CN107947843A - NOMA methods for the reduction pilot-frequency expense multiplex data of the extensive MIMO of millimeter wave - Google Patents
NOMA methods for the reduction pilot-frequency expense multiplex data of the extensive MIMO of millimeter wave Download PDFInfo
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- CN107947843A CN107947843A CN201711077270.2A CN201711077270A CN107947843A CN 107947843 A CN107947843 A CN 107947843A CN 201711077270 A CN201711077270 A CN 201711077270A CN 107947843 A CN107947843 A CN 107947843A
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- 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
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
- H04B7/0621—Feedback content
- H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
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- 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
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
- H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
- H04B7/0842—Weighted combining
- H04B7/0848—Joint weighting
- H04B7/0857—Joint weighting using maximum ratio combining techniques, e.g. signal-to- interference ratio [SIR], received signal strenght indication [RSS]
-
- 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
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
- H04B7/0868—Hybrid systems, i.e. switching and combining
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2647—Arrangements specific to the receiver only
- H04L27/2655—Synchronisation arrangements
- H04L27/2689—Link with other circuits, i.e. special connections between synchronisation arrangements and other circuits for achieving synchronisation
- H04L27/2691—Link with other circuits, i.e. special connections between synchronisation arrangements and other circuits for achieving synchronisation involving interference determination or cancellation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2647—Arrangements specific to the receiver only
- H04L27/2655—Synchronisation arrangements
- H04L27/2689—Link with other circuits, i.e. special connections between synchronisation arrangements and other circuits for achieving synchronisation
- H04L27/2692—Link with other circuits, i.e. special connections between synchronisation arrangements and other circuits for achieving synchronisation with preamble design, i.e. with negotiation of the synchronisation sequence with transmitter or sequence linked to the algorithm used at the receiver
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2647—Arrangements specific to the receiver only
- H04L27/2655—Synchronisation arrangements
- H04L27/2689—Link with other circuits, i.e. special connections between synchronisation arrangements and other circuits for achieving synchronisation
- H04L27/2695—Link with other circuits, i.e. special connections between synchronisation arrangements and other circuits for achieving synchronisation with channel estimation, e.g. determination of delay spread, derivative or peak tracking
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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
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
- H04L5/005—Allocation of pilot signals, i.e. of signals known to the receiver of common pilots, i.e. pilots destined for multiple users or terminals
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- 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
Abstract
The present invention provides a kind of NOMA methods of reduction pilot-frequency expense multiplex data for the extensive MIMO of millimeter wave, including：In transmitting terminal, accessed by the non-orthogonal multiple being multiplexed on power, the pilot signal of antenna port and data-signal are subjected to Signal averaging, and be transmitted to receiving terminal；In receiving terminal, the docking collection of letters number merges reception, obtains reference signal by docking a number progress channel estimation of collecting mail, then obtain data-signal by counteracting serial interference；The present invention can on data-signal superimposed pilot reference signal, being multiplexed identical running time-frequency resource realizes the NOMA of power domain, solve the problems, such as that LTE system pilot-frequency expense is excessive, lifting downlink peak rates carry, on this basis, transmitting terminal can send identical reference signal in the different pilot frequency locations in the same symbol of same RB, and receiving terminal is received by merging, increase effective received signal to noise ratio, channel estimating performance can be effectively improved.
Description
Technical field
The present invention relates to the communications field, more particularly to a kind of reduction pilot-frequency expense for the extensive MIMO of millimeter wave to be multiplexed
The NOMA methods of data.
Background technology
With the development of wireless communication technique, mobile Internet flow to the year two thousand twenty will increase by 1000 times.5th generation bee
Nest network service is referred to bring 1000 times of power system capacity to be lifted, and can provide many new features, for example supports magnanimity
Low power consuming devices access, and expand coverage rate, improve reliability, reduce delay etc..These targets need to use some new technologies
To realize, for example, extensive antenna (massive MIMO (Multiple-Input Multiple-Output)) technology, Quan Shuan
Work technology, cooperating relay technology, millimetre-wave attenuator and D2D communications etc..Existing all commercial mobile communication system all use
Radio-frequency spectrum in the range of 300MHZ-3GHZ, but as mobile communication subscriber and wireless data transmission rate explode, existing frequency
Band is crowded to capacity already, and data rate is improved by way of signal processing and has accomplished the limit.Therefore from resource expansion
Angle analysis, millimetre-wave attenuator and extensive MIMO technology are rich in development prospect in following 5G Research of wireless communication systems
Two research directions.
Millimeter wave frequency spectrum (30~300GHZ) will provide the vacant frequency spectrum of more than 1GHZ, so that as realizing Gbps data
The alternative technique of transmission rate, therefore be also the key technology of future cellular system research.Have that wavelength is short the characteristics of millimeter wave, ripple
Beam is narrow, flexibly controllable etc. can connect substantial amounts of equipment.Extensive MIMO technology is by dramatically increasing the number of Base Transmitter antenna
Mesh makes full use of Spatial Dimension resource.Extensive MIMO technology is combined with millimetre-wave attenuator can effectively improve area coverage
And spectrum efficiency.Additionally due to millimere-wave band wavelength is shorter, large-scale antenna array can be packaged into the shape of very little, higher
MIMO array gain can not only resist the increased path loss of millimeter wave, but also be to provide suitable link budget must
Indispensable.
Although millimeter wave frequency band bandwidth rich, serious path loss is had in the air, and extensive antenna
Beam forming is just complementary to.Beam forming technique refer to adjust base station array antenna on launch signal phase, make its
A certain specific direction in-phase stacking forms directional gain, improves the intensity of signal.The high beam forming of large-scale antenna array
Gain is enough to offset the path loss in millimeter wave transmission, and millimeter wave is since wavelength is shorter, its communication equipment have it is small,
It is light-weight, the features such as antenna area is small, easy to which large-scale antenna array to be packaged into compact shape.Millimetre-wave attenuator and big rule
The perfect adaptation of mould MIMO technology shows great application prospect, is expected to play a significant role in following 5G communicates.
By extensive MIMO technology be used for millimere-wave band form the extensive mimo system of millimeter wave, in fact power system capacity and
Associated efficiency can be significantly improved.However, lot of challenges is also faced with technical elements, if only with traditional digital beam
Formed, Antenna Design is extremely difficult, and with increasing considerably for number of antennas, it is hard that every antenna corresponds to a set of dedicated radio frequency
Part, its power consumption and cost are quite big, are difficult to realize.And use analog/digital hybrid Wave beam forming structure can be in combination with two kinds
The advantage of beam-forming technology, it is only necessary to which limited radio-frequency channel, supports extensive antenna system.But further, and receive
End is inserted into pilot signal in order to which estimated channel still needs in each resource block and carries out channel estimation, while with antenna number
When mesh increases on a large scale, the running time-frequency resource expense that pilot signal takes in the scene of downlink communication also can be increased drastically.Therefore,
Need there is an urgent need for a kind of efficient pilot signal of design of design and transmission plan, to overcome above-mentioned technical problem.
The content of the invention
In view of the foregoing deficiencies of prior art, the present invention provides a kind of reduction for the extensive MIMO of millimeter wave and leads
The NOMA methods of frequency expense multiplex data, to solve above-mentioned technical problem.
Provided by the present invention for the NOMA methods of the reduction pilot-frequency expense multiplex data of the extensive MIMO of millimeter wave, including
In transmitting terminal, accessed by the non-orthogonal multiple being multiplexed on power, by the pilot signal of antenna port and
Data-signal carries out Signal averaging, and is transmitted to receiving terminal；
In receiving terminal, the docking collection of letters number merges reception, and reference letter is obtained by docking a number progress channel estimation of collecting mail
Number, then data-signal is obtained by counteracting serial interference.
Further, it is described to include the pilot signal of antenna port and data-signal progress Signal averaging：For each day
The resource block of line end mouth, all pilot signals are overlapped with data-signal, and shared identical running time-frequency resource particle.
Further, transmitting terminal sends for the different pilot frequency locations in the same symbol at each moment and uses identical ginseng
Examine signal.
Further, the power for the pilot signal being superimposed on same resource block is more than the work(of the data-signal on same resource block
Rate.
Further, in receiving terminal, using the data-signal received in signal as noise signal, and the channel of UE-RS is carried out
Estimation, obtains pilot channel estimation result.
Further, the channel estimation includes the reception signal to synchronization, by way of maximum-ratio combing, obtains
Pilot frequency information, and using the pilot frequency information as pilot channel estimation result.
Further, signal will be received and subtract the pilot channel estimation as a result, obtaining residual signal, the residual signal bag
Data-signal and interference information are included, decoding is demodulated to the data-signal in residual signal.
Further, by maximal possibility estimation and pilot channel estimation as a result, being carried out to the data-signal in residual signal
Demodulating and decoding.
The present invention also provides a kind of computer-readable recording medium, computer program is stored thereon with, it is characterised in that：Should
Any of the above-described the method is realized when program is executed by processor.
The present invention also provides a kind of electric terminal, it is characterised in that including：Processor and memory；
The memory is used to store computer program, and the processor is used for the computer for performing the memory storage
Program, so that the terminal performs such as any of the above-described the method.
Beneficial effects of the present invention：The reduction pilot-frequency expense multiplex data for the extensive MIMO of millimeter wave in the present invention
NOMA methods, can on data-signal superimposed pilot reference signal, being multiplexed identical running time-frequency resource realizes power domain
NOMA, solve the problems, such as that LTE system pilot-frequency expense is excessive, lifting downlink peak rates carry, on this basis, transmitting terminal can
Different pilot frequency locations in the same symbol of same RB send identical reference signal, and receiving terminal is received by merging, increase
Effective received signal to noise ratio, can effectively improve channel estimating performance.
Brief description of the drawings
Fig. 1 is that conventional cell DRS (Dedicated Reference Signal) (CRS) arranges schematic diagram in the embodiment of the present invention.
Fig. 2 is that normal channel state information references symbol (CSI-RS) arranges schematic diagram in the embodiment of the present invention.
Fig. 3 is that common user dedicated reference symbol (UE-RS) arranges schematic diagram in the embodiment of the present invention.
Fig. 4 is the schematic diagram being superimposed of pilot signal and data-signal in the embodiment of the present invention.
Fig. 5 is RB normal channel state information references symbols (CSI-RS) arrangement schematic diagram in the embodiment of the present invention.
Fig. 6 is the schematic diagram that receiving terminal uses counteracting serial interference algorithm demodulating and decoding in the embodiment of the present invention.
Fig. 7 is the NOMA side for the reduction pilot-frequency expense multiplex data for being used for the extensive MIMO of millimeter wave in the embodiment of the present invention
The flow diagram of method.
Embodiment
Illustrate embodiments of the present invention below by way of specific instantiation, those skilled in the art can be by this specification
Disclosed content understands other advantages and effect of the present invention easily.The present invention can also pass through in addition different specific realities
The mode of applying is embodied or practiced, the various details in this specification can also be based on different viewpoints with application, without departing from
Various modifications or alterations are carried out under the spirit of the present invention.It should be noted that in the case where there is no conflict, following embodiments and implementation
Feature in example can be mutually combined.
It should be noted that the diagram provided in following embodiments only illustrates the basic structure of the present invention in a schematic way
Think, then only the display component related with the present invention rather than component count, shape and size during according to actual implementation in schema
Draw, kenel, quantity and the ratio of each component can be a kind of random change during its actual implementation, and its assembly layout kenel
It is likely more complexity.
The NOMA methods of the reduction pilot-frequency expense multiplex data for the extensive MIMO of millimeter wave in the present embodiment, bag
Include：
In transmitting terminal, accessed by the non-orthogonal multiple being multiplexed on power, by the pilot signal of antenna port and
Data-signal carries out Signal averaging, and is transmitted to receiving terminal；
In receiving terminal, the docking collection of letters number merges reception, and reference letter is obtained by docking a number progress channel estimation of collecting mail
Number, then data-signal is obtained by counteracting serial interference.
Existing LTE downlinks scene defines five kinds of pilot reference signals, is respectively cell special reference (CRS),
User's DRS (Dedicated Reference Signal) (UE-RS) is also known as (DM-RS), MBSFN reference signals, position reference (P-RS) and CSI
Reference signal (CSI-RS).The reference signal of CRS, CSI-RS, US-RS wherein on being demodulated for downlink user are required for accounting for
With independent running time-frequency resource.As shown in Figure 1, 2, 3, Fig. 1,2,3 be that tri- kinds of signal RE of CRS, CSI-RS and US-RS take in LTE
Sample, it can be seen that since reference signal needs to take independent example resources RE (Resource Element), work as user
When being transmitted using port0~port3 of 4 antennas, its CRS expense accounts for the 24/168=14.29% of total resources；And use 8
When layer is transmitted, the ratio that the US-RS for demodulation accounts for total resources is also 14.29%.It is used for downlink user in view of US-RS
Demodulating data when channel estimation, when using extensive antenna total pilot-frequency expense can bigger, be doubled and redoubled, influence frequency spectrum
The efficiency utilized.In the present embodiment, the superimposed pilot reference signal on data-signal, is multiplexed identical running time-frequency resource and realizes
The NOMA of power domain, solves the problems, such as that LTE system pilot-frequency expense is excessive, can make downlink peak in the case of 4 antenna port
It is worth speed lifting up to 20.69%.On this basis, transmitting terminal can be in the same symbol of same resource block RB (Resource Block)
Different pilot frequency locations in number send identical reference signal, and receiving terminal is received by merging, and increases effective received signal to noise ratio,
Channel estimating performance can be effectively improved.
In the present embodiment, for the resource block of each antenna port, all pilot signals are folded with data-signal
Add, and shared identical running time-frequency resource particle, i.e., transmitting terminal is for the different pilot frequency locations in the same symbol at each moment
Send and use identical reference signal, the power for the pilot signal being superimposed on same resource block is more than the data on same resource block
The power of signal, as shown in Figure 4,5.The present embodiment is by taking 4 antenna port CRS as an example, it is assumed that PDCCH takes 3 symbols, then leads to
It can be used for the RE numbers of data symbol to add 20.69% after crossing NOMA multiplexings, can be lifted equivalent to downlink peak rates
20.69%.Wherein on the video resource particle where reference signal, reference signal power is higher and is superimposed upon reference letter and gets well
Data signal power it is relatively low.Due to being superimposed the data-signal of low-power on reference signal, equivalent to introducing a part
Back noise, certain influence can be produced on the performance of channel estimation.Therefore in order to improve the performance of channel estimation, using extensive
The characteristics of mimo channel multidiameter delay is relatively low, and frequency selectivity is small, transmitting terminal can be in the differences in the same symbol of same RB
Pilot frequency locations send identical reference signal, and receiving terminal assume that the different pilot frequency locations in the same symbol of same RB have
Identical channel coefficients, channel estimating performance is improved by merging to receive.
As shown in Figure 6,7, in the present embodiment, for the multiplexed signals after superposition, in user's receiving terminal, string can be used
Algorithm (SIC) demodulating and decoding of row Interference Cancellation, specific implementation process are as follows：
1st, in transmitting terminal, for the RB on a conventional antenna port port, all pilot signals and data are believed
Number superposition, shares identical running time-frequency resource RE.Believed simultaneously for the symbol different frequent points at each moment using identical reference
Number, on power domain so that the power for the pilot signal being superimposed on same resource block is greater than the data letter on same resource block
Number.
2nd, the data message of user is regarded noise jamming, first carries out the letter of UE-RS by user according to the superposed signal of reception
Estimate that the reception signal for the same moment, pilot frequency information is solved by the way of maximum-ratio combing, is closed by high specific in road
And receive raising channel estimating performance；
3rd, the pilot signal estimated is subtracted from original reception signal, data-signal is obtained and adds other interference informations
Residual signal.
4th, using conventional Data Detection criterion, it is preferable that maximal possibility estimation can be used, led with reference to above decoded
Frequency signal is estimated to be demodulated decoding to the data message of user.
In the present embodiment, by receiving terminal by multiple diversity branches, after phase adjustment, according to appropriate gain
Coefficient, with being added, is re-fed into detector and is detected.Pass through phasing in each incoherent diversity branch of receiving terminal,
And be sent into detector after being added again by appropriate variable gain weighting and carry out relevant detection, maximum-ratio combing scheme is in receiving terminal
The collection of letters number need to be docked and do linear process, the raw information of originator then can be restored using Maximum Likelihood Detection.It was decoded
Journey is simple, easily realizes.
The present embodiment also provides a kind of computer-readable recording medium, is stored thereon with computer program, which is located
Reason device realizes any one of the present embodiment method when performing.
The present embodiment also provides a kind of electric terminal, including：Processor and memory；
The memory is used to store computer program, and the processor is used for the computer for performing the memory storage
Program, so that the terminal performs any one of the present embodiment method.
Computer-readable recording medium in the present embodiment, one of ordinary skill in the art will appreciate that：Realize above-mentioned each
The all or part of step of embodiment of the method can be completed by the relevant hardware of computer program.Foregoing computer program
It can be stored in a computer-readable recording medium.The program upon execution, performs the step for including above-mentioned each method embodiment
Suddenly；And foregoing storage medium includes：ROM, RAM, magnetic disc or CD etc. are various can be with the medium of store program codes.
Electric terminal in the present embodiment, including processor, memory, transceiver and communication interface, memory and communication
Interface is connected with processor and transceiver and completes mutual communication, and memory is used to store computer program, communication interface
For with communicate, processor and transceiver are used to run computer program, perform electric terminal and are as above used for millimeter wave
Each step of the NOMA methods of the reduction pilot-frequency expense multiplex data of extensive MIMO.
In the present embodiment, memory may include random access memory (RandomAccessMemory, abbreviation
RAM), it is also possible to further include nonvolatile memory (non-volatilememory), for example, at least a magnetic disk storage.
Above-mentioned processor can be general processor, including central processing unit (CentralProcessingUnit, letter
Claim CPU), network processing unit (NetworkProcessor, abbreviation NP) etc.；It can also be digital signal processor
(DigitalSignalProcessing, abbreviation DSP), application-specific integrated circuit
(ApplicationSpecificIntegratedCircuit, abbreviation ASIC), field programmable gate array (Field-
ProgrammableGateArray, abbreviation FPGA) either other programmable logic device, discrete gate or transistor logic device
Part, discrete hardware components.
The above-described embodiments merely illustrate the principles and effects of the present invention, not for the limitation present invention.It is any ripe
Know the personage of this technology all can carry out modifications and changes under the spirit and scope without prejudice to the present invention to above-described embodiment.Cause
This, those of ordinary skill in the art is complete without departing from disclosed spirit and institute under technological thought such as
Into all equivalent modifications or change, should by the present invention claim be covered.
Claims (10)
1. a kind of NOMA methods of reduction pilot-frequency expense multiplex data for the extensive MIMO of millimeter wave, it is characterised in that bag
Include：
In transmitting terminal, accessed by the non-orthogonal multiple being multiplexed on power, by the pilot signal and data of antenna port
Signal carries out Signal averaging, and is transmitted to receiving terminal；
In receiving terminal, the docking collection of letters number merges reception, and reference signal is obtained by docking a number progress channel estimation of collecting mail, then
Data-signal is obtained by counteracting serial interference.
2. the NOMA side of the reduction pilot-frequency expense multiplex data according to claim 1 for the extensive MIMO of millimeter wave
Method, it is characterised in that described to include the pilot signal of antenna port and data-signal progress Signal averaging：For each antenna
The resource block of port, all pilot signals are overlapped with data-signal, and shared identical running time-frequency resource particle.
3. the NOMA side of the reduction pilot-frequency expense multiplex data according to claim 2 for the extensive MIMO of millimeter wave
Method, it is characterised in that：Transmitting terminal sends for the different pilot frequency locations in the same symbol at each moment and uses identical ginseng
Examine signal.
4. the NOMA side of the reduction pilot-frequency expense multiplex data according to claim 3 for the extensive MIMO of millimeter wave
Method, it is characterised in that：The power for the pilot signal being superimposed on same resource block is more than the work(of the data-signal on same resource block
Rate.
5. the NOMA side of the reduction pilot-frequency expense multiplex data according to claim 1 for the extensive MIMO of millimeter wave
Method, it is characterised in that：In receiving terminal, using the data-signal received in signal as noise signal, and channel estimation is carried out, obtained
Pilot channel estimation result.
6. the NOMA side of the reduction pilot-frequency expense multiplex data according to claim 5 for the extensive MIMO of millimeter wave
Method, it is characterised in that：The channel estimation includes the reception signal to synchronization, by way of maximum-ratio combing, obtains
Pilot frequency information, and using the pilot frequency information as pilot channel estimation result.
7. the NOMA side of the reduction pilot-frequency expense multiplex data according to claim 6 for the extensive MIMO of millimeter wave
Method, it is characterised in that：Signal will be received and subtract the pilot channel estimation as a result, obtaining residual signal, the residual signal bag
Data-signal and interference information are included, decoding is demodulated to the data-signal in residual signal.
8. the NOMA side of the reduction pilot-frequency expense multiplex data according to claim 7 for the extensive MIMO of millimeter wave
Method, it is characterised in that：By maximal possibility estimation and pilot channel estimation as a result, being solved to the data-signal in residual signal
Reconcile code.
9. a kind of computer-readable recording medium, is stored thereon with computer program, it is characterised in that：The program is held by processor
Method any one of claim 1 to 8 is realized during row.
A kind of 10. electric terminal, it is characterised in that including：Processor and memory；
The memory is used to store computer program, and the processor is used for the computer journey for performing the memory storage
Sequence, so that the terminal performs the method as any one of claim 1 to 8.
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Cited By (5)
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|---|---|---|---|---|
| CN109361445A (en) * | 2018-09-29 | 2019-02-19 | 哈尔滨工业大学 | A kind of two-way non-orthogonal multiple cut-in method using full duplex relaying |
| CN111148220A (en) * | 2019-12-25 | 2020-05-12 | 北京邮电大学 | Positioning method and device |
| CN111698045A (en) * | 2019-03-14 | 2020-09-22 | 南京航空航天大学 | Energy efficiency power distribution method in millimeter wave communication system based on non-orthogonal multiple access |
| CN111726156A (en) * | 2020-06-06 | 2020-09-29 | 郑州大学 | NOMA-based resource allocation method and device |
| WO2024059638A1 (en) * | 2022-09-15 | 2024-03-21 | Qualcomm Incorporated | Data signaling with superimposed pilots |
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| CN109361445A (en) * | 2018-09-29 | 2019-02-19 | 哈尔滨工业大学 | A kind of two-way non-orthogonal multiple cut-in method using full duplex relaying |
| CN109361445B (en) * | 2018-09-29 | 2020-11-13 | 哈尔滨工业大学 | Bidirectional non-orthogonal multiple access method using full duplex relay |
| CN111698045A (en) * | 2019-03-14 | 2020-09-22 | 南京航空航天大学 | Energy efficiency power distribution method in millimeter wave communication system based on non-orthogonal multiple access |
| CN111698045B (en) * | 2019-03-14 | 2021-07-20 | 南京航空航天大学 | Energy efficiency power distribution method in millimeter wave communication system based on non-orthogonal multiple access |
| CN111148220A (en) * | 2019-12-25 | 2020-05-12 | 北京邮电大学 | Positioning method and device |
| CN111726156A (en) * | 2020-06-06 | 2020-09-29 | 郑州大学 | NOMA-based resource allocation method and device |
| WO2024059638A1 (en) * | 2022-09-15 | 2024-03-21 | Qualcomm Incorporated | Data signaling with superimposed pilots |
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