CN109728840A - Data transmission method and device - Google Patents
Data transmission method and device Download PDFInfo
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- CN109728840A CN109728840A CN201711029427.4A CN201711029427A CN109728840A CN 109728840 A CN109728840 A CN 109728840A CN 201711029427 A CN201711029427 A CN 201711029427A CN 109728840 A CN109728840 A CN 109728840A
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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
- H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
-
- 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
Abstract
This application provides a kind of data transmission method and devices.Wherein, this method comprises: transmitting terminal is according to pretreatment input symbol and pretreatment input symbol and pre-processes the mapping relations between output sequence, pretreatment output sequence is determined；Send the pretreatment output sequence.The pretreatment output sequence is the sequence pre-processed in code book.By data transmission method provided by the present application, UE multiplexing number can be increased in multi-address communication system, improve system transfer rate.
Description
Technical field
This application involves field of communication technology more particularly to multiple access methods and device.
Background technique
In a wireless communication system, multiple access technology can be introduced.In the wireless communication system for supporting multiple access, it can support
Multiple terminals access the identical network equipment and the network equipment carries out data transmission.Based on orthogonality, multiple access may include just
Hand over multiple access and non-orthogonal multiple (non-orthogonal multiple access, NOMA)；Based on resource multiplex mode, multiple access
It may include CDMA (code division multiple access, CDMA), time division multiple acess (time division
Multiple access, TDMA), frequency division multiple access (frequency division multiple access, FDMA) and space division
Multiple access (space division multiple access, SDMA).
With the development of wireless communication technique, in the wireless communication system for supporting multiple access, the quantity of access terminal continues
Increase, the connection number of the network equipment and terminal room continues to increase.Therefore, it in the wireless communication system for supporting multiple access, needs to grind
Study carefully and how to support more connection numbers.
Summary of the invention
In a first aspect, this application provides a kind of data transmission methods, comprising: according to pretreatment input symbol and pretreatment
It inputs symbol and pre-processes the mapping relations between output sequence, determine pretreatment output sequence；Send the pretreatment output sequence.
By the design, configuration pretreatment inputs symbol and pre-processes the mapping relations between output sequence, and the mapping relations are without limitation
For linear relationship, more low relevant pretreatment output sequences can be introduced, it is more low relevant pre- so as to introduce
Handle code book.When pre-processing code book for different UE separate configurations, it is multiple that UE can be increased while low interference between meeting UE
With number, so as to improve system transfer rate.
Second aspect, this application provides a kind of data transmission methods, comprising: according to pretreatment input bit and pretreatment
Mapping relations between input bit and pretreatment output sequence determine pretreatment output sequence, by pretreatment output sequence mapping
To v layers, layer mapping output symbol is obtained, wherein v is positive integer, and pre-processing includes at least two symbol in output sequence；It sends
The layer maps output symbol.By the design, more low relevant pretreatment output sequences can be introduced, so as to draw
Enter more low relevant pretreatment code books.It, can be low between meeting UE when pre-processing code book for different UE separate configurations
Increase UE multiplexing number while interference, so as to improve system transfer rate.
The third aspect, this application provides a kind of data transmission methods, comprising: input bit is mapped to v layers, obtains layer
Mapping output bit, wherein v is positive integer.Each layer of output bit in output bit is mapped for layer, it is defeated according to pre-processing
Enter bit and pre-process input bit and pre-process the mapping relations between output sequence, determines pretreatment output sequence, send pre-
Handle output sequence.By the design, more low relevant pretreatment output sequences can be introduced, it is more so as to introduce
Low relevant pretreatment code book.It, can the low interference between meeting UE when pre-processing code book for different UE separate configurations
Increase UE multiplexing number simultaneously, so as to improve system transfer rate.
First design, according to first aspect, second aspect or the third aspect, which is the first pre- place
Manage the sequence in code book, this method further include: determine pretreatment codebook set according to waveform is sent, the first pretreatment code book is pre-
Handle the code book in codebook set.If sending waveform is that discrete fourier extends orthogonal frequency division multiplexing DFT-s-OFDM, pre- to locate
Managing codebook set is the first pretreatment codebook set；If transmission waveform is cyclic prefix orthogonal frequency division multiplexing CP-OFDM, pre- to locate
Managing codebook set is the second pretreatment codebook set；First pretreatment codebook set and the second pretreatment codebook set are different.Show
Example property, include permanent mould code book in the first pretreatment codebook set, includes sparse code book in the second pretreatment codebook set.Pass through
The design can satisfy and send waveform to sent the requirement of data, thus improve data transfer efficiency.
Second design, is designed, this method according to first further include: is received control information, is included in the control information
At least one in code book index and shape information.Wherein, code book index is used for from determination first in advance in pretreatment codebook set
Code book is managed, shape information sends waveform for determining.By the design, waveform and/or the first pre- place can be sent with flexible configuration
Manage code book.It further, may include the code book index and waveform letter of the space layer for a space layer, in the control information
At least one in breath.
Third design includes R sequence in the first pretreatment code book according to first design or second design,
The relationship of the R sequence and the sequence in the second pretreatment code book is linear relationship, wherein R is the integer more than or equal to 1.The R
A sequence in a sequence is Si、-Si、SiOr-jSi, wherein j is imaginary unit, sequence SiIt is in the second pretreatment code book
Sequence.By the design, the number of pretreatment code book can be increased, therefore the UE multiplexing number in NOMA system can be increased, from
And system data rates can be increased.Further, the first pretreatment code book of generation can also keep the second pretreatment code book
Characteristic.
Fourth aspect, this application provides a kind of devices, including preprocessing module and transceiver module, wherein pretreatment mould
The mapping relations that block is used to input symbol according to pretreatment input symbol and pretreatment and pre-process between output sequence determine pre- place
Output sequence is managed, transceiver module is for sending the pretreatment output sequence.
5th aspect, this application provides a kind of devices, comprising: preprocessing module, for according to pretreatment input bit
Mapping relations between pretreatment input bit and pretreatment output sequence determine pretreatment output sequence, wherein pretreatment is defeated
It out include at least two symbol in sequence；Layer mapping block, maps to v layers for that will pre-process output sequence, and it is defeated to obtain layer mapping
Symbol out, wherein v is positive integer；Transceiver module, for sending the layer mapping output symbol.
6th aspect, this application provides a kind of devices, comprising: layer mapping block, for input bit to be mapped to v
Layer obtains layer mapping output bit, wherein v is positive integer；Preprocessing module, it is each in output bit for mapping layer
Layer output bit according to pretreatment input bit and pre-processes input bit and pre-processes the mapping relations between output sequence, really
Surely output sequence is pre-processed；Transceiver module, for sending pretreatment output sequence.
First design, according to fourth aspect, the 5th aspect or the 6th aspect, pretreatment output sequence is the first pretreatment
Sequence in code book, preprocessing module are also used to according to the determining pretreatment codebook set of waveform is sent, and first, which pre-processes code book, is
Pre-process the code book in codebook set.If sending waveform is that discrete fourier extends orthogonal frequency division multiplexing DFT-s-OFDM, in advance
Handling codebook set is the first pretreatment codebook set；If transmission waveform is cyclic prefix orthogonal frequency division multiplexing CP-OFDM, in advance
Handling codebook set is the second pretreatment codebook set；First pretreatment codebook set and the second pretreatment codebook set are different.
Illustratively, include permanent mould code book in the first pretreatment codebook set, include sparse code book in the second pretreatment codebook set.
Second design, is designed according to first, and transceiver module is also used to receive control information, includes in the control information
At least one in code book index and shape information.If including code book index in the control information, preprocessing module is also used to root
It is used to from pretreatment codebook set determine the first pretreatment code book according to code book index.If including that waveform is believed in the control information
Breath, preprocessing module, which is also used to be determined according to shape information, sends waveform.Further, for a space layer, control letter
It may include at least one in the code book index and shape information of the space layer in breath.
Third design includes R sequence in the first pretreatment code book according to first design or second design,
The relationship of the R sequence and the sequence in the second pretreatment code book is linear relationship, wherein R is the integer more than or equal to 1.The R
A sequence in a sequence is Si、-Si、SiOr-jSi, wherein j is imaginary unit, sequence SiIt is in the second pretreatment code book
Sequence.
7th aspect, this application provides a kind of devices, which can be realized first aspect and first aspect respectively designs
At least one of function.The function can be realized by way of hardware, software or hardware add software.The hardware or software
Including one or more modules corresponding with above-mentioned function.In one example, the device include: processor, memory and
Transceiver.Wherein, memory and processor coupling, transceiver and processor coupling, processor execute the memory storage
Program instruction.Processor is closed according to the mapping between pretreatment input symbol and pretreatment input symbol and pretreatment output sequence
System, determines pretreatment output sequence, sends the pretreatment output sequence using transceiver.
Eighth aspect, this application provides a kind of devices, which can be realized second aspect and second aspect respectively designs
At least one of function.The function can be realized by way of hardware, software or hardware add software.The hardware or software
Including one or more modules corresponding with above-mentioned function.In one example, the device include: processor, memory and
Transceiver.Wherein, memory and processor coupling, transceiver and processor coupling, processor execute the memory storage
Program instruction.Processor is according to pretreatment input bit and pre-processes input bit and pre-processes the mapping pass between output sequence
System determines pretreatment output sequence, and pretreatment output sequence is mapped to v layers, obtains layer mapping output symbol, utilizes transceiver
It sends layer and maps output symbol.Wherein, v is positive integer, and pre-processing includes at least two symbol in output sequence.
9th aspect, this application provides a kind of devices, which can be realized the third aspect and the third aspect respectively designs
At least one of function.The function can be realized by way of hardware, software or hardware add software.The hardware or software
Including one or more modules corresponding with above-mentioned function.In one example, the device include: processor, memory and
Transceiver.Wherein, memory and processor coupling, transceiver and processor coupling, processor execute the memory storage
Program instruction.Input bit is mapped to v layers by processor, obtains layer mapping output bit, wherein v is positive integer.Layer is reflected
Each layer of output bit in output bit is penetrated, processor is according to pretreatment input bit and pretreatment input bit and pretreatment
Mapping relations between output sequence determine pretreatment output sequence, send pretreatment output sequence using transceiver.
First design, according to the 7th aspect, eighth aspect or the 9th aspect, which is the first pre- place
The sequence in code book is managed, processor is also used to according to the determining pretreatment codebook set of waveform is sent, and the first pretreatment code book is pre-
Handle the code book in codebook set.If sending waveform is that discrete fourier extends orthogonal frequency division multiplexing DFT-s-OFDM, pre- to locate
Managing codebook set is the first pretreatment codebook set；If transmission waveform is cyclic prefix orthogonal frequency division multiplexing CP-OFDM, pre- to locate
Managing codebook set is the second pretreatment codebook set；First pretreatment codebook set and the second pretreatment codebook set are different.Show
Example property, include permanent mould code book in the first pretreatment codebook set, includes sparse code book in the second pretreatment codebook set.
Second design, is designed according to first, and processor also utilizes transceiver to receive and controls information, in the control information
Including at least one in code book index and shape information.Wherein, code book index is used to determine from the pretreatment codebook set
The first pretreatment code book.Shape information is for determining the transmission waveform.Further, for a space layer, the control
It may include at least one in the code book index and shape information of the space layer in information processed.
Third design includes R sequence, the R in the first pretreatment code book according to first design or second design
The relationship of a sequence and the sequence in the second pretreatment code book is linear relationship, wherein R is the integer more than or equal to 1.The R
A sequence in sequence is Si、-Si、SiOr-jSi, wherein j is imaginary unit, sequence SiIt is in the second pretreatment code book
Sequence.
Tenth aspect, this application provides a kind of chip system, which includes processor, can also include storage
Device, for realizing first aspect and first aspect respectively design at least one.The chip system can be made of chip, can also be with
Include chip and other discrete devices.
Tenth on the one hand, and this application provides a kind of chip system, which includes processor, can also include depositing
Reservoir, for realizing second aspect and second aspect respectively design at least one.The chip system can be made of chip, can also
To include chip and other discrete devices.
12nd aspect, this application provides a kind of chip system, which includes processor, can also include depositing
Reservoir, for realizing the third aspect and the third aspect respectively design at least one.The chip system can be made of chip, can also
To include chip and other discrete devices.
13rd aspect, this application provides a kind of computer program products comprising instruction, when it is transported on computers
When row so that computer execute first aspect and first aspect respectively design at least one.
Fourteenth aspect, this application provides a kind of computer program products comprising instruction, when it is transported on computers
When row so that computer execute second aspect and second aspect respectively design at least one.
15th aspect, this application provides a kind of computer program products comprising instruction, when it is transported on computers
When row so that computer execute the third aspect and the third aspect respectively design at least one.
16th aspect, this application provides a kind of data transmission methods, comprising: based on first pretreatment code book and/or
Second pretreatment code book pre-processes input data, obtains pretreatment output sequence, sends pretreatment output sequence.Its
In, it include R sequence in the first pretreatment code book, the relationship that the R sequence and second pre-process the sequence in code book is linear
Relationship, R are the integer more than or equal to 1.
First design, according to the 16th aspect, a sequence in the R sequence is Si、-Si、SiOr-jSi, wherein
J is imaginary unit, sequence SiIt is the sequence in the second pretreatment code book.By the design, the number of code book can be increased, generated
The first pretreatment code book can also keep the characteristic of the second pretreatment code book.
17th aspect, this application provides a kind of devices, which can be realized first aspect and first aspect is respectively set
The function of at least one of meter.The function can be realized by way of hardware, software or hardware add software.The hardware is soft
Part includes one or more modules corresponding with above-mentioned function.In one example, which includes: processor, memory
And transceiver.Wherein, memory and processor coupling, transceiver and processor coupling, processor execute the memory storage
Program instruction.Processor is based on the first pretreatment code book and/or the second pretreatment code book pre-processes input data, obtains
To pretreatment output sequence, processor sends pretreatment output sequence using transceiver.Wherein, include in the first pretreatment code book
The relationship of R sequence, the R sequence and the sequence in the second pretreatment code book is linear relationship, and R is the integer more than or equal to 1.
First design, according to the 17th aspect, a sequence in the R sequence is Si、-Si、SiOr-jSi, wherein
J is imaginary unit, sequence SiIt is the sequence in the second pretreatment code book.By the design, the number of code book can be increased, generated
The first pretreatment code book can also keep the characteristic of the second pretreatment code book.
18th aspect, this application provides a kind of chip system, which includes processor, can also include depositing
Reservoir, for realizing at least one in the 16th aspect and each design of the 16th aspect.The chip system can be made of chip,
Also chip and other discrete devices be may include.
19th aspect, this application provides a kind of computer program products comprising instruction, when it is transported on computers
When row, so that computer executes at least one in the 16th aspect and each design of the 16th aspect.
Detailed description of the invention
It in order to more clearly explain the technical solutions in the embodiments of the present application, below will be to involved in the embodiment of the present application
Attached drawing be illustrated.
Fig. 1 is a kind of process flow exemplary diagram provided by the embodiments of the present application；
Fig. 2 is the exemplary diagram of the first data transmission method provided by the embodiments of the present application；
Fig. 3 is a kind of process flow exemplary diagram provided by the embodiments of the present application using the first data transmission method；
Fig. 4 is another process flow exemplary diagram provided by the embodiments of the present application using the first data transmission method；
Fig. 5 is the exemplary diagram of second of data transmission method provided by the embodiments of the present application；
Fig. 6 is a kind of process flow exemplary diagram of second of data transmission method of application provided by the embodiments of the present application；
Fig. 7 is another process flow exemplary diagram of second of data transmission method of application provided by the embodiments of the present application；
Fig. 8 is the exemplary diagram of the third data transmission method provided by the embodiments of the present application；
Fig. 9 is a kind of process flow exemplary diagram provided by the embodiments of the present application using the third data transmission method；
Figure 10 is another process flow exemplary diagram provided by the embodiments of the present application using the third data transmission method；
Figure 11 is a kind of apparatus structure exemplary diagram provided by the embodiments of the present application；
Figure 12 is another apparatus structure exemplary diagram provided by the embodiments of the present application；
Figure 13 is another apparatus structure exemplary diagram provided by the embodiments of the present application；
Figure 14 is another apparatus structure exemplary diagram provided by the embodiments of the present application.
Specific embodiment
Technical solution provided by the embodiments of the present application may be applied to various communication systems, such as: the 5th third-generation mobile communication
Technology (the fifth generation mobile communication technology, 5G) system and long term evolution
(long term evolution, LTE) system.Wherein, 5G can also be known as new radio (new radio, NR).
In a wireless communication system, including communication equipment, it can use interface-free resources between communication equipment to carry out wireless communication.
Wherein, communication equipment includes the network equipment and terminal device, and the network equipment can also be known as network side equipment.Interface-free resources can be with
Including at least one in time-domain resource, frequency domain resource and code resource.Technical solution provided by the embodiments of the present application is mainly used in
Wireless communication between communication equipment.Wireless communication between communication equipment may include: wireless between the network equipment and terminal device
Wireless communication between communication, the network equipment and the wireless communication and terminal device and terminal device of LA Management Room.In this Shen
Please be in embodiment, term " wireless communication " could be alternatively referred to as " communicating ", and term " communication " can also be described as " data transmission "
Or " transmission ".
The invention relates to terminal device can also be known as terminal, be a kind of setting with radio transmission-receiving function
It is standby, land can be deployed in, including indoor or outdoors, hand-held or vehicle-mounted；(such as steamer) can also be deployed on the water surface；Also
It can dispose in the sky (such as on aircraft, balloon and satellite etc.).Terminal device can be user equipment (user
Equipment, UE), wherein UE includes the handheld device with wireless communication function, mobile unit, wearable device or meter
Calculate equipment.Illustratively, UE can be mobile phone (mobile phone), tablet computer or the computer with radio transmission-receiving function.Eventually
End equipment can also be virtual reality (virtual reality, VR) terminal device, augmented reality (augmented
Reality, AR) terminal device, the wireless terminal in Industry Control, it is unmanned in wireless terminal, the nothing in tele-medicine
The wireless terminal in wireless terminal, smart city (smart city), wisdom family (smart in line terminal, smart grid
Home wireless terminal in) etc..In the embodiment of the present application, realizes that the device of the function of terminal can be terminal, be also possible to
Terminal is supported to realize the device of the function in terminal.In the embodiment of the present application, to realize that the device of the function of terminal is terminal, with
For terminal is UE, technical solution provided by the embodiments of the present application is described.
The invention relates to the network equipment include base station (base station, BS), be that one kind is deployed in nothing
The equipment that can be carried out wireless communication with terminal in line access.Wherein, base station may be such as macro base station, micro- there are many form
Base station, relay station and access point etc..Illustratively, the invention relates to base station can be base station in 5G system or
Base station in LTE system, wherein the base station in 5G system can also be known as transmitting and receiving point (transmission
Reception point, TRP) or gNB.In the embodiment of the present application, realize that the device of the function of the network equipment can be network and set
It is standby, it is also possible to support the network equipment to realize the device of the function in the network equipment.In the embodiment of the present application, to realize that network is set
The device of standby function is the network equipment, by taking the network equipment is base station as an example, describes technical solution provided by the embodiments of the present application.
In a wireless communication system, when carrying out wireless communication between communication equipment, the communication equipment for sending data can also claim
For transmitting terminal, the communication equipment for receiving data can also be known as receiving end.For being carried out wireless communication between base station and UE, base station
Data are sent to UE, when UE receives the data that base station is sent, base station can also be known as transmitting terminal, and UE can also be known as receiving end；
UE sends data to base station, and when base station receives the data that UE is sent, UE can also be known as transmitting terminal, and base station can also be known as receiving
End.
In NOMA system, transmitting terminal can be based on various possible process flows, handle to input data concurrent
It send.Illustratively, transmitting terminal can be based on process flow shown in FIG. 1, handled input data and sent.Such as Fig. 1 institute
Show, which includes bit-level processing and symbol level processing.Wherein, bit-level processing can also be known as bit-level operation,
Symbol level processing can also be known as symbol level operation.
Bit-level processing includes forward error correction (forward error correction, FEC) and intertexture/scrambling.
FEC processing is for carrying out channel coding to input bit, so that receiving end can detecte error code or can correct
Error code, so as to enhance the reliability of data transmission.When carrying out FEC, the common forward error correction of the art can be used
Code encodes input bit.Wherein, common forward error correction can be convolutional code or block code.When carrying out FEC, to defeated
Enter bit to be encoded, obtains coded-bit.Wherein, coded-bit is the bit by forward error correction coding, can also be claimed
For other title, the application is with no restrictions.
When being interleaved/scrambling, bit is scrambled using scrambling code, for reducing the interference between data.Be interleaved/
When scrambling, bit can also be interleaved using the art common deinterleaving method, so that adjacent bit is decentralized, be kept away
Exempt from the error code that concentration is generated in transmission process.Wherein, common deinterleaving method can be ranks intertexture, be also possible to according to friendship
Pattern (pattern) is knitted to be interleaved.It, can be to bit elder generation if being scrambled and being interweaved to bit when being interleaved/scrambling
It is scrambled and is interleaved again, can also interweaved to the advanced row of bit and scramble again, the application is with no restrictions.When being scrambled
Different scrambling codes can be used to scramble the bit of different UE, different interleaving pattern can be used when being interleaved to different UE
Bit be interleaved, for reducing the correlation between the data of different UE, so as to reduce the interference between UE.To encoding ratio
Spy is interleaved and/or scrambles, and obtains scrambler bits.
Symbol level processing includes that pretreatment output symbol sequence generates and symbol to resource element (resource
Element, RE) mapping.It is being based on orthogonal frequency division multiplexing (orthogonal frequency division
Multiplexing, OFDM) communication system in, illustratively, the communication system be 5G system or LTE system, one money
A subcarrier is corresponded on a corresponding symbol and frequency domain in source element time domain.
When carrying out pretreatment output symbol sequence generation, scrambler bits can be pre-processed, obtain pretreatment output
Symbol sebolic addressing.Pre-processing in output symbol sequence includes positive integer symbol, which can be complex symbol.Wherein, pre- place
Pretreatment output sequence can also be known as by managing output symbol sequence, and pre-processing the symbol for including in output symbol sequence can also claim
To pre-process output symbol.Symbol is carried out to when resource element mapping, the symbol pre-processed in output symbol sequence can be reflected
It is incident upon resource element, transmitting terminal is allowed to send the symbol in resource element.Wherein, symbol can be with to resource element mapping
Referred to as resource element mapping or other titles, the application is with no restrictions.
For being communicated between base station and UE, if transmitting terminal is UE, the symbol of different UE is at resource element mapping
Respective pretreatment output symbol can be mapped to identical resource element and sent by reason, and the pretreatment of different UE exports symbol
Number be it is non-orthogonal, base station can receive the superpositions of multiple non-orthogonal pretreatment output symbols in the resource element；If
Transmitting terminal is base station, and the pretreatment output symbol of different UE can be mapped to identical resource element and sent by base station, no
Pretreatment output symbol with UE is non-orthogonal.In the embodiment of the present application, data to be sent can be can eat dishes without rice or wine by
The data of transmission；Be also possible to it is processed after can be in the data for eating dishes without rice or wine to be sent, the application is with no restrictions.
The processing for obtaining the modulation symbol sequence of UE is properly termed as pre-processing.Wherein, pretreatment can also be known as other names
Claim, the application is with no restrictions.The modulation symbol of different UE, which maps to identical resource element and send, can also be known as UE's
It is multiplexed, the number for the UE that can be multiplexed in identical resource element is properly termed as UE multiplexing number.
With the development of wireless communication technique, the connection number in communication system continues to increase, in order to support more to connect
Number, a kind of possible method are to increase UE multiplexing number.Relative orthogonal multiple access, NOMA can provide relatively large number of UE multiplexing
Number.In NOMA system, UE multiplexing number in order to further increase, the embodiment of the present application provides following several method and corresponding
Device.
Fig. 2 show the first data transmission method provided by the embodiments of the present application, as shown in Fig. 2, transmitting terminal is according to pre-
Mapping relations between processing input symbol and pretreatment input symbol and pretreatment output sequence determine pretreatment output sequence,
Send the pretreatment output sequence.Wherein, sending the pretreatment output sequence can also be described as sending the pretreatment of the determination
Output sequence.It is determined according to the mapping relations between pretreatment input symbol and pretreatment input symbol and pretreatment output sequence pre-
Processing output sequence can also be described as pre-processing, the first data transmission method provided by the embodiments of the present application can also describe
Are as follows: transmitting terminal carries out pretreatment input symbol according to the mapping relations between pretreatment input symbol and pretreatment output sequence pre-
Processing obtains pretreatment output sequence, sends the obtained pretreatment output sequence.
Pretreatment input symbol can be x symbol, and the combination value of the x symbol can be any in M value
It is a.In the embodiment of the present application, the combination value of the x symbol could be alternatively referred to as the value of the x symbol.Pretreatment input
Mapping relations between symbol and pretreatment output sequence can be described as reflecting between the M value and M pretreatment output sequence
Penetrate relationship.Wherein, x and M is the integer more than or equal to 1, and pretreatment input symbol can be complex symbol, a pretreatment output
It include positive integer symbol in sequence.This M pretreatment output sequence is included in the first pretreatment code book, can also be described as
It include this M pretreatment output sequence in first pretreatment code book.In the embodiment of the present application, pretreatment code book can also be known as
Other titles, the first pretreatment code book can also be known as pretreatment code book A or other titles, and the application is with no restriction.First
Pretreatment code book is included in pretreatment codebook set, and can also be described as pre-processing in codebook set includes the first pretreatment code
This.In the embodiment of the present application, pre-processing includes available pretreatment code book in codebook set, includes in available pretreatment code book
Available preprocessing sequence.
In NOMA system, in traditional preprocess method, preconditioning matrix is configured, by pretreatment input symbol and in advance
Processing array is multiplied, and obtains pretreatment output sequence, is linear relationship between pretreatment input symbol and pretreatment output sequence.For
The interference between the UE being multiplexed is reduced, that is, reduces the correlation between the pretreatment output sequence of different UE, can be difference
UE separate configurations preconditioning matrix, since the number of preconditioning matrix is limited, the number so as to cause the UE that can be multiplexed has
Limit.By the first data transmission method provided by the embodiments of the present application, configuration pretreatment input symbol and pretreatment output sequence
Mapping relations between column, the mapping relations can introduce more low relevant pretreatment outputs without being limited to linear relationship
Sequence, so as to introduce more low relevant pretreatment code books.It, can when pre-processing code book for different UE separate configurations
To increase UE multiplexing number while low interference between meeting UE, so as to improve system transfer rate.
In the first data transmission method provided by the embodiments of the present application, when pretreatment input symbol is modulation symbol
When, pretreatment input symbol can be set according to modulation system and pre-process the mapping relations between output sequence.
Illustratively, it is equal to 1 with x, pretreatment input symbol is by quadrature phase shift keying (quadrature phase
Shift keying, QPSK) modulation modulation symbol for, pretreatment input symbol and pre-process output sequence between mapping close
System can be described by table 1.As shown in table 1, the combination value of every 1 pretreatment input symbol can have 4 kinds of possible values,
4 kinds of possible values are respectively q1, q2, q3 and q4, wherein The corresponding pretreatment output sequence of this 4 kinds possible values is as shown in table 1.Pretreatment is inputted
1 symbol in symbol determines that its corresponding pretreatment output sequence is when the value of the symbol is q1Wherein,When the value of the symbol is q2, determine that its corresponding pretreatment output sequence isWherein,When the value of the symbol is q3, determine that its corresponding pretreatment is defeated
Sequence is outWherein,When the value of the symbol is q4, determine that its is corresponding
Pre-processing output sequence isWherein,Wherein, k is positive integer, WithFor plural number, i=0,1 ..., k-1.
Table 1
Illustratively, it is equal to 2 with x, pretreatment input symbol is by bi-phase shift keying (binary phase shift
Keying, BPSK) modulation modulation symbol for, pretreatment input symbol and the mapping relations pre-processed between output sequence can be with
It is described by table 2.As shown in table 2, the combination value of every 2 pretreatments input symbol can have 4 kinds of possible values, and this 4 kinds
Possible value is respectively [q1, q1], [q1, q2], [q2, q1] and [q2, q2], illustratively, q1=1, q2=-1.This 4 kinds
The corresponding pretreatment output sequence of possible value is as shown in table 2.For pretreatment input symbol in 2 symbols, when this 2
The 1st symbol value in a symbol is q1 and the 2nd symbol value when being q1, and corresponding pretreatment output sequence isIts
In,When the 1st symbol value in 2 symbols is q1 and the 2nd symbol value
When for q2, determine that its corresponding pretreatment output sequence isWherein,When this 2
The 1st symbol value in a symbol is q2 and the 2nd symbol value when being q1, determines that its corresponding pretreatment output sequence isWherein,When the 1st symbol value in 2 symbols is q2 and the 2nd symbol
When number value is q2, determine that its corresponding pretreatment output sequence isWherein,
Wherein, k is positive integer,WithFor plural number, i=0,1 ..., k-1.
Table 2
It in the method, can be that transmitting terminal sends signaling by receiving end, which carries modulation system and indicate information, uses
It is the modulation system of transmitting terminal configuration in instruction receiving end；Transmitting terminal receives the signaling that receiving end is sent, and is determined by the signaling
Modulation system.Wherein, which can carry modulation system mark.It should be noted that at this point, the transmitting terminal in this method is
The receiving end when signalling is carried out, the receiving end in this method is transmitting terminal when carrying out the signalling.Table 3 is shown
One example of the mapping relations of modulation system mark and corresponding modulation system.In the method, illustratively, receiving end is
Base station, transmitting terminal UE；Receiving end is the first UE, and transmitting terminal is the 2nd UE；Or receiving end is first base station, transmitting terminal second
Base station.
In the embodiment of the present application, signaling can be high-level signaling or physical layer signaling.High-level signaling can be wireless
Resources control (radio resource control, RRC) signaling, broadcast message, system message or media access control
(medium access control, MAC) control element (control element, CE).Physical layer signaling can be physics
The signaling that the signaling or physical data channel that control channel carries carry, wherein the signaling that physical control channel carries can be with
Signaling, enhancing Physical Downlink Control Channel (enhanced physical downlink for Physical Downlink Control Channel carrying
Control channel, EPDCCH) carry signaling, narrowband Physical Downlink Control Channel (narrowband physical
Downlink control channel, NPDCCH) carry signaling or machine type communication Physical Downlink Control Channel
(machine type communication (MTC) physical downlink control channel, MPDCCH) is carried
Signaling.The signaling that Physical Downlink Control Channel carries can also be known as Downlink Control Information (downlink control
Information, DCI).The signaling that physical control channel carries can also be physics pair link control channel (physical
Sidelink control channel) carry signaling, physics pair link control channel carry signaling can also be known as pair
Link control message (sidelink control information, SCI).
Table 3
| Modulation system mark | Modulation system |
| 0 | BPSK |
| 1 | QPSK |
| 2 | 16 quadrature amplitude modulations (16 quadrature amplitude modulation, 16QAM) |
| 3 | 64 quadrature amplitude modulations (64 quadrature amplitude modulation, 64QAM) |
In the method, transmitting terminal can determine modulation system, be modulated using the modulation system to data to be sent,
And signaling is sent to receiving end, its modulation system used is indicated by the signaling.It wherein, may include modulation methods in the signaling
Formula mark.In the method, illustratively, receiving end is base station, transmitting terminal UE；Receiving end is the first UE, transmitting terminal the
Two UE；Or receiving end is first base station, transmitting terminal is the second base station.
In the first data transmission method provided by the embodiments of the present application, transmitting terminal can be used waveform and send pretreatment
Output sequence.In the embodiment of the present application, transmitting terminal, which sends pretreatment output sequence, can also be described as the pre- place of transmitting terminal transmission
Manage the symbol in output sequence.Wherein, the waveform that transmitting terminal uses can also be known as send waveform, transmitted waveform, waveform or
Other titles, the application is with no restrictions.Illustratively, orthogonal frequency division multiplexing can be extended for discrete fourier by sending waveform
(discrete fourier transform spreading OFDM, DFT-s-OFDM) waveform or cyclic prefix orthogonal frequency
It is multiplexed (cyclic prefix orthogonal frequency division multiplexing, CP-OFDM) waveform.?
In the embodiment of the present application, DFT-s-OFDM waveform could be alternatively referred to as DFT-s-OFDM, and CP-OFDM waveform could be alternatively referred to as
CP-OFDM。
If transmitting terminal sends data to be sent using DFT-s-OFDM, transmitting terminal sends pretreatment output sequence
It can also include that discrete Fourier (discrete fourier transform, DFT) transformation is carried out to pretreatment output sequence.
Specifically, transmitting terminal according to pretreatment input symbol and pretreatment input symbol and pre-processes the mapping relations between output sequence,
It determines pretreatment output sequence, DFT transform is carried out to pretreatment output sequence, frequency domain symbol is obtained, sends the frequency domain symbol.Its
In, transmitting terminal, which carries out DFT transform to pretreatment output sequence, to be described are as follows: transmitting terminal is to the symbol in pretreatment output sequence
Number carry out DFT transform.If transmitting terminal sends data to be sent using DFT-s-OFDM, can be used shown in Fig. 3
Process flow handles input data.May include in process flow shown in Fig. 3 intertexture/scrambling, modulation, layer mapping,
Pretreatment and DFT can also include domain coding and resource element mapping.
As shown in figure 3, input data can be Q code word.A code word in the Q code word can be to one group of input
Bit carries out the data block obtained after forward error correction coding.Wherein, which can also be known as encoding block, and the application does not limit
System.Q is the integer more than or equal to 1, and illustratively, Q is equal to 2.Transmitting terminal carries out each of Q code word code word respectively
Scrambling, obtains the corresponding scrambler bits of each code word.Alternatively, transmitting terminal hands over each of Q code word code word respectively
It knits and scrambles, obtain the corresponding scrambler bits of each code word.It wherein, can be first right when transmitting terminal is interleaved and scrambles to code word
The code word is scrambled to be interleaved again, can also be first interleaved to the code word and be scrambled again, the application is with no restrictions.
Scrambler bits are modulated, modulation symbol is obtained.It illustratively, can be to the corresponding scrambler bits of each code word point
It is not modulated, obtains the corresponding modulation symbol of each code word.Specifically, it is based on corresponding modulation system, it is corresponding to each code word
Scrambler bits are modulated, and obtain the corresponding modulation symbol of each code word.Wherein, the modulation system of different code words can be identical,
Can be different, the application is with no restrictions.Modulation system can also be described as the mapping relations between input bit and output symbol.Show
Example property, modulation system can be the common modulation systems of the art such as BPSK, QPSK, 16QAM and 64QAM.
Layer mapping is carried out to modulation symbol, modulation symbol is mapped to v layers, obtains a layer mapping symbols.Specifically, by Q
The corresponding modulation symbol of code word maps to v layers, obtains v mapping symbols layer by layer.Wherein, v is the integer more than or equal to 1.Pass through layer
Mapping, can be such that transmitting terminal and receiving end carries out data transmission at least one space layer, so as to pass through multiple space layers
Data are transmitted, message transmission rate is increased.
Layer mapping symbols are pre-processed, pretreatment output sequence is obtained.Specifically, to each in layer mapping symbols
Layer symbol is pre-processed, and the corresponding pretreatment output sequence of this layer of symbol is obtained.The pretreatment can be the embodiment of the present application
The pretreatment in the first data transmission method provided.I.e. to each layer of symbol in layer mapping symbols, made with this layer of symbol
Symbol is inputted for pretreatment, symbol and pretreatment input symbol are inputted according to pretreatment and pre-process the mapping between output sequence and is closed
System determines pretreatment output sequence.By pretreatment, v layers of pretreatment output sequence can be obtained.
Send pretreatment output sequence.Specifically, the symbol in pretreatment output sequence is sent.
Sending pretreatment output sequence further includes carrying out DFT transform to pretreatment output sequence, obtains frequency domain symbol, sends
The frequency domain symbol.DFT transform is carried out to v layers of pretreatment output sequence, v layers of frequency symbol can be obtained.
Further, sending pretreatment output sequence can also include carrying out precoding to frequency domain symbol, obtain mapping symbol
Number, send the mapping symbols.Illustratively, v layers of frequency symbol are subjected to linear transformation, obtain the corresponding mapping of each antenna port
Symbol sends the corresponding mapping symbols of the antenna port in each antenna port.Wherein, mapping symbols be can antenna port into
The data that row is sent, or can also be known as other name in the data that antenna port is sent after treatment
Claim, the application is with no restrictions.Again illustratively, v layers of frequency symbol are multiplied with encoder matrix, obtain by allocating pre-coding matrix
The corresponding mapping symbols of each antenna port.
Still further, sending pretreatment output sequence can also include that mapping symbols are mapped to resource element, providing
Source element sends corresponding mapping symbols.Specifically, for an antenna port, the corresponding mapping symbols of the antenna port are reflected
It is incident upon corresponding resource element, sends corresponding mapping symbols in the resource element of the antenna port.Illustratively, mapping is accorded with
A symbol in number maps to a resource element, sends the symbol in the resource element.
If transmitting terminal sends data to be sent using CP-OFDM, process flow pair shown in Fig. 4 can be used
Input data is handled.It may include intertexture/scrambling, modulation, layer mapping and pretreatment in process flow shown in Fig. 4, go back
It may include precoding and resource element mapping.Wherein, intertexture/scrambling, modulation, layer mapping, pretreatment and resource element mapping
The process flow that is related to similar to Fig. 3 of method in introduce accordingly, which is not described herein again.Process flow based on shown in Fig. 4,
In the first data transmission method provided by the embodiments of the present application, it can also include defeated to pre-processing for sending pretreatment output sequence
Sequence carries out precoding out, obtains mapping symbols, sends the mapping symbols.It illustratively, will be in v layers of pretreatment output sequence
Symbol carries out linear transformation, obtains the corresponding mapping symbols of each antenna port, sends its corresponding mapping symbol in each antenna port
Number.Wherein, mapping symbols be can be in the data that antenna port is sent, or after treatment can be in antenna port
The data sent can also be known as other title, and the application is with no restrictions.Again illustratively, allocating pre-coding matrix,
It is multiplied by pre-processing the symbol in output sequence for v layers with pre-coding matrix, obtains the corresponding mapping symbols of each antenna port.
In the embodiment of the present application, sending waveform is that DFT-s-OFDM can also be described as carrying out in sending process flow
DFT or enabled DFT, process flow as shown in Figure 3；Sending waveform is that CP-OFDM can also be described as sending processing stream
DFT, process flow as shown in Figure 4 are enabled in journey without DFT or not.Wherein, DFT is for transforming from the time domain to data
Frequency domain can also be known as transformation precoding (transform precoding) or other titles, and the application is with no restrictions.
Fig. 5 show second of data transmission method provided by the embodiments of the present application, as shown in figure 5, transmitting terminal is according to pre-
It handles input bit and pre-processes input bit and pre-process the mapping relations between output sequence, determine pretreatment output sequence,
Pretreatment output sequence is mapped to v layers, layer mapping output symbol is obtained, sends layer and map output symbol.Wherein, v is positive whole
Number.
Pre-processing input bit can be x bit, and the combination value of the x bit can be any in M value
It is a.Mapping relations between pretreatment input bit and pretreatment output sequence can be described as the M value and M pretreatment is defeated
Mapping relations between sequence out.Wherein, x and M is positive integer, includes positive integer symbol in a pretreatment output sequence, shows
Example property, it include at least two symbol in a pretreatment output sequence.Illustratively, in different pretreatment output sequences
Symbol numbers can be identical, and the symbol numbers in different pretreatment output sequences can also be different.This M pretreatment exports sequence
Column are included in the first pretreatment code book, can also be described as including this M pretreatment output sequence in the first pretreatment code book.
First pretreatment code book is included in pretreatment codebook set, and can also be described as pre-processing in codebook set includes the first pre- place
Manage code book.
Illustratively, by taking x is equal to 1 as an example, the mapping relations for pre-processing input bit and pre-processing between output sequence can be with
It is described by table 4.As shown in table 4, the combination value of every 1 pretreatment input bit can be any of 2 values, should
2 values are respectively b1 and b2, illustratively, b1=1, b2=-1.The corresponding pretreatment output sequence of 2 values such as table 3
Shown in.For 1 bit in pretreatment input symbol, when the value of the bit is b1, determine that its corresponding pretreatment is defeated
Sequence is outWherein,When the value of the symbol is b2, determine that its is corresponding
Pre-processing output sequence isWherein,Wherein, wherein k is positive integer,WithFor plural number, i=0,1 ..., k-1.
In the embodiment of the present application, different methods or the pretreatment output sequence in different technical solutions, pre- place
Reason code book and pretreatment codebook set can be independently arranged, i.e., pretreatment output sequence in different data transmission methods, pre-
Processing code book and pretreatment codebook set can be the same or different, and the application is with no restrictions.Further, in the application reality
It applies in example, in different methods or different technical solutions, the value of identical technical characteristic can be the same or different, this
Application is with no restrictions.
Table 4
Illustratively, by taking x is equal to 2 as an example, the mapping relations for pre-processing input bit and pre-processing between output sequence can be with
It is described by table 5.As shown in table 5, the combination value of every 2 pretreatments input bit can be any one of 4 values,
4 values are respectively [b1, b1], [b1, b2], [b2, b2] and [b2, b1].Illustratively, b1=1, b2=-1.This 4 take
It is as shown in table 4 to be worth corresponding pretreatment output sequence.For 2 bits in pretreatment input symbol, when first bit
Value when be the value of b1 and second bit being b1, determine that its corresponding pretreatment output sequence isWherein,When the value that the value of first bit is b1 and second bit is b2, really
Determining its corresponding pretreatment output sequence isWherein,When first bit
Value is the value of b2 and second bit when being b2, determines that its corresponding pretreatment output sequence isWherein,When the value that the value of first bit is b2 and second bit is b1, really
Determining its corresponding pretreatment output sequence isWherein,Wherein, k is positive whole
Number,WithFor plural number, i=0,1 ..., k-1.
Table 5
In the embodiment of the present application, transmitting terminal will pre-process output sequence when mapping to v layer, with a pretreatment output sequence
The symbol for including in column is a map unit, and the pretreatment output symbol pre-processed in output sequence is mapped to v layers.Its
In, it is that a map unit can also be described as to pre-process output sequence that the symbol for including in output sequence is pre-processed with one
For map unit.
By second of data transmission method provided by the embodiments of the present application, configuration pretreatment input bit and pretreatment are defeated
Mapping relations between sequence out, the mapping relations can introduce more low relevant pretreatments without being limited to linear relationship
Output sequence, so as to introduce more low relevant pretreatment code books.When pre-processing code book for different UE separate configurations
When, UE multiplexing number can be increased, while low interference between meeting UE so as to improve system transfer rate.
In second of data transmission method provided by the embodiments of the present application, transmitting terminal can be used waveform and send pretreatment
Output sequence.
If transmitting terminal sends data to be sent using DFT-s-OFDM, transmitting terminal sending layer mapping symbols may be used also
To include carrying out DFT transform to layer mapping symbols, frequency domain symbol is obtained, the frequency domain symbol is sent.If transmitting terminal uses DFT-
S-OFDM sends data to be sent, and process flow shown in fig. 6 can be used and handle input data.Fig. 6 institute
It may include intertexture/scrambling, pretreatment, layer mapping and DFT in the process flow shown, can also include precoding and resource element
Mapping.As shown in fig. 6, input data can be Q code word, a code word in the Q code word be can be to one group of input ratio
Spy carries out the data block obtained after forward error correction coding.Intertexture/scrambling, spatial domain precoding are similar with resource element mapping method
It is introduced accordingly in the process flow that Fig. 3 is related to, which is not described herein again.
Scrambler bits are pre-processed, pretreatment output sequence is obtained.The preprocess method mentions for the embodiment of the present application
The preprocess method in second of data transmission method supplied.Illustratively, to the corresponding scrambler bits of each code word, with the scrambling
Bit is as pretreatment input bit, according between pretreatment input bit and pretreatment input bit and pretreatment output sequence
Mapping relations determine the corresponding pretreatment output sequence of the code word.
Pretreatment output sequence is mapped to v layers, obtains a layer mapping symbols.This layer of mapping method mentions for the embodiment of the present application
The layer mapping method in second of data transmission method supplied.Specifically, pretreatment output sequence corresponding for each code word, with
The symbol for including in one pretreatment output sequence is a map unit, will pre-process the pretreatment in output sequence and exports symbol
Number carry out floor mapping.Wherein, it is that a map unit can also be described as that the symbol for including in output sequence is pre-processed with one
To pre-process output sequence as map unit.Layer mapping method in second of data transmission method can also be described as to locate in advance
Managing output sequence is that granularity carries out layer mapping.
It illustratively, is 1 with code word number, the corresponding one group of scrambler bits of the code word are one group of pretreatment input bit B(0)For, wherein The pretreatment input in input bit is pre-processed for the group
The number of bit.For the pretreatment input bit in group pretreatment input bit, transmitting terminal is according to pretreatment input bit
Mapping relations between pretreatment input bit and pretreatment output sequence determine pretreatment output sequence, obtain one group and locate in advance
Manage output sequence E(0), wherein The pre- place in output sequence is pre-processed for the group
Manage the number of output sequence.The symbol for including in each pretreatment output sequence of output sequence is pre-processed according to the group, is somebody's turn to do
The corresponding one group of pretreatment output symbol S of group pretreatment output sequence(0).Illustratively, by each of group pretreatment output sequence
The symbol combination for including in pretreatment output sequence obtains the corresponding one group of pretreatment output of group pretreatment output sequence
Symbol S(0).Wherein, For S(0)In pretreatment output symbol number.
Illustratively, s(0)It (i) is E(0)In one pretreatment output sequence in symbol, i be 0 toAny of it is whole
Number.Illustratively, if E(0)In include k in each pretreatment output sequence(0)A symbol, then6 institute of table
It is shown as S(0)It maps to v layers and obtains the example of layer mapping output symbol.As shown in table 6, transmitting terminal is with k(0)A symbol is one
Map unit, by S(0)In pretreatment output symbol map to v layers.Specifically:
When v is equal to 1, with k(0)A symbol is a map unit, by S(0)In pretreatment output symbol map to 1
Layer obtains 1 mapping symbols layer by layer, this includes in mapping symbols layer by layerA map unit, this layer by layer in mapping symbols
ik(0)The value c of+j symbols(0)(ik(0)+ j) it is equal to S(0)In the i-th k(0)+ j value s(0)(ik(0)+ j), wherein i and j is whole
Number,J=0,1 ..., k(0)- 1,
When v is equal to 2, with k(0)A symbol is a map unit, by S(0)In pretreatment output symbol map to 2
Layer obtains 2 mapping symbols layer by layer, per mapping symbols layer by layer in includeA map unit, the 1st layer by layer in mapping symbols
I-th k(0)The value c of+j symbols(0)(ik(0)+ j) it is equal to S(0)In 2ik(0)+ j value s(0)(2ik(0)+ j), the 2nd maps layer by layer
The i-th k in symbol(0)The value c of+j symbols(1)(ik(0)+ j) it is equal to S(0)In 2ik(0)+k(0)+ j value s(0)(2ik(0)+k(0)+ j), wherein i and j is integer,J=0,1 ..., k(0)- 1,
When v is equal to 3, with k(0)A symbol is a map unit, by S(0)In pretreatment output symbol map to 3
Layer obtains 3 mapping symbols layer by layer, per mapping symbols layer by layer in includeA map unit, the 1st layer by layer in mapping symbols
I-th k(0)The value c of+j symbols(0)(ik(0)+ j) it is equal to S(0)In 3ik(0)+ j value s(0)(3ik(0)+ j), the 2nd maps layer by layer
The i-th k in symbol(0)The value c of+j symbols(1)(ik(0)+ j) it is equal to S(0)In 3ik(0)+k(0)+ j value s(0)(3ik(0)+k(0)+ j), the 3rd the i-th k in mapping symbols layer by layer(0)The value c of+j symbols(2)(ik(0)+ j) it is equal to S(0)In 3ik(0)+2k(0)
+ j value s(0)(3ik(0)+2k(0)+ j), wherein i and j is integer,J=0,1 ..., k(0)- 1,
When v is equal to 4, with k(0)A symbol is a map unit, by S(0)In pretreatment output symbol map to 4
Layer obtains 4 mapping symbols layer by layer, per mapping symbols layer by layer in includeA map unit, the 1st layer by layer in mapping symbols
I-th k(0)The value c of+j symbols(0)(ik(0)+ j) it is equal to S(0)In 4ik(0)+ j value s(0)(4ik(0)+ j), the 2nd maps layer by layer
The i-th k in symbol(0)The value c of+j symbols(1)(ik(0)+ j) it is equal to S(0)In 4ik(0)+k(0)+ j value s(0)(4ik(0)+k(0)+ j), the 3rd the i-th k in mapping symbols layer by layer(0)The value c of+j symbols(2)(ik(0)+ j) it is equal to S(0)In 4ik(0)+2k(0)
+ j value s(0)(4ik(0)+2k(0)+ j), the 4th the i-th k in mapping symbols layer by layer(0)The value c of+j symbols(3)(ik(0)+ j) it is equal to S(0)In 4ik(0)+3k(0)+ j value s(0)(4ik(0)+3k(0)+ j), wherein i and j is integer,j
=0,1 ..., k(0)- 1,
Table 6
It illustratively, is 2 with code word number, the corresponding 2 groups of scrambler bits of 2 code words are respectively to pre-process input bit
B(0)And B(1)For, wherein For B(0)In pretreatment input bit number,For B(1)In pretreatment input bit number.For B(0)And B(1)In
Input bit is pre-processed, transmitting terminal is according to pretreatment input bit and pre-processes reflecting between input bit and pretreatment output sequence
Relationship is penetrated, determines pretreatment output sequence.
Corresponding to B(0), one group of pretreatment output sequence E of transmitting terminal acquisition(0), wherein The number of the pretreatment output sequence in output sequence is pre-processed for the group.The each pre- of output sequence is pre-processed according to the group
The symbol for including in processing output sequence obtains the corresponding one group of pretreatment output symbol S of group pretreatment output sequence(0).Show
Example property, it is pre- to obtain the group for the symbol combination that will include in each pretreatment output sequence of group pretreatment output sequence
Handle the corresponding one group of pretreatment output symbol S of output sequence(0).Wherein, For S(0)In pretreatment output symbol number.Illustratively, s(0)It (i) is E(0)In a pretreatment export sequence
Symbol in column, i be 0 toAny of integer.Illustratively, if E(0)In in each pretreatment output sequence
Including k(0)A symbol, then
Corresponding to B(1), one group of pretreatment output sequence E of transmitting terminal acquisition(1), wherein The number of the pretreatment output sequence in output sequence is pre-processed for the group.The each pre- of output sequence is pre-processed according to the group
The symbol for including in processing output sequence obtains the corresponding one group of pretreatment output symbol S of group pretreatment output sequence(1).Show
Example property, it is pre- to obtain the group for the symbol combination that will include in each pretreatment output sequence of group pretreatment output sequence
Handle the corresponding one group of pretreatment output symbol S of output sequence(1).Wherein, For S(1)In pretreatment output symbol number.Illustratively, s(1)It (i) is E(1)In a pretreatment export sequence
Symbol in column, i be 0 toAny of integer.Illustratively, if E(1)In in each pretreatment output sequence
Including k(1)A symbol, then
With k(0)=k(1)For=k, table 7 is shown S(0)And S(1)It maps to v layers and obtains showing for layer mapping output symbol
Example.As shown in table 7, transmitting terminal with k symbol be a map unit, by S(0)And S(1)In pretreatment output symbol map to
V layers, obtain v mapping symbols layer by layer.The n-th layer layer mapping symbols in mapping symbols are c to the v layer by layer(n-1), the value of n is 1 to v.
When v is equal to 2, with k symbol for a map unit, by S(0)And S(1)In pretreatment output symbol map to
2 layers, obtain 2 mapping symbols layer by layer, per mapping symbols layer by layer in includeA map unit.1st layer by layer in mapping symbols
The value c of i-th k+j symbol(0)(ik+j) it is equal to S(0)In i-th k+j value s(0)(ik+j), the 2nd layer by layer in mapping symbols
The value c of ik+j symbol(1)(ik+j) it is equal to S(1)In i-th k+j value s(1)(ik+j), wherein i and j is integer,J=0,1 ..., k-1,
When v is equal to 3, with k symbol for a map unit, by S(0)And S(1)In pretreatment output symbol map to
3 layers, obtain 3 mapping symbols layer by layer, per mapping symbols layer by layer in includeA map unit, the 1st layer by layer in mapping symbols
The value c of i-th k+j symbol(0)(ik+j) it is equal to S(0)In i-th k+j value s(0)(ik+j), the 2nd layer by layer in mapping symbols
The value c of ik+j symbol(1)(ik+j) it is equal to S(1)In the 2ik+j value s(1)(2ik+j), the 3rd layer by layer in mapping symbols
The value c of ik+j symbol(2)(ik+j) it is equal to S(1)In the 2ik+k+j value s(1)(2ik+k+j), wherein i and j is integer,J=0,1 ..., k(0)- 1,
When v is equal to 4, with k symbol for a map unit, by S(0)And S(1)In pretreatment output symbol map to
4 layers, obtain 4 mapping symbols layer by layer, per mapping symbols layer by layer in includeA map unit, the 1st layer by layer in mapping symbols
The value c of i-th k+j symbol(0)(ik+j) it is equal to S(0)In i-th k+j value s(0)(2ik+j), the 2nd layer by layer in mapping symbols
The value c of i-th k+j symbol(1)(ik+j) it is equal to S(0)In the 2ik+k+j value s(0)(2ik+k+j), the 3rd mapping symbols layer by layer
In i-th k+j symbol value c(2)(ik+j) it is equal to S(1)In the 2ik+j value s(1)(2ik+j), the 4th mapping symbols layer by layer
In i-th k+j symbol value c(3)(ik+j) it is equal to S(1)In the 2ik+k+j value s(1)(2ik+k+j), wherein i and j are
Integer,J=0,1 ..., k(0)- 1,
Table 7
Send layer mapping symbols.
Sending layer mapping symbols further includes carrying out DFT transform to layer mapping symbols, obtains frequency domain symbol, sends frequency domain symbol
Number.To v, mapping symbols carry out DFT transform layer by layer, can obtain v layers of frequency symbol.
If transmitting terminal sends data to be sent using CP-OFDM, process flow pair shown in Fig. 7 can be used
Input data is handled.It may include intertexture/scrambling, pretreatment, layer mapping in process flow shown in Fig. 7, can also wrap
Include precoding and resource element mapping.Wherein, intertexture/scrambling, pretreatment, layer map Fig. 6 similar with resource element mapping method
It is introduced accordingly in the process flow being related to, which is not described herein again.Based on process flow shown in Fig. 7, in the embodiment of the present application
In second of the data transmission method provided, sending layer mapping symbols can also include carrying out pre- precoding to layer mapping symbols,
Pre-coded symbols are obtained, the pre-coded symbols are sent.Illustratively, will respectively mapping symbols carry out linear transformation layer by layer, obtain each
The corresponding mapping symbols of antenna port send its corresponding mapping symbols in each antenna port.Wherein, mapping symbols be can be
The data that antenna port is sent, or after treatment can be in the data that antenna port is sent, it can be with
Referred to as other title, the application is with no restrictions.Again illustratively, allocating pre-coding matrix, by by v mapping symbols and pre- layer by layer
Encoder matrix is multiplied, and obtains the corresponding mapping symbols of each antenna port.
Fig. 8 show the third data transmission method provided by the embodiments of the present application, as shown in figure 8, transmitting terminal will input
Bit map obtains layer mapping output bit, wherein v is positive integer to v layers.Each layer in output bit is mapped for layer
Bit is exported, transmitting terminal is according to pretreatment input bit and pre-processes input bit and pre-processes the mapping pass between output sequence
System determines pretreatment output sequence, sends pretreatment output sequence.
Each layer of output bit in output bit is mapped for layer, transmitting terminal is defeated using layer output bit as pre-processing
Enter bit, according to pretreatment input bit and pre-processes input bit and pre-process the mapping relations between output sequence, determine pre-
Handle output sequence.Wherein, transmitting terminal is according between pretreatment input bit and pretreatment input bit and pretreatment output sequence
Mapping relations, determine pretreatment output sequence method with phase in second of data transmission method provided by the embodiments of the present application
The description answered, which is not described herein again.
By the third method provided by the embodiments of the present application, between configuration pretreatment input bit and pretreatment output sequence
Mapping relations, which can introduce more low relevant pretreatment output sequences without being limited to linear relationship,
So as to introduce more low relevant pretreatment code books.When pre-processing code book for different UE separate configurations, Ke Yi
Increase UE multiplexing number while meeting low interference between UE.
In the third method provided by the embodiments of the present application, transmitting terminal can be used waveform and send pretreatment output sequence
Column.
If transmitting terminal sends data to be sent using DFT-s-OFDM, transmitting terminal sends pretreatment output sequence
It can also include that DFT transform is carried out to pretreatment output sequence.Specifically, transmitting terminal is according to pretreatment input symbol and pretreatment
It inputs symbol and pre-processes the mapping relations between output sequence, determine pretreatment output sequence, pretreatment output sequence is carried out
DFT transform obtains frequency domain symbol, sends the frequency domain symbol.If transmitting terminal carries out data to be sent using DFT-s-OFDM
It sends, process flow shown in Fig. 9 can be used, input data is handled.May include in process flow shown in Fig. 9
Intertexture/scrambling, layer mapping, pretreatment and DFT can also include that precoding and resource element map.Wherein, intertexture/scrambling,
It is introduced accordingly in the process flow that DFT, precoding Fig. 3 similar with resource element mapping method are related to, which is not described herein again.
When layer mapping, layer mapping is carried out to scrambler bits, obtains layer mapping output bit.
It illustratively, is 1 with code word number, the corresponding one group of scrambler bits of the code word are D(0)For, wherein For the bit number in this group of scrambler bits.Table 8 is shown D(0)It maps to
V layers obtain the example of layer mapping output bit.It is as shown in table 8:
When v is equal to 1, by D(0)In scrambler bits map to 1 layer, obtain 1 layer by layer mapping output bit, this is reflected layer by layer
Penetrate the value x of i-th of bit in output bit(0)(i) it is equal to D(0)In i-th of value d(0)(i), wherein
When v is equal to 2, by D(0)In scrambler bits map to 2 layers, obtain 2 layer by layer mapping output bits, the 1st reflects layer by layer
Penetrate the value x of i-th of bit in output bit(0)(i) it is equal to D(0)In the 2i value d(0)(2i), the 2nd ratio of mapping output layer by layer
The value x of i-th of bit in spy(1)(i) it is equal to D(0)In the 2i+1 value d(0)(2i+1), wherein
When v is equal to 3, by D(0)In scrambler bits map to 3 layers, obtain 3 layer by layer mapping output bits, the 1st reflects layer by layer
Penetrate the value x of i-th of bit in output bit(0)(i) it is equal to D(0)In the 3i value d(0)(3i), the 2nd ratio of mapping output layer by layer
The value x of i-th of bit in spy(1)(i) it is equal to D(0)In the 3i+1 value d(0)(3i+1), the 3rd mapping layer by layer export in bit
I-th of bit value x(2)(i) it is equal to D(0)In the 3i+2 value d(0)(3i+2), wherein
When v is equal to 4, by D(0)In scrambler bits map to 4 layers, obtain 4 layer by layer mapping output bits, the 1st reflects layer by layer
Penetrate the value x of i-th of bit in output bit(0)(i) it is equal to D(0)In the 4i value d(0)(4i), the 2nd ratio of mapping output layer by layer
The value x of i-th of bit in spy(1)(i) it is equal to D(0)In the 4i+1 value d(0)(4i+1), the 3rd mapping layer by layer export in bit
I-th of bit value x(2)(i) it is equal to D(0)In the 4i+2 value d(0)(4i+2), the in the 4th bit of mapping output layer by layer
The value x of i bit(2)(i) it is equal to D(0)In the 4i+3 value d(0)(4i+3), wherein
Table 8
It illustratively, is 2 with code word number, the corresponding 1st group of scrambler bits of the 1st code word are D(0), the 2nd code word pair
The 2nd group of scrambler bits answered are D(1)For, wherein For the bit number in the 1st group of scrambler bits,For in the 2nd group of scrambler bits
Bit number.Table 9 show by scrambler bits map to v layers obtain layer mapping output bit example.It is as shown in table 9:
When v is equal to 2, by D(0)In scrambler bits map to the 1st layer, obtain the 1st layer by layer mapping output bit, the 1st layer
The value x of i-th of bit in layer mapping output bit(0)(i) it is equal to D(0)In i-th of value d(0)(i), by D(1)In scrambling ratio
Spy maps to the 2nd layer, obtains the 2nd bit of mapping output layer by layer, the value x of i-th of bit in the 2nd layer of mapping output bit(1)
(i) it is equal to D(1)In i-th of value d(1)(i), wherein
When v is equal to 3, by D(0)In scrambler bits map to the 1st layer, obtain the 1st layer by layer mapping output bit, the 1st layer
The value x of i-th of bit in layer mapping output bit(0)(i) it is equal to D(0)In i-th of value d(0)(i), by D(1)In scrambling ratio
Spy maps to layers 2 and 3, obtains layers 2 and 3 layer mapping output bit, and the in the 2nd bit of mapping output layer by layer
The value x of i bit(1)(i) it is equal to D(1)In the 2i value d(1)(2i), the 3rd mapping layer by layer export i-th of bit in bit
Value x(2)(i) it is equal to D(1)In the 2i+1 value d(1)(2i+1), wherein
When v is equal to 4, by D(0)In scrambler bits map to layers 1 and 2, obtain layers 1 and 2 layer mapping
Export bit, the value x of i-th of bit in the 1st bit of mapping output layer by layer(0)(i) it is equal to D(0)In the 2i value d(0)
(2i), the 2nd mapping layer by layer export the value x of i-th of bit in bit(1)(i) it is equal to D(0)In the 2i+1 value d(0)(2i+
1), by D(1)In scrambler bits map to the 3rd layer and the 4th layer, obtain the 3rd layer and the 4th layer by layer mapping output bit, the 3rd layer by layer
The value x of i-th of bit in mapping output bit(2)(i) it is equal to D(1)In the 2i value d(1)(2i), the 4th mapping output layer by layer
The value x of i-th of bit in bit(3)(i) it is equal to D(1)In the 2i+1 value d(1)(2i+1), wherein
Table 9
Output bit is mapped to layer to pre-process.Specifically, it is pre-processed respectively to per the bit of mapping output layer by layer.
If transmitting terminal sends data to be sent using CP-OFDM, process flow shown in Fig. 10 can be used
Input data is handled.It may include intertexture/scrambling, layer mapping and pretreatment in process flow shown in Fig. 10, may be used also
To include spatial domain coding and resource element mapping.Wherein, intertexture/scrambling, layer map what Fig. 9 similar with preprocess method was related to
It is introduced accordingly in process flow, which is not described herein again.In the process flow that precoding Fig. 4 similar with resource element mapping is related to
Corresponding to introduce, which is not described herein again.
It can be transmitting terminal by pre-configuration or signal deployment in above-mentioned various methods provided by the embodiments of the present application
Configuration pretreatment code book.It can be transmitting terminal transmission by receiving end when pre-processing code book by signal deployment for transmitting terminal configuration
Signaling, the signaling carry instruction information, are used to indicate the pretreatment code book that receiving end is transmitting terminal configuration；Transmitting terminal receives
The signaling sent is held, the pretreatment code book of the transmitting terminal is determined by the signaling.The pre- place of the transmitting terminal can be used in transmitting terminal
Reason code book is pre-processed.It should be noted that at this point, the transmitting terminal in this method is reception when carrying out the signalling
It holds, the receiving end in this method is transmitting terminal when carrying out the signalling.It wherein, may include pretreatment code book in the signaling
Mark.
Illustratively, the corresponding mark of a pretreatment code book in codebook set is pre-processed, it is pre- which is known as this
Handle the mark of code book.Transmitting terminal receives the signaling that receiving end is sent, and includes the mark of pretreatment code book, transmitting terminal in the signaling
Using the corresponding pretreatment code book of the mark as the pretreatment code book of the transmitting terminal.
When using this method, illustratively, receiving end is base station, transmitting terminal UE；Receiving end is the first UE, and transmitting terminal is
2nd UE；Or receiving end is first base station, transmitting terminal is the second base station.
In the method, correspond to each space layer, code book can be pre-processed for transmitting terminal separate configurations.For multiple antennas system
System, transmitting terminal and receiving end can use multiple transmission antennas and receiving antenna respectively, and so as to form multiple spaces, this is more
A space can carry out space division multiplexing.Illustratively, multiple space can each corresponding a interface-free resources, can be simultaneously at this
More parts of interface-free resources carry out data transmission.Wherein, which can correspond to identical frequency resource.Utilize spatial division multiplexing
When with technology, the data flow of high-speed is divided into the sub-data flow of multiple low rates, different sub-data flows in transmitting terminal
Launch in same frequency resources on different transmission antennas.Here each sub-data flow is also known as a space layer,
Or spatial sub-channel.When therefore, using space division multiplexing technology, in addition to time-domain dimension and frequency domain dimension, and airspace dimension is increased
Degree, enables the signal of different spaces layer to be mutually distinguishable, so as to increase system transfer rate.
In above-mentioned various methods provided by the embodiments of the present application, transmitting terminal can determine pretreatment code book, pre- using this
Processing code book is pre-processed accordingly, is sent signaling to receiving end, is indicated its pretreatment code book used by the signaling.Its
In, it may include the mark for pre-processing code book in the signaling.
Illustratively, the corresponding mark of a pretreatment code book in codebook set is pre-processed, it is pre- which is known as this
Handle the mark of code book.Transmitting terminal sends signaling to receiving end, includes the mark of pretreatment code book in the signaling, receiving end is with this
Identify pretreatment code book of the corresponding pretreatment code book as the transmitting terminal.
When using this method, illustratively, receiving end is base station, transmitting terminal UE；Receiving end is the first UE, and transmitting terminal is
2nd UE；Or receiving end is first base station, transmitting terminal is the second base station.
In the method, correspond to each space layer, transmitting terminal can be independently determined pretreatment code book for each space layer, to connecing
Receiving end sends signaling, indicates the corresponding pretreatment code book of each space layer by the signaling.
In above-mentioned various methods provided by the embodiments of the present application, transmitting terminal can determine pretreatment code according to waveform is sent
This set.If transmission waveform is first waveform, transmitting terminal determines that pretreatment codebook set is the first pretreatment codebook set；Such as
It is the second waveform that fruit, which sends waveform, and transmitting terminal determines that pretreatment codebook set is the second pretreatment codebook set；First pretreatment
Codebook set and the second pretreatment codebook set are different.First pretreatment codebook set and the second pretreatment codebook set difference are also
Can be described as: at least one of first pretreatment codebook set pretreatment code book is not included in the second pretreatment codebook set
In and/or second pretreatment at least one of codebook set pretreatment code book not included in the first pretreatment codebook set.
For improve data transfer efficiency, difference sends requirement difference of the waveform to the data of transmission, and therefore, transmitting terminal is based on send wave
Shape determines pretreatment codebook set, can satisfy and sends waveform to sent the requirement of data, so that improve data transfer is imitated
Rate.Illustratively, if transmission waveform is DFT-s-OFDM, including in pretreatment codebook set can permanent mould code book；If hair
Sending waveform is CP-OFDM, and pre-processing includes sparse code book in codebook set.
For a sequence in permanent mould code book, the mould of each symbol in the sequence is identical.Illustratively, with a symbol
For a+jb, the mould of the symbol isWherein, j is imaginary unit, and a and b are real number.For in sparse code book
One sequence, the value of several symbols in the sequence are 0.DFT-s-OFDM requires the data itself sent to have lower peak equal
Power ratio (peak-to-average power ratio, PAPR), permanent mould code book can have low PAPR.Have when sending signal
When having lower PAPR, the output power of power amplifier can be bigger, more efficient, is conducive to the covering for improving network.CP-
OFDM requires have lower correlation between the data sent, and correlation is low between the code book of sparse code book.The low code book of correlation
The interference between UE is advantageously reduced, UE multiplexing number can be increased, so as to improve system transfer rate.
It can be that transmitting terminal sends signaling by receiving end, which carries waveform instruction in the first possible realization
Information is used to indicate the transmission waveform that receiving end is transmitting terminal configuration；Transmitting terminal receives the signaling that receiving end is sent, and passes through the letter
It enables and determines transmission waveform.It should be noted that at this point, the transmitting terminal in this method is receiving end when carrying out the signalling,
Receiving end in this method is transmitting terminal when carrying out the signalling.It wherein, may include the mark for sending waveform in the signaling
Know.
Illustratively, the send wave can be known as with corresponding the mark of the transmission waveform sent in waveform, the mark
The mark of shape.Receiving end sends signaling to transmitting terminal, includes the mark for sending waveform in the signaling, the mark can be used in transmitting terminal
Know corresponding transmission waveform and sends data.
In this implementation, correspond to each space layer, waveform can be sent for transmitting terminal separate configurations.
In second of possible realization, transmitting terminal can determine transmission waveform, send signaling to receiving end, pass through the letter
Enable the transmission waveform for indicating that it is used.Wherein, which can be used for transmitting terminal transmission data, may include in the signaling
Send the mark of waveform.
Illustratively, the send wave can be known as with corresponding the mark of the transmission waveform sent in waveform, the mark
The mark of shape.Transmitting terminal sends signaling to receiving end, includes the mark for sending waveform in the signaling, the mark can be used in receiving end
Know corresponding transmission waveform and sends data.
In this implementation, correspond to each space layer, transmitting terminal can be independently determined transmission waveform for each space layer, to reception
End sends signaling, indicates the corresponding transmission waveform of each space layer by the signaling.
When using this method, illustratively, receiving end is base station, transmitting terminal UE；Receiving end is the first UE, and transmitting terminal is
2nd UE；Or receiving end is first base station, transmitting terminal is the second base station.
In order to increase code book quantity, the embodiment of the present application provides a kind of method for generating codebooks, which can be any class
The code book of type, the application is with no restrictions.Illustratively, which can be pretreatment code book or other code books.In the application
It is pretreatment code book with the code book in embodiment, which is to be illustrated for pre-processing method for generating codebooks.
The pretreatment method for generating codebooks are as follows: include R sequence in the first pretreatment code book, the R sequence and second is in advance
The relationship for handling the sequence in code book is linear relationship, wherein R is the integer more than or equal to 1.Illustratively, in the R sequence
Any one sequence can be Si、-Si、SiOr-jSi, sequence SiIt is the sequence in the second pretreatment code book, j is imaginary unit.It should
Not homotactic value in R sequence can be identical or not identical, and the application is with no restrictions.
Illustratively, include 2 sequences in the second pretreatment code book, be denoted as { Sn0,Sn1, then in the first pretreatment code book
Any one sequence can be Sn0、-Sn0、jSn0、-jSn0、Sn1、-Sn1、jSn1Or-jSn1, j is imaginary unit.
Again illustratively, include 4 sequences in the second pretreatment code book, be denoted as { Sn0,Sn1,Sn2,Sn3, then first locates in advance
Any one sequence in reason code book can be Sn0、-Sn0、jSn0、-jSn0、Sn1、-Sn1、jSn1、-jSn1、Sn2、-Sn2、jSn2、-
jSn2、Sn3、-Sn3、jSn3Or-jSn3, j is imaginary unit.
Illustratively, first pretreatment code book can for it is provided by the embodiments of the present application the first to the third data transmit
The pretreatment code book used when being pre-processed in method, can also for it is provided by the embodiments of the present application the first to the third number
According to the code book in the pretreatment codebook set in transmission method.
Again illustratively, second pretreatment code book can for it is provided by the embodiments of the present application the first to the third data pass
The pretreatment code book used when being pre-processed in transmission method, can also for it is provided by the embodiments of the present application the first to the third
The code book in pretreatment codebook set in data transmission method.
Based on pretreatment method for generating codebooks provided by the embodiments of the present application, the embodiment of the present application provides the 4th kind of data
Transmission method.In the 4th kind of data transmission method provided by the embodiments of the present application, transmitting terminal can be based on the above-mentioned first pre- place
Reason code book and/or the second pretreatment code book pre-process input data, obtain pretreatment output sequence, send the pretreatment
Output sequence.
By pretreatment method for generating codebooks provided by the embodiments of the present application, the number of pretreatment code book can be increased, because
This can increase the UE multiplexing number in NOMA system, so as to increase system data rates.Further, the first of generation is pre-
Processing code book can also keep the characteristic of the second pretreatment code book.Wherein, increase pretreatment code book number illustratively, second
When pretreatment code book meets low PAPR, the first pretreatment code book also can satisfy low PAPR.Again illustratively, the second pretreatment code
When meeting low correlation between this preprocessing sequence, also meet low correlation between the preprocessing sequence of the first pretreatment code book.
In above-mentioned embodiment provided by the present application, from the angle of transmitting terminal and receiving end to side provided by the embodiments of the present application
Method is described.In order to realize each function in method provided by the embodiments of the present application, transmitting terminal and receiving end may include
Hardware configuration and/or software module are realized in the form of hardware configuration, software module or hardware configuration add software module
State each function.Some function in above-mentioned each function adds the side of software module with hardware configuration, software module or hardware configuration
Formula executes, specific application and design constraint depending on technical solution.
Figure 11 is the structural schematic diagram of device 1100 provided by the embodiments of the present application.Wherein, device 1100 can be transmission
End, can be realized the function of transmitting terminal in the first data transmission method provided by the embodiments of the present application；Device 1100 can also be with
It is the device in transmitting terminal, which can support transmitting terminal to realize the first data transmission method provided by the embodiments of the present application
The function of middle transmitting terminal.Device 1100 can be hardware configuration, software module or hardware configuration and add software module.Device 1100
It can be realized by chip system.In the embodiment of the present application, chip system can be made of chip, also may include chip and other
Discrete device.
As shown in Figure 11, device 1100 includes preprocessing module 1102 and transceiver module 1104, preprocessing module 1102
It is coupled with transceiver module 1104.Coupling in the embodiment of the present application is the INDIRECT COUPLING or communication between device, unit or module
Connection can be electrical property, mechanical or other forms, for the information exchange between device, unit or module.
Preprocessing module 1102 is used to pre-process pretreatment input symbol, obtains pretreatment output sequence.Wherein,
It is described accordingly in the method that preprocess method is related to Fig. 2, which is not described herein again.Pre-processing output sequence is the first pretreatment
Sequence in code book, preprocessing module 1102 are also used to according to the determining pretreatment codebook set of waveform is sent, and first pre-processes code
This is the code book in pretreatment codebook set.Wherein, the method for pretreatment codebook set is determined and for the according to sending waveform
The description of one pretreatment code book with describing accordingly in method provided by the embodiments of the present application, and which is not described herein again.
Transceiver module 1104 is for sending pretreatment output sequence.When sending waveform is DFT-s-OFDM, device 1100
Further include DFT block 1106, for carrying out DFT transform to pretreatment output sequence, obtains frequency domain symbol, transceiver module 1104 has
Body is for sending the frequency domain symbol.Wherein, it is described accordingly in the method that DFT transform method is related to Fig. 3, it is no longer superfluous here
It states.DFT block 1106 can be coupled with transceiver module 1104, and DFT block 1106 can also be coupled with preprocessing module 1102.Such as
Fruit device 1100 is chip, and transceiver module 1104 can be for the communication interface between chip and external device (ED), wherein this is outer
Part device can be circuit, device or other devices.
Transceiver module 1104 can be also used for receiving control information, and controlling in information includes modulation system mark, code book rope
Draw and at least one in shape information.If controlling in information includes that modulation system identifies, preprocessing module is also used to according to tune
Mode processed identifies the mapping relations determined between pretreatment input symbol and pretreatment output sequence.If controlling includes code in information
This index, preprocessing module are also used to be used to from pretreatment codebook set determine the first pretreatment code book according to code book index.
If controlling includes shape information in information, preprocessing module is also used to basis and is also used to determine send wave according to shape information
Shape.
Figure 12 is the structural schematic diagram of device 1200 provided by the embodiments of the present application.Wherein, device 1200 can be transmission
End, can be realized the function of transmitting terminal in second of data transmission method provided by the embodiments of the present application；Device 1200 can also be with
It is the device in transmitting terminal, which can support transmitting terminal to realize second of data transmission method provided by the embodiments of the present application
The function of middle transmitting terminal.Device 1200 can be hardware configuration, software module or hardware configuration and add software module.Device 1200
It can be realized by chip system.
As shown in Figure 12, device 1200 includes preprocessing module 1202, layer mapping block 1204 and transceiver module 1206,
Preprocessing module 1202 and layer mapping block 1204 couple, and preprocessing module 1202 and transceiver module 1206 couple.
Preprocessing module 1202 is used to pre-process pretreatment input bit, obtains pretreatment output sequence.Wherein,
It is described accordingly in the method that preprocess method is related to Fig. 5, which is not described herein again.Pre-processing output sequence is the first pretreatment
Sequence in code book, preprocessing module 1202 are also used to according to the determining pretreatment codebook set of waveform is sent, and first pre-processes code
This is the code book in pretreatment codebook set.Wherein, the method for pretreatment codebook set is determined and for the according to sending waveform
The description of one pretreatment code book with describing accordingly in method provided by the embodiments of the present application, and which is not described herein again.
Layer mapping block 1204 maps to v layers for that will pre-process output sequence, obtains layer mapping output symbol, wherein v
For positive integer.It is described accordingly in the method that the method for this layer mapping is related to Fig. 5, which is not described herein again.
Transceiver module 1206 is for sending pretreatment output sequence.When sending waveform is DFT-s-OFDM, device 1200
Further include DFT block 1208, for carrying out DFT transform to layer mapping output symbol, obtains frequency domain symbol, transceiver module 1206 has
Body is for sending the frequency domain symbol.Wherein, it is described accordingly in the method that DFT transform method is related to Fig. 5, it is no longer superfluous here
It states.DFT block 1208 can be coupled with transceiver module 1206, and DFT block 1208 can also be coupled with preprocessing module 1202.Such as
Fruit device 1200 is chip, and transceiver module 1206 can be for the communication interface between chip and external device (ED), wherein this is outer
Part device can be circuit, device or other devices.
Transceiver module 1206 can be also used for receiving control information, and controlling in information includes in code book index and shape information
At least one.If controlling includes code book index in information, preprocessing module is also used to be used for according to code book index from pretreatment
The first pretreatment code book is determined in codebook set.If controlling includes shape information in information, preprocessing module is also used to basis
It is also used to be determined according to shape information and sends waveform.
Figure 13 is the structural schematic diagram of device 1300 provided by the embodiments of the present application.Wherein, device 1300 can be transmission
End, can be realized the function of transmitting terminal in the third data transmission method provided by the embodiments of the present application；Device 1300 can also be with
It is the device in transmitting terminal, which can support transmitting terminal to realize the third data transmission method provided by the embodiments of the present application
The function of middle transmitting terminal.Device 1300 can be hardware configuration, software module or hardware configuration and add software module.Device 1300
It can be realized by chip system.
As shown in Figure 13, device 1300 includes preprocessing module 1302, layer mapping block 1304 and transceiver module 1306,
Preprocessing module 1302 and layer mapping block 1304 couple, and preprocessing module 1302 and transceiver module 1306 couple.
Layer mapping block 1304 is used to input bit mapping to v layers, obtains layer mapping output bit, wherein v is positive whole
Number.
Preprocessing module 1302 is used to map layer each layer of output bit in output bit, inputs ratio according to pretreatment
Mapping relations between special and pretreatment input bit and pretreatment output sequence determine pretreatment output sequence.Wherein, it pre-processes
It is described accordingly in the method that method is related to Fig. 8, which is not described herein again.Pre-processing output sequence is in the first pretreatment code book
Sequence, preprocessing module 1302 be also used to according to send waveform determine pretreatment codebook set, first pretreatment code book be pre-
Handle the code book in codebook set.Wherein, according to the same the embodiment of the present application of method for sending the determining pretreatment codebook set of waveform
It is described accordingly in the method for offer, which is not described herein again.
Transceiver module 1306 is the same as transceiver module 1104.When sending waveform is DFT-s-OFDM, device 1300 further includes DFT
Module 1308, DFT block 1308 is the same as DFT block 1106.
Figure 14 is the structural schematic diagram of device 1400 provided by the embodiments of the present application.Wherein, device 1400 can be transmission
End, can be realized the function of transmitting terminal in method provided by the embodiments of the present application；Device 1400 is also possible to the dress in transmitting terminal
It sets, which can support transmitting terminal to realize the function of transmitting terminal in method provided by the embodiments of the present application.
As shown in Figure 14, device 1400 includes processing system 1402, for realizing or for support transmitting terminal to realize
The function of transmitting terminal in the embodiment of the present application providing method.Processing system 1402 can be a kind of circuit, which can be by core
Piece system is realized.Processing system 1402 includes at least one processor 1422, be can be used to implement or for supporting transmitting terminal
Realize the function of transmitting terminal in method provided by the embodiments of the present application.When including its in addition to processor in processing system 1402
When its device, processor 1422 can be also used for the other devices for including in management processing system 1402, and illustratively, this is other
Device may be at least one in following memories 1424, bus 1426 and bus interface 1428.In the embodiment of the present application, processing
Device can be central processing unit (central processing unit, CPU), general processor network processing unit (network
Processor, NP), digital signal processor (digital signal processing, DSP), microprocessor, microcontroller
Device, programmable logic device (programmable logic device, PLD) or their any combination.
Processing system 1402 is also possible that memory 1424, for storing program instruction and/or data.If processing system
System 1402 includes memory 1424, and processor 1422 can be coupled with memory 1424.In the embodiment of the present application, memory includes
Volatile memory (volatile memory), such as random access memory (random-access memory, RAM)；It deposits
Reservoir also may include nonvolatile memory (non-volatile memory), such as flash memory (flash
Memory), hard disk (hard disk drive, HDD) or solid state hard disk (solid-state drive, SSD)；Memory may be used also
With include mentioned kind memory combination.
Processor 1422 can be with 1424 cooperating of memory.Processor 1422 can execute to be stored in memory 1424
Program instruction.When processor 1422 executes the program instruction stored in memory 1424, it may be implemented or support to send
Realize the function of transmitting terminal in method provided by the embodiments of the present application in end.Processor 1422 is also possible to read in memory 1424 and deposit
The data of storage.Memory 1424 is also possible to the data obtained when storage processor 1422 executes program instructions.
When processor is realized or transmitting terminal is supported to realize in the first data transmission method provided by the embodiments of the present application
When the function of transmitting terminal, processor 1422 can be according to pretreatment input symbol and pretreatment input symbol and pretreatment output sequence
Mapping relations between column determine pretreatment output sequence；Send the pretreatment output sequence.
When processor 1422 is realized or transmitting terminal is supported to realize second of transmission side data provided by the embodiments of the present application
In method when the function of transmitting terminal, processor 1422 can be defeated according to pretreatment input bit and pretreatment input bit and pretreatment
Mapping relations between sequence out determine pretreatment output sequence, and pretreatment output sequence is mapped to v layers, it is defeated to obtain layer mapping
Symbol out sends the layer mapping output symbol.Wherein, v is positive integer.
When processor 1422 is realized or transmitting terminal is supported to realize the third transmission side data provided by the embodiments of the present application
In method when the function of transmitting terminal, input bit can be mapped to v layers by processor 1422, obtain layer mapping output bit, wherein
V is positive integer.Each layer of output bit in output bit is mapped for layer, processor 1422 can input ratio according to pretreatment
Mapping relations between special and pretreatment input bit and pretreatment output sequence determine pretreatment output sequence, send pretreatment
Output sequence.
When processor 1422 is realized or transmitting terminal is supported to realize that the embodiment of the present application provides the 4th kind of data transmission method
When, processor is based on the first pretreatment code book and/or the second pretreatment code book pre-processes input data, is pre-processed
Output sequence sends pretreatment output sequence.It wherein, include R sequence, the R sequence and second in the first pretreatment code book
The relationship of sequence in pretreatment code book is linear relationship, and R is the integer more than or equal to 1.A sequence in the R sequence is
Si、-Si、SiOr-jSi, wherein j is imaginary unit, sequence SiIt is the sequence in the second pretreatment code book.
Processing system 1402 can also include bus interface 1428, for providing connecing between bus 1426 and other devices
Mouthful.
Device 1400 is also possible that transceiver 1406, for being communicated by transmission medium and other communication equipments,
For other devices in device 1400 can be communicated with other communication equipments.Wherein, which may be
Processing system 1402.Illustratively, other devices in device 1400 possibly also with transceiver 1406 and other communication equipments into
Row communication, receives and/or sends corresponding information.It can also be described as, other devices in device 1400 may receive accordingly
Information, wherein the corresponding information is received by transceiver 1406 by transmission medium, which can pass through
Bus interface 1428 or other devices by bus interface 1428 and bus 1426 in transceiver 1406 and device 1400
Between interact；And/or other devices in device 1400 may send corresponding information, wherein the corresponding information by
Transceiver 1406 is sent by transmission medium, which can connect by bus interface 1428 or by bus
Mouth 1428 and bus 1426 interact between other devices in transceiver 1406 and device 1400.
Device 1400 is also possible that user interface 1404, user interface 1404 are connecing between user and device 1400
Mouthful, it is possibly used for user and device 1400 carries out information exchange.Illustratively, user interface 1404 may be keyboard, mouse, show
Show at least one in device, loudspeaker (speaker), microphone and operating stick.
It is above-mentioned mainly to describe a kind of apparatus structure provided by the embodiments of the present application from the angle of device 1400.In the device
In, processing system 1402 include processor 1422, can also include memory 1424, bus 1426 and bus interface 1428 in extremely
It is one few, for realizing method provided by the embodiments of the present application.Processing system 1402 is also in the protection scope of the application.
In the Installation practice of the application, the division of the module of device is a kind of logical function partition, in actual implementation can be with
There is other division mode.For example, each functional module of device can integrate in a module, it is also possible to each function mould
Block individualism can also be integrated in a module with two or more functional modules.
It, can be wholly or partly by software, hardware, firmware or it is any in method provided by the embodiments of the present application
Combination is to realize.When implemented in software, it can entirely or partly realize in the form of a computer program product.The meter
Calculation machine program product includes one or more computer instructions.Load and execute on computers the computer program instructions
When, it entirely or partly generates according to process or function described in the embodiment of the present invention.The computer can be general-purpose computations
Machine, special purpose computer, computer network, the network equipment, user equipment or other programmable devices.The computer instruction can
To store in a computer-readable storage medium, or computer-readable deposit from a computer readable storage medium to another
Storage media transmission, for example, the computer instruction can pass through from a web-site, computer, server or data center
Wired (such as coaxial cable, optical fiber, Digital Subscriber Line (digital subscriber line, DSL)) or wireless (for example, it is red
Outside, wirelessly, microwave etc.) mode transmitted to another web-site, computer, server or data center.The calculating
Machine readable storage medium storing program for executing can be any usable medium or include one or more usable mediums that computer can access
The data storage devices such as integrated server, data center.The usable medium can be magnetic medium (for example, floppy disk, hard
Disk, tape), optical medium (for example, digital video disk (digital video disc, DVD)) or semiconductor medium (example
Such as, SSD) etc..
The above various embodiments is only to illustrate the technical solution of the application, is not used to limit its protection scope.It is all this
Modification, equivalent replacement, improvement for being made on the basis of the technical solution of application etc., should all include the application protection scope it
It is interior.
Claims (14)
1. a kind of data transmission method characterized by comprising
According to pretreatment input symbol and pretreatment input symbol and the mapping relations between output sequence are pre-processed, determine pretreatment
Output sequence；
Send the pretreatment output sequence.
2. the method according to claim 1, wherein the pretreatment output sequence is in the first pretreatment code book
Sequence, the method also includes:
Pretreatment codebook set is determined according to waveform is sent, and the first pretreatment code book is the code pre-processed in codebook set
This.
3. according to the method described in claim 2, it is characterized in that,
If the transmission waveform is that discrete fourier extends orthogonal frequency division multiplexing DFT-s-OFDM, the pretreatment codebook set
For the first pretreatment codebook set；
If the transmission waveform is cyclic prefix orthogonal frequency division multiplexing CP-OFDM, the pretreatment codebook set is second pre-
Handle codebook set；
The first pretreatment codebook set is different with the second pretreatment codebook set.
4. according to the method described in claim 3, it is characterized in that, including permanent mould code in the first pretreatment codebook set
This, includes sparse code book in the second pretreatment codebook set.
5. the method according to any of claim 2 to 4, which is characterized in that the method also includes: receive control letter
Breath, in the control information including it is following at least one:
Code book index, for determining the first pretreatment code book from the pretreatment codebook set；With
Shape information, for determining the transmission waveform.
6. the method according to any of claim 2 to 5, which is characterized in that include R in the first pretreatment code book
The relationship of a sequence, the R sequence and the sequence in the second pretreatment code book is linear relationship, wherein R is more than or equal to 1
Integer.
7. according to the method described in claim 6, it is characterized in that, the R sequence and second pretreatment code book in sequence
Relationship be linear relationship, comprising:
A sequence in the R sequence is Si、-Si、SiOr-jSi, wherein j is imaginary unit, SiIt is the described second pre- place
Manage the sequence in code book.
8. a kind of device characterized by comprising
Preprocessing module, for according to the mapping between pretreatment input symbol and pretreatment input symbol and pretreatment output sequence
Relationship determines pretreatment output sequence；
Transceiver module, for sending the pretreatment output sequence.
9. device according to claim 8, which is characterized in that the pretreatment output sequence is in the first pretreatment code book
Sequence, the preprocessing module be also used to according to send waveform determine pretreatment codebook set, it is described first pretreatment code book
For the code book in pretreatment codebook set.
10. device according to claim 9, which is characterized in that
If the transmission waveform is that discrete fourier extends orthogonal frequency division multiplexing DFT-s-OFDM, the pretreatment codebook set
For the first pretreatment codebook set；
If the transmission waveform is cyclic prefix orthogonal frequency division multiplexing CP-OFDM, the pretreatment codebook set is second pre-
Handle codebook set；
The first pretreatment codebook set is different with the second pretreatment codebook set.
11. device according to claim 10, which is characterized in that include permanent mould code in the first pretreatment codebook set
This, includes sparse code book in the second pretreatment codebook set.
12. the device according to any of claim 9 to 11, which is characterized in that the transceiver module is also used to receive
Control information, in the control information including it is following at least one:
Code book index, for determining the first pretreatment code book from the pretreatment codebook set；With
Shape information, for determining the transmission waveform.
13. the device according to any of claim 9 to 12, which is characterized in that wrapped in the first pretreatment code book
Include R sequence, the relationship of the R sequence and the sequence in the second pretreatment code book is linear relationship, wherein R be greater than etc.
In 1 integer.
14. device according to claim 13, which is characterized in that the sequence in the R sequence and the second pretreatment code book
The relationship of column is linear relationship, comprising:
A sequence in the R sequence is Si、-Si、SiOr-jSi, wherein j is imaginary unit, SiIt is the described second pre- place
Manage the sequence in code book.
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| CN109728840B (en) | 2021-09-03 |
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