 A CN109962763 A CN 109962763A CN 201711431367 A CN201711431367 A CN 201711431367A CN 109962763 A CN109962763 A CN 109962763A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0037—Inter-user or inter-terminal allocation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
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Abstract
The embodiment of the invention discloses a kind of transmission method of multi-user data and devices, equipment, wherein, the described method includes: every N-bit of data bit to be transmitted is divided into two parts by transmitting terminal, the bit data of first part and the bit data of second part are obtained；The transmitting terminal is by the bit data of the first part by explicit transmission to receiving end, wherein, the treatment process of the explicit transmission includes determining sequence spreading by the bit data of the second part, processing is extended using bit data of the sequence spreading to first part and being sent to receiving end by channel.
Description
Technical field
The present invention relates to the transmission methods and device of wireless communication technique more particularly to a kind of multi-user data, equipment.
Background technique
In a nonopiate multi-user comm, the data transmission flow of each user include channel coding, intertexture,
The processing such as symbol-modulated, extension, resource impact, the data of multiple users are mapped on identical running time-frequency resource and transmit.Existing side
The shortcomings that case is due to the interference in non-orthogonal system between multi-user, and the spectrum efficiency of system is not generally high.
Summary of the invention
In view of this, the embodiment of the present invention be solves the problems, such as it is existing in the prior art at least one and a kind of be mostly used is provided
The transmission method and device of user data, equipment distinguish user by making full use of the orthogonal or low correlation of sequence spreading,
To transmit more user data, and then improve the utilization efficiency of frequency spectrum.
The technical solution of the embodiment of the present invention is achieved in that
The embodiment of the present invention provides a kind of transmission method of multi-user data, which comprises
Every N-bit of data bit to be transmitted is divided into two parts by transmitting terminal, obtains the bit data of first part
With the bit data of second part；
The transmitting terminal is by the bit data of the first part by explicit transmission to receiving end, wherein described explicit
The treatment process of transmission include sequence spreading is determined by the bit data of the second part, using the sequence spreading to
The bit data of a part is extended processing and is sent to receiving end by channel.
The embodiment of the present invention provides a kind of transmission method of multi-user data, which comprises
Receiving end receives the bit data for the first part by explicit transmission that transmitting terminal is sent；Wherein, described explicit
The treatment process of transmission include sequence spreading is determined by the bit data of second part, using the sequence spreading to first
The bit data divided is extended processing and is sent to receiving end by channel；
Sequence spreading used in the bit data by the first part of explicit transmission is detected, obtains second
Partial bit data；
The bit data of the first part by explicit transmission is demodulated, is decoded, the ratio of first part is obtained
Special data；
The bit data of the bit data of the first part and the second part is merged, transmitting terminal hair is obtained
The user data sent.
The embodiment of the present invention provides a kind of transmitting device of multi-user data, and described device includes:
Division unit obtains the ratio of first part for every N-bit of data bit to be transmitted to be divided into two parts
The bit data of special data and second part；
Transmission unit, for the bit data of the first part to be passed through explicit transmission to receiving end, wherein described aobvious
The treatment process of formula transmission includes determining sequence spreading by the bit data of the second part, utilizing the sequence spreading pair
The bit data of first part is extended processing and is sent to receiving end by channel.
The embodiment of the present invention provides a kind of transmitting device of multi-user data, and described device includes:
First receiving unit, the bit data of the first part by explicit transmission for receiving transmitting terminal transmission；Its
In, the treatment process of the explicit transmission includes determining sequence spreading by the bit data of second part, utilizing the extension
Sequence is extended processing to the bit data of first part and is sent to receiving end by channel；
Detection unit, for being carried out to sequence spreading used in the bit data by the first part of explicit transmission
Detection, obtains the bit data of second part；It is solved for the bit data to the first part by explicit transmission
It adjusts, decoding, obtains the bit data of first part；
Combining unit, for closing the bit data of the bit data of the first part and the second part
And obtain the user data of transmitting terminal transmission.
The embodiment of the present invention provides a kind of transmission device of multi-user data, including memory and processor, the storage
Device is stored with the computer program that can be run on a processor, and the processor realizes above-mentioned multi-user when executing described program
Step in the transmission method of data.
The embodiment of the present invention provides a kind of computer readable storage medium, is stored thereon with computer program, the computer
The step in the transmission method of above-mentioned multi-user data is realized when program is executed by processor.
In the embodiment of the present invention, every N-bit of data bit to be transmitted is divided into two parts by transmitting terminal, obtains first
The bit data of partial bit data and second part；The transmitting terminal is by the bit data of the first part by explicit
It is transferred to receiving end, wherein the treatment process of the explicit transmission includes determining to expand by the bit data of the second part
Exhibition sequence is extended processing using bit data of the sequence spreading to first part and is sent to reception by channel
End；In this way, user is distinguished by making full use of the orthogonal or low correlation of sequence spreading, to transmit more numbers of users
According to, and then improve the utilization efficiency of frequency spectrum.
Detailed description of the invention
Fig. 1 is the transmission flow schematic diagram of user data in nonopiate multi-user comm；
Fig. 2 is the network architecture schematic diagram of the embodiment of the present invention；
Fig. 3 is the implementation process schematic diagram of the transmission method of multi-user data of the embodiment of the present invention；
Fig. 4 is the implementation process schematic diagram of the transmission method of the another multi-user data of the embodiment of the present invention；
Fig. 5 A is the implementation process schematic diagram of the transmission method of the another multi-user data of the embodiment of the present invention；
Fig. 5 B is the implementation process schematic diagram of the transmission method of another multi-user data of the embodiment of the present invention；
Fig. 5 C is the implementation process schematic diagram of the transmission method of another multi-user data of the embodiment of the present invention；
Fig. 6 is the composed structure schematic diagram of the transmitting device of multi-user data of the embodiment of the present invention；
Fig. 7 is a kind of hardware entities schematic diagram of the transmission device of multi-user data in the embodiment of the present invention.
Specific embodiment
Illustrate the transmission flow of user data in nonopiate multi-user comm, Fig. 1 by taking up-link as an example below
For the transmission flow schematic diagram of user data in nonopiate multi-user comm, as shown in Figure 1, in a nonopiate multi-user
In communication system, the transmission flow of the data of each user includes channel coding 101, the 102, symbol-modulated 103 that interweaves, extension
104, resource impact 105 etc. is handled, and the data of multiple users are mapped on identical running time-frequency resource and transmit, the differentiation between user
By different interlacing patterns perhaps different sign extended sequence perhaps different power or different reception wave beams etc.
Mode is distinguished；Wherein, sequence spreading is orthogonal or quasi- orthogonal real number or sequence of complex numbers.
The shortcomings that existing scheme is due to the interference in non-orthogonal system between multi-user, and the spectrum efficiency of system is generally not
It is high；For distinguishing the sequence spreading of different user data in existing scheme, do not play one's part to the full.It, will in the present embodiment
It makes full use of the orthogonal or low correlation of sequence spreading to distinguish user, while transmitting more user data.
The technical solution of the present invention is further elaborated with reference to the accompanying drawings and examples.
The present embodiment first provides a kind of network architecture, and Fig. 2 is the composed structure schematic diagram of the network architecture of the embodiment of the present invention,
As shown in Fig. 2, the network architecture includes more than two (including two) terminals 11 to 1n and base station 31, wherein terminal 11 to 1n with
It is interacted between base station 31 by network 21.Terminal can have information processing energy in the process of implementation to be various types of
The equipment of power, such as the terminal may include mobile phone, tablet computer, digital telephone, visual telephone etc..
The present embodiment propose it is a kind of implement multi-user data transmission method, by make full use of the orthogonal of sequence spreading or
Person's low correlation distinguishes user, to transmit more user data, and then improves the utilization efficiency of frequency spectrum.This method is applied to
Transmitting terminal, the function that this method is realized can realize by the processor caller code in transmitting terminal, certain program
Code can be stored in computer storage medium, it is seen then that the terminal includes at least pocessor and storage media.
Fig. 3 is the implementation process schematic diagram of the transmission method of multi-user data of the embodiment of the present invention, as shown in figure 3, the party
Method includes:
Every N-bit of data bit to be transmitted is divided into two parts, obtains first part by step S301, transmitting terminal
The bit data of bit data and second part；
Step S302, the transmitting terminal is by the bit data of the first part by explicit transmission to receiving end, wherein
The treatment process of the explicit transmission includes determining sequence spreading by the bit data of the second part, utilizing the extension
Sequence is extended processing to the bit data of first part and is sent to receiving end by channel.
In other examples, the method also includes: the transmitting terminals passes through the bit data of the first part
After crossing channel coding processing, modulation treatment, sign extended processing, and receiving end is sent to by channel.It is with terminal in this example
Transmitting terminal is illustrated by receiving end of base station, and each terminal in more than two terminals is by the first part
Bit data passes through letter after channel coding processing, interleaving treatment (optional), symbol mapping processing, sign extended processing
Road is sent to base station.It should be noted that be equally applicable to using base station as transmitting terminal, using terminal as receiving end the case where.
In other examples, the method also includes: the transmitting terminal receive that receiving end sends by the reception
Hold the sequence spreading aggregate information of distribution；Alternatively, the transmitting terminal sends the sequence spreading set letter of itself to the receiving end
Breath.Sequence spreading aggregate information includes the mark such as index of sequence spreading set and sequence spreading set, therefore, in the mistake of implementation
Cheng Zhong, can direct transmitting extended arrangement set, can also be with the index of transmitting extended arrangement set.For example, each terminal
Receive the sequence spreading set distributed by the base station that base station is sent；Alternatively, each terminal is sent out to the base station
Give the sequence spreading set of itself.
Be illustrated using terminal as transmitting terminal, by receiving end of base station in this example, be equally applicable to using base station as transmitting terminal,
The case where using terminal as receiving end.Every N-bit is divided into two parts to terminal before sending, and the bit data of first part is by normal
Symbol-modulated process be mapped in some constellation symbol；The data of second part are not modulated into symbol, but pass through sequence generation
Number mode implicit transmission, wherein implicit transmission is also not mapped in constellation symbol, does not also pass through as not by symbol-modulated
Channel is sent to base station, but passes through the mapping relations between the bit data and sequence spreading of second part, by channel
It is middle transmission first part bit data and by the bit data of second part imply be transferred to base station.For example, can establish
Corresponding relationship between the numerical value of the bit data of second part and the mark of sequence spreading, wherein the mark of sequence spreading can be with
It is the title, number, coding etc. of sequence spreading.For example the bit data of second part includes A group data, wherein each group of data
All include L bit, work as L=4, when 4 bits are 0000, terminal (transmitter) selects the 1st sequence spreading, and 4 bits are 1111
When, transmitter selects the 16th sequence spreading.For another example, when 4 bits are 0000, terminal (transmitter) selects the 3rd sequence spreading,
When 4 bits are 0001, terminal (transmitter) selects the 4th sequence spreading, and when 4 bits are 0010, transmitter selects the 5th extension
Sequence, in short, can be come true by establishing the corresponding relationship in second part between each group of bit value and sequence spreading
Surely sequence spreading used when the bit data of first part is transmitted, in this way when the bit data of first part is using channel
After coded treatment, interleaving treatment, symbol mapping processing, the sequence spreading determined using the bit data by second part
Processing is extended to the bit data of first part, modulated data are extended, and by the first part after extension
Data are sent to base station by channel.
In other examples, the bit data of the first part is given by explicit transmission and is received by the transmitting terminal
End, comprising:
Step S11, the transmitting terminal are determined according to the Data expansion mode, modulation system and sequence spreading set got
The number S for the constellation symbol being modulated to；
Step S12, the transmitting terminal determine the bit to the first part according to the bit data of the second part
Data carry out the sequence spreading required when sign extended processing；
Step S13, the transmitting terminal is modulated in S constellation symbol the bit data of the first part, and utilizes
The sequence spreading carries out sign extended processing, and the bit data of the first part after extension is sent to reception by channel
End.
The transmitting terminal is modulated to according to Data expansion mode, modulation system and sequence spreading the set determination got
The number S of constellation symbol, comprising:
Step S111, the transmitting terminal in the sequence spreading set according to used in itself number of sequence spreading determine sequence
The number L of bits of coding=ceil (log2P), wherein P indicates the number of sequence spreading in sequence spreading set, in ceil () expression
It is rounded；
Step S12, the transmitting terminal according to modulation with coding strategy (Modulation and Coding Scheme,
MCS) grade determines modulation system, determines the corresponding number of bits Q of each constellation symbol according to the modulation system；
Wherein, MCS grade can be MCS index value.In general, the configuration of the rate in communication system passes through MCS rope
Draw value realization.MCS forms a Zhang Su using MCS index as row using the factor of influence communication speed of interest as the column of table
Rate table.So each MCS index value has corresponded to the physical transmission rate under one group of parameter in fact.In this Speedometer Drive, also
The mapping relations between MCS index value and modulation system are embodied, each constellation can also be obtained according to modulation system certainly
The corresponding number of bits Q of symbol.
Step S113 determines the number S of the constellation symbol according to formula S * Q+A*L=N, and wherein A indicates Data expansion
Mode, Q indicate the corresponding number of bits of each constellation symbol, and L indicates that the bit number of sequential coding, N indicate data to be transmitted
The sum of bit.
Wherein, the transmitting terminal is determined according to the bit data and data extended mode of the second part to described first
Partial bit data carries out the sequence spreading required when sign extended processing, comprising:
The bit data H of second part is divided into A according to the Data expansion mode A by step S21, the transmitting terminal
Group, wherein A is the integer more than or equal to 1 and less than or equal to S；
Each group of bit data of the A group is mapped as a sequence spreading by step S22, the transmitting terminal.
Wherein, when each group of bit data of the A group is mapped as a sequence spreading by the transmitting terminal, described
The bit number M of a part is equal to S*Q, and the bit number H of the second part is equal to A*L；
If the Data expansion mode is A=1, one group of the bit data is mapped as one according to the transmitting terminal
A sequence spreading, wherein the bit number H of the second part is equal to L, and it is a that the bit number M of first part is equal to (N-L)；
If the Data expansion mode is A=S, the transmitting terminal maps each group of bit data of the S group
For a sequence spreading, S group is mapped as altogether S sequence spreading, wherein and the bit number M of the first part is equal to S*Q,
The bit number H of the second part is equal to S*L.Wherein, S sequence spreading can be different from each other, be also possible to wherein
It is identical that certain is several.
In the embodiment of the present invention, each group of bit data of the A group is mapped as an extension sequence by the transmitting terminal
Column, comprising: the transmitting terminal selects a sequence spreading according to each group in A group of L bit, if the Data expansion side
Formula is A=S, and the corresponding sequence spreading of l group bit is [a1+b1*j,a2+b2*j,..,aT+bT* j], first of constellation symbol is
sl, the data symbol in t-th of resource is sl*(at+bt* j), wherein T is the length of sequence spreading, and l is more than or equal to 1 and small
In the integer for being equal to S, t is the integer more than or equal to 1 and less than or equal to T.
In the embodiment of the present invention, each group of bit data of the A group is mapped as the same extension by the transmitting terminal
Sequence, comprising: the transmitting terminal selects a sequence spreading according to each group in A group of L bit, if the Data expansion
Mode is A=1, and the corresponding sequence spreading of the bit data of second part is [a1+b1*j,a2+b2*j,..,aT+bT* j], first
Constellation symbol is sl, the data symbol in t-th of resource is sl*(at+bt* j), wherein T is the length of sequence spreading, and l is big
In being equal to 1 and the integer less than or equal to S, t is the integer more than or equal to 1 and less than or equal to T.
The present embodiment propose it is a kind of implement multi-user data transmission method, by make full use of the orthogonal of sequence spreading or
Person's low correlation distinguishes user, to transmit more user data, and then improves the utilization efficiency of frequency spectrum.This method is applied to
The Transmission system of the multi-user data of terminal and base station composition, the function that this method is realized can pass through the processor in terminal
Or processor caller code in base station realizes that certain program code can be stored in computer storage medium.
Fig. 4 is the implementation process schematic diagram of the transmission method of further embodiment of this invention multi-user data, as shown in figure 4,
This method comprises:
Step S401 divides every N-bit of data bit to be transmitted more than or equal to each terminal in two terminals
At two parts, the bit data of first part and the bit data of second part are obtained；
Step S402, each terminal is by the bit data of the first part by explicit transmission to base station, wherein
The treatment process of the explicit transmission includes determining sequence spreading by the bit data of the second part, utilizing the extension
Sequence is extended processing to the bit data of first part and is sent to receiving end by channel.
Step S403, base station receive the bit data for the first part by explicit transmission that terminal is sent；
Step S404, base station carry out sequence spreading used in the bit data by the first part of explicit transmission
Detection, obtains the bit data of second part；
Step S405, base station demodulate the bit data of the first part by explicit transmission, are decoded, obtained
The bit data of first part；
The bit data of the bit data of the first part and the second part is closed in step S406, base station
And obtain the data bit of terminal transmission.
From the above, it can be seen that received signal is done as receiving end the operation of opposite direction in base station, each user is detected
The bit information that data symbol represents also detects the letter of bit representated by the number of sequence spreading selected by each user data
Breath, is then merged into user data accordingly.
The present invention proposes that a kind of transmission method of multi-user data, each user data bit to be transmitted are every before sending
N-bit is divided into two parts, wherein the bit data of first part is mapped to some constellation symbol by normal symbol-modulated process
Receiving end is sent on number and by channel；The data of second part are not modulated into symbol, but by way of sequence code name
Implicit transmission, i.e., without transmission.
The packet mode of interactive expanding sequence between transmitting terminal and receiving end: in uplink, transmitting terminal (terminal), which is informed, to be received
Sequence spreading set used in end (base station) oneself；Or base station gives terminal distribution available sequence spreading set；In downlink, hair
Sending end (base station) informs receiving end (terminal) available sequence spreading set.
Second part data have determined sequence spreading used in first part's data, and receiving end passes through known extension sequence
Column set and detection algorithm detect that the sequence spreading that first part's data use obtains second part data information, detect
The corresponding information bit of each symbol is decoded after the sequence spreading that first part's data use, first part's number can be obtained
It is believed that breath.In above scheme, the data transmission stream journey of each user is identical, but different sequence spreading set can be used in each user
To reduce multi-user interference.
It is with multi-user transmission system composed by two terminal UEs 1 and UE2, base station (Base Station, BS) below
Example is illustrated.Fig. 5 A is the implementation process schematic diagram of the transmission method of yet another embodiment of the invention multi-user data, such as Fig. 5 A
It is shown, this method comprises:
UE1 arrangement set is sent to BS by step S501, UE1；
Here, UE1 arrangement set refers to the sequence spreading set of UE1 itself；
UE2 arrangement set is sent to BS by step S502, UE2；
Here, UE2 arrangement set refers to the sequence spreading set of UE2 itself；
Step S503, UE1 carry out data grouping, and the bit number of first part is determined according to the bit data of second part
According to sequence spreading；
Step S504, UE2 carry out data grouping, and the bit number of first part is determined according to the bit data of second part
According to sequence spreading；
Step S505, UE1 send first part's data；
Here, the sequence spreading that UE1 is determined using step S503 is extended the bit data of first part, obtains
First part's data of UE1；It should be noted that before the bit data to first part is extended, it is also necessary to
The bit data of a part carries out the treatment processes such as channel coding, intertexture, symbol mapping.
Step S506, UE2 send first part's data；
Here, the sequence spreading that UE2 is determined using step S503 is extended the bit data of first part, obtains
First part's data of UE2；It should be noted that before the bit data to first part is extended, it is also necessary to
The bit data of a part carries out the treatment processes such as channel coding, intertexture, symbol mapping.
Wherein, step S505 and step S506 is to send first part's data simultaneously, i.e. UE1 and UE2 are to send simultaneously
First part's data.
Step S507, BS detect each user data；
Here, BS receives first part's data that UE1 is sent and first part's data that UE2 is sent, and then BS is to UE1's
First part's data and first part's data of UE2 are detected, and the user data of UE1 and the user data of UE2 are finally obtained.
One embodiment of the present of invention is as shown in Figure 5 B, and transmitter divides original data bits before channel coding
Group, in which: the bit data of first part passes through normal data transmission link, wherein the processing of normal data transmission link
Process includes the treatment processes such as channel coding, intertexture, symbol mapping, sign extended, is finally modulated in S constellation symbol；The
S*L data bit of two parts is divided into A group, every group of L bit, one sequence spreading number of every L bit map.
Can be obtained by the following method with sequence spreading set: in uplink, transmitting terminal (terminal) informs receiving end (base station) certainly
Sequence spreading set used in oneself；Or base station gives terminal distribution available sequence spreading set；In downlink, transmitting terminal (base station)
Inform receiving end (terminal) available sequence spreading set.
According to every L bit inside A group, transmitter selects this L bit correspondence from oneself can be used in sequence spreading set
Sequence spreading number, for example work as L=4, when 4 bits are 0000, transmitter selects the 1st sequence spreading, and 4 bits are 1111
When, transmitter selects the 16th sequence spreading.Assuming that the corresponding sequence spreading of l group bit is [a1+b1*j,a2+b2*j,..,aT
+bT* j], first of constellation symbol is sl, extended operation is slIt is extended on T running time-frequency resource, that is, in t-th of resource
On data symbol be sl*(at+bt*j).In this T resource, while the data of other users are also superimposed, to each user
It is in the same manner.
The sequence spreading that each user being superimposed on receiving end, every T resource uses is detected, and is also known that it
Corresponding information bit, while receiving end is decoded the corresponding information bit of symbol constellation of each user, then two
Partial information bit merges, and obtains original information bit.
In the above-described embodiments, the extended mode employing mode one of user data, it may be assumed that referring to Fig. 5 B, first part's data
Each symbol different sequence spreadings can be used；Transmitting terminal carries out following process according to the Data expansion mode: firstly, according to
The number of sequence spreading determines number L of bits=ceil (log2P) of sequential coding in sequence spreading set used in each user,
Middle P indicates the number of the sequence spreading of each user, is rounded in ceil () expression.Then, transmitting terminal is determined according to MCS grade and is adjusted
Mode processed obtains the corresponding number of bits Q of every modulation symbol, then S*Q=M, i.e., first part's data bit be S*Q, second
The data bit for dividing implicit transmission is S*L, can determine the value of S according to S*Q+S*L=N, and then obtain first part and second
The bit number divided.
Another embodiment of the invention is as shown in Figure 5 C, and transmitter is the data ratio after channel coding, interleaving treatment
Spy is grouped, and first part's M-bit user data is mapped to some symbol by normal symbol mapping process；Second part
L data bit is mapped in the number of sequence spreading, and transmitting terminal is according to the data sequence of this L bit from optional escape character sequence
Some sequence spreading is selected in column set.Then extension process identical with last embodiment is carried out.
The sequence spreading that each user being superimposed on receiving end, every T resource uses is detected, and is also known that it
Corresponding information bit, while receiving end also detected the corresponding bit of symbol constellation of each user, then two
Divide information bit to merge, obtains original information bit with channel decoding process finally by deinterleaving.
In the present embodiment, Data expansion mode employing mode two, it may be assumed that referring to Fig. 5 C, each symbol of first part's data
Use identical sequence spreading.
Unlike last embodiment, in the present embodiment each user per second part data in N number of data bit (i.e.
Implicit transmission) bit number be L, the constellation symbol that M bit of first part's data is mapped to after ovennodulation use it is identical
Sequence spreading (i.e. symbol 1 in Fig. 5 B, symbol 2 ... ..., symbol S use identical sequence spreading).Equally, the value of L can be by
L=ceil (log2P) is obtained, and wherein P indicates the number of the sequence spreading of each user, the tune that transmitting terminal is determined according to MCS grade
Mode processed is modulated remaining M=N-L bit, and determines sequence spreading according to the value of L bit, to first part's data
Symbol after bit modulation is extended.
In the embodiment of the present invention, every N-bit is divided into two parts to each user data bit to be transmitted before sending, and first
Partial bit data is mapped in some constellation symbol by normal symbol-modulated process；The data of second part are not modulated
At symbol, but the implicit transmission by way of the code name of sequence spreading.
In the embodiment of the present invention, in uplink, transmitting terminal (terminal) informs the sequence spreading of receiving end (base station) used in oneself
Set and data extended mode；Or base station is to the available sequence spreading set of terminal distribution and data extended mode；In downlink,
Transmitting terminal (base station) informs receiving end (terminal) available sequence spreading set and data extended mode.
Wherein, workable Data expansion mode and corresponding index number pre-define, such as:
Mode one (00): different sequence spreadings can be used in each symbol of first part's data；
Mode two (01): each symbol of first part's data uses identical sequence spreading；
Mode three (10): ...
Here what is transmitted is the index number of Data expansion mode.
In the embodiment of the present invention, transmitter is grouped original data bits before channel coding, the ratio of first part
Special data pass through normal data transmission link (including the mapping of channel coding, intertexture, symbol, sign extended etc.), are modulated into S
Symbol；S*L data bit of second part is then mapped to one group of (S, repeat) extension in available sequence spreading set
In the number of sequence, that is, one sequence spreading number of every L bit map, transmitting terminal are selected according to the data sequence of L bit
Select some sign extended sequence；
In the embodiment of the present invention, data bit of the transmitter after channel coding, interleaving treatment is grouped, and first
Point M-bit user data is mapped to some symbol by normal symbol mapping process；Second part L data bit is mapped to can
In number with one group of sequence spreading in sequence spreading set, transmitting terminal selects some symbol according to the data sequence of L bit
Sequence spreading.
In the embodiment of the present invention, according to every L bit inside A group, transmitter selects this corresponding sequence spreading of L bit
Number.If the Data expansion mode is A=S, the corresponding sequence spreading of l group bit is [a1+b1*j,a2+b2*j,..,aT
+bT* j], first of constellation symbol is sl, extended operation is slIt is extended on T running time-frequency resource, that is, in t-th of resource
On data symbol be sl*(at+bt*j)。
In the embodiment of the present invention, transmitting terminal selects a sequence spreading according to each group in A group of L bit, if institute
Stating Data expansion mode is A=1, and the corresponding sequence spreading of second part bit data is [a1+b1*j,a2+b2*j,..,aT+bT*
J], first of constellation symbol is sl, the data symbol in t-th of resource is sl*(at+bt* j), wherein T be sequence spreading length
Degree, l are the integer more than or equal to 1 and less than or equal to S, and t is the integer more than or equal to 1 and less than or equal to T.
In the embodiment of the present invention, received signal is done the operation of opposite direction in receiving end, detects each user data symbol
The bit information of representative also detects bit information representated by the number of sequence spreading selected by each user data, then
It is merged into user data accordingly.
Compared with prior art, the present embodiment has the advantage that the present invention overcomes spectrum efficiency in existing scheme is low
The shortcomings that, more data can be transmitted by being not take up additional running time-frequency resource.The present invention can also reduce channel coding and translate
The complexity of code, the data bit of second part do not need the step.
Based on embodiment above-mentioned, the embodiment of the present invention provides a kind of transmitting device of multi-user data, which includes
Each module included by included each unit and each unit can pass through the processing in the transmission device of multi-user data
Device is realized；Certainly it can also be realized by specific logic circuit；In the process of implementation, processor can be central processing unit
(CPU), microprocessor (MPU), digital signal processor (DSP) or field programmable gate array (FPGA) etc..
Fig. 6 is the composed structure schematic diagram of the transmitting device of multi-user data of the embodiment of the present invention, as shown in fig. 6, described
The transmitting device of multi-user data includes first device 600 and second device 610, and the first device 600 includes division unit
601 and transmission unit 602, second device 610 includes the first receiving unit 611, detection unit 612 and combining unit 613,
In:
Division unit 601 obtains first part for every N-bit of data bit to be transmitted to be divided into two parts
Bit data and second part bit data；
Transmission unit 602, for the bit data of the first part to be passed through explicit transmission to receiving end, wherein institute
The treatment process for stating explicit transmission includes determining sequence spreading by the bit data of the second part, utilizing the extension sequence
Column are extended processing to the bit data of first part and are sent to receiving end by channel；
First receiving unit 611, the bit data of the first part by explicit transmission for receiving transmitting terminal transmission；
Wherein, the treatment process of the explicit transmission includes determining sequence spreading by the bit data of second part, utilizing the expansion
Exhibition sequence is extended processing to the bit data of first part and is sent to receiving end by channel；
Detection unit 612, for sequence spreading used in the bit data by the first part of explicit transmission
It is detected, obtains the bit data of second part；For the bit data to the first part by explicit transmission into
Row demodulation, decoding, obtain the bit data of first part；
Combining unit 613, for carrying out the bit data of the bit data of the first part and the second part
Merge, obtains the user data of transmitting terminal transmission.
The description of apparatus above embodiment, be with the description of above method embodiment it is similar, have same embodiment of the method
Similar beneficial effect.For undisclosed technical detail in apparatus of the present invention embodiment, embodiment of the present invention method is please referred to
Description and understand.
It should be noted that in the embodiment of the present invention, if realizing above-mentioned multi-user in the form of software function module
The transmission method of data, and when sold or used as an independent product, it also can store in a computer-readable storage
In medium.Based on this understanding, the technical solution of the embodiment of the present invention substantially in other words contributes to the prior art
Part can be embodied in the form of software products, which is stored in a storage medium, if including
Dry instruction is used so that the transmission device (can be base station or terminal etc.) of a multi-user data executes each implementation of the present invention
The all or part of example the method.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (Read Only
Memory, ROM), the various media that can store program code such as magnetic or disk.In this way, the embodiment of the present invention does not limit
It is combined in any specific hardware and software.
Accordingly, the embodiment of the present invention provides a kind of transmission device of multi-user data, the transmission device include terminal and
Base station, wherein terminal includes memory and processor, and the memory is stored with the computer program that can be run on a processor,
The processor realizes the step in the transmission method of the multi-user data of above-mentioned terminal side when executing described program.
The embodiment of the present invention provides a kind of base station, including memory and processor, and the memory, which is stored with, to be handled
The computer program run on device, the processor realize the transmission of the multi-user data of above-mentioned base station side when executing described program
Step in method.
Accordingly, the embodiment of the present invention provides a kind of computer readable storage medium, is stored thereon with computer program, should
The step in the transmission method of above-mentioned multi-user data is realized when computer program is executed by processor.
It need to be noted that: the description of medium stored above and apparatus embodiments, with retouching for above method embodiment
It is similar for stating, and has with embodiment of the method similar beneficial effect.For in storage medium of the present invention and apparatus embodiments not
The technical detail of disclosure please refers to the description of embodiment of the present invention method and understands.
It should be noted that a kind of hardware entities that Fig. 7 is the transmission device of multi-user data in the embodiment of the present invention are shown
Be intended to, as shown in fig. 7, the hardware entities of the transmission device 700 (base station or terminal) of the multi-user data include: processor 701,
Communication interface 702 and memory 703, wherein
The overall operation of the usually transmission device 700 of control multi-user data of processor 701.
Communication interface 702 can make the transmission device of multi-user data pass through network and other terminals or server communication.
Memory 703 is configured to store the instruction and application that can be performed by processor 701, can also cache device to be processed
701 and multi-user data transmission device 700 in each module it is to be processed or processed data (for example, image data, sound
Frequency evidence, voice communication data and video communication data), flash memory (FLASH) or random access storage device (Random can be passed through
Access Memory, RAM) it realizes.
It should be understood that " one embodiment " or " embodiment " that specification is mentioned in the whole text mean it is related with embodiment
A particular feature, structure, or characteristic is included at least one embodiment of the present invention.Therefore, occur everywhere in the whole instruction
" in one embodiment " or " in one embodiment " not necessarily refer to identical embodiment.In addition, these specific features, knot
Structure or characteristic can combine in any suitable manner in one or more embodiments.It should be understood that in various implementations of the invention
In example, magnitude of the sequence numbers of the above procedures are not meant that the order of the execution order, the execution sequence Ying Yiqi function of each process
It can determine that the implementation process of the embodiments of the invention shall not be constituted with any limitation with internal logic.The embodiments of the present invention
Serial number is for illustration only, does not represent the advantages or disadvantages of the embodiments.
It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that the process, method, article or the device that include a series of elements not only include those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or device institute it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including being somebody's turn to do
There is also other identical elements in the process, method of element, article or device.
In several embodiments provided herein, it should be understood that disclosed device and method can pass through it
Its mode is realized.Apparatus embodiments described above are merely indicative, for example, the division of the unit, only
A kind of logical function partition, there may be another division manner in actual implementation, such as: multiple units or components can combine, or
It is desirably integrated into another system, or some features can be ignored or not executed.In addition, shown or discussed each composition portion
Mutual coupling or direct-coupling or communication connection is divided to can be through some interfaces, the INDIRECT COUPLING of equipment or unit
Or communication connection, it can be electrical, mechanical or other forms.
Above-mentioned unit as illustrated by the separation member, which can be or may not be, to be physically separated, aobvious as unit
The component shown can be or may not be physical unit；Both it can be located in one place, and may be distributed over multiple network lists
In member；Some or all of units can be selected to achieve the purpose of the solution of this embodiment according to the actual needs.
In addition, each functional unit in various embodiments of the present invention can be fully integrated in one processing unit, it can also
To be each unit individually as a unit, can also be integrated in one unit with two or more units；It is above-mentioned
Integrated unit both can take the form of hardware realization, can also realize in the form of hardware adds SFU software functional unit.
Those of ordinary skill in the art will appreciate that: realize that all or part of the steps of above method embodiment can pass through
The relevant hardware of program instruction is completed, and program above-mentioned can store in computer-readable storage medium, which exists
When execution, step including the steps of the foregoing method embodiments is executed；And storage medium above-mentioned includes: movable storage device, read-only deposits
The various media that can store program code such as reservoir (Read Only Memory, ROM), magnetic or disk.
If alternatively, the above-mentioned integrated unit of the present invention is realized in the form of software function module and as independent product
When selling or using, it also can store in a computer readable storage medium.Based on this understanding, the present invention is implemented
Substantially the part that contributes to existing technology can be embodied in the form of software products the technical solution of example in other words,
The computer software product is stored in a storage medium, including transmission of some instructions so that a multi-user data
Equipment executes all or part of each embodiment the method for the present invention.And storage medium above-mentioned includes: that mobile storage is set
The various media that can store program code such as standby, ROM, magnetic or disk.
The above, only embodiments of the present invention, but scope of protection of the present invention is not limited thereto, it is any to be familiar with
Those skilled in the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all cover
Within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (14)
1. a kind of transmission method of multi-user data, which is characterized in that the described method includes:
Every N-bit of data bit to be transmitted is divided into two parts by transmitting terminal, obtains the bit data and of first part
The bit data of two parts；
The transmitting terminal is by the bit data of the first part by explicit transmission to receiving end, wherein the explicit transmission
Treatment process include sequence spreading is determined by the bit data of the second part, using the sequence spreading to first
The bit data divided is extended processing and is sent to receiving end by channel.
2. the method as described in claim 1, which is characterized in that the transmitting terminal passes through the bit data of the first part
Explicit transmission is to receiving end, comprising:
The transmitting terminal determines the constellation being modulated to according to the Data expansion mode, modulation system and sequence spreading set got
The number S of symbol；
The transmitting terminal is determined according to the bit data of the second part carries out symbol to the bit data of the first part
Required sequence spreading when extension process；
The transmitting terminal is modulated in S constellation symbol the bit data of the first part, and utilizes the sequence spreading
Sign extended processing is carried out, and the bit data of the first part after extension is sent to receiving end by channel.
3. method according to claim 2, which is characterized in that the method also includes:
The transmitting terminal is by the bit data of the first part by channel coding processing, modulation treatment, sign extended processing
Afterwards, and by channel it is sent to receiving end.
4. method according to claim 2, which is characterized in that the transmitting terminal according to the bit data of the second part and
Data expansion mode determines the sequence spreading required when the bit data progress sign extended processing to the first part,
Include:
The bit data H of second part is divided into A group according to the Data expansion mode A by the transmitting terminal, wherein A is big
In the integer equal to 1 and less than or equal to S；
Each group of bit data of the A group is mapped as a sequence spreading by the transmitting terminal.
5. method as claimed in claim 4, which is characterized in that the transmitting terminal according to get Data expansion mode, adjust
Mode processed and sequence spreading set determine the number S for the constellation symbol being modulated to, comprising:
The transmitting terminal in the sequence spreading set according to used in itself number of sequence spreading determine the number L of bits of sequential coding
=ceil (log2P), wherein P indicate sequence spreading set in sequence spreading number, ceil () expression on be rounded；
The transmitting terminal determines modulation system with coding strategy grade according to modulation, determines each constellation according to the modulation system
The corresponding number of bits Q of symbol；
The number S of the constellation symbol is determined according to formula S * Q+A*L=N, wherein A indicates Data expansion mode, and Q indicates each
The corresponding number of bits of constellation symbol, L indicate that the bit number of sequential coding, N indicate the sum of data bit to be transmitted.
6. method as claimed in claim 5, which is characterized in that the transmitting terminal is by each group of bit data of the A group
When being mapped as a sequence spreading, the bit number M of the first part is equal to S*Q, and the bit number H of the second part is equal to
A*L；
If the Data expansion mode is A=1, one group of the bit data is mapped as by an expansion according to the transmitting terminal
Open up sequence, wherein the bit number H of the second part is equal to L, and it is a that the bit number M of first part is equal to (N-L)；
If the Data expansion mode is A=S, each group of bit data of the S group is mapped as one by the transmitting terminal
A sequence spreading, wherein S group is mapped as altogether S sequence spreading, and the bit number M of the first part is described equal to S*Q
The bit number H of second part is equal to S*L.
7. method as claimed in claim 6, which is characterized in that the transmitting terminal is by each group of bit data of the A group
It is mapped as a sequence spreading, comprising:
The transmitting terminal selects a sequence spreading according to each group in A group of L bit, if the Data expansion mode is
A=S, the corresponding sequence spreading of l group bit are [a1+b1*j,a2+b2*j,..,aT+bT* j], first of constellation symbol is sl,
Data symbol in t-th of resource is sl*(at+bt* j), wherein T be sequence spreading length, l be more than or equal to 1 and be less than etc.
In the integer of S, t is the integer more than or equal to 1 and less than or equal to T.
8. method as claimed in claim 6, which is characterized in that the transmitting terminal is by each group of bit data of the A group
It is mapped as the same sequence spreading, comprising:
The transmitting terminal selects a sequence spreading according to each group in A group of L bit, if the Data expansion mode is
A=1, the corresponding sequence spreading of the bit data of second part are [a1+b1*j,a2+b2*j,..,aT+bT* j], first of constellation symbol
Number be sl, the data symbol in t-th of resource is sl*(at+bt* j), wherein T is the length of sequence spreading, and l is more than or equal to 1
And it is less than or equal to the integer of S, t is the integer more than or equal to 1 and less than or equal to T.
9. such as method described in any one of claim 1 to 5, which is characterized in that the method also includes:
The transmitting terminal receives the sequence spreading aggregate information distributed by the receiving end that receiving end is sent；Alternatively,
The transmitting terminal sends the sequence spreading aggregate information of itself to the receiving end.
10. a kind of transmission method of multi-user data, which is characterized in that the described method includes:
Receiving end receives the bit data for the first part by explicit transmission that transmitting terminal is sent；Wherein, the explicit transmission
Treatment process include sequence spreading is determined by the bit data of second part, using the sequence spreading to first part
Bit data is extended processing and is sent to receiving end by channel；
Sequence spreading used in the bit data by the first part of explicit transmission is detected, second part is obtained
Bit data；
The bit data of the first part by explicit transmission is demodulated, is decoded, the bit number of first part is obtained
According to；
The bit data of the bit data of the first part and the second part is merged, transmitting terminal transmission is obtained
Data bit.
11. a kind of transmitting device of multi-user data, which is characterized in that described device includes:
Division unit obtains the bit number of first part for every N-bit of data bit to be transmitted to be divided into two parts
According to the bit data with second part；
Transmission unit, for the bit data of the first part to be passed through explicit transmission to receiving end, wherein the explicit biography
Defeated treatment process include sequence spreading is determined by the bit data of the second part, using the sequence spreading to first
Partial bit data is extended processing and is sent to receiving end by channel.
12. a kind of transmitting device of multi-user data, which is characterized in that described device includes:
First receiving unit, the bit data of the first part by explicit transmission for receiving transmitting terminal transmission；Wherein, institute
The treatment process for stating explicit transmission includes determining sequence spreading by the bit data of second part, utilizing the sequence spreading pair
The bit data of first part is extended processing and is sent to receiving end by channel；
Detection unit, for being examined to sequence spreading used in the bit data by the first part of explicit transmission
It surveys, obtains the bit data of second part；Demodulated for the bit data to the first part by explicit transmission,
Decoding, obtains the bit data of first part；
Combining unit is obtained for merging the bit data of the bit data of the first part and the second part
The user data sent to transmitting terminal.
13. a kind of transmission device of multi-user data, including memory and processor, the memory is stored with can be in processor
The computer program of upper operation, which is characterized in that the processor realizes any one of claim 1 to 9 when executing described program
Step in the transmission method of the multi-user data, alternatively, the processor realizes claim 10 when executing described program
Step in the transmission method of the multi-user data.
14. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the computer program quilt
The step in the transmission method of any one of claim 1 to 9 multi-user data is realized when processor executes, alternatively, described
Processor realizes the step in the transmission method of multi-user data described in claim 10 when executing described program.
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