CN106899526A - Signaling method and device, signal acceptance method and device - Google Patents
Signaling method and device, signal acceptance method and device Download PDFInfo
- Publication number
- CN106899526A CN106899526A CN201510921019.4A CN201510921019A CN106899526A CN 106899526 A CN106899526 A CN 106899526A CN 201510921019 A CN201510921019 A CN 201510921019A CN 106899526 A CN106899526 A CN 106899526A
- Authority
- CN
- China
- Prior art keywords
- signal
- transmission
- target
- received
- matrix
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L25/03343—Arrangements at the transmitter end
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0413—MIMO systems
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Mobile Radio Communication Systems (AREA)
- Radio Transmission System (AREA)
Abstract
The invention discloses signaling method and device, signal acceptance method and device, the signaling method, including：The transmission matrix of signal transmission system is obtained, according to target received signal and transmission matrix generation target sending signal, the target sending signal is launched using the transmission antenna.The signal transmit-receive method that the technology of the present invention method is provided need not pass through precoding and the balanced effective transmission that just can realize signal, while the equipment complexity of transmitting terminal and receiving terminal is substantially reduced, can reach message transmission rate very high.
Description
Technical field
The present embodiments relate to the communication technology, more particularly to signaling method and device, receiving side signal
Method and device.
Background technology
With continuing to develop for wireless communication technology, system is carried to information rate and transmission quality these two aspects
Requirement higher is gone out, with the proposition of multi-antenna technology, people can utilize space resources and be communicated.
Wherein, the typical communication system based on multi-antenna technology mainly includes：MISO(Multiple Input
Singles Output, multiple input single output) system, i.e.,：Communication system include many transmission antennas and
A piece reception antenna；SIMO (Singles Input Multiple Output, single input and multi-output) system,
I.e.：Communication system includes a transmission antenna and many reception antennas；And MIMO (Multiple Input
Multiple Output, multiple-input and multiple-output) be：Communication system includes many transmission antennas and many
Reception antenna.
Generally, for the communication system of multi input, in order to the decline for preferably matching wireless channel changes,
Suppress common-channel interference between user, transmitting terminal needs the space that sending signal is adjusted by precoding technique to pass
To improve interference problem, because radio communication channel has been filled with decline, therefore transmitting terminal sends defeated state
Signal distortion (decline of amplitude and phase) can be produced in fading channel, receiving terminal is received by declining
Need to carry out the equilibrium of complexity after the signal for falling, with to anti-fading.
Typical case figure 1 illustrates a kind of wireless communication system of prior art realizes block diagram.Such as Fig. 1 institutes
Show, the signal that transmitting terminal sends is after through the sending signal of the suitable transmitting of ovennodulation generation, in addition it is also necessary to pass through
The decoding apparatus that prelist are pre-processed；Meanwhile, receiving terminal was gone back before receiving sending signal and being demodulated
Need to carry out complicated equilibrium treatment first.Therefore, the transmitting terminal of existing wireless communication system and receiving terminal
Equipment complexity is high, and hardware cost is big.
The content of the invention
The present invention provides a kind of signaling method and device, signal acceptance method and device, existing to optimize
Wireless communication system, reduce the equipment complexity of transmitting terminal and receiving terminal, saved hardware cost.
In a first aspect, a kind of signaling method is the embodiment of the invention provides, including：
Obtain the transmission matrix of signal transmission system；
According to target received signal and transmission matrix generation target sending signal；
Launch the target sending signal using the transmission antenna.
Second aspect, the embodiment of the present invention additionally provides a kind of signal acceptance method, including：
The target sending signal launched by signal transmission system is received by least one reception antenna, wherein,
The target sending signal is generated according to the transmission matrix and target received signal of signal transmission system；
The docking collection of letters number carries out signal demodulation, to recover the target sending signal.
The third aspect, the embodiment of the invention provides a kind of sender unit, be configured at transmitting terminal, including：
Transmission matrix acquisition module, the transmission matrix for obtaining signal transmission system；
Target sending signal generation module, for according to target received signal and transmission matrix generation mesh
Mark sending signal；
Target sending signal sending module, for launching the target sending signal.
Fourth aspect, the embodiment of the present invention additionally provides a kind of signal receiving device, is configured at receiving terminal, bag
Include：
Signal receiving module, for receiving the target sending signal launched by signal transmission system, wherein,
The target sending signal is generated according to the transmission matrix and target received signal of signal transmission system；
Signal demodulation module, signal demodulation is carried out for docking the collection of letters number, and letter is sent to recover the target
Number.
Signaling method and device, signal acceptance method and device that technical scheme is provided, lead to
The transmission matrix that signal transmission system is obtained in transmitting terminal is crossed, according to target received signal and the transmission square
Battle array generation target sending signal, the target sending signal is launched using the transmission antenna, is terminated receiving
The target sending signal launched by signal transmission system is received, the docking collection of letters number carries out signal demodulation, to recover
Go out the technological means of the target sending signal, solve transmitting terminal and the reception of existing wireless communication system
The equipment complexity at end is high, the big technical problem of hardware cost, optimizes existing wireless communication system, drop
Low transmitting terminal and the equipment complexity of receiving terminal, have saved hardware cost.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to implementing
Example or the accompanying drawing to be used needed for description of the prior art are briefly described, it should be apparent that, retouch below
Accompanying drawing in stating is some embodiments of the present invention, for those of ordinary skill in the art, is not being paid
On the premise of creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
A kind of exemplary block diagram of wireless communication system that Fig. 1 is provided for prior art；
Fig. 2 is that a kind of wireless communication system provided in an embodiment of the present invention realizes block diagram；
Fig. 3 is a kind of flow chart of signaling method that the embodiment of the present invention one is provided；
Fig. 4 is a kind of flow chart of signaling method that the embodiment of the present invention two is provided；
Fig. 5 is a kind of flow chart of signal acceptance method that the embodiment of the present invention three is provided；
Fig. 6 is a kind of flow chart of signal acceptance method that the embodiment of the present invention four is provided；
Fig. 7 is a kind of antenna array structure schematic diagram that the embodiment of the present invention five is provided；
Fig. 8 is a kind of structural representation of sender unit that the embodiment of the present invention six is provided；
Fig. 9 is a kind of structural representation of signal receiving device that the embodiment of the present invention seven is provided.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this
The described specific embodiment in place is used only for explaining the present invention, rather than limitation of the invention.Also need in addition
It is noted that for the ease of description, illustrate only part related to the present invention in accompanying drawing and not all knot
Structure.
In order to be easy to explanation hereinafter, inventive concept of the invention is introduced first：
Existing wireless communication system is proposed to reduce influence of the radio communication channel to signal as far as possible
The thought of linear desired transmission channel is constructed according to the actual characteristic of channel, i.e.,：To the reality of communication system
Transmission matrix H carries out SVD (Singular Value Decomposition, singular value decomposition), specially
H=UDV, wherein U are left unitary matrice, and V is right unitary matrice, and D is diagonal matrix.
The relation of the receiving and transmitting signal in wireless communication system can be by equation：Y=Hx is described, wherein, y is
Receipt signal matrix, H is the transmission matrix of channel, and x is sending signal matrix.
Based on above-mentioned SVD decomposition formulas, y=Hx can be split as：Y=UDVx, due to the spy of unitary matrix
Property, it is unit battle array that unitary matrix is multiplied by the conjugate transposition result of itself, therefore, in order that whole transmission all meets line
Property, then, it is necessary to by sending signal premultiplication with the conjugate transposition of V before sending signal is by actual channel
Matrix, accordingly, the signal demand premultiplication that receiving terminal is received is with the associate matrix of U, you can in theory
Realize that by actual channel abbreviation be the diagonal matrix of standard.Wherein, sending signal is multiplied by the conjugate transposition of V
The process of matrix is the process of precoding, and the process for receiving the associate matrix that signal is multiplied by U is
Process in a balanced way.
In this application, the creative proposition of inventor：Without according to the actual characteristic of channel, construction is preferable
Transmission channel model, but directly according to equation：Y=Hx constructs sending signal matrix.I.e.：It is no longer special
Note in transmission matrix H is configured into linear matrix, no matter but consider signal in the channel by which kind of conversion,
The final signal y for wishing that receiving terminal is received actually wants to the signal of transmission for transmitting terminal.Now, above-mentioned formula
In y be transmitting terminal and actually want to the signal that receiving terminal is received, H is the actual transmission of communication system
Matrix, now, if according to above-mentioned non trivial solution construction sending signal matrix x, then receiving terminal in theory
The y for receiving as transmitting terminals actually want to the signal that receiving terminal is received.
Block diagram is realized figure 2 illustrates the wireless communication system conceived based on the present application.That is,
After target sending signal x is constructed by way of the solution for calculating system of linear equations, need not in wireless communication system
Introduce precoding and operate in a balanced way, greatly reduce the equipment complexity of transmitting terminal and receiving terminal.
Embodiment one
Fig. 3 is a kind of flow chart of signaling method that the embodiment of the present invention one is provided, and the present embodiment can be fitted
For the situation of transmitting terminal sending signal, the method can be performed by the signal sending end of wireless communication system,
Specifically include following steps：
Step 110, the transmission matrix for obtaining signal transmission system.
Wireless channel is the transmission medium of signal in wireless communication system, and the characteristic of channel of wireless channel is by passing
Defeated matrix is described.In the present embodiment, the transmission matrix of the signal transmission system specifically refers to actual letter
The transmission matrix in road.
At present, the mode for obtaining channel transfer matrices has a lot, typically, can be by the side of channel estimation
Method obtains the transmission matrix of signal transmission system, and the method for preferred channel estimation mainly has data aided channel
Estimate (Pilot Aided Estimation) and blind Channel Estimation (Blind Estimation) two major classes, wherein,
Data aided channel is estimated to be divided into again：Channel estimation based on pilot tone and based on training sequence.
Step 120, according to target received signal and the transmission matrix generation target sending signal.
Target received signal specifically refers to transmitting terminal and expects the signal matrix that receiving terminal is received, for example, sending
End construction voice sending signal " hello world ", the sending signal is raw after oversampling, quantization, coding
Into data flow " 1001001 ", the data flow can be modulated afterwards, typically, be mapped as constellation
Symbol s1 ..., sn, the constellation symbol after the modulation are transmitting terminal and expect the signal that receiving terminal is received,
Namely target received signal.
As it was previously stated, by solving equation the x in y=Hx, you can generation target sending signal.Wherein, y
It is target received signal, H is transmission matrix.
Wherein it is possible to the mode of software or hardware calculates the solution x in y=Hx, here and it is not limited.
Above-mentioned non trivial solution can for one can also be multiple, if above-mentioned solution of equations is one, can be with
Directly using unique solution as target sending signal；If above-mentioned solution of equations is multiple, can be based on setting
Determine Selection Strategy and a preferred solution is chosen in multiple solutions, the present embodiment is to this and is not limited.
Step 130, the transmission antenna is used to launch the target sending signal.
In the present embodiment, Different Strategies can be as needed taken to launch the target sending signal.Wherein,
In order to improve the diversity gain of system, in the same time, can be by launching identical signal on multiple antennas
Mode launches the target sending signal, in order to improve the spatial multiplexing gain of system, in same time, Ke Yitong
The mode for crossing the transmitting unlike signal on multiple antennas launches the target sending signal.
Technical scheme by transmitting terminal obtain signal transmission system transmission matrix, according to target
Signal and transmission matrix generation target sending signal are received, the mesh is launched using the transmission antenna
The technological means of sending signal is marked, the sending ending equipment complexity for solving existing wireless communication system is high,
The big technical problem of hardware cost, optimizes existing wireless communication system, and the equipment for reducing transmitting terminal is answered
Miscellaneous degree, has saved hardware cost.
Additionally, transmitting terminal can construct sending signal by better simply mode (solution system of linear equations), because
This can reach message transmission rate very high, accordingly, can by select the glossary of symbols of receiving terminal come
Carry out rate-matched.Simultaneously as what all of sending signal was constructed both for specific receiving terminal, change
Sentence is talked about, and sending signal depends on the channel conditions of sending and receiving end, thus non-co-located receiving terminal cannot solution readjust the distribution
The data of sending end, whole communication system has communication security very high.
Embodiment two
Fig. 4 is a kind of flow chart of signaling method that the embodiment of the present invention two is provided, and the present embodiment is with reality
Based on applying example one, the step of to embodiment one 110 and step 120 be all optimized, specifically include as
Lower step：
Step 210, the M roots transmission antenna transmitting pilot signal used respectively in the signal transmission system.
In the present embodiment, in order to determine the transmission matrix of wireless communication system, it is necessary to calculate each receipts respectively
Transmission coefficient h between hair antenna, for example, wireless communication system includes two transmission antennas and one
Reception antenna, then calculative transmission matrix H is [h11, h12], wherein, h11It is first transmission day
Transmission coefficient between line and reception electric wire, h12For second transmission between transmission antenna and reception antenna
Coefficient.
Wherein it is possible to by way of launching pilot signal, calculate the transmission coefficient between dual-mode antenna.Tool
Body, pilot signal is the signal of single-frequency, and the pilot signal shows as a unit impulse on frequency domain
Function, therefore, receiving terminal for pilot signal reception to signal can directly reflect the characteristic of channel, can be with
The transmission coefficient between dual-mode antenna is calculated accordingly.
Step 220, each transmission antenna is launched according to N roots reception antenna in the signal transmission system
The pilot signal reception signal, determine the transmission matrix of the signal transmission system, wherein,
M≥1,N≥1。
Step 230, according to system of linear equations：The solution x of y=Hx, generates the target sending signal, wherein,
Y is target received signal, and H is transmission matrix.
The condition that above equation group has solution is rankH=rank [H y], wherein, rank is represented and is asked order computing.
If rankH=M, equation has unique solution, if rankH ＜ M, equation group has infinite solution.Because
The order of transmission matrix H is not more than the number M of transmission antenna, so equation group must have solution.
If specifically, the order of the transmission matrix<M, the then multiple of the equation group y=Hx that will be calculated
Xie Zhong, peak-to-average force ratio meets the solution of given threshold condition as the target sending signal.
Specifically, when linear equation has multiple solution, multiple solutions can be accepted or rejected according to peak-to-average force ratio, can
To select peak-to-average force ratio less than the solution of certain threshold value as target sending signal, transmit power can be so improved
Utilization rate.Wherein peak-to-average force ratio refers to peak factor, and specific computational methods are the amplitude of waveform divided by virtual value
Income value.
If order=the M of the transmission matrix, the unique solution of the equation group y=Hx being directly calculated is made
It is the target sending signal.
When the order of transmission matrix H is identical with transmission antenna number, system of linear equations has unique solution, then should
Solution can be directly as target sending signal.
Step 240, the transmission antenna is used to launch the target sending signal.
The technical scheme of the present embodiment, can simply, quickly by way of transmitting terminal pilot signal transmitted
Transmission matrix is determined, if the order of transmission matrix<Transmission antenna number M, the then equation group that will be calculated
In multiple solutions of y=Hx, peak-to-average force ratio meets the solution of given threshold condition as the target sending signal, can
To improve the utilization rate of transmit power.
Embodiment three
Fig. 5 is a kind of flow chart of signal acceptance method that the embodiment of the present invention three is provided, and the present embodiment can be fitted
The situation of signal is received for receiving terminal, the method can be held by the signal receiving device of wireless communication system
OK, following steps are specifically included：
Step 310, the target transmission launched by signal transmission system by least one reception antenna reception
Signal, wherein, the target sending signal is believed according to the transmission matrix and intended recipient of signal transmission system
Number generation.
When transmission antenna launches target sending signal, target sending signal is by wireless in signal transmission system
Just can be received by reception antenna after transmission.The wherein for example above-mentioned embodiment one of the target sending signal and real
Apply being generated according to the transmission matrix and target received signal of signal transmission system described in example two.In theory,
For ideal noiseless system, the signal that receiving terminal is received should be the target received signal.
Step 320, the docking collection of letters number carry out signal demodulation, to recover the target received signal.
Preferably, step 320 can include：
Form is sent according to the signal determined by signal sending end and chooses target planisphere；
The reception signal is demodulated using the target planisphere.
The signal that can be determined according to transmitting terminal sends form (typical, the serial to parallel conversion branch of sending signal
Number), choose corresponding target planisphere (for example, 16QAM planispheres or 64QAM planispheres etc.).
Need to consider the influence of noise that receiving terminal is subject in the selection for receiving glossary of symbols, therefore in glossary of symbols
Each symbol needs to meet the limitation of minimum Eustachian distance, and L constellation point, numbering is 1 ..., L, point i
It is d with the distance between point jij, the corresponding vectors of point i are pi, optimal constellation meets following condition：
Wherein P is desired receiving power, and the design of constellation symbol does not consider two above condition singly, while
The complexity for considering to demodulate is needed, therefore can be used for reference at present using more 64QAM planispheres to receiving
Signal is demodulated, and the demodulation of such receiving terminal is judged according only to minimum Eustachian distance.
The technical scheme of the present embodiment is received by least one reception antenna is launched by signal transmission system
Target sending signal, target sending signal according to the transmission matrix and intended recipient of signal transmission system believe
Number generation, docking is collected mail and number carries out signal demodulation, to recover the target received signal.The signal is received
Method needs not move through equilibrium, reduces the complexity of receiving terminal.
Example IV
Fig. 6 is a kind of flow chart of signal acceptance method that the embodiment of the present invention four is provided, and the present embodiment is with reality
Apply and optimize based on example three, specifically include following steps：
Step 410, the target transmission launched by signal transmission system by least one reception antenna reception
Signal, wherein, the target sending signal is believed according to the transmission matrix and intended recipient of signal transmission system
Number generation.
Step 420, algorithm is merged based on setting, the signal to being received on R reception antenna merges
Treatment.
In order to ensure the reliability of the signal that receiving terminal is received, it is typically employed in many transmission antennas and sends identical
Signal then the identical signal for receiving is merged in receiving terminal, this mode be diversity technique.
Wherein, the setting of diversity technique merges algorithm and can include：Maximal ratio combiner algorithm, waits gain to close
And algorithm or selection combination algorithm.
Specifically, Maximal ratio combiner algorithm is mutually sued for peace using weighted network with same, N number of receiving terminal connects
The signal that receipts antenna is received is merged, and weight coefficient determines according to Maximum signal to noise ratio principle.
Weighted network only needs to phase modulation in equal gain combining algorithm, cancels amplitude modulation.
Selection combination algorithm：Receiving terminal includes N number of reception antenna, the maximum output signal of selection signal to noise ratio
Receive.
Specifically, step 420 can include：
According to the merging algorithm chosen and the R reception antenna specified, it is determined that merging matrix G；
According to formula：Complete to merge treatment to the signal received on R reception antenna, its
In, y is the combination of the signal received on R reception antenna.
Wherein, R reception antenna can be selected according to actual needs.It is true according to different merging algorithms
Surely matrix G is merged, specifically, the corresponding matrix G that merges of different merging algorithms is different, according to reality
Border situation is selected.Wherein, maximized diversity gain can be obtained by rationally design receiving matrix G.
Step 430, using the signal after merging treatment as new reception signal；Wherein, 2≤R≤signal
Reception antenna total quantity in Transmission system.
Using the signal after merging as new reception signal, it is demodulated with new reception signal, uses target
Planisphere is demodulated to new reception signal.
Wherein R is the number of the reception antenna merged the need for specifying, and its number should be more than or equal to 2
And less than or equal to the total quantity N of reception antenna.
Step 440, signal demodulation is carried out to new reception signal, to recover the target received signal.
The technical scheme of the present embodiment is received by least one reception antenna is launched by signal transmission system
Target sending signal, and based on setting merge algorithm the signal received on R reception antenna is closed
And process, and signal demodulation is carried out to new reception signal, by diversity transmission and in reception antenna to receiving
To signal merge the reliability that can increase signal transmission.
Embodiment five
The present embodiment is the preferred embodiment that the present invention is provided, specifically, present embodiment illustrates two transmissions
Antenna and two reception antennas, the specific example of signal transmission：
A kind of antenna array structure schematic diagram as shown in Figure 7, wherein transmitting terminal include two transmission antennas,
Receiving terminal includes two reception antennas, and the transmission channel between every transmission antenna and every reception antenna is entered
Row estimation, just can determine the transmission matrix of whole signal transmission system.Wherein h11Represent that first sends day
Transmission coefficient between line and the first reception antenna, h12Represent the first transmission antenna and the second reception antenna it
Between transmission coefficient, h21Represent the transmission coefficient between the second transmission antenna and the first reception antenna, h22Table
Show the transmission coefficient between the second transmission antenna and the second reception antenna, this four transmission coefficients collectively form letter
The transmission matrix of number Transmission system：
The transmission matrix H of signal transmission system is the reception with the transmission antenna and reception signal of sending signal
Antenna is relevant, at the same it is relevant with the spatial character of transmission signal, such as between transmission antenna and reception antenna
Barrier.
When the transmission matrix of signal transmission system is H, target sending signal is x, and target received signal is y
When, constructing system of linear equations with x, y and H is：Y=Hx.The transmission matrix of wherein signal transmission system is：
Target received signal y is specially transmitting terminal and expects the signal that receives of receiving terminal, typically, when having two
During root reception antenna, expect that the target received signal that receiving terminal is received can be any one in following four：
Specifically when selection target received signal isWhen, then when det H ≠ 0, equation group has unique solution.
Wherein, det is represented and is asked a determinant of a matrix computing.
Wherein, x1It is the sending signal of the first transmission antenna, x2It is the sending signal of the second transmission antenna, x1
And x2Constitute target sending signal x.
The target sending signal x that two reception antennas of receiving terminal are launched by signal transmission system, is connect
Receive, and reception signal to receiving carries out signal demodulation, and intended recipient can be recovered in the ideal case
Signal
The technical scheme of the present embodiment, when the total number of transmission antenna is two, the total number of reception antenna
When being two, the transmission matrix of signal transmission system is obtained, according to target received signal and the transmission square
Battle array solves generation target sending signal by way of constructing system of linear equations and solving, and transmitting terminal uses described
Transmission antenna launches the target sending signal, and receiving terminal is received by two reception antennas and passes through signal transmission
The target sending signal of system transmitting, and dock the collection of letters and number carry out signal demodulation, connect with recovering the target
The collection of letters number.The method of the signal transmission just need not can realize signal transmission by precoding and equilibrium, can be with
Message transmission rate very high is reached while the complexity of transmitting terminal and receiving terminal is reduced, is optimized existing
Wireless communication system.
Embodiment six
Fig. 8 is a kind of structural representation of sender unit that the embodiment of the present invention six is provided, and is configured at hair
Sending end, this sender unit 70 is applicable to the situation of transmitting terminal sending signal, specifically includes following mould
Block：
Transmission matrix acquisition module 701, the transmission matrix for obtaining signal transmission system；
Target sending signal generation module 702, for being given birth to according to target received signal and the transmission matrix
Into target sending signal；
Target sending signal sending module 703, letter is sent for launching the target using the transmission antenna
Number.
The technical scheme of the present embodiment provides a kind of sender unit, by the transmission square in dispensing device
Battle array acquisition module obtains the transmission matrix of signal transmission system, and target sending signal generation module connects according to target
The collection of letters number and transmission matrix generation target sending signal, use transmission antenna to launch target sending signal.Should
The sending ending equipment complexity that sender unit solves existing wireless communication system is high, and hardware cost is big
Technical problem, optimize existing wireless communication system, reduce the equipment complexity of transmitting terminal, save
Hardware cost.
Further, on the basis of the various embodiments described above, transmission matrix acquisition module 701 can include：
Pilot signal transmission unit, for using the M root transmission antennas in the signal transmission system respectively
Transmitting pilot signal；
Transmission matrix determining unit, for according to N roots reception antenna in the signal transmission system to each described
The reception signal of the pilot signal of transmission antenna transmitting, determines the transmission matrix of the signal transmission system,
Wherein, M >=1, N >=1.
Further, on the basis of the various embodiments described above, target sending signal generation module 702 can be wrapped
Include：
Target sending signal generation unit, for according to system of linear equations：The solution x of y=Hx, generation is described
Target sending signal, wherein, y is target received signal, and H is transmission matrix.
Further, on the basis of the various embodiments described above, target sending signal generation unit specifically for：
If the order of the transmission matrix<M, then in multiple solutions of the equation group y=Hx that will be calculated, peak
Than meeting the solution of given threshold condition as the target sending signal；
If order=the M of the transmission matrix, the unique solution of the equation group y=Hx being directly calculated is made
It is the target sending signal.
The said goods can perform the signaling method that any embodiment of the present invention is provided, and possess execution signal
The corresponding functional module of sending method and beneficial effect.
Embodiment seven
Fig. 9 is a kind of structural representation of signal receiving device that the embodiment of the present invention seven is provided, and is configured at and connects
Receiving end, this signal receiving device 80 is applicable to the situation that receiving terminal receives signal, specifically includes following mould
Block：
Signal receiving module 801, is sent out for being received by least one reception antenna by signal transmission system
The target sending signal penetrated, wherein, the target sending signal according to the transmission matrix of signal transmission system with
And target received signal generation；
Signal demodulation module 802, signal demodulation is carried out for docking the collection of letters number, is connect with recovering the target
The collection of letters number.
The technical scheme of the present embodiment is received by letter by least one signal receiving module of reception antenna
The target sending signal of number Transmission system transmitting, transmission matrix of the target sending signal according to signal transmission system
And target received signal generation, the signal demodulation module docking collection of letters number carries out signal demodulation, to recover
State target received signal.The signal receiving device needs not move through equilibrium, reduces the complexity of receiving terminal.
Further, on the basis of the various embodiments described above, signal receiving device 80 can also include：
Signal merging module, before the docking collection of letters number carries out signal demodulation, for merging algorithm based on setting,
Signal to being received on R reception antenna merges treatment；
New reception signal generation module, for using the signal after merging treatment as new reception signal；Its
In, reception antenna total quantity in 2≤R≤signal transmission system.
Further, on the basis of the various embodiments described above, setting merges algorithm and includes：Maximal ratio combiner
Algorithm, equal gain combining algorithm or selection combination algorithm；
Signal merging module specifically for：
According to the merging algorithm chosen and the R reception antenna specified, it is determined that merging matrix G；
According to formula：Complete to merge treatment to the signal received on R reception antenna, its
In, y is the combination of the signal received on R reception antenna.
Further, on the basis of the various embodiments described above, signal demodulation module 802 can include：
Target planisphere chooses unit, and sending form by the signal that signal sending end determines for basis chooses mesh
Mark planisphere；
Signal demodulation unit, for being demodulated to the reception signal using the target planisphere.
The said goods can perform the signal acceptance method that any embodiment of the present invention is provided, and possess execution signal
The corresponding functional module of method of reseptance and beneficial effect.
Note, above are only presently preferred embodiments of the present invention and institute's application technology principle.Those skilled in the art
It will be appreciated that the invention is not restricted to specific embodiment described here, can enter for a person skilled in the art
The various obvious changes of row, readjust and substitute without departing from protection scope of the present invention.Therefore, though
The present invention is described in further detail by above example so, but the present invention be not limited only to
Upper embodiment, without departing from the inventive concept, can also include more other Equivalent embodiments,
And the scope of the present invention is determined by scope of the appended claims.
Claims (16)
1. a kind of signaling method, it is characterised in that including：
Obtain the transmission matrix of signal transmission system；
According to target received signal and transmission matrix generation target sending signal；
Launch the target sending signal.
2. method according to claim 1, it is characterised in that the acquisition signal transmission system
Transmission matrix includes：
Launch pilot signal using the M roots transmission antenna in the signal transmission system respectively；
According to N roots reception antenna in the signal transmission system to being led described in each transmission antenna transmitting
The reception signal of frequency signal, determines the transmission matrix of the signal transmission system, wherein, M >=1, N >=1.
3. method according to claim 2, it is characterised in that it is described according to target received signal with
And the transmission matrix generation target sending signal includes：
According to system of linear equations：The solution x of y=Hx, generates the target sending signal, wherein, y is target
Signal is received, H is transmission matrix.
4. method according to claim 3, it is characterised in that according to system of linear equations：Y=Hx's
Solution x, generates the target sending signal and specifically includes：
If the order of the transmission matrix<M, then in multiple solutions of the equation group y=Hx that will be calculated, peak
Than meeting the solution of given threshold condition as the target sending signal；
If order=the M of the transmission matrix, the unique solution of the equation group y=Hx being directly calculated is made
It is the target sending signal.
5. a kind of signal acceptance method, it is characterised in that including：
The target sending signal launched by signal transmission system is received, wherein, the target sending signal root
Generated according to the transmission matrix and target received signal of signal transmission system；
The docking collection of letters number carries out signal demodulation, to recover the target received signal.
6. method according to claim 5, it is characterised in that docking is collected mail and number carries out signal demodulation
Before, also include：
Algorithm is merged based on setting, the signal to being received on R reception antenna merges treatment；
Using the signal after merging treatment as new reception signal；Wherein, 2≤R≤signal transmission system
Middle reception antenna total quantity.
7. method according to claim 6, it is characterised in that the setting merges algorithm and includes：
Maximal ratio combiner algorithm, equal gain combining algorithm or selection combination algorithm；
Algorithm is merged based on setting, it is specific that the signal to being received on the reception antenna of R merges treatment
Including：
According to the merging algorithm chosen and the R reception antenna specified, it is determined that merging matrix G；
According to formula：Complete to merge treatment to the signal received on R reception antenna, its
In, y is the combination of the signal received on R reception antenna.
8. method according to claim 5, it is characterised in that docking is collected mail and number carries out signal demodulation,
Included with recovering the target sending signal：
Form is sent according to the signal determined by signal sending end and chooses target planisphere；
The reception signal is demodulated using the target planisphere.
9. a kind of sender unit, is configured at transmitting terminal, it is characterised in that including：
Transmission matrix acquisition module, the transmission matrix for obtaining signal transmission system；
Target sending signal generation module, for according to target received signal and transmission matrix generation mesh
Mark sending signal；
Target sending signal sending module, for launching the target sending signal.
10. device according to claim 9, it is characterised in that transmission matrix acquisition module includes：
Pilot signal transmission unit, for using the M root transmission antennas in the signal transmission system respectively
Transmitting pilot signal；
Transmission matrix determining unit, for according to N roots reception antenna in the signal transmission system to each described
The reception signal of the pilot signal of transmission antenna transmitting, determines the transmission matrix of the signal transmission system,
Wherein, M >=1, N >=1.
11. devices according to claim 10, it is characterised in that target sending signal generation module
Including：
Target sending signal generation unit, for according to system of linear equations：The solution x of y=Hx, generation is described
Target sending signal, wherein, y is target received signal, and H is transmission matrix.
12. devices according to claim 11, it is characterised in that target sending signal generation unit
Specifically for：
If the order of the transmission matrix<M, then in multiple solutions of the equation group y=Hx that will be calculated, peak
Than meeting the solution of given threshold condition as the target sending signal；
If order=the M of the transmission matrix, the unique solution of the equation group y=Hx being directly calculated is made
It is the target sending signal.
A kind of 13. signal receiving devices, are configured at receiving terminal, it is characterised in that including：
Signal receiving module, for receiving the target sending signal launched by signal transmission system, wherein,
The target sending signal is generated according to the transmission matrix and target received signal of signal transmission system；
Signal demodulation module, signal demodulation is carried out for docking the collection of letters number, is believed with recovering the intended recipient
Number.
14. devices according to claim 13, it is characterised in that also include：
Signal merging module, before the docking collection of letters number carries out signal demodulation, for merging algorithm based on setting,
Signal to being received on R reception antenna merges treatment；
New reception signal generation module, for using the signal after merging treatment as new reception signal；Its
In, reception antenna total quantity in 2≤R≤signal transmission system.
15. devices according to claim 14, it is characterised in that the setting merges algorithm and includes：
Maximal ratio combiner algorithm, equal gain combining algorithm or selection combination algorithm；
Signal merging module specifically for：
According to the merging algorithm chosen and the R reception antenna specified, it is determined that merging matrix G；
According to formula：Complete to merge treatment to the signal received on R reception antenna, its
In, y is the combination of the signal received on R reception antenna.
16. devices according to claim 13, it is characterised in that signal demodulation module includes：
Target planisphere chooses unit, and sending form by the signal that signal sending end determines for basis chooses mesh
Mark planisphere；
Signal demodulation unit, for being demodulated to the reception signal using the target planisphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510921019.4A CN106899526A (en) | 2015-12-11 | 2015-12-11 | Signaling method and device, signal acceptance method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510921019.4A CN106899526A (en) | 2015-12-11 | 2015-12-11 | Signaling method and device, signal acceptance method and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106899526A true CN106899526A (en) | 2017-06-27 |
Family
ID=59188028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510921019.4A Withdrawn CN106899526A (en) | 2015-12-11 | 2015-12-11 | Signaling method and device, signal acceptance method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106899526A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101335556A (en) * | 2007-06-29 | 2008-12-31 | 华为技术有限公司 | Distributed MIMO system and data transceiving method thereof |
| US20100215113A1 (en) * | 2007-10-15 | 2010-08-26 | Ulf Lindgren | Method and System for Pre-Coding For Frequency Selective Radio Communication Channel |
| CN103607234A (en) * | 2013-09-22 | 2014-02-26 | 北京邮电大学 | Relay combination receiving method and system thereof |
-
2015
- 2015-12-11 CN CN201510921019.4A patent/CN106899526A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101335556A (en) * | 2007-06-29 | 2008-12-31 | 华为技术有限公司 | Distributed MIMO system and data transceiving method thereof |
| US20100215113A1 (en) * | 2007-10-15 | 2010-08-26 | Ulf Lindgren | Method and System for Pre-Coding For Frequency Selective Radio Communication Channel |
| CN103607234A (en) * | 2013-09-22 | 2014-02-26 | 北京邮电大学 | Relay combination receiving method and system thereof |
Non-Patent Citations (1)
| Title |
|---|
| 赵新雪等: "低复杂度最大似然MIMO信号检测算法", 《计算机工程与设计》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102882578B (en) | The method and apparatus of the precoding in wireless communication system | |
| US7352819B2 (en) | Multiantenna communications apparatus, methods, and system | |
| CN102301666B (en) | Precoding codebook and feedback representation | |
| CN101120529A (en) | Method and apparatus for combining space-frequency block coding, spatial multiplexing and beamforming in a mimo-ofdm system | |
| CN105450278A (en) | Method and apparatus for selection of virtual antennas | |
| WO2006055719A2 (en) | Precoding system and method for multi-user transmission in multiple antenna wireless systems | |
| TW200824379A (en) | A method of transmitting using phase shift-based precoding and an apparatus for implementing the same in a wireless communication system | |
| CN106612135A (en) | A signal transmission method, reception method and device based on multi-carrier spatial modulation | |
| CN105322991B (en) | MIMO transmission system and transmission method based on WFRFT precodings | |
| EP2630736B1 (en) | Antenna device and method for precoding data in a multiple-input multiple-output system | |
| CN106571858A (en) | Hybrid beam forming transmission system and method | |
| TW200913536A (en) | A method for communicating in a MIMO context | |
| CN107733492B (en) | Data transmitting and receiving method and device | |
| CN101860514B (en) | Unequal error protection method based on self-adaptive symbol carrier allocation | |
| CN101483503A (en) | Data transmitting, receiving method and apparatus for MIMO system | |
| CN102868433A (en) | Signal transmission method based on antenna selection in multiple-input multiple-output Y channel | |
| WO2011020359A1 (en) | Processing method and apparatus for multi-user multi-input multi-output based on orthogonal diversity | |
| de Almeida et al. | Space-time multiplexing codes: A tensor modeling approach | |
| CN103516486B (en) | Multi-antenna transmission method, method of reseptance and device based on vector selection modulation | |
| CN101944942B (en) | Low-complexity adaptive transmission multi-antenna transmission method and system | |
| CN107317612A (en) | Dispensing device, reception device, sending method, method of reseptance and communication system | |
| CN1983859A (en) | Multi-antenna duplexing transmitting and receiving device based on GMC and frequency-domain equilibrium method | |
| CN101815321A (en) | Data processing method and device for hybrid networking | |
| CN106899332A (en) | Signaling method and device | |
| CN106888040A (en) | Signal acceptance method and device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170627 |