CN108989257A - data modulation method, device and storage medium - Google Patents
data modulation method, device and storage medium Download PDFInfo
- Publication number
- CN108989257A CN108989257A CN201710398831.2A CN201710398831A CN108989257A CN 108989257 A CN108989257 A CN 108989257A CN 201710398831 A CN201710398831 A CN 201710398831A CN 108989257 A CN108989257 A CN 108989257A
- Authority
- CN
- China
- Prior art keywords
- data
- edge subband
- continuous
- subcarrier
- sequence
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 46
- 238000003860 storage Methods 0.000 title claims abstract description 13
- 230000005540 biological transmission Effects 0.000 claims abstract description 104
- 238000003892 spreading Methods 0.000 claims abstract description 77
- 230000007480 spreading Effects 0.000 claims abstract description 77
- 238000004590 computer program Methods 0.000 claims description 10
- 230000000694 effects Effects 0.000 abstract description 10
- 238000001228 spectrum Methods 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 13
- 230000002146 bilateral effect Effects 0.000 description 8
- 238000013507 mapping Methods 0.000 description 8
- 230000006870 function Effects 0.000 description 4
- 230000010363 phase shift Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000002401 inhibitory effect Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004422 calculation algorithm Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2626—Arrangements specific to the transmitter only
- H04L27/2627—Modulators
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Transmitters (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a kind of data modulation method, device and storage mediums, which comprises on the edge subband of transmission band, the sequence spreading for being 2N multiplied by length by data to be transmitted, and the data after obtaining 2N extension；Wherein, the sequence spreading is one group per continuous two elements, and the phase difference for organizing interior two elements is zero, and the phase difference of element is zero or π between group；Data after described 2N extension are sent on the continuous 2N subcarrier of the edge subband respectively.Scheme of the present invention can be such that the secondary lobe amplitude between the sub-carrier signal under sequence spreading effect significantly offsets, and achieve the purpose that reduce with external leakage；Also, transmission data are repeated under sequence spreading effect can increase signal-to-noise ratio, to improve demodulation performance.Therefore, technical solution of the present invention can efficiently use the edge subband of transmission band, improve spectrum efficiency.
Description
Technical field
The present invention relates to multi-carrier wireless communication technical field more particularly to a kind of data modulation methods, device and storage
Medium.
Background technique
Long term evolution (LTE, Long Term Evolution) technology is forth generation (4G, Fourth Generation) nothing
Line cellular telecommunication art.LTE system introduces orthogonal frequency division multiplexing (OFDM, Orthogonal Frequency Division
Multiplexing) technology, and OFDM continues in the 5th generation (5G, Fifth Generation) radio honeycomb communication technology
It continues to use.But the band external leakage of LTE system is bigger, therefore the edge of transmission band will often vacate a band frequency as guarantor
Shield interval, to reduce the influence with external leakage to nearby frequency bands.So, transmission band is caused to a certain extent unavoidably
Waste, reduce spectrum utilization efficiency.
Summary of the invention
In view of the above problems, the embodiment of the present invention provides a kind of data modulation method, device to solve the above problems
And storage medium.
According to one aspect of the present invention, a kind of data modulation method is provided, which comprises
On the edge subband of transmission band, the sequence spreading for being 2N multiplied by length by data to be transmitted obtains 2N expansion
Data after exhibition；Wherein, the sequence spreading is one group per continuous two elements, and the phase difference for organizing interior two elements is zero,
The phase difference of element is zero or π between group；
Data after described 2N extension are sent on the continuous 2N subcarrier of the edge subband respectively；Wherein, N
Take positive integer.
Optionally, the N takes 1,2 or 3.
Optionally, when the N takes 1, the sequence spreading includes [C, C]；When the N takes 2, the sequence spreading packet
Include [C, C ,-C ,-C]；When the N takes 3, the sequence spreading includes [C, C ,-C ,-C ,-C ,-C]；Wherein, the C is multiple
Number.
Optionally, when the N takes 2 or 3, the data by after described 2N extension are respectively in the edge subband
It is sent on continuous 2N subcarrier, comprising:
By the data after described 2N extension, successively connect in the edge subband according to the sequence of transmission band ecto-entad
It is sent on 2N continuous subcarrier；
Optionally, the data by after described 2N extension, according to the sequence of transmission band ecto-entad successively in institute
It states and is sent on the continuous 2N subcarrier of edge subband, specifically included:
When the edge subband is the edge subband of transmission band low frequency end, the data after described 2N extension are pressed
It is successively sent on the continuous 2N subcarrier of the edge subband according to the sequence of frequency from low to high；
When the edge subband is the edge subband of transmission band front end, the data after described 2N extension are pressed
It is successively sent on the continuous 2N subcarrier of the edge subband according to the sequence of frequency from high to low.
According to another aspect of the invention, a kind of data modulating device is provided, comprising:
Modulation module, for the edge subband in transmission band, the extension sequence for being 2N multiplied by length by data to be transmitted
Column, the data after obtaining 2N extension；Wherein, the sequence spreading is one group per continuous two elements, organizes interior two elements
Phase difference be zero, the phase difference of element is zero or π between group；
Transmission module, for the data after extending described 2N respectively in the continuous 2N subcarrier of the edge subband
Upper transmission；Wherein, N takes positive integer.
Optionally, the N takes 1,2 or 3.
Optionally, when the N takes 1, the sequence spreading includes [C, C]；When the N takes 2, the sequence spreading packet
Include [C, C ,-C ,-C]；When the N takes 3, the sequence spreading includes [C, C ,-C ,-C ,-C ,-C]；Wherein, the C is multiple
Number.
Optionally, when the N takes 2 or 3, the transmission module, specifically for pressing the data after described 2N extension
It is successively sent on the continuous 2N subcarrier of the edge subband according to the sequence of transmission band ecto-entad.
Optionally, data of the transmission module after extending described 2N, according to the suitable of transmission band ecto-entad
Sequence successively when sending on the continuous 2N subcarrier of the edge subband, specifically includes:
When the edge subband is the edge subband of transmission band low frequency end, the data after described 2N extension are pressed
It is successively sent on the continuous 2N subcarrier of the edge subband according to the sequence of frequency from low to high；
When the edge subband is the edge subband of transmission band front end, the data after described 2N extension are pressed
It is successively sent on the continuous 2N subcarrier of the edge subband according to the sequence of frequency from high to low.
In terms of third according to the present invention, a kind of data modulating device is provided, comprising: memory, processor and storage
On the memory and the data modulation program that can run on the processor, the processor execute the data modulation
The step of data modulation method of the present invention is realized when program.
The 4th aspect according to the present invention, provides a kind of computer readable storage medium, is stored thereon with computer journey
The step of sequence, which realizes data modulation method of the present invention when being executed by processor.
The embodiment of the present invention has the beneficial effect that:
The method of the embodiment of the present invention, device and storage medium, each subcarrier under sequence spreading can be made to act on
Secondary lobe amplitude between data is significantly offset, and achievees the purpose that reduce with external leakage；Also, it is repeated under sequence spreading effect
Signal-to-noise ratio can be increased by sending data, to improve demodulation performance.Therefore, technical solution of the present invention can efficiently use transmission band
Edge subband, improve spectrum efficiency.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention,
And it can be implemented in accordance with the contents of the specification, and in order to allow above and other objects of the present invention, feature and advantage can
It is clearer and more comprehensible, the followings are specific embodiments of the present invention.
Detailed description of the invention
By reading the following detailed description of the preferred embodiment, various other advantages and benefits are common for this field
Technical staff will become clear.The drawings are only for the purpose of illustrating a preferred embodiment, and is not considered as to the present invention
Limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings:
Fig. 1 is a kind of flow chart for data modulation method that first embodiment of the invention provides；
Fig. 2 is a kind of flow chart for data modulation method that second embodiment of the invention provides；
Fig. 3 is mapping schematic diagram of the data after being extended in second embodiment of the invention by [1,1] to subcarrier；
Fig. 4 is the schematic diagram for continuous two subcarriers that second embodiment of the invention sends identical data；
Fig. 5 is a kind of flow chart for data modulation method that third embodiment of the invention provides；
Fig. 6 is that the mapping of data to the subcarrier after being extended in third embodiment of the invention by [1,1, -1, -1] is illustrated
Figure；
Fig. 7 be third embodiment of the invention in it is another by [1,1, -1, -1] extend after data to subcarrier mapping
Schematic diagram；
Fig. 8 is a kind of flow chart for data modulation method that fourth embodiment of the invention provides；
Fig. 9 is data the reflecting to subcarrier after being extended in fourth embodiment of the invention by [1,1, -1, -1, -1, -1]
Penetrate schematic diagram；
Figure 10 is the data by after [1,1, -1, -1, -1, -1] extension another in fourth embodiment of the invention to subcarrier
Mapping schematic diagram；
Figure 11 is a kind of structural block diagram for data modulating device that fifth embodiment of the invention provides；
Figure 12 is a kind of structural block diagram for data modulating device that sixth embodiment of the invention provides.
Specific embodiment
Exemplary embodiments of the present disclosure are described in more detail below with reference to accompanying drawings.Although showing the disclosure in attached drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here
It is limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure
It is fully disclosed to those skilled in the art.
The band external leakage of LTE system is bigger, therefore transmission band edge will often vacate a band frequency as between protection
Every to reduce the influence with external leakage to nearby frequency bands.So, the wave of transmission band is caused to a certain extent unavoidably
Take, reduces spectrum utilization efficiency.For this purpose, the embodiment of the present invention propose a kind of data modulation method, device and computer can
Storage medium is read, makes multicarrier system (referring to the system for having used multiple subcarriers to transmit data, such as ofdm system) can
To efficiently use the edge subband of transmission band, and it can control the influence with external leakage.Below by several specific embodiments pair
Implementation process of the invention is described in detail.
In the first embodiment of the invention, a kind of data modulation method is provided, this method can be applied to transmitting node, described
Transmitting node can be, but not limited to are as follows: base station, terminal, relaying (relay), launch point (transmitting point) etc..
As shown in Figure 1, described method includes following steps:
Step S101, on the edge subband of transmission band, the sequence spreading for being 2N multiplied by length by data to be transmitted is obtained
Data to after 2N extension；Wherein, the sequence spreading is one group per continuous two elements, organizes the phase of interior two elements
Difference is zero, and the phase difference of element is zero or π between group；
Step S102 sends out the data after described 2N extension on the continuous 2N subcarrier of the edge subband respectively
It send.
In the embodiment of the present invention, the edge subband of the transmission band can be the unilateral edge subband of transmission band,
It is also possible to the bilateral edge subband of transmission band.Specifically, when transmission band one end needs to control with external leakage and the other end
When not needing control band external leakage, the edge subband refers to unilateral edge subband, at this point, in control with external leakage side
On edge subband, by data to be transmitted multiplied by sequence spreading；When transmission band both ends require control band external leakage, the side
Edge subband refers to bilateral edge subband, at this point, on the edge subband at transmission band both ends, by data to be transmitted multiplied by extension
Sequence.The edge subband includes p subcarrier, and p is the integer more than or equal to 1.
Further, in the embodiment of the present invention, the data to be transmitted is binary phase shift keying (BPSK, Binary
Phase Shift Keying), quadrature phase shift keying (QPSK, Quadrature Phase Shift Keyin), quadrature amplitude
Digital modulations information such as (QAM, Quadrature Amplitude Modulation) is modulated, other data shapes are also possible to
Formula, the embodiment of the present invention are collectively referred to here in as data to be transmitted.
In the embodiment of the present invention, the sequence spreading per continuous two elements be one group, comprising: the 1st, 2 elements be one
Group, the 3rd, 4 elements be one group, the 5th, 6 element be one group ... ..., 2N-1,2N element be one group.
In the embodiment of the present invention, N takes positive integer.Wherein, N value is bigger, band external leakage inhibitory effect is more preferable, signal-to-noise ratio more
Height, but as the increase of N value also results in data transmission efficiency reduction.So those skilled in the art can be according to specific need
Seek the value for flexibly setting N.In one particular embodiment of the present invention, N is enabled to take 1,2 or 3.
Further, in one particular embodiment of the present invention,
When N takes 1, enabling sequence spreading is [C, C]；
When N takes 2, enabling sequence spreading is [C, C ,-C ,-C]；
When N takes 3, enabling sequence spreading is [C, C ,-C ,-C ,-C ,-C]；
Wherein, C is plural number.
Further, in the embodiment of the present invention, when the N takes 2 or 3, the data point by after described 2N extension
It is not sent on the continuous 2N subcarrier of the edge subband, comprising:
By the data after described 2N extension, successively connect in the edge subband according to the sequence of transmission band ecto-entad
It is sent on 2N continuous subcarrier.
Specifically, by the data after described 2N extension, according to the sequence of transmission band ecto-entad successively on the side
It is sent on the continuous 2N subcarrier of edge subband, comprising:
When the edge subband is the edge subband of transmission band low frequency end, the data after described 2N extension are pressed
It is successively sent on the continuous 2N subcarrier of the edge subband according to the sequence of frequency from low to high；
When the edge subband is the edge subband of transmission band front end, the data after described 2N extension are pressed
It is successively sent on the continuous 2N subcarrier of the edge subband according to the sequence of frequency from high to low.
It is noted that the above-mentioned method and step of the embodiment of the present invention is the processing for any one data to be transmitted
Process when data to be transmitted is multiple, such as currently has K data to be transmitted, and the K is the integer greater than 1, is sent at this time
A kind of mode of data to be transmitted are as follows:
On the edge subband of transmission band, by K data to be transmitted respectively multiplied by sequence spreading, after obtaining the extension of K group
Data (wherein every group have 2N extension after data).With continuous 2N subcarrier for one group, by the number after K group extension
According to being sent on the continuous K group subcarrier of the edge subband respectively.
In summary, the method for the embodiment of the present invention is modulated data to be transmitted using sequence spreading, is adjusted
2N data after system, and this modulated 2N data is sent on continuous 2N subcarrier respectively, in this way, this 2N can be made
Secondary lobe amplitude between a sub-carrier signal is significantly offset, and achievees the purpose that reduce with external leakage；Also, make in sequence spreading
Signal-to-noise ratio can be increased with the lower transmission data that repeat, to improve demodulation performance.Therefore, scheme described in the embodiment of the present invention can have
Effect utilizes the edge subband of transmission band, improves spectrum efficiency.
In second embodiment of the invention, a kind of data modulation method is provided, which is side described in first embodiment
A kind of specific embodiment of method.Specifically, as shown in Fig. 2, described method includes following steps:
Step S201, by data to be transmitted multiplied by sequence spreading [1,1], obtains two on the edge subband of transmission band
Data after a extension；
In the embodiment of the present invention, the edge subband of the transmission band can be the unilateral edge subband of transmission band,
It is also possible to the bilateral edge subband of transmission band.Specifically, in the embodiment of the present invention, when transmission band one end needs to control band
When external leakage and the other end do not need control band external leakage, the edge subband refers to unilateral edge subband, at this point, controlling
On edge subband with external leakage side, by data to be transmitted multiplied by sequence spreading [1,1]；When transmission band both ends require to control
When system band external leakage, the edge subband refers to bilateral edge subband, at this point, on the edge subband at transmission band both ends,
By data to be transmitted multiplied by sequence spreading [1,1].
Step S202 sends out the data after described two extensions on continuous two subcarriers of the edge subband respectively
It send.
In one particular embodiment of the present invention, when there is K data to be transmitted [S1 S2 S3…SK] when, in transmitting pin
On the edge subband of band, K data to be transmitted [S1 S2 S3…SK] respectively multiplied by sequence spreading [1,1], after obtaining the extension of K group
Data [S1 S1]、[S2 S2]…[SK SK].With continuous two subcarriers for one group, the data after K group extension are distinguished
It is sent on the continuous K group subcarrier of the edge subband, i.e. [S1 S1] sent on subcarrier 1,2, [S2 S2] in subcarrier
3, it sends on 4, [S3 S3] [S is sent ... on subcarrier 5,6K SK] sent on subcarrier 2K-1,2K, specifically such as Fig. 3 institute
Show.
The method of the embodiment of the present invention can reduce the band external leakage of edge subband.As shown in figure 4, horizontal axis indicates frequency
Rate, the longitudinal axis indicate amplitude, and horizontal dotted line indicates that amplitude is 0 reference line in figure.After data to be transmitted is multiplied by [1,1] sequence spreading
It being sent in two continuous subcarriers, i.e., subcarrier 1 and subcarrier 2 send identical data, then, the signal of the two subcarriers
Secondary lobe positive and negative can substantially be offset, and achieve the effect that inhibit with external leakage.Also, continuous two subcarriers send identical number
According to maximum 2 times of signal-to-noise ratio can be improved.
In third embodiment of the invention, a kind of data modulation method is provided, which is side described in first embodiment
A kind of specific embodiment of method.Specifically, as shown in figure 5, the described method comprises the following steps:
Step S501, on the edge subband of transmission band, by data to be transmitted multiplied by sequence spreading [1,1, -1, -1],
Data after obtaining four extensions；
In the embodiment of the present invention, the edge subband of the transmission band can be the unilateral edge subband of transmission band,
It is also possible to the bilateral edge subband of transmission band.Specifically, in the embodiment of the present invention, when transmission band one end needs to control band
When external leakage and the other end do not need control band external leakage, the edge subband refers to unilateral edge subband, at this point, controlling
On edge subband with external leakage side, by data to be transmitted multiplied by sequence spreading [1,1, -1, -1]；When transmission band both ends all
When needing to control band external leakage, the edge subband refers to bilateral edge subband, at this point, edge at transmission band both ends
It takes, by data to be transmitted multiplied by sequence spreading [1,1, -1, -1].
Step S502 sends out the data after described four extensions on continuous four subcarriers of the edge subband respectively
It send.
In one particular embodiment of the present invention, on edge subband, data to be transmitted multiplied by sequence spreading [1,1 ,-
1, -1], according to the sequence of transmission band ecto-entad, successively sent on continuous 4 subcarriers.
Specifically, when the low frequency end side of transmission band needs to control band external leakage, on corresponding edge subband to
Data are transmitted multiplied by sequence spreading [1,1, -1, -1], according to the sequence from low frequency to high frequency, successively on continuous 4 subcarriers
It sends；When the front end side of transmission band needs to control band external leakage, the data to be transmitted on corresponding edge subband multiplies
With sequence spreading [1,1, -1, -1], according to the sequence from high frequency to low frequency, successively sent on continuous 4 subcarriers.
In another specific embodiment of the invention, on edge subband, data to be transmitted multiplied by sequence spreading [1,
1, -1, -1], can also successively be sent on continuous 4 subcarriers according to the sequence from low frequency to high frequency.
Specifically, when the low frequency end side of transmission band needs to control band external leakage, on corresponding edge subband to
Data are transmitted multiplied by sequence spreading [1,1, -1, -1], according to the sequence from low frequency to high frequency, successively on continuous 4 subcarriers
It sends；When the front end side of transmission band needs to control band external leakage, the data to be transmitted on corresponding edge subband multiplies
With sequence spreading [1,1, -1, -1], according to the sequence from low frequency to high frequency, successively sent on continuous 4 subcarriers.
In one particular embodiment of the present invention, when there is K data to be transmitted [S1 S2 S3…SK] when, in transmitting pin
On the edge subband of band, K data to be transmitted [S1 S2 S3…SK] respectively multiplied by sequence spreading [1,1, -1, -1], obtain K group
Data [S after extension1 S1 -S1 -S1]、[S2 S2 -S2 -S2]…[SK SK -SK -SK].With continuous four subcarriers for one
Group sends the data after K group extension, i.e. [S on the continuous K group subcarrier of the edge subband respectively1 S1 -S1 -
S1] sent on subcarrier 1,2,3,4, [S2 S2 -S2 -S2] [S is sent ... on subcarrier 5,6,7,8K SK -SK -SK]
It is sent on subcarrier 4K-3,4K-2,4K-1,4K.When the edge subband is the edge subband of transmission band low frequency end, institute
The mapping of data to subcarrier after stating the extension of K group is as shown in Figure 6；When the edge that the edge subband is transmission band front end
When subband, the mapping of data to subcarrier after the K group extension is as shown in Figure 7.
In the embodiment of the present invention, offset similarly with subcarrier secondary lobe described in embodiment two, sequence spreading [1,1, -1, -1]
It is to be achieved the effect that inhibit by the secondary lobe counteracting of 4 continuous subcarrier signals with external leakage, it is outer than the band of sequence spreading [1,1]
It is more preferable to leak inhibitory effect.Also, lower repetition is acted in sequence spreading [1,1, -1, -1] and sends data, can be improved 4 times maximum
Received signal to noise ratio.
In fourth embodiment of the invention, a kind of data modulation method is provided, which is side described in first embodiment
A kind of specific embodiment of method.Specifically, as shown in figure 8, the described method comprises the following steps:
Step S801, on the edge subband of transmission band, by data to be transmitted multiplied by sequence spreading [1,1, -1, -1, -
1, -1], the data after obtaining six extensions；
In the embodiment of the present invention, the edge subband of the transmission band can be the unilateral edge subband of transmission band,
It is also possible to the bilateral edge subband of transmission band.Specifically, in the embodiment of the present invention, when transmission band one end needs to control band
When external leakage and the other end do not need control band external leakage, the edge subband refers to unilateral edge subband, at this point, controlling
On edge subband with external leakage side, by data to be transmitted multiplied by sequence spreading [1,1, -1, -1, -1, -1]；Work as transmission band
When both ends require control band external leakage, the edge subband refers to bilateral edge subband, at this point, at transmission band both ends
On edge subband, by data to be transmitted multiplied by sequence spreading [1,1, -1, -1, -1, -1].
Step S802 sends out the data after described six extensions on continuous six subcarriers of the edge subband respectively
It send.
In embodiments of the present invention, on edge subband, data to be transmitted multiplied by sequence spreading [1,1, -1, -1, -1, -
1], according to the sequence of transmission band ecto-entad, successively sent on continuous 6 subcarriers.
Specifically, when the low frequency end side of transmission band needs to control band external leakage, on corresponding edge subband to
Data are transmitted multiplied by sequence spreading [1,1, -1, -1, -1, -1], according to the sequence from low frequency to high frequency, successively in continuous 6 sons
It is sent on carrier wave；It is to be transmitted on corresponding edge subband when the front end side of transmission band needs to control band external leakage
Data are multiplied by sequence spreading [1,1, -1, -1, -1, -1], according to the sequence from high frequency to low frequency, successively in continuous 6 subcarriers
Upper transmission.
In the embodiment of the present invention, on the edge subband of transmission band, K data to be transmitted [S1 S2 S3…SK] respectively
Data [S multiplied by sequence spreading [1,1, -1, -1, -1, -1], after obtaining the extension of K group1 S1 -S1 -S1 -S1 -S1]、[S2 S2
-S2 -S2 -S2 -S2]…[SK SK -SK -SK -SK -SK].With continuous six subcarriers for one group, after K group extension
Data sent on the continuous K group subcarrier of the edge subband respectively, i.e. [S1 S1 -S1 -S1 -S1 -S1] in subcarrier
1, it sends on 2,3,4,5,6, [S2 S2 -S2 -S2 -S2 -S2] [S is sent ... on subcarrier 7,8,9,10,11,12K SK
-SK -SK -SK -SK] sent on subcarrier 6K-5,6K-6,6K-3,6K-2,6K-1,6K.When the edge subband is transmission
When the edge subband of frequency band low frequency end, the mapping of data to subcarrier after the K group extension is as shown in Figure 9.When the edge
When subband is the edge subband of transmission band front end, the mapping of data to subcarrier after the K group extension is as shown in Figure 10.
In the embodiment of the present invention, offset similarly with subcarrier secondary lobe described in embodiment two, sequence spreading [1,1, -1, -
1, -1, -1] be to achieve the effect that inhibit by the secondary lobe counteracting of 6 continuous subcarrier signals with external leakage, than sequence spreading [1,
1] and the band external leakage inhibitory effect of [1,1, -1, -1] is more preferable.Also, under sequence spreading [1,1, -1, -1, -1, -1] effect
It repeats to send data, maximum 6 times of received signal to noise ratio can be improved.
In fifth embodiment of the invention, a kind of data modulating device is provided, as shown in figure 11, comprising:
Modulation module 1110, for the edge subband in transmission band, the expansion for being 2N multiplied by length by data to be transmitted
Sequence is opened up, the data after obtaining 2N extension；Wherein, the sequence spreading is one group per continuous two elements, two in group
The phase difference of element is zero, and the phase difference of element is zero or π between group；
Transmission module 1120, for the data after described 2N extension are sub at continuous 2N of the edge subband respectively
It is sent on carrier wave；Wherein, N takes positive integer.Optionally, the N takes 1,2 or 3.
In one particular embodiment of the present invention:
When the N takes 1, the sequence spreading includes [C, C]；
When the N takes 2, the sequence spreading includes [C, C ,-C ,-C]；
When the N takes 3, the sequence spreading includes [C, C ,-C ,-C ,-C ,-C]；
Wherein, the C is plural number.
Further, in one particular embodiment of the present invention, when the N takes 2 or 3, transmission module 1120, specifically
It is successively continuous in the edge subband according to the sequence of transmission band ecto-entad for the data after extending described 2N
It is sent on 2N subcarrier.
Wherein, by the data after described 2N extension, according to the sequence of transmission band ecto-entad successively at the edge
It sends, specifically includes on the continuous 2N subcarrier of subband:
When the edge subband is the edge subband of transmission band low frequency end, the data after described 2N extension are pressed
It is successively sent on the continuous 2N subcarrier of the edge subband according to the sequence of frequency from low to high；
When the edge subband is the edge subband of transmission band front end, the data after described 2N extension are pressed
It is successively sent on the continuous 2N subcarrier of the edge subband according to the sequence of frequency from high to low.
In the embodiment of the present invention, the modulation module 1110 and transmission module 1120 can be used as the function of device inner treater
Energy module exists, and algorithm needed for sequence spreading and modulation module and transmission module operation is stored in the memory of device.
In summary, described device of the embodiment of the present invention is modulated data to be transmitted using sequence spreading, is adjusted
2N data after system, and this modulated 2N data is sent on continuous 2N subcarrier respectively, in this way, this 2N can be made
Secondary lobe amplitude between a sub-carrier signal is significantly offset, and achievees the purpose that reduce with external leakage；Also, make in sequence spreading
Signal-to-noise ratio can be increased with the lower transmission data that repeat, to improve demodulation performance.Therefore, scheme described in the embodiment of the present invention can have
Effect utilizes the edge subband of transmission band, improves spectrum efficiency.
In sixth embodiment of the invention, a kind of data modulating device is provided, as shown in figure 12, comprising: memory 1210,
Processor 1220 and it is stored in the computer program that can be run on the memory 1210 and on the processor 1220, it is described
Processor 1220 performs the steps of when executing the computer program
On the edge subband of transmission band, the sequence spreading for being 2N multiplied by length by data to be transmitted obtains 2N expansion
Data after exhibition；Wherein, the sequence spreading is one group per continuous two elements, and the phase difference for organizing interior two elements is zero,
The phase difference of element is zero or π between group；
Data after described 2N extension are sent on the continuous 2N subcarrier of the edge subband respectively；Wherein, N
Take positive integer.Optionally, N takes 1,2 or 3.
In one particular embodiment of the present invention:
When the N takes 1, the sequence spreading includes [C, C]；
When the N takes 2, the sequence spreading includes [C, C ,-C ,-C]；
When the N takes 3, the sequence spreading includes [C, C ,-C ,-C ,-C ,-C]；
Wherein, the C is plural number.
Further, in one particular embodiment of the present invention, described to expand described 2N when the N takes 2 or 3
Data after exhibition are sent on the continuous 2N subcarrier of the edge subband respectively, comprising:
By the data after described 2N extension, successively connect in the edge subband according to the sequence of transmission band ecto-entad
It is sent on 2N continuous subcarrier；
Wherein, by the data after described 2N extension, according to the sequence of transmission band ecto-entad successively at the edge
It sends, specifically includes on the continuous 2N subcarrier of subband:
When the edge subband is the edge subband of transmission band low frequency end, the data after described 2N extension are pressed
It is successively sent on the continuous 2N subcarrier of the edge subband according to the sequence of frequency from low to high；
When the edge subband is the edge subband of transmission band front end, the data after described 2N extension are pressed
It is successively sent on the continuous 2N subcarrier of the edge subband according to the sequence of frequency from high to low.
In summary, described device of the embodiment of the present invention is modulated data to be transmitted using sequence spreading, is adjusted
2N data after system, and this modulated 2N data is sent on continuous 2N subcarrier respectively, in this way, this 2N can be made
Secondary lobe amplitude between a sub-carrier signal is significantly offset, and achievees the purpose that reduce with external leakage；Also, make in sequence spreading
Signal-to-noise ratio can be increased with the lower transmission data that repeat, to improve demodulation performance.Therefore, scheme described in the embodiment of the present invention can have
Effect utilizes the edge subband of transmission band, improves spectrum efficiency.
In the seventh embodiment of the present invention, a kind of computer readable storage medium is provided, is stored thereon with computer journey
Sequence realizes method and step described in first to fourth any one embodiment when the program is executed by processor.
All the embodiments in this specification are described in a progressive manner, same and similar portion between each embodiment
Dividing may refer to each other, and the highlights of each of the examples are the differences of itself and other embodiments.Particularly with device
For embodiment, due to its substantially similar and embodiment of the method, so, it is described relatively simple, related place is referring to method reality
Apply the part explanation of example.
It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, apparatus or computer program
Product.Therefore, the shape of hardware embodiment, software implementation or embodiment combining software and hardware aspects can be used in the present invention
Formula.Moreover, the present invention, which can be used, can use storage in the computer that one or more wherein includes computer usable program code
The form for the computer program product implemented on medium (including but not limited to magnetic disk storage and optical memory etc.).
The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.
Claims (10)
1. a kind of data modulation method, which is characterized in that the described method includes:
On the edge subband of transmission band, the sequence spreading for being 2N multiplied by length by data to be transmitted, after obtaining 2N extension
Data；Wherein, the sequence spreading is one group per continuous two elements, and the phase difference for organizing interior two elements is zero, between group
The phase difference of element is zero or π；
Data after described 2N extension are sent on the continuous 2N subcarrier of the edge subband respectively；Wherein, N takes just
Integer.
2. the method as described in claim 1, which is characterized in that
When the N takes 1, the sequence spreading includes [C, C]；
When the N takes 2, the sequence spreading includes [C, C ,-C ,-C]；
When the N takes 3, the sequence spreading includes [C, C ,-C ,-C ,-C ,-C]；
Wherein, the C is plural number.
3. method according to claim 2, which is characterized in that when the N takes 2 or 3, it is described will described 2N extension after
Data are sent on the continuous 2N subcarrier of the edge subband respectively, comprising:
It is successively continuous in the edge subband according to the sequence of transmission band ecto-entad by the data after described 2N extension
It is sent on 2N subcarrier.
4. method as claimed in claim 3, which is characterized in that the data by after described 2N extension, according to transmitting pin
Sequence with ecto-entad is successively sent on the continuous 2N subcarrier of the edge subband, comprising:
When the edge subband is the edge subband of transmission band low frequency end, by the data after described 2N extension, according to frequency
The sequence of rate from low to high is successively sent on the continuous 2N subcarrier of the edge subband；
When the edge subband is the edge subband of transmission band front end, by the data after described 2N extension, according to frequency
The sequence of rate from high to low is successively sent on the continuous 2N subcarrier of the edge subband.
5. a kind of data modulating device characterized by comprising
Modulation module, for the edge subband in transmission band, the sequence spreading for being 2N multiplied by length by data to be transmitted is obtained
Data to after 2N extension；Wherein, the sequence spreading is one group per continuous two elements, organizes the phase of interior two elements
Difference is zero, and the phase difference of element is zero or π between group；
Transmission module, for sending out the data after described 2N extension on the continuous 2N subcarrier of the edge subband respectively
It send；Wherein, N takes positive integer.
6. device as claimed in claim 5, which is characterized in that
When the N takes 1, the sequence spreading includes [C, C]；
When the N takes 2, the sequence spreading includes [C, C ,-C ,-C]；
When the N takes 3, the sequence spreading includes [C, C ,-C ,-C ,-C ,-C]；
Wherein, the C is plural number.
7. device as claimed in claim 6, which is characterized in that when the N takes 2 or 3, the transmission module is used for will be described
Data after 2N extension, according to the sequence of transmission band ecto-entad successively in the continuous 2N subcarrier of the edge subband
Upper transmission.
8. device as claimed in claim 7, which is characterized in that data of the transmission module after extending described 2N,
According to the sequence of transmission band ecto-entad successively when being sent on the continuous 2N subcarrier of the edge subband, comprising:
When the edge subband is the edge subband of transmission band low frequency end, by the data after described 2N extension, according to frequency
The sequence of rate from low to high is successively sent on the continuous 2N subcarrier of the edge subband；
When the edge subband is the edge subband of transmission band front end, by the data after described 2N extension, according to frequency
The sequence of rate from high to low is successively sent on the continuous 2N subcarrier of the edge subband.
9. a kind of data modulating device characterized by comprising memory, processor and be stored on the memory and can
The data modulation program run on the processor is realized when the processor executes the data modulation program as right is wanted
The step of seeking 1 to 4 any one the method.
10. a kind of computer readable storage medium, which is characterized in that be stored thereon with computer program, the program is by processor
The step of data modulation method according to any one of claims 1 to 4 is realized when execution.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710398831.2A CN108989257B (en) | 2017-05-31 | 2017-05-31 | Data modulation method, device and storage medium |
| PCT/CN2018/088506 WO2018219233A1 (en) | 2017-05-31 | 2018-05-25 | Data modulation method, device and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710398831.2A CN108989257B (en) | 2017-05-31 | 2017-05-31 | Data modulation method, device and storage medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108989257A true CN108989257A (en) | 2018-12-11 |
| CN108989257B CN108989257B (en) | 2024-01-30 |
Family
ID=64454462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710398831.2A Active CN108989257B (en) | 2017-05-31 | 2017-05-31 | Data modulation method, device and storage medium |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108989257B (en) |
| WO (1) | WO2018219233A1 (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5926501A (en) * | 1996-12-12 | 1999-07-20 | Motorola, Inc. | Method and apparatus for dynamic channel configuration |
| WO2004002038A1 (en) * | 2002-06-25 | 2003-12-31 | Koninklijke Philips Electronics N.V. | Mt-cdma using spreading codes with interference-free windows |
| CN101057422A (en) * | 2004-12-03 | 2007-10-17 | 三星电子株式会社 | Apparatus and method for transmitting/receiving packet data symbol in a mobile communication system |
| CN102007743A (en) * | 2008-02-13 | 2011-04-06 | 电视广播有限公司 | Band-efficient method and system for transmitting/receiving a communication signal using a channel band |
| CN102067503A (en) * | 2008-05-15 | 2011-05-18 | 高通股份有限公司 | Using guard carriers for extra channels |
| WO2011105020A1 (en) * | 2010-02-24 | 2011-09-01 | パナソニック株式会社 | Radio transmitting apparatus and radio transmitting method |
| CN102413081A (en) * | 2011-12-30 | 2012-04-11 | 电信科学技术研究院 | Method, system and equipment for transmitting and receiving uplink data |
| CN102611664A (en) * | 2011-01-21 | 2012-07-25 | 华为技术有限公司 | Signal transmitting method and device |
| CN104854806A (en) * | 2013-01-10 | 2015-08-19 | 英特尔公司 | Sending information at a band edge within an orthogonal frequency-division multiplexing (ofdm) symbol |
| CN105515713A (en) * | 2014-09-25 | 2016-04-20 | 中兴通讯股份有限公司 | Multi-user CDMA (Code Division Multiple Access) communication method and corresponding transmitter and receiver |
| CN105577234A (en) * | 2014-10-10 | 2016-05-11 | 深圳市海思半导体有限公司 | Information transmitting-receiving method and information transmitting-receiving device |
| US20160380719A1 (en) * | 2015-06-24 | 2016-12-29 | Airbus Operations Gmbh | Method for masking communication signals, enodeb with masking functionality and aircraft |
-
2017
- 2017-05-31 CN CN201710398831.2A patent/CN108989257B/en active Active
-
2018
- 2018-05-25 WO PCT/CN2018/088506 patent/WO2018219233A1/en active Application Filing
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5926501A (en) * | 1996-12-12 | 1999-07-20 | Motorola, Inc. | Method and apparatus for dynamic channel configuration |
| WO2004002038A1 (en) * | 2002-06-25 | 2003-12-31 | Koninklijke Philips Electronics N.V. | Mt-cdma using spreading codes with interference-free windows |
| CN101057422A (en) * | 2004-12-03 | 2007-10-17 | 三星电子株式会社 | Apparatus and method for transmitting/receiving packet data symbol in a mobile communication system |
| CN102007743A (en) * | 2008-02-13 | 2011-04-06 | 电视广播有限公司 | Band-efficient method and system for transmitting/receiving a communication signal using a channel band |
| CN102067503A (en) * | 2008-05-15 | 2011-05-18 | 高通股份有限公司 | Using guard carriers for extra channels |
| WO2011105020A1 (en) * | 2010-02-24 | 2011-09-01 | パナソニック株式会社 | Radio transmitting apparatus and radio transmitting method |
| CN102611664A (en) * | 2011-01-21 | 2012-07-25 | 华为技术有限公司 | Signal transmitting method and device |
| CN102413081A (en) * | 2011-12-30 | 2012-04-11 | 电信科学技术研究院 | Method, system and equipment for transmitting and receiving uplink data |
| CN104854806A (en) * | 2013-01-10 | 2015-08-19 | 英特尔公司 | Sending information at a band edge within an orthogonal frequency-division multiplexing (ofdm) symbol |
| CN105515713A (en) * | 2014-09-25 | 2016-04-20 | 中兴通讯股份有限公司 | Multi-user CDMA (Code Division Multiple Access) communication method and corresponding transmitter and receiver |
| CN105577234A (en) * | 2014-10-10 | 2016-05-11 | 深圳市海思半导体有限公司 | Information transmitting-receiving method and information transmitting-receiving device |
| US20160380719A1 (en) * | 2015-06-24 | 2016-12-29 | Airbus Operations Gmbh | Method for masking communication signals, enodeb with masking functionality and aircraft |
Non-Patent Citations (1)
| Title |
|---|
| ERICSSON: "R1-1701122 "Short PUCCH Transmission - Impact on PUSCH Performance"", 3GPP TSG_RAN\\WG1_RL1, no. 1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018219233A1 (en) | 2018-12-06 |
| CN108989257B (en) | 2024-01-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111937331B (en) | Method and apparatus for decoding data in a wireless communication system | |
| JP5354886B2 (en) | OFDM communication apparatus and method | |
| CN108667581B (en) | Method and device for transmitting DMRS | |
| US10116479B2 (en) | Apparatus and operating method for controlling peak to average power ratio of signal in wireless communication system | |
| WO2019001287A1 (en) | Transmission method and device | |
| JP7167087B2 (en) | Transmission device and transmission method | |
| CN109802820B (en) | Signal processing method and signal processing device based on sequence | |
| CN107645464B (en) | Multi-carrier system and data modulation and demodulation method and device thereof | |
| EP3616375A1 (en) | Frequency-domain transmitters and receivers which adapt to different subcarrier spacing configurations | |
| CN115189855A (en) | Method and apparatus for signal processing | |
| CN102804673B (en) | The method and apparatus of the multichannel access in the cordless communication network using DCT-OFDM | |
| KR20230005994A (en) | Resource allocation methods, facilities and storage media | |
| CN112202699B (en) | Data modulation and demodulation method, frame generation method and node of multi-carrier system | |
| CN106961405B (en) | Data modulation and demodulation method, data transmission method and node of multi-carrier system | |
| WO2017129001A1 (en) | Data processing method and device | |
| KR20230035053A (en) | Data modulation method, communication device and storage medium | |
| WO2017114025A1 (en) | Communication processing method, processor and communication equipment | |
| EP1865679A1 (en) | Multicarrier system with multiple null subcarriers in transmitted signal due to variable receive bandwidths and the resulting multiple potential dc subcarriers | |
| EP3720076B1 (en) | Data transmission and receiving method, apparatus, and device, and computer readable storage medium | |
| CN109873783B (en) | Information sending method and device | |
| CN108989257A (en) | data modulation method, device and storage medium | |
| US8725092B2 (en) | Methods and apparatuses for frequency filtering for non-centered component carrier transmission | |
| CN108111285B (en) | Method and device for transmitting reference signal | |
| Kadhum et al. | Digital chunk processing with orthogonal GFDM doubles wireless channel capacity | |
| CN108540418B (en) | Data modulation method and device for edge sub-band |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |