CN108282435A - A kind of method for transmitting signals and device - Google Patents
A kind of method for transmitting signals and device Download PDFInfo
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- CN108282435A CN108282435A CN201710065929.6A CN201710065929A CN108282435A CN 108282435 A CN108282435 A CN 108282435A CN 201710065929 A CN201710065929 A CN 201710065929A CN 108282435 A CN108282435 A CN 108282435A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2602—Signal structure
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2602—Signal structure
- H04L27/2605—Symbol extensions, e.g. Zero Tail, Unique Word [UW]
- H04L27/2607—Cyclic extensions
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2614—Peak power aspects
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2614—Peak power aspects
- H04L27/262—Reduction thereof by selection of pilot symbols
-
- 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
- H04L27/2614—Peak power aspects
- H04L27/2621—Reduction thereof using phase offsets between subcarriers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
- H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
- H04L5/0055—Physical resource allocation for ACK/NACK
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Abstract
The invention discloses a kind of signaling methods, including:Obtain the First ray that length is N;N is positive integer;The first modulation symbol will be modulated on M position of the First ray;First modulation symbol characterizes modulated signal;M is the positive integer less than N;The First ray with first modulation symbol is sent on transmission symbol;Alternatively, M position of the First ray is divided into G groups, identical modulation symbol is modulated in every group;The modulation symbol characterizes modulated signal;G is the integer equal to or more than 2, and G is equal to or less than N;The First ray with the G groups modulation symbol is sent on transmission symbol.The present invention also discloses a kind of signal acceptance method, sender unit and signal receiving devices.
Description
Technical field
The present invention relates to wireless communication technique more particularly to a kind of method for transmitting signals and device.
Background technology
5th third-generation mobile communication technology (5G) will support higher rate (generally Gbps), flood tide to link (1M/km2), it is super
Low time delay (1ms), higher reliability, the promotion of hundred times of energy efficiency etc. are to support new changes in demand.This means that needing
More flexible frame structure support.Currently two kinds of transmission time units (slot) of preliminary definition, Yi Zhongwei in the standard of 5G
Transmission time unit based on downlink, a kind of transmission time unit for based on uplink.In order to quickly carry out down mixing certainly
Dynamic retransmission request (HARQ, Hybrid Automatic Repeat reQuest), realizes self-contained feedback, so two when necessary
It may all contain upload control symbol in kind transmission time unit.
In 5G systems, how on the basis of ensureing compared with low peak average ratio pilot signal transmitted and data are at present urgently simultaneously
Problem to be solved.
Invention content
To solve existing technical problem, a kind of method for transmitting signals of offer of the embodiment of the present invention and device.
What the technical solution of the embodiment of the present invention was realized in:
An embodiment of the present invention provides a kind of signaling methods, including:
Obtain the First ray that length is N;N is positive integer;
The first modulation symbol will be modulated on M position of the First ray;The first modulation symbol characterization modulation
Signal afterwards;M is the positive integer less than N;The First ray with first modulation symbol is sent on transmission symbol;Or
M position of the First ray is divided into G groups, identical modulation symbol is modulated in every group by person;The modulation symbol characterization
Modulated signal;G is the integer equal to or more than 2, and G is equal to or less than N;It is sent with described on transmission symbol
The First ray of G group modulation symbols.
In said program, the M position is the even order point position of the First ray, or is the First ray
Odd numbered sequences point position.
In said program, the M position is the subset of all even number points position of the First ray.
In said program, the M position is the subset of all odd point positions of the First ray.
In said program, the First ray is that the second sequence is obtained by different frequency domain phase places and/or described
First ray is what the second sequence was obtained by different sequential cyclic shifts;Wherein,
The amplitude of second sequence is non-zero constant, and the length of second sequence is N.
In said program, second sequence is Zadoff-Chu sequence, or converts to obtain by Zadoff-Chu sequence.
In said program, second sequence is truncated by Zadoff-Chu sequence and is obtained, or by Zadoff-Chu sequence
Cyclic extensions obtain.
In said program, second sequence is that the machine obtained by quadrature phase shift keying (QPSK) phase-modulation selects sequence.
In said program, when the First ray is obtained by the second sequence by different sequential cyclic shifts, described first
Sequence is included in arrangement set, passes through different sequential cyclic shifts by second sequence comprising K in the arrangement set
Obtained sequence;K is positive integer, and
In said program, when N is even number, the arrangement set is that second sequence is respectively by cyclic shift amount
αk,αk+1,…,Institute's formation sequence constitutes the subset of set;αkInteger more than or equal to zero.
In said program, when N is odd number, the arrangement set is that second sequence is respectively by cyclic shift amount
αk,αk+1,…,Institute's formation sequence constitutes the subset of set;αkInteger more than or equal to zero.
In said program, when N is even number, K sequence meets at least one the following conditions:
Different sequences are mutually orthogonal;
The sequence that the length that not homotactic even bit is constituted is N/2 is mutually orthogonal;
The sequence that the length that not homotactic odd bits are constituted is N/2 is mutually orthogonal.
In said program, when second sequence is Zadoff-Chu sequence, N 12 or it is 24 or is 36.
In said program, N 12 or be 24.
In said program, first modulation symbol is ACK the or NACK message or data information of modulation.
In said program, when sending ACK the or NACK message of 1 bit, will it be adjusted on M position of the First ray
The first modulation symbol is made, first modulation symbol is to disappear by the modulated ACK or NACK of binary phase shift keying (BPSK)
Breath.
In said program, when sending ACK the or NACK message of 2 bits, will it be adjusted on M position of the First ray
The first modulation symbol is made, first modulation symbol is by the modulated ACK or NACK message of QPSK.
When sending more than or equal to 2 bit message, M position of the First ray is divided into G groups, every group is adjusted
Make identical modulation symbol.
In said program, when sending the message of 2 bits, M position of the First ray is divided into three groups, every group equal
Modulate identical modulation symbol.
In said program, three groups of modulation symbols are { sG1,sG2,sG3, wherein sG1For the corresponding modulation in first group of position
Symbol, sG2For the corresponding modulation symbol in second group of position, sG3For the corresponding modulation symbol in third group position;
{sG1,sG2,sG3Value be { 1,1,1 }, { j, -1,-j }, { -1,1, -1 }, one of {-j, -1, j }, alternatively, { sG1,
sG2,sG3Value be { 1,1,1 }, { -1, -1, -1 }, { j, j, j }, one of {-j,-j,-j };Wherein, j indicates unit imaginary number.
In said program, N=12, M=9, it is first group that index, which is the sequence of points of { 1,5,9 }, in the First ray, institute
It is second group to state in First ray the sequence of points that index be { 2,6,10 }, and the sequence for { 3,7,11 } is indexed in the First ray
Point is third group.
In said program, when sending 1 bit message, two First rays, the time domain of described two First rays are determined
Cyclic shift amount differs N/2.
In said program, when sending 2 bit message, four First rays are determined, any two in four First rays
The difference of the time-domain cyclic shift amount of sequence is the integral multiple of N/4.
In said program, the first modulation symbol that the First ray carries is 1 or the G of First ray carrying
Group modulation symbol is 1.
In said program, sent in scheduling request (SR, Scheduling Request) and ACK and NACK message when simultaneously
For the moment, the First ray be the corresponding sequences of the SR.
It is described that First ray or transmission with first modulation symbol are sent on transmission symbol in said program
First ray with G groups modulation, including:
First ray with first modulation symbol or with the G groups modulation symbol is mapped in the N of frequency domain
It is sent in a continuous subcarrier;
Alternatively,
First ray with first modulation symbol or with the G groups modulation symbol is mapped between frequency domain etc.
Every N number of discontinuous subcarrier on send.
In said program, when the number of the transmission symbol is at least two, band is sent on each transmission symbol
There is the First ray of first modulation symbol.
It is each to transmit the corresponding First ray difference of symbol in said program.
In said program, difference transmission symbol mapped frequency domain position is different.
In said program, for different transmitting terminals, corresponding First ray is different, or transmission symbol mapped frequency
Domain position is different.
In said program, sent on transmission symbol with first modulation symbol or with G groups modulation symbol
Number First ray when, the method further includes:
Cell level scrambling is carried out to the First ray with first modulation symbol or with the G groups modulation symbol
Processing;
Correspondingly, it is sent on the transmission symbol and carries first modulation symbol or with the G after scrambling
The First ray of group modulation symbol.
The embodiment of the present invention additionally provides a kind of signal acceptance method, including:
The First ray with the first modulation symbol is received on transmission symbol;First with first modulation symbol
Sequence is obtained after modulating the first modulation symbol on M position of the length for the First ray of N;N is positive integer;Utilize band
There is the sequence of points of M position of the First ray of first modulation symbol to be demodulated, obtains the first modulation symbol;Described
One modulation symbol characterizes modulated signal;M is the positive integer less than N;Alternatively,
The First ray with G group modulation symbols is received on transmission symbol;The first sequence with the G groups modulation symbol
Row are the M position of First ray that length is N to be divided into G groups, and modulate in every group and obtain after identical modulation symbol;N
For positive integer;G is the integer equal to or more than 2, and G is equal to or less than N;The modulation symbol characterizes modulated letter
Number;It is demodulated using the sequence of points of M position of the First ray with the G groups modulation symbol, obtains G groups modulation symbol
Number;M is the positive integer less than N;Alternatively,
The First ray with the first modulation symbol or with the G groups modulation symbol is received on transmission symbol;Band
The First ray of first modulation symbol is to modulate the first modulation symbol on M position of the length for the First ray of N
It obtains afterwards;First ray with the G groups modulation symbol is that M position of the First ray that length is N is divided into G groups,
And it modulates in every group and obtains after identical modulation symbol;N is positive integer;M is the positive integer less than N;G be equal to or more than
2 integer, and G is equal to or less than N;It is carried out using all sequences point of the First ray with corresponding modulation symbol incoherent
Demodulation, obtains corresponding modulation symbol.
In said program, the method further includes;
Using in the First ray with first modulation symbol or with the G groups modulation symbol remove M position
The sequence of points of outer other positions carries out channel estimation.
In said program, when sending SR and ACK and a period of time in NACK message simultaneously, described utilize carries described first
The sequence of points of M position of modulation symbol or First ray with the G groups modulation symbol is demodulated, and the first tune is obtained
Symbol processed includes:
Utilize the sequence of M position of the SR sequences with first modulation symbol or with the G groups modulation symbol
Row point is demodulated, and the first modulation symbol is obtained.
It is described to be received on transmission symbol with first modulation symbol or adjusted with the G groups in said program
The First ray of symbol processed, including:
It is received in N number of continuous subcarrier of frequency domain with first modulation symbol or with G groups modulation symbol
Number First ray;
Alternatively,
With first modulation symbol or the G is carried in the equally spaced N number of discontinuous received over subcarriers of frequency domain
The First ray of group modulation symbol.
In said program, for different transmitting terminals, corresponding First ray is different, or transmission symbol mapped frequency
Domain position is different.
In said program, the method further includes:
Cell-level descrambling is carried out to the First ray with first modulation symbol or with the G groups modulation symbol
Processing.
The embodiment of the present invention provides a kind of sender unit again, including:
Acquiring unit, for obtaining the First ray that length is N;N is positive integer;
Modulation unit, modulates the first modulation symbol on the M position by the First ray, or by described
M position of one sequence is divided into G groups, and identical modulation symbol is modulated in every group;After the first modulation symbol characterization modulation
Signal;The modulation symbol characterizes modulated signal;M is the positive integer less than N;G is the integer equal to or more than 2,
And G is equal to or less than N;
Transmission unit, for sending with first modulation symbol on transmission symbol or being modulated with the G groups
The First ray of symbol.
In said program, the acquiring unit is specifically used for:
When sending SR and ACK and a period of time in NACK message simultaneously, using the corresponding sequences of the SR as described first
Sequence.
In said program, the transmission unit is specifically used for:
First ray with first modulation symbol or with the G groups modulation symbol is mapped in the N of frequency domain
It is sent in a continuous subcarrier;
Alternatively,
First ray with first modulation symbol or with the G groups modulation symbol is mapped between frequency domain etc.
Every N number of discontinuous subcarrier on send.
In said program, described device further includes:
Scrambling unit, for the First ray with first modulation symbol or with the G groups modulation symbol
Carry out cell level scrambling processing;
Correspondingly, the transmission unit, for sending being modulated with described first after scrambling on the transmission symbol
Symbol or First ray with the G groups modulation symbol.
The embodiment of the present invention additionally provides a kind of signal receiving device, including:
Receiving unit, for receiving the First ray with the first modulation symbol on transmission symbol;With described first
The First ray of modulation symbol is obtained after modulating the first modulation symbol on M position of the length for the First ray of N;N
For positive integer;
Demodulating unit, the sequence of points for the M position using the First ray with first modulation symbol carry out
Demodulation, obtains the first modulation symbol;First modulation symbol characterizes modulated signal;M is the positive integer less than N;Alternatively,
Receiving unit, for receiving the First ray with G group modulation symbols on transmission symbol;It is adjusted with the G groups
The First ray of symbol processed is M position of the First ray that length is N to be divided into G groups, and identical modulation is modulated in every group
It is obtained after symbol;N is positive integer;G is the integer equal to or more than 2, and G is equal to or less than N;The modulation symbol table
Levy modulated signal;
Demodulating unit, the sequence of points for the M position using the First ray with the G groups modulation symbol are solved
It adjusts, obtains G group modulation symbols;M is the positive integer less than N;Alternatively,
Receiving unit, for receiving the with the first modulation symbol or with G group modulation symbols on transmission symbol
One sequence;First ray with first modulation symbol is to modulate first on M position of the length for the First ray of N
It is obtained after modulation symbol;First ray with the G groups modulation symbol is by First ray that length is N by M position
It sets and is divided into G groups, and modulate in every group and obtain after identical modulation symbol;N is positive integer;M is the positive integer less than N;G be etc.
In or more than 2 integer, and G be equal to or less than N;
Demodulating unit, for carrying out incoherent solution using all sequences point of the First ray with corresponding modulation symbol
It adjusts, obtains corresponding modulation symbol.
In said program, described device further includes:
Channel estimating unit, for utilizing the with first modulation symbol or with the G groups modulation symbol
The sequence of points of other positions in one sequence in addition to M position carries out channel estimation.
In said program, the demodulating unit is specifically used for:
When sending SR and ACK and a period of time in NACK message simultaneously, using with first modulation symbol or band
There is the sequence of points of M position of the SR sequences of the G groups modulation symbol to be demodulated, obtains corresponding modulation symbol.
In said program, the receiving unit is specifically used for:
It is received in N number of continuous subcarrier of frequency domain with first modulation symbol or with G groups modulation symbol
Number First ray;
Alternatively,
With first modulation symbol or the G is carried in the equally spaced N number of discontinuous received over subcarriers of frequency domain
The First ray of group modulation symbol.
In said program, described device further includes:
Descrambling unit, for the First ray with first modulation symbol or with the G groups modulation symbol
Carry out cell-level scramble process.
Method for transmitting signals and device provided in an embodiment of the present invention, transmitting terminal obtain the First ray that length is N;N is
Positive integer;The first modulation symbol will be modulated on M position of the First ray;After the first modulation symbol characterization modulation
Signal;M is the positive integer less than N;The First ray for carrying first modulation symbol is sent on transmission symbol;Or
M position of the First ray is divided into G groups, identical modulation symbol is modulated in every group by person;The modulation symbol characterization
Modulated signal;G is the integer equal to or more than 2, and G is equal to or less than N;It is sent with described on transmission symbol
The First ray of G group modulation symbols;And receiving terminal receives on transmission symbol and has carried first modulation symbol or band
State the First ray of G group modulation symbols;It is solved using the sequence of points of M position of the First ray with corresponding modulation symbol
It adjusts, or non-coherent demodulation is carried out using all sequences point of the First ray with corresponding modulation symbol, adjusted accordingly
Symbol processed, using the partial sequence point modulation data (signal) in First ray, and other sequence of points can send reference signal,
In such manner, it is possible to realize while sending reference signal and data, and while sending reference signal and data simultaneously, can keep lower
Peak-to-average force ratio.
Description of the drawings
In attached drawing (it is not necessarily drawn to scale), similar reference numeral phase described in different views
As component.Similar reference numerals with different letter suffix can indicate the different examples of similar component.Attached drawing with example and
Unrestricted mode generally shows each embodiment discussed herein.
Fig. 1 is the method flow schematic diagram that one signal of the embodiment of the present invention is sent;
Fig. 2 is the method flow schematic diagram that one signal of the embodiment of the present invention receives;
Fig. 3 is the method flow schematic diagram of one signal transmission of the embodiment of the present invention;
Fig. 4 is that two user terminal of the embodiment of the present invention modulates data onto the predefined sequence in length N=12 on 1 symbol
The schematic diagram of row odd bits;
Fig. 5 is that three user terminal of the embodiment of the present invention is modulated data onto on 1 symbol in the predefined of length N=24
The schematic diagram of Zadoff-Chu sequence even bit;
Fig. 6 is the schematic diagram that five user terminal of the embodiment of the present invention sends SR and ACK/NACK message in 1 symbol simultaneously;
Six user terminal of Fig. 7 embodiment of the present invention is modulated data onto on 2 symbols in the predefined of length N=24
The schematic diagram of Zadoff-Chu sequence even bit;
Fig. 8 is that predefined sequence is mapped to frequency domain on 1 symbol is sub at equal intervals for seven user terminal of the embodiment of the present invention
The schematic diagram of carrier wave;
Fig. 9 is that eight user terminal of the embodiment of the present invention modulates data onto the predefined sequence in length N=12 on 1 symbol
The schematic diagram in 4 precalculated positions in row;
Figure 10 is that nine user terminal of the embodiment of the present invention is modulated data onto on 1 symbol in three groups of positions of predefined sequence
The schematic diagram set;
Figure 11 is 11 sender unit structural schematic diagram of the embodiment of the present invention;
Figure 12 is 11 signal receiving device structural schematic diagram of the embodiment of the present invention;
Figure 13 is 11 signal transmission system structural schematic diagram of the embodiment of the present invention.
Specific implementation mode
The present invention is described in further detail again with reference to the accompanying drawings and embodiments.
Currently, since upload control symbol may only take up 1~2 orthogonal frequency division multiplexing (OFDM, Orthogonal
Frequency Division Multiplexing) symbol or single carrier frequency division be multiplexed (SC-FDMA, Single
Carrier-Frequency Division Multiplexing Access) symbol.So in this case, physical uplink
The performance of control channel (PUCCH, Physical Uplink Control Channel) will likely can become the bottle of MPS process
Neck.For this purpose, should keep uplink single-carrier property to support higher covering as far as possible.And when PUCCH only takes up a symbol
When, how reference signal (RS, Reference Signal) (pilot signal) and data (PUCCH) to be sent out on a symbol
It send, and keeps that compared with low peak average ratio a problem will be become.
In addition, PUCCH can be used for send confirm instruction (ACK, ACKnowledgement), non-acknowledgement instruction (NACK,
Negative Acknowledgement) message and SR.In PUCCH Format 1/1a/1b, ACK/NACK is sent when simultaneously
Message and when SR, can send ACK/NACK message using the channel resource of SR, both preferably solve multiplying question.However
When the symbolic number of PUCCH only has 1, the channel architecture designed by 5G systems also should be able to efficiently solve ACK/NCK message and SR
The problem of multiplexing.
Based on this, in various embodiments of the present invention:Transmitting terminal obtains the First ray that length is N;N is positive integer;
The first modulation symbol will be modulated on M position of the First ray;First modulation symbol characterizes modulated signal;
M is the positive integer less than N;The First ray with first modulation symbol is sent on transmission symbol;Alternatively, by described
M position of one sequence is divided into G groups, and identical modulation symbol is modulated in every group;The modulation symbol characterizes modulated letter
Number;G is the integer equal to or more than 2, and G is equal to or less than N;It is sent on transmission symbol with G groups modulation symbol
Number First ray;And receiving terminal receives the First ray with corresponding modulation symbol on transmission symbol;Using with described
The sequence of points of M position of the First ray of corresponding modulation symbol is demodulated, or using carrying the of corresponding modulation symbol
The all sequences point of one sequence carries out non-coherent demodulation, obtains corresponding modulation symbol.
Embodiment one
The method that signal of the embodiment of the present invention is sent is applied to user terminal, as shown in Figure 1, this method includes following step
Suddenly:
Step 101:Obtain the First ray that length is N;
Here, N is positive integer.
When practical application, the First ray is pre-defined sequence.That is, user terminal has known in advance
One sequence.
Here, in one embodiment, the First ray can be that the second sequence is obtained by different frequency domain phase places
And/or the First ray be what the second sequence was obtained by different sequential cyclic shifts;Wherein,
Second sequence can be that amplitude is non-zero constant, and length is the sequence of N.
Wherein, second sequence can be Zadoff-Chu sequence, or convert to obtain by Zadoff-Chu sequence.
Second sequence is converted to obtain by Zadoff-Chu sequence, can be specifically:Second sequence is by Zadoff-
Chu sequence truncations obtain, or are obtained by Zadoff-Chu sequence cyclic extensions.
Here, when second sequence is Zadoff-Chu sequence, N 12 or it is 24 or is 36.
When practical application, second sequence can also be that the machine obtained by QPSK phase-modulations selects sequence.At this point, N can
Think 12 or 24.
When the First ray is obtained by the second sequence by different sequential cyclic shifts, the First ray is included in
In arrangement set, pass through the sequence that different sequential cyclic shifts obtain by second sequence comprising K in the arrangement set;
K is positive integer, and
Wherein, when N is even number, the arrangement set is respectively α by cyclic shift amount for second sequencek,αk+
1,…,Institute's formation sequence constitutes the subset of set.
When N is odd number, the arrangement set is respectively α by cyclic shift amount for second sequencek,αk+1,…,Institute's formation sequence constitutes the subset of set.
Here, αkMore than or equal to another integer.Expression rounds up.
Wherein, when N is even number, K sequence meets at least one the following conditions:
Different sequences are mutually orthogonal;
The sequence that the length that not homotactic even bit is constituted is N/2 is mutually orthogonal;
The sequence that the length that not homotactic odd bits are constituted is N/2 is mutually orthogonal.
When second sequence is Zadoff-Chu sequence, N can be 12,24 or 36.
Step 102:The first modulation symbol will be modulated on M position of the First ray or M position is divided into
G groups in modulate identical modulation symbol in every group;
Here, first modulation symbol characterizes modulated signal.
M is the positive integer less than N.
When modulating identical modulation symbol in every group in the G groups that M position is divided into, the transmitting terminal is by described
M position of one sequence is divided into G groups, and identical modulation symbol is modulated in every group.
Wherein, the modulation symbol characterizes modulated signal;G is integer equal to or more than 2, and G be equal to or
Less than N.
When practical application, M position is predefined, that is to say, that user terminal, which is realized, has known the specific of M position
Position.
In one embodiment, the M position can be the even order point position of the First ray, or institute
State the odd numbered sequences point position of First ray.
Wherein, when practical application, when the M position is the even order point position of the First ray, the M
Position is specifically as follows the subset of all even number points position of the First ray.
When the M position is the odd numbered sequences point position of the First ray, the M position is specifically as follows institute
State the subset of all odd point positions of First ray.
When practical application, the signal can be uplink control signal, such as ACK or NACK message etc..
Therefore, first modulation symbol can be ACK the or NACK message or data information of modulation.
Wherein, when sending ACK the or NACK message of 1 bit, first will be modulated on M position of the First ray
Modulation symbol, first modulation symbol are by the modulated ACK or NACK message of BPSK.
When sending ACK the or NACK message of 2 bits, the first modulation will be modulated on M position of the First ray
Symbol, first modulation symbol are by the modulated ACK or NACK message of QPSK.
The uplink refers to:User terminal sends the direction of information to base station.
When sending more than or equal to 2 bit message, M position of the First ray is divided into G groups, every group is adjusted
Make identical modulation symbol.
Specifically, when sending the message of 2 bits, M position of the First ray is divided into three groups, every group is modulated
Identical modulation symbol.
Wherein, three groups of modulation symbols are defined as { sG1,sG2,sG3, wherein sG1For the corresponding modulation symbol in first group of position,
sG2For the corresponding modulation symbol in second group of position, sG3For the corresponding modulation symbol in third group position;
{sG1,sG2,sG3Value be { 1,1,1 }, { j, -1,-j }, { -1,1, -1 }, one of {-j, -1, j }, alternatively, { sG1,
sG2,sG3Value be { 1,1,1 }, { -1, -1, -1 }, { j, j, j }, one of {-j,-j,-j }.
Wherein, j indicates unit imaginary number.
Here, work as N=12, when M=9, index is that the sequence of points of { 1,5,9 } is set as first group in the First ray, institute
It states the sequence of points that index in First ray is { 2,6,10 } and is set as second group, the sequence for { 3,7,11 } is indexed in the First ray
Row point is set as third group.
In one embodiment, two First rays are determined when sending 1 bit message, described two First rays when
Domain cyclic shift amount differs N/2.
When sending 2 bit message, four First rays are determined, the time domain of any two sequence is followed in four First rays
The difference of ring shift amount is the integral multiple of N/4.
In one embodiment, the first modulation symbol that the First ray carries is 1 or the First ray carries
G group modulation symbols are 1.
When needing while sending a period of time in SR and ACK and NACK message, the First ray is that the SR is corresponding
Sequence, i.e. SR sequences.
Here, SR sequences refer to having carried the sequence of SR.
Step 103:The First ray with corresponding modulation symbol is sent on transmission symbol.
Specifically, the First ray with first modulation symbol or with the G groups modulation symbol is mapped in
It is sent in N number of continuous subcarrier of frequency domain;Alternatively, first modulation symbol will be carried or carry the G groups modulation symbol
First ray be mapped on the equally spaced N number of discontinuous subcarrier of frequency domain and send.
Wherein, the First ray with first modulation symbol or with the G groups modulation symbol is mapped in frequency
It sends, can be detected in favor of being sent in unmapped frequency domain position (on subcarrier) on the equally spaced N number of discontinuous subcarrier in domain
Reference signal (SRS).
When practical application, it is described transmission symbol can with number be at least two;
Correspondingly, when the number of the transmission symbol is at least two, band has been sent on each transmission symbol
State the First ray of the first modulation symbol.
Wherein, each the corresponding First ray of transmission symbol is different.
Difference transmission symbol mapped frequency domain position is different, so, it is possible to obtain frequency division gain.
For different transmitting terminals, corresponding First ray is different, or transmission symbol mapped frequency domain position is different,
In this way, can be to avoid the interference between different user terminals in network cell.
Wherein, when practical application, in order to reduce the interference of minizone, different first can be used between heterogeneous networks cell
Sequence or heterogeneous networks cell carry out the scrambling of cell-level when sending signal.
Based on this, sent with first modulation symbol or with the G groups modulation symbol on transmission symbol
When First ray, the method further includes:
Cell level scrambling is carried out to the First ray with first modulation symbol or with the G groups modulation symbol
Processing;
Correspondingly, it is sent on the transmission symbol and carries first modulation symbol or with the G after scrambling
The First ray of group modulation symbol.
Here, when practical application, cell specific scrambling code sequence pair may be used and carry first modulation symbol or band
There is the First ray of the G groups modulation symbol to carry out cell level scrambling processing.
Correspondingly, the embodiment of the present invention additionally provides a kind of signal acceptance method, is applied to base station, as shown in Fig. 2, the party
Method includes the following steps:
Step 201:It is received with first modulation symbol or with the G groups modulation symbol on transmission symbol
First ray;
Specifically, it is received in N number of continuous subcarrier of frequency domain with first modulation symbol or carries the G groups
The First ray of modulation symbol;Alternatively, in the equally spaced N number of discontinuous received over subcarriers of frequency domain with the first modulation symbol
Number or the First ray with the G groups modulation symbol.
Wherein, when the First ray with first modulation symbol or with the G groups modulation symbol is mapped in frequency
When being sent in N number of continuous subcarrier in domain, receive in N number of continuous subcarrier of frequency domain with first modulation symbol or
First ray with the G groups modulation symbol.
Between the First ray with first modulation symbol or with the G groups modulation symbol is mapped in frequency domain etc.
Every N number of discontinuous subcarrier on send when, the equally spaced N number of discontinuous received over subcarriers of frequency domain with it is described first adjust
Symbol processed or First ray with the G groups modulation symbol.
Step 202:Utilize the M of the First ray with first modulation symbol or with the G groups modulation symbol
The sequence of points of a position carries out demodulation or carries out non-coherent demodulation using all sequences point, obtains corresponding modulation symbol.
For step 201~202, specifically, the receiving terminal receives on transmission symbol with the first modulation symbol
First ray;First ray with first modulation symbol be the First ray that length is N M position on modulate the
It is obtained after one modulation symbol;It is solved using the sequence of points of M position of the First ray with first modulation symbol
It adjusts, obtains the first modulation symbol.
The receiving terminal receives the First ray with G group modulation symbols on transmission symbol;It modulates and accords with the G groups
Number First ray be the M position of First ray that length is N to be divided into G groups, and identical modulation symbol is modulated in every group
It obtains afterwards;It is demodulated using the sequence of points of M position of the First ray with the G groups modulation symbol, obtains G groups tune
Symbol processed.
When the receiving terminal receives on transmission symbol with the first modulation symbol or with the G groups modulation symbol
When First ray, non-coherent demodulation can also be carried out using all sequences point of the First ray with corresponding modulation symbol, obtained
To corresponding modulation symbol.
Here, when practical application, this method can also include:
Using in the First ray with first modulation symbol or with the G groups modulation symbol remove M position
The sequence of points of outer other positions carries out channel estimation.
Here, when the First ray with first modulation symbol or with the G groups modulation symbol carries out cell
After level scrambling processing, before executing this step, this method can also include:
Cell-level descrambling is carried out to the First ray with first modulation symbol or with the G groups modulation symbol
Processing.
Here, when practical application, cell specific scrambling code sequence pair may be used and carry first modulation symbol or band
There is the First ray of the G groups modulation symbol to carry out cell-level scramble process.
When practical application, when having sent SR and ACK and a period of time in NACK message simultaneously, adjusted using with described first
The sequence of points of M position of symbol processed or SR sequences with the G groups modulation symbol is demodulated, and obtains accordingly modulating symbol
Number.
It should be noted that:For different transmitting terminals (user terminal), corresponding First ray is different, or transmission symbol
Number mapped frequency domain position is different.
Correspondingly, the embodiment of the present invention additionally provides a kind of method for transmitting signals, as shown in figure 3, this method includes:
Step 301:Transmitting terminal obtains the First ray that length is N;
Here, N is positive integer.
Step 302:The transmitting terminal will modulate the first modulation symbol or M on M position of the First ray
In the G groups that position is divided into identical modulation symbol is modulated in every group;
Here, first modulation symbol characterizes modulated signal;M is the positive integer less than N.
The modulation symbol characterizes modulated signal;G is the integer equal to or more than 2, and G is equal to or less than N.
Step 303:The transmitting terminal sends the First ray with corresponding modulation symbol on transmission symbol;
Step 304:Receiving terminal receives the First ray with corresponding modulation symbol on transmission symbol;
Step 305:The receiving terminal utilizes the sequence of points of M position of the First ray with the corresponding modulation symbol
It carries out demodulation or carries out non-coherent demodulation using all sequences point, obtain corresponding modulation symbol.
It should be noted that:The concrete processing procedure of transmitting terminal and receiving terminal is as detailed above, and which is not described herein again.
Method for transmitting signals provided in an embodiment of the present invention, transmitting terminal obtain the First ray that length is N;N is positive integer;
The first modulation symbol will be modulated on M position of the First ray;First modulation symbol characterizes modulated signal;
M is the positive integer less than N;The First ray with first modulation symbol is sent on transmission symbol;Alternatively, by described
M position of one sequence is divided into G groups, and identical modulation symbol is modulated in every group;The modulation symbol characterizes modulated letter
Number;G is the integer equal to or more than 2, and G is equal to or less than N;It is sent on transmission symbol with G groups modulation symbol
Number First ray;And receiving terminal receives the First ray with corresponding modulation symbol on transmission symbol;Using with described
The sequence of points of M position of the First ray of corresponding modulation symbol is demodulated, or using carrying the of corresponding modulation symbol
The all sequences point of one sequence carries out non-coherent demodulation, corresponding modulation symbol is obtained, using the partial sequence point in First ray
Modulation data (signal), and other sequence of points can send reference signal, in such manner, it is possible to realize while sending reference signal sum number
According to, and while sending reference signal and data simultaneously lower peak-to-average force ratio can be kept low.
In addition, when practical application, the value of N can be bigger, so that inter-cell interference is lower.
In addition to this, when a period of time in SR and ACK and NACK message, the First ray is the corresponding sequences of the SR
Row, i.e. SR sequences, in such manner, it is possible to realize ACK/NACK message and the multiplexing of SR.
Embodiment two
On the basis of embodiment one, the sending method of reference signal and data is described in detail in the present embodiment.
Fig. 4 is the predefined sequence that data (controlling information) are modulated at length N=12 by user terminal on 1 symbol
The schematic diagram of odd bits.
In conjunction with Fig. 4 as can be seen that after ACK/NACK message (control information) progress BPSK or QPSK modulation, after obtaining modulation
ACK/NACK message Sk, then by SkMultiply the odd bits in predefined sequence W (n), i.e., in the odd bits of predefined sequence W (n)
Modulate Sk, remaining sequence of points remains unchanged, i.e. the sequence of points of even bit remains unchanged, and be then mapped to frequency domain 12 are continuous
It is sent on subcarrier.
Wherein, the QPSK machines that W (n) is length N=12 select sequence.
Here, the machine of the QPSK selects sequence to be represented by frequency domain0≤n < N, whereinIt can
The value in 1, -1,3, -3.Different basic sequencesValue is different.
For determining basic sequence, that is, determineValue, the phase deflection sequence on frequency domain are represented by:WhereinIndicate that the amount of phase rotation, α can be defined as the cyclic shift amount in time domain.
Assuming that determineValue is [- 1,1,3, -3,3,3,1,1,3,1, -3,3], the motif on corresponding frequency domain
Row and its phase deflection sequence obtained by 5 kinds of different cyclic shift amounts, as shown in table 1.
Table 1
When practical application, it can choose therein arbitraryA by a sequence is respectively α by cyclic shift amountk,αk+
1,…,The Sequence composition predefined sequence set generated.For example for, it is assumed that αk=0, then it can choose table
6 row in 1 select sequence, i.e. predefined sequence as the QPSK machines of different user terminals.
The sequence chosen at this time can meet at least one the following conditions:
The predefined sequence of different user terminals is mutually orthogonal;
The sequence that the length that the even bit of the predefined sequence of different user terminals is constituted is 6 is mutually orthogonal;
The sequence that the length that the odd bits of the predefined sequence of different user terminals are constituted is 6 is mutually orthogonal.
After sending out predefined sequence, for receiving terminal, the even bit (characterization in sequence can be utilized according to local sequence
Reference signal) channel estimation is carried out, then demodulate the valid data of odd bits.And using different pre- between different user terminals
Defined nucleotide sequence is distinguished.
Embodiment three
On the basis of embodiment one, the sending method of reference signal and data is described in detail in the present embodiment.
Data (controlling information) are modulated at the predefined of length N=24 on 1 symbol for user terminal in Fig. 5
The schematic diagram of Zadoff-Chu sequence even bit.
In conjunction with Fig. 5 as can be seen that after ACK/NACK (control information) message progress BPSK or QPSK modulation, after obtaining modulation
ACK/NACK message Sk, then by SkMultiply the even bit in predefined sequence W (n), i.e., in the even bit of predefined sequence W (n)
Modulate Sk, remaining sequence of points remains unchanged, i.e. the sequence of points of odd bits remains unchanged, and be then mapped to frequency domain 24 are continuous
It is sent on subcarrier.
Wherein, W (n) is the Zadoff-Chu sequence of length N=24.
Here, Zadoff-Chu sequence is represented by frequency domain0≤n < N, wherein q is motif
Column index, it is relatively prime with length N.
For determining basic sequence, i.e., determining q values, the phase deflection sequence on frequency domain is represented by:WhereinIndicate that the amount of phase rotation, α can be defined as the cyclic shift amount in time domain.
When practical application, it can choose therein arbitraryA by a sequence is respectively α by cyclic shift amountk,αk+
1,…,The Sequence composition generated constitutes the predefined sequence set.For example for, it is assumed that αk=12,
It is respectively 12,13 that can then choose by a basic sequence by cyclic shift amount ..., 23 Sequence compositions generated predefine sequences
Row.
At this point, the predefined sequence chosen meets at least one the following conditions:
The predefined sequence of different user terminals is mutually orthogonal;
The sequence that the length that the even bit of the predefined sequence of different user terminals is constituted is 12 is mutually orthogonal;
The sequence that the length that the odd bits of the predefined sequence of different user terminals are constituted is 12 is mutually orthogonal.
In addition, predefined sequence still keeps good peak-to-average force ratio in time domain after superimposed rows control information on a predetermined position.
After sending out predefined sequence, for receiving terminal, the odd bits (characterization in sequence can be utilized according to local sequence
Reference signal) channel estimation is carried out, then demodulate the valid data of even bit.And using different pre- between different user terminals
Defined nucleotide sequence is distinguished.
Example IV
On the basis of embodiment one, three, predefined sequence is described in detail in the present embodiment.
In the present embodiment, predefined sequence length N is more than 24.
It should be noted that:Predefined sequence, which can utilize described in embodiment three, passes through even length ZC sequences
It generates.
It can also be generated by the ZC sequence truncations to odd length, or pass through the ZC sequence loops expansion to odd length
Exhibition generates.
Wherein, the ZC sequences of odd length can be expressed as on frequency domain0≤n < X, wherein q
It is relatively prime with length X for motif column index.
For determining basic sequence, i.e., determining q values, the phase deflection sequence on frequency domain is represented by:WhereinFor the amount of phase rotation, α can be defined as the cyclic shift amount in time domain.
Such as N=36, it can be generated by the ZC sequences that length is X=31.
When practical application, it can choose therein arbitraryA by a basic sequence is respectively α by cyclic shift amountk,
αk+1,…,The Sequence composition predefined sequence set generated.With αkFor=6, then it can choose by a motif
Row are respectively 6,7 by cyclic shift amount ..., the 23 Sequence composition predefined sequences generated.
This 18 predefined sequences meet at least one the following conditions at this time:
The predefined sequence of different user terminals is mutually orthogonal;
The sequence that the length that the even bit of the predefined sequence of different user terminals is constituted is 18 is mutually orthogonal;
The sequence that the length that the odd bits of the predefined sequence of different user terminals are constituted is 18 is mutually orthogonal.
Embodiment five
On the basis of embodiment one, the sending method of reference signal and data is described in detail in the present embodiment.
Fig. 6 is the schematic diagram that user terminal sends SR and ACK/NACK message in 1 symbol simultaneously.
Assuming that W (n) is allocated to the predefined sequence for sending ACK/NACK message of user terminal, WSR(n) it is point
The predefined sequence for sending SR of provisioned user terminal.
W (n), WSR(n) it is that the QPSK machines of length N=24 select sequence.
When sending SR and ACK/NACK message simultaneously, sends ACK/NACK message predefined sequences and be defined as WSR(n).Its
In, WSR(n) SR is carried.
In conjunction with Fig. 6 as can be seen that after ACK/NACK (control information) message progress BPSK or QPSK modulation, after obtaining modulation
ACK/NACK message Sk, then by SkMultiply in predefined sequence WSR(n) even bit, i.e., in predefined sequence WSR(n) idol
Numerical digit modulates Sk, remaining sequence of points remains unchanged, i.e., the sequence of points of occasionally=odd bits remains unchanged, and is then mapped to frequency domain
It is sent in 24 continuous subcarriers.
Wherein, the machine for sending the QPSK of ACK/NACK message selects sequence to be represented by frequency domain0≤n < N, whereinIt can use the value in 1, -1,3, -3.Different basic sequencesValue is different.
For determining basic sequence, that is, determineValue, the phase deflection sequence on frequency domain are represented by:WhereinFor the amount of phase rotation, α can be defined as the cyclic shift amount in time domain.
After sending out predefined sequence, for receiving terminal, receiving terminal utilizes local sequence WSR(n) respectively carry out SR detection and
The detection (valid data of demodulation even bit) of ACK/NACK message.And different predefined sequences is used between different user terminals
Row are distinguished.Certainly, receiving terminal can carry out channel estimation using the odd bits (characterization reference signal) in sequence.
Embodiment six
On the basis of embodiment one, the sending method of reference signal and data is described in detail in the present embodiment.
Fig. 7 is that data (controlling information) are modulated at the predefined of length N=24 by user terminal on 2 symbols
The schematic diagram of Zadoff-Chu sequence even bit.
In conjunction with Fig. 7 as can be seen that after ACK/NACK message (control information) progress BPSK or QPSK modulation, after obtaining modulation
ACK/NACK message Sk, then by SkMultiply in predefined sequence W1(n)、W2(n) even bit, i.e., in predefined sequence W1(n)、
W2(n) even bit modulates Sk, remaining sequence of points remains unchanged, i.e. the sequence of points of odd bits remains unchanged, and is then mapped to frequency
It is sent in 24 continuous subcarriers in domain.
Wherein, W1(n)、W2(n) be length N=24 Zadoff-Chu sequence.
Here, mapped sub-carrier positions are in different frequency domain positions on each symbol, in this way, being conducive to obtain frequency division
Gain.
After sending out predefined sequence, for receiving terminal, it can be carried using odd number on each symbol according to local sequence
Wave (characterization reference signal) is used for channel estimation, then demodulates the valid data of even bit.And it is used between different user terminals
Different predefined sequences is distinguished.
When practical application, two symbols can be two independent symbols, and two symbols may be to be passed through by a symbol
Two symbols that division obtains are crossed, the division, which refers to, obtains shorter time-domain symbol using the subcarrier spacing of bigger.
Embodiment seven
On the basis of embodiment one, the sending method of reference signal and data is described in detail in the present embodiment.
Predefined sequence is mapped to for user terminal on 1 symbol the schematic diagram of frequency domain subcarrier at equal intervals in Fig. 8.
Assuming that the QPSK machines that W (n) is length N=12 select sequence, expression to distribute to user terminal for ACK/NACK to occur
The predefined sequence of message.
From figure 8, it is seen that after ACK/NACK message (control information) carries out BPSK or QPSK modulation, obtain modulated
ACK/NACK message Sk, then by SkMultiply the odd bits in predefined sequence W (n), i.e., it is equal in the odd bits of predefined sequence W (n)
Modulate Sk, remaining sequence of points remains unchanged, i.e. the sequence of points of even bit remains unchanged, and is then mapped to equally spaced 12 of frequency domain
It is sent on subcarrier, this mapping structure is conducive to send SRS in unmapped frequency domain position.
Embodiment eight
On the basis of embodiment one, the sending method of reference signal and data is described in detail in the present embodiment.
Fig. 9 is the predefined sequence that data (controlling information) are modulated at length N=12 by user terminal on 1 symbol
In 4 precalculated positions schematic diagram.
Assuming that 4 precalculated positions are the 1,4,7,10th sequence of points of predefined sequence.
In conjunction with Fig. 9 as can be seen that after ACK/NACK message (control information) progress BPSK or QPSK modulation, after obtaining modulation
ACK/NACK message Sk, then by SkMultiply the Isosorbide-5-Nitrae in predefined sequence W (n), 7,10 sequence of points, i.e., in predefined sequence
The 1,4,7,10th sequence of points of row W (n) modulates Sk, remaining sequence of points remains unchanged, and is then mapped to 12 companies of frequency domain
It is sent on continuous subcarrier.
Wherein, the QPSK machines that W (n) is length N=12 select sequence.
So in receiving terminal, it can be utilized respectively sequence of points position 0,2,3,5,6,8,9,11 according to local sequence and carry out letter
Road is estimated, Isosorbide-5-Nitrae, the modulation data in 7,10 sequence points are then demodulated.And using different between different user terminals
Predefined sequence is distinguished.The sequence that 1,4,7,10th sequence of points of the predefined sequence of different user terminals is constituted is mutually just
It hands over, the sequence that the 0th, 2,3,5,6,8,9,11 sequence of points of the predefined sequence of different user terminals is constituted is mutually orthogonal.
Embodiment nine
Figure 10 is that nine user terminal of the embodiment of the present invention is modulated data onto on 1 symbol in 3 groups of positions of predefined sequence
The schematic diagram set;Sequence length is N=12 in figure, and the bit number for sending information is 2bit, and the modulation system used is QPSK.
In Figure 10, sequence of points is divided into three groups, wherein sequence of points { 1,5,9 } is one group, and sequence of points { 2,6,10 } is one group,
Sequence of points { 3,7,11 } is one group, every group of upper identical modulation symbol of point modulation.Wherein every group of corresponding modulation symbol is respectively
sk1, sk2, sk3.Definition set { sk1,sk2,sk3, may be 00,01,10,11 determination rendezvous value according to the four of 2bit information kinds.
Wherein, { sk1,sk2,sk3Be { 1,1,1 }, { j, -1,-j }, { -1,1, -1 }, one of {-j, -1, j }, such as send 00 when, { sk1,
sk2,sk3It is { 1,1,1 }.
Different user terminals use the different cyclically shifted sequences of same basic sequence, and preferably, different user terminals
The difference of cyclic shift amount is A, and wherein A mod 3 are 1 or 2.At this time different user terminals sequence of points 1,2,3,5,6,7,
9,10,11 } sequence constituted is mutually orthogonal, and the sequence that { 0,4,8 } is constituted is mutually orthogonal.
In receiving terminal, can be demodulated using relevant detection.Specifically, in place using 0,4,8 institute of sequence of points in figure
Carry out channel estimation is set, then three groups of sequence of points are demodulated.Alternatively, because different user terminals use sequence mutually just
It hands over and still orthogonal after the upper modulation symbol of modulation, therefore receives end subscriber and can be judged by peak value according to noncoherent detection.
Further, receiving terminal can select receiving terminal detection method according to channel conditions, using relevant when such as high s/n ratio
Detection uses noncoherent detection when low signal-to-noise ratio, or using relevant and incoherent joint-detection.
Embodiment ten
This gives the sending methods when base station predefines multiple First rays to each user terminal.Work as hair
1 bit information is sent, when such as 1 bit ACK/nack message, base station is that user terminal defines two predefined sequences.It is described predefined
Sequence meets time-domain cyclic shift amount difference N/2.1 bit information of transmission that can be multiplexed in same frequency domain resource position at this time
Number of users is N/2.Such as N=12, defined nucleotide sequence is combined to (0,6), (1,7), (2,8), (3,9), (4,10), (5,11),
Different user terminals select different sequence pairs, for a certain specific user terminal when sending ACK, NACK using in sequence pair
One transmission.
It should be noted that the value in above-mentioned bracket is the time-domain cyclic shift amount based on a certain sequence.
When sending 2 bit informations, base station is that user terminal defines four First rays, the time domain cyclic of any two sequence
The difference of shift amount is the integral multiple of N/4.Such as N=12, defined nucleotide sequence is combined to (0,3,6,9), (Isosorbide-5-Nitrae, 7,10), (2,
5,8,11), different user terminals select different sequence pairs, and a certain specific user terminal is selected according to the 2bit information of transmission
Select a transmission in sequence pair.
When determining multiple first predefined sequences using this embodiment, receiving end subscriber can pass through according to noncoherent detection
Peak value is judged, or realizes relevant detection by carrying out channel estimation to partial sequence point position.
When defining multiple First rays, it is preferable that the first modulation symbol described in the embodiment of the present invention or the modulation of G groups
Symbol is 1.
Embodiment 11
The method of embodiment to realize the present invention, the present embodiment provides a kind of sender units, can be arranged in user
Terminal, as shown in figure 11, described device includes:
Acquiring unit 111, for obtaining the First ray that length is N;N is positive integer;
Modulation unit 112, modulates the first modulation symbol on the M position by the First ray, or by institute
M position for stating First ray is divided into G groups, and identical modulation symbol is modulated in every group;The first modulation symbol characterization is adjusted
Signal after system;The modulation symbol characterizes modulated signal;M is the positive integer less than N;G is whole equal to or more than 2
Number, and G is equal to or less than N;
Transmission unit 113, for sending with first modulation symbol on transmission symbol or being adjusted with the G groups
The First ray of symbol processed.
Wherein, the acquiring unit 111, is specifically used for:
When sending SR and ACK and a period of time in NACK message simultaneously, using the corresponding sequences of the SR as described first
Sequence.I.e. SR sequences are as the First ray.
The transmission unit 113, is specifically used for:
First ray with first modulation symbol or with the G groups modulation symbol is mapped in the N of frequency domain
It is sent in a continuous subcarrier;
Alternatively,
First ray with first modulation symbol or with the G groups modulation symbol is mapped between frequency domain etc.
Every N number of discontinuous subcarrier on send.
In one embodiment, which can also include:
Scrambling unit, for the First ray with first modulation symbol or with the G groups modulation symbol
Carry out cell level scrambling processing;
Correspondingly, the transmission unit 113, for sending being adjusted with described first after scrambling on the transmission symbol
Symbol processed or First ray with the G groups modulation symbol.
When practical application, acquiring unit 111, modulation unit 112 and scrambling unit can be by the processing in sender unit
Device (such as central processing unit (CPU, Central Processing Unit), microprocessor (MCU, Micro Control
Unit), digital signal processor (DSP, Digital Signal Processor) or programmable logic array (FPGA,
Field-Programmable Gate Array) etc.) realize;The transmission unit 113 can be by the receipts in sender unit
Hair machine is realized.
The method of embodiment to realize the present invention, the present embodiment additionally provide a kind of signal receiving device, can be arranged
Base station, as shown in figure 12, which includes:
Receiving unit 121, for receiving the First ray with first modulation symbol on transmission symbol;Band is
The First ray for stating the first modulation symbol is obtained after modulating the first modulation symbol on M position of the length for the First ray of N
It arrives;N is positive integer;
Demodulating unit 122, the sequence for the M position using the First ray with first modulation symbol click through
Row demodulation, obtains the first modulation symbol;First modulation symbol characterizes modulated signal;M is the positive integer less than N.
Alternatively, receiving unit 121, for receiving the First ray with G group modulation symbols on transmission symbol;Band is
The First ray for stating G group modulation symbols is M position of the First ray that length is N to be divided into G groups, and modulate phase in every group
With what is obtained after modulation symbol;N is positive integer;G is the integer equal to or more than 2, and G is equal to or less than N;The modulation
The modulated signal of symbolic representation;
Demodulating unit 122, the sequence for the M position using the First ray with the G groups modulation symbol click through
Row demodulation, obtains G group modulation symbols;M is the positive integer less than N.
Alternatively, receiving unit 121, for being received on transmission symbol with the first modulation symbol or carrying the G groups
The First ray of modulation symbol;First ray with first modulation symbol is M position of the First ray that length is N
On modulate and obtain after the first modulation symbol;First ray with the G groups modulation symbol is the first sequence for N by length
M position of row is divided into G groups, and modulates in every group and obtain after identical modulation symbol;N is positive integer;M is just less than N
Integer;G is the integer equal to or more than 2, and G is equal to or less than N;
Demodulating unit 122, it is incoherent for being carried out using all sequences point of the First ray with corresponding modulation symbol
Demodulation, obtains corresponding modulation symbol.
Wherein, which can also include:
Channel estimating unit 123, for using with first modulation symbol or with the G groups modulation symbol
The sequence of points of other positions in First ray in addition to M position carries out channel estimation.
Wherein, the demodulating unit 122, is specifically used for:
When sending SR and ACK and a period of time in NACK message simultaneously, using with first modulation symbol or band
There is the sequence of points of M position of the SR sequences of the G groups modulation symbol to be demodulated, obtains the first modulation symbol.
The receiving unit 121, is specifically used for:
It is received in N number of continuous subcarrier of frequency domain with first modulation symbol or with G groups modulation symbol
Number First ray;
Alternatively,
With first modulation symbol or the G is carried in the equally spaced N number of discontinuous received over subcarriers of frequency domain
The First ray of group modulation symbol.
In one embodiment, which can also include:
Descrambling unit, for the First ray with first modulation symbol or with the G groups modulation symbol
Carry out cell-level scramble process.
When practical application, the receiving unit 121 can be by the transceiver implementation in signal receiving device, the demodulating unit
122, channel estimating unit 123 and Descrambling unit can by signal receiving device processor (such as CPU, MCU, DSP or
FPGA etc.) it realizes.
Correspondingly, the method for embodiment, the present embodiment additionally provide a kind of signal transmission system to realize the present invention, such as scheme
Shown in 13, which includes:
Transmitting terminal 131, for obtaining the First ray that length is N;Here, N is positive integer.Step 302:The transmitting terminal
It is adjusted in every group in the first modulation symbol being modulated on M position of the First ray or G groups that M position is divided into
Make identical modulation symbol;Corresponding modulation symbol characterizes modulated signal;M is the positive integer less than N;G is to be equal to or greatly
In 2 integer, and G is equal to or less than N;And send the first sequence with the corresponding modulation symbol on transmission symbol
Row;
Receiving terminal 132, for receiving the First ray with the corresponding modulation symbol on transmission symbol;Using with
The sequence of points of M position of the First ray of the corresponding modulation symbol carries out demodulation or carries out non-phase using all sequences point
Dry demodulation, obtains corresponding modulation symbol.
When practical application, transmitting terminal 131 can be user terminal, and correspondingly, receiving terminal 132 can be base station.
It should be noted that:The concrete function of transmitting terminal 131 and receiving terminal 132 is as detailed above, and which is not described herein again.
It should be understood by those skilled in the art that, the embodiment of the present invention can be provided as method, system 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 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 with reference to according to the method for the embodiment of the present invention, the flow of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that can be realized by computer program instructions every first-class in flowchart and/or the block diagram
The combination of flow and/or box in journey and/or box and flowchart and/or the block diagram.These computer programs can be provided
Instruct the processor of all-purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine so that the instruction executed by computer or the processor of other programmable data processing devices is generated for real
The device for the function of being specified in present one flow of flow chart or one box of multiple flows and/or block diagram or multiple boxes.
These computer program instructions, which may also be stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that instruction generation stored in the computer readable memory includes referring to
Enable the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one box of 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 count
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, in computer or
The instruction executed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows 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 (47)
1. a kind of signaling method, which is characterized in that the method includes:
Obtain the First ray that length is N;N is positive integer;
The first modulation symbol will be modulated on M position of the First ray;The first modulation symbol characterization is modulated
Signal;M is the positive integer less than N;The First ray with first modulation symbol is sent on transmission symbol;Alternatively, will
M position of the First ray is divided into G groups, and identical modulation symbol is modulated in every group;The modulation symbol characterization modulation
Signal afterwards;G is the integer equal to or more than 2, and G is equal to or less than N;It is sent on transmission symbol and carries the G groups
The First ray of modulation symbol.
2. according to the method described in claim 1, it is characterized in that, the M position is the even order of the First ray
Point position, or the odd numbered sequences point position for the First ray.
3. according to the method described in claim 2, it is characterized in that, the M position is all even numbers of the First ray
The subset of point position.
4. according to the method described in claim 2, it is characterized in that, the M position is all odd numbers of the First ray
The subset of point position.
5. according to the method described in claim 1, it is characterized in that, the First ray, which is the second sequence, passes through different frequency domain phases
The First ray that position rotation obtains and/or described is what the second sequence was obtained by different sequential cyclic shifts;Wherein,
The amplitude of second sequence is non-zero constant, and the length of second sequence is N.
6. according to the method described in claim 5, it is characterized in that, second sequence be Zadoff-Chu sequence, Huo Zheyou
Zadoff-Chu sequence converts to obtain.
7. according to the method described in claim 6, it is characterized in that, second sequence is obtained by Zadoff-Chu sequence truncation
, or obtained by Zadoff-Chu sequence cyclic extensions.
8. according to the method described in claim 5, it is characterized in that, second sequence is by quadrature phase shift keying QPSK phases
The machine that modulation obtains selects sequence.
9. according to the method described in claim 5, it is characterized in that, the First ray is followed by the second sequence by different sequential
When ring shifts to obtain, the First ray is included in arrangement set, comprising K by second sequence in the arrangement set
The sequence obtained by different sequential cyclic shifts;K is positive integer, and
10. according to the method described in claim 9, it is characterized in that, when N is even number, the arrangement set is described second
Sequence is respectively by cyclic shift amountInstitute's formation sequence constitutes the subset of set;αkGreatly
In null integer.
11. according to the method described in claim 9, it is characterized in that, when N is odd number, the arrangement set is described second
Sequence is respectively by cyclic shift amountInstitute's formation sequence constitutes the subset of set;αk
Integer more than or equal to zero.
12. according to the method described in claim 9, it is characterized in that, when N is even number, K sequence meets the following conditions at least
One of:
Different sequences are mutually orthogonal;
The sequence that the length that not homotactic even bit is constituted is N/2 is mutually orthogonal;
The sequence that the length that not homotactic odd bits are constituted is N/2 is mutually orthogonal.
13. according to the method described in claim 6, it is characterized in that, when second sequence is Zadoff-Chu sequence, N is
12 or be 24 or be 36.
14. according to the method described in claim 8, it is characterized in that, N is 12 or is 24.
15. according to the method described in claim 1, it is characterized in that, ACK or NACK that first modulation symbol is modulation disappear
Breath or data information.
16. according to the method for claim 15, which is characterized in that when sending ACK the or NACK message of 1 bit, by institute
It states and modulates the first modulation symbol on M position of First ray, first modulation symbol is by binary phase shift keying
The modulated ACK or NACK message of BPSK.
17. according to the method for claim 15, which is characterized in that when sending ACK the or NACK message of 2 bits, by institute
It states and modulates the first modulation symbol on M position of First ray, first modulation symbol is by the modulated ACK of QPSK
Or NACK message.
18. according to the method described in claim 1, it is characterized in that, when send be more than or equal to 2 bit message when, by institute
M position for stating First ray is divided into G groups, and every group is modulated identical modulation symbol.
19. according to the method for claim 18, which is characterized in that when sending the message of 2 bits, by the First ray
M position be divided into three groups, every group is modulated identical modulation symbol.
20. according to the method for claim 19, which is characterized in that three groups of modulation symbols are { sG1,sG2,sG3, wherein
sG1For the corresponding modulation symbol in first group of position, sG2For the corresponding modulation symbol in second group of position, sG3It is corresponded to for third group position
Modulation symbol;
{sG1,sG2,sG3Value be { 1,1,1 }, { j, -1,-j }, { -1,1, -1 }, one of {-j, -1, j }, alternatively, { sG1,sG2,
sG3Value be { 1,1,1 }, { -1, -1, -1 }, { j, j, j }, one of {-j,-j,-j };Wherein, j indicates unit imaginary number.
21. according to the method for claim 20, which is characterized in that N=12, M=9, in the First ray index for 1,
5,9 } sequence of points is first group, and it is second group that index, which is the sequence of points of { 2,6,10 }, in the First ray, first sequence
It is third group that index, which is the sequence of points of { 3,7,11 }, in row.
22. according to the method described in claim 5, it is characterized in that, when sending 1 bit message, two First rays are determined,
The time-domain cyclic shift amount of described two First rays differs N/2.
23. according to the method described in claim 5, it is characterized in that, when sending 2 bit message, four First rays are determined,
The difference of the time-domain cyclic shift amount of any two sequence is the integral multiple of N/4 in four First rays.
24. the method according to claim 22 or 23, which is characterized in that the first modulation symbol that the First ray carries
G group modulation symbols for 1 or First ray carrying are 1.
25. according to the method described in claim 1, it is characterized in that, scheduling request SR and ACK and NACK message ought be sent simultaneously
In for the moment, the First ray be the corresponding sequences of the SR.
26. according to the method described in claim 1, it is characterized in that, described sent on transmission symbol is adjusted with described first
The First ray of symbol processed sends the First ray with G groups modulation, including:
First ray with first modulation symbol or with the G groups modulation symbol is mapped in N number of company of frequency domain
It is sent on continuous subcarrier;
Alternatively,
It is equally spaced that First ray with first modulation symbol or with the G groups modulation symbol is mapped in frequency domain
It is sent on N number of discontinuous subcarrier.
27. according to the method described in claim 1, it is characterized in that, when it is described transmission symbol number be at least two when,
The First ray with first modulation symbol is sent on each transmission symbol.
28. according to the method for claim 27, which is characterized in that each to transmit the corresponding First ray difference of symbol.
29. according to the method for claim 27, which is characterized in that difference transmission symbol mapped frequency domain position is different.
30. according to the method described in claim 1, it is characterized in that, being directed to different transmitting terminals, corresponding First ray is not
Together, or transmission symbol mapped frequency domain position is different.
31. according to the method described in claim 1, it is characterized in that, being sent on transmission symbol with the first modulation symbol
Number or when First ray with the G groups modulation symbol, the method further includes:
First ray with first modulation symbol or with the G groups modulation symbol is carried out at cell level scrambling
Reason;
Correspondingly, being adjusted with first modulation symbol or with the G groups after scrambling is sent on the transmission symbol
The First ray of symbol processed.
32. a kind of signal acceptance method, which is characterized in that the method includes:
The First ray with the first modulation symbol is received on transmission symbol;First ray with first modulation symbol
It is to be obtained after modulating the first modulation symbol on M position of the length for the First ray of N;N is positive integer;Using band
The sequence of points for stating M position of the First ray of the first modulation symbol is demodulated, and the first modulation symbol is obtained;Described first adjusts
The modulated signal of symbolic representation processed;M is the positive integer less than N;Alternatively,
The First ray with G group modulation symbols is received on transmission symbol;First ray with the G groups modulation symbol is
The M position of First ray that length is N is divided into G groups, and modulates in every group and obtains after identical modulation symbol;N is just
Integer;G is the integer equal to or more than 2, and G is equal to or less than N;The modulation symbol characterizes modulated signal;Profit
It is demodulated with the sequence of points of M position of the First ray with the G groups modulation symbol, obtains G group modulation symbols;M is
Positive integer less than N;Alternatively,
The First ray with the first modulation symbol or with the G groups modulation symbol is received on transmission symbol;Band is
The First ray for stating the first modulation symbol is obtained after modulating the first modulation symbol on M position of the length for the First ray of N
It arrives;First ray with the G groups modulation symbol is that M position of the First ray that length is N is divided into G groups, and often
It modulates in group and obtains after identical modulation symbol;N is positive integer;M is the positive integer less than N;G is equal to or more than 2
Integer, and G is equal to or less than N;Incoherent solution is carried out using all sequences point of the First ray with corresponding modulation symbol
It adjusts, obtains corresponding modulation symbol.
33. according to the method for claim 32, which is characterized in that the M position is the even number sequence of the First ray
Row point position, or the odd numbered sequences point position for the First ray.
34. according to the method for claim 32, which is characterized in that the method further includes;
Using in the First ray with first modulation symbol or with the G groups modulation symbol in addition to M position
The sequence of points of other positions carries out channel estimation.
35. according to the method for claim 32, which is characterized in that when sending it in SR and ACK and NACK message simultaneously
For the moment, the utilization carries M position of first modulation symbol or the First ray with the G groups modulation symbol
Sequence of points is demodulated, and is obtained the first modulation symbol and is included:
Utilize the sequence of points of M position of the SR sequences with first modulation symbol or with the G groups modulation symbol
It is demodulated, obtains the first modulation symbol.
36. according to the method for claim 32, which is characterized in that described received on transmission symbol is adjusted with described first
Symbol processed or First ray with the G groups modulation symbol, including:
It is received with first modulation symbol or with the G groups modulation symbol in N number of continuous subcarrier of frequency domain
First ray;
Alternatively,
In the equally spaced N number of discontinuous received over subcarriers of frequency domain with first modulation symbol or with G groups tune
The First ray of symbol processed.
37. according to the method for claim 32, which is characterized in that be directed to different transmitting terminals, corresponding First ray is not
Together, or transmission symbol mapped frequency domain position is different.
38. according to the method for claim 35, which is characterized in that the method further includes:
First ray with first modulation symbol or with the G groups modulation symbol is carried out at cell-level descrambling
Reason.
39. a kind of sender unit, which is characterized in that described device includes:
Acquiring unit, for obtaining the First ray that length is N;N is positive integer;
Modulation unit, modulates the first modulation symbol on the M position by the First ray, or by first sequence
M position of row is divided into G groups, and identical modulation symbol is modulated in every group;First modulation symbol characterizes modulated letter
Number;The modulation symbol characterizes modulated signal;M is the positive integer less than N;G is integer equal to or more than 2, and G etc.
In or less than N;
Transmission unit, for being sent on transmission symbol with first modulation symbol or carrying the G groups modulation symbol
First ray.
40. device according to claim 39, which is characterized in that the acquiring unit is specifically used for:
When sending SR and ACK and a period of time in NACK message simultaneously, using the corresponding sequences of the SR as the First ray.
41. device according to claim 39, which is characterized in that the transmission unit is specifically used for:
First ray with first modulation symbol or with the G groups modulation symbol is mapped in N number of company of frequency domain
It is sent on continuous subcarrier;
Alternatively,
It is equally spaced that First ray with first modulation symbol or with the G groups modulation symbol is mapped in frequency domain
It is sent on N number of discontinuous subcarrier.
42. device according to claim 39, which is characterized in that described device further includes:
Scrambling unit, for being carried out to the First ray with first modulation symbol or with the G groups modulation symbol
The processing of cell level scrambling;
Correspondingly, the transmission unit carries first modulation symbol for being sent on the transmission symbol after scrambling
Or the First ray with the G groups modulation symbol.
43. a kind of signal receiving device, which is characterized in that described device includes:
Receiving unit, for receiving the First ray with the first modulation symbol on transmission symbol;With first modulation
The First ray of symbol is obtained after modulating the first modulation symbol on M position of the length for the First ray of N;N is just
Integer;
Demodulating unit, the sequence of points for the M position using the First ray with first modulation symbol are demodulated,
Obtain the first modulation symbol;First modulation symbol characterizes modulated signal;M is the positive integer less than N;Alternatively,
Receiving unit, for receiving the First ray with G group modulation symbols on transmission symbol;It modulates and accords with the G groups
Number First ray be the M position of First ray that length is N to be divided into G groups, and identical modulation symbol is modulated in every group
It obtains afterwards;N is positive integer;G is the integer equal to or more than 2, and G is equal to or less than N;The modulation symbol characterization is adjusted
Signal after system;
Demodulating unit, the sequence of points for the M position using the First ray with the G groups modulation symbol are demodulated,
Obtain G group modulation symbols;M is the positive integer less than N;Alternatively,
Receiving unit, for receiving the first sequence with the first modulation symbol or with G group modulation symbols on transmission symbol
Row;First ray with first modulation symbol is to modulate the first modulation on M position of the length for the First ray of N
It is obtained after symbol;First ray with the G groups modulation symbol is that M position of the First ray that length is N is divided into G
Group, and modulate in every group and obtain after identical modulation symbol;N is positive integer;M is the positive integer less than N;G be equal to or
Integer more than 2, and G is equal to or less than N;
Demodulating unit is obtained for carrying out non-coherent demodulation using all sequences point of the First ray with corresponding modulation symbol
To corresponding modulation symbol.
44. device according to claim 43, which is characterized in that described device further includes:
Channel estimating unit, for using with first modulation symbol or the first sequence with the G groups modulation symbol
The sequence of points of other positions in row in addition to M position carries out channel estimation.
45. device according to claim 43, which is characterized in that the demodulating unit is specifically used for:
When send simultaneously in SR and ACK and NACK message for the moment, using with first modulation symbol or band
The sequence of points for stating M position of the SR sequences of G group modulation symbols is demodulated, and corresponding modulation symbol is obtained.
46. device according to claim 43, which is characterized in that the receiving unit is specifically used for:
It is received with first modulation symbol or with the G groups modulation symbol in N number of continuous subcarrier of frequency domain
First ray;
Alternatively,
In the equally spaced N number of discontinuous received over subcarriers of frequency domain with first modulation symbol or with G groups tune
The First ray of symbol processed.
47. device according to claim 43, which is characterized in that described device further includes:
Descrambling unit, for being carried out to the First ray with first modulation symbol or with the G groups modulation symbol
Cell-level scramble process.
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