CN107786314A - A kind of method and apparatus in radio communication - Google Patents
A kind of method and apparatus in radio communication Download PDFInfo
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- CN107786314A CN107786314A CN201610744473.1A CN201610744473A CN107786314A CN 107786314 A CN107786314 A CN 107786314A CN 201610744473 A CN201610744473 A CN 201610744473A CN 107786314 A CN107786314 A CN 107786314A
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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
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
- H04L5/0055—Physical resource allocation for ACK/NACK
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
Abstract
The invention discloses the method and apparatus in a kind of radio communication.Base station sends the first wireless signal in the first frequency domain resource in very first time window.Wherein, first wireless signal is generated by First ray, and first wireless signal is used for determining first foundation sequence.The first foundation sequence be used to generate the first reference sequences.The very first time window includes X1 time interval, and the time span of the X1 time interval is configurable.First wireless signal being generated respectively by X1 subsequence in the X1 time interval.The X1 subsequence corresponds with X1 sub- reference sequences respectively.The correlation for the sequence that the element of correspondence position is formed is less than 1 in sequence that element among the adjacent subsequence of any two is formed and first reference sequences.Method disclosed by the invention can reduce the synchronous complexity of user equipment, and keep the good autocorrelation and cross correlation of synchronizing signal.
Description
Technical field
The present invention relates to the transmission plan in the wireless communication system for supporting a variety of mathematical and physical structures (Numerology), especially
It is the method and apparatus for being related to synchronous transmission of signal.
Background technology
The increasingly diversification of the application scenarios of future broadband wireless communication systems, different application scenarios propose difference to system
Performance requirement.In order to meet the different performance requirements of plurality of application scenes, in 3GPP (3rd Generation Partner
Project, third generation cooperative partner program) in RAN (Radio Access Network, wireless access network) #72 plenary session certainly
It is fixed that new technology (NR, New Radio) of eating dishes without rice or wine is studied.
In order to a variety of different application scenarios of flexible adaptation, following wireless communication system, particularly NR can be with
Support a variety of mathematical and physical structures (Numerology), a variety of mathematical and physical structures refer to more subcarrier spacings, a variety of symbol time length,
A variety of CP (Cyclic Prefix, cyclic prefix) length etc..Answered in order to simplify the design of system with what user equipment was realized
Miscellaneous degree, for different mathematical and physical structures, whole system physical layer design is preferably able to use a kind of unified structure.
The content of the invention
In a wireless communication system, user equipment (UE, User Equipment) needs to detect base station equipment and and base
Station equipment synchronizes over time and frequency, then can just carry out follow-up operation.This signal detection and time and frequency
Rate is synchronously all completed by synchronizing signal, while can also be used to indicating cell according to the difference of design, synchronizing signal
Mark, TRP (Transmitting Receiving Point) marks, antenna opening mark, wave beam mark, FDD/TDD are distinguished, son
The information such as frame/wireless frame timing.The introducing of a variety of different mathematical and physical structures may cause a variety of different synchronization waveforms
Occur, but because user equipment is not aware that any mathematical and physical structure configuration information before synchronization, in order to detect letter
Number and and base station equipment it is synchronous over time and frequency, user equipment needs to carry out largely, for different mathematical and physical structures
The blind check of synchronizing signal, this can greatly increase the complexity and cost of user equipment, while also result in the complexity of system design.
The problem of causing a variety of different synchronization waveforms for a variety of different mathematical and physical structures, the invention provides solution
Certainly scheme.Using the solution of the present invention, the synchronizing signal of base station generation has close to identical under different mathematical and physical structures
Waveform configuration, thus user equipment only need to carry out signal detection and temporal frequency for a kind of synchronization waveform it is synchronous,
Greatly reduce the complexity of user equipment.It should be noted that in the case where not conflicting, the UE (User of the application
Equipment, user equipment) in embodiment and embodiment in feature may apply in base station, vice versa.Further
, in the case where not conflicting, the feature in embodiments herein and embodiment can be arbitrarily mutually combined.
The invention discloses a kind of method being used in synchronous base station, wherein, comprise the following steps：
- step A. sends the first wireless signal in the first frequency domain resource in very first time window.
Wherein, first wireless signal is generated by First ray, and first wireless signal is used for determining the first base
Plinth sequence.The first foundation sequence be used to generate the first reference sequences.The length of the First ray is equal to described first
The length of reference sequences.The very first time window includes X1 time interval, and the X1 is positive integer, between the X1 time
Every time span be configurable and related to subcarrier spacing.First wireless signal is in the X1 time interval
Part generated respectively by X1 subsequence.Join respectively with X1 son position of the X1 subsequence in the First ray
Examine position of the sequence in the first reference sequences to correspond, the correlation of the subsequence and the corresponding sub- reference sequences
For 1.The sequence and described first that element among the adjacent subsequence of any two in the First ray is formed
The correlation for the sequence that the element of correspondence position is formed is less than 1 in reference sequences.
As one embodiment, the configuration of time span and subcarrier spacing based on X1 time interval, described first
Wireless signal is maintained close to identical waveform, while the presence of the element among the adjacent subsequence of any two is not yet
The good autocorrelation and cross correlation of the first foundation sequence can be destroyed, ensure that synchronous performance.
As one embodiment, the length of sequence refers to：The quantity of element in sequence.
As one embodiment, the correlation of two sequences refers to the phase between the corresponding element of described two sequences
Pass degree.As a sub- embodiment, the correlation of two sequences refers to that the corresponding element in described two sequences is complete for 1
Total correlation；As another sub- embodiment, the correlation of two sequences refers to two mutually corresponding elements be present less than 1
It is independent.
As one embodiment, two sequence a (0), a (1), a (2) ..., a (U) and b (0), b (1), b (2) ..., b (U)
Correlation be to be completed by following formula:
Wherein R (a, b) represents sequence a and sequence b correlation function, and U is greater than or equal to 0 integer.
As one embodiment, two sequence a (0), a (1), a (2) ..., a (U) and b (0), b (1), b (2) ..., b (U)
Correlation be to be completed by following formula:
Wherein R (a, b) represents sequence a and sequence b correlation function, and U is greater than or equal to 0 integer, ⊙ symbologies
Same or operation.
As one embodiment, the first foundation sequence is a sequence of complex numbers.
As one embodiment, the first foundation sequence is a sequence of real numbers.
As one embodiment, the first foundation sequence is ZC (Zadoff-Chu) sequence.
As one embodiment, the first foundation sequence is that a ZC sequence passes through the sequence that cutting obtains.
As one embodiment, the first foundation sequence is a ZC sequence by mending 0 obtained sequence.
As one embodiment, the first foundation sequence is that a ZC sequence passes through the sequence that cyclic extensions obtain.
As one embodiment, the first foundation sequence is that a ZC sequence passes through the sequence that cyclic shift obtains.
As one embodiment, the first foundation sequence is that a ZC sequence first passes through cyclic extensions again by circulation shifting
The sequence that position obtains.
As one embodiment, the first foundation sequence is the ZC sequences that a length is 63.
As one embodiment, the first foundation sequence is a m-sequence.
As one embodiment, the first foundation sequence is that a m-sequence passes through the sequence that cyclic shift obtains.
As one embodiment, the first foundation sequence is the scrambled obtained sequence of a m-sequence.
As one embodiment, the first foundation sequence is the sequence that a m-sequence scrambles to obtain again by cyclic shift
Row.
As one embodiment, the first foundation sequence and first reference sequences are identicals.
As one embodiment, the correlation of the first foundation sequence and first reference sequences is 1.
As one embodiment, the correlation of the first foundation sequence and first reference sequences is 0.
As one embodiment, the length of the first foundation sequence and the length of first reference sequences are identical
's.
As one embodiment, the length of the first foundation sequence is different from the length of first reference sequences
's.
As one embodiment, any two time interval in the X1 time interval is discontinuous.
As one embodiment, any two time interval in the X1 time interval is orthogonal in time domain
(i.e. not overlapping).
As one embodiment, the time span of the X1 time interval is identical.
As one embodiment, the time span in the X1 time interval in the presence of two time intervals is different.
As one embodiment, any 1 time interval in the X1 time interval is 1 OFDM symbol, described
OFDM symbol includes basic symbol and CP.
As one embodiment, all time intervals in the X1 time interval are in first frequency domain resource
Subcarrier spacing is identical.
Two time intervals be present in first frequency domain resource as one embodiment, in the X1 time interval
Subcarrier spacing be different.
The time span and son load of a time interval as one embodiment, in the X1 time interval at least be present
Wave spacing is linear inverse proportion.
As one embodiment, the subcarrier spacing of any one time interval in the X1 time interval is
P times of 3.75kHz, the P are 2 nonnegative integer power.
As one embodiment, first frequency domain resource includes DC (Direct Current, direct current) subcarrier.
As one embodiment, first wireless signal is master sync signal (PSS).
As one embodiment, first wireless signal is auxiliary synchronous signals (SSS).
Specifically, according to an aspect of the present invention, the above method is characterised by, the step A also includes following step
Suddenly：
- step A0. sends the first signaling.
Wherein, first signaling is used for determining the { time span of the X1 time interval, at described X1
Between the subcarrier spacing that is spaced at least one of.
As one embodiment, first signaling is high-level signaling.
As one embodiment, first signaling is physical layer signaling.
As one embodiment, first signaling is physical layer signaling, and it is wireless that first signaling includes described first
The schedule information of signal, the schedule information are included in { shared running time-frequency resource, MCS, RV, NDI, HARQ process numbers } extremely
It is one of few.
As one embodiment, first signaling explicitly indicate the time span of the X1 time interval, it is described
At least one of the subcarrier spacing of X1 time interval }..
As one embodiment, first signaling includes the default configuration of the time span of the X1 time interval.
As one embodiment, the default of subcarrier spacing that first signaling includes the X1 time interval is matched somebody with somebody
Put.
As one embodiment, first signaling implicitly indicate the time span of the X1 time interval, it is described
At least one of the subcarrier spacing of X1 time interval }.
Specifically, according to an aspect of the present invention, the above method is characterised by, the step A also includes following step
Suddenly：
- step A1. generates first reference sequences.
Wherein, in { time-domain position of the very first time window, the frequency domain position of first frequency domain resource, the first mark }
At least one of be used to generating the first foundation sequence, the first foundation sequence generates described the by Q times of over-sampling
One reference sequences, the Q are positive integer；Or the first foundation sequence generates described first by cyclic shift and refers to sequence
Row.First mark is integer, and first mark includes { sending the cell ID of first wireless signal, sending institute
The TRP marks of the first wireless signal are stated, the TRP groups mark of first wireless signal is sent, sends first wireless signal
Wave beam mark at least one of.
As one embodiment, the Q times of over-sampling of sequence refers to：Each element expands to be formed by Q times in sequence
Length is Q times of new sequence.
As one embodiment, the Q is equal to 1, i.e., described first foundation sequence and first reference sequences are identical
's.
As a sub- embodiment of above-described embodiment, { time-domain position of the very first time window, the first frequency domain money
The frequency domain position in source } at least one of be used for determining the relation of first reference sequences and the first foundation sequence.
As one embodiment, the cell ID for sending first wireless signal is PCID.
As one embodiment, the time-domain position of the very first time window is the very first time window in a subframe
(Subframe) time-domain position in.
As one embodiment, the time-domain position of the very first time window is wireless at one for the very first time window
Time-domain position in frame (Radio Frame).
As one embodiment, the time-domain position of the very first time window is the very first time window in a time slot
Time-domain position in (Time Slot).
As one embodiment, the time-domain position of the very first time window is the very first time window in a superframe
Time-domain position in (Hyper Frame).
As one embodiment, the frequency domain position of first frequency domain resource is first frequency domain resource whole
Frequency domain position in system bandwidth.
As one embodiment, the frequency domain position of first frequency domain resource is first frequency domain resource at one
Frequency domain position in the group of same sub-carrier interval.
As one embodiment, the frequency domain position of first frequency domain resource is first frequency domain resource and channel
The frequency shift (FS) of grid (Channel Raster).
Specifically, according to an aspect of the present invention, the above method is characterised by, the first foundation sequence passes through Q
Times over-sampling generates first reference sequences and referred to：The first foundation sequence is generated by converting precoding and sequence extension
3rd sequence, the 3rd sequence generate first reference sequences by inverse transformation precoding, wherein the 3rd sequence
Length and the length of first reference sequences are identicals, and the length of the 3rd sequence is the first foundation sequence
Q times of length, the inverse transformation precoding for the conversion precoding inverse operation.
As one embodiment, sequence is referred to by the conversion precoding and inverse transformation precoding generation described first
Row can effectively keep the good autocorrelation and cross correlation of the first foundation sequence.
As one embodiment, the conversion precoding is DFT (Discrete Fourier Transform, discrete Fu
In leaf transformation) or FFT (Fast Fourier Transform, Fast Fourier Transform (FFT)).
As one embodiment, the inverse transformation precoding is IDFT (Inverse Discrete Fourier
) or IFFT (Inverse Fast Fourier Transform) Transform.
As one embodiment, described sequence extension refers to that sequence is mended 0 by both ends and is extended.
As one embodiment, described sequence extension refers to that sequence is expanded by the element in circulating repetition sequence
Exhibition.
Specifically, according to an aspect of the present invention, the above method is characterised by, the step A also includes following step
Suddenly：
- step A2. determines position of the X1 time interval in the very first time window.
Wherein, the very first time window is reserved for X1 wide-band modulation symbol successively in time domain；Or described first
Time window is reserved for first basic symbol and X2 wide-band modulation symbol successively in time domain, and the X2 is that the X1 is subtracted
1, the wide-band modulation symbol includes basic symbol and corresponding CP in time domain, each base in the very first time window
The time span of this symbol and corresponding CP time span are configurable, and between the subcarrier of the basic symbol
Every correlation.
As one embodiment, the time span of the different basic symbols has substantially no effect on the first wireless signal
Time domain waveform.
As one embodiment, CP is transmitted outside the X1 time interval corresponding to first basic symbol.
As one embodiment, the CP (Cyclic Prefix, cyclic prefix) is by the time domain of corresponding basic symbol
The afterbody of sampled point is formed before moving on to the corresponding basic symbol.
Specifically, according to an aspect of the present invention, the above method is characterised by, the X1 subsequence is in the X1
Individual time interval generates X1 frequency domain subsequence by conversion precoding successively, and the X1 frequency domain subsequence is successively in the X1
The X1 basic symbols in the modulation generation X1 time interval based on OFDM are carried out in individual time interval.
As one embodiment, the modulation based on OFDM does not include addition CP.
It is described to be realized based on OFDM modulation by inverse transformation precoding as one embodiment.
As one embodiment, the modulation based on OFDM is realized by IFFT.
As one embodiment, the modulation based on OFDM includes the serial to parallel conversion of sequence.
As one embodiment, the modulation based on OFDM includes time-domain filtering.
As one embodiment, the modulation based on OFDM includes frequency domain filtering.
As one embodiment, the modulation based on OFDM includes adding window (Windowing).
Specifically, according to an aspect of the present invention, the above method is characterised by, the step A also includes following step
Suddenly：
- step A3. generates the second sequence
Wherein described second sequence generates first reference sequences, second sequence by the inverse transformation precoding
The length of length and first reference sequences be identical, the time-domain position of the very first time window, it is described
The frequency domain position of first frequency domain resource, it is described first mark at least one of be used for determining second sequence.
As one embodiment, by the use of the inverse transformation precoding, the first reference can be generated by frequency domain
Sequence, so as to simplify agreement.
As one embodiment, second sequence is a sequence of complex numbers.
As one embodiment, second sequence is a sequence of real numbers.
As one embodiment, second sequence is ZC (Zadoff-Chu) sequence.
As one embodiment, second sequence is that a ZC sequence passes through the sequence that cutting obtains.
As one embodiment, second sequence is a ZC sequence by mending 0 obtained sequence.
Composition one embodiment, second sequence are that a ZC sequence passes through the sequence that over-sampling obtains, wherein sequence
In element be sampled point value.
As one embodiment, second sequence is that a ZC sequence passes through the sequence that cyclic extensions obtain.
As one embodiment, second sequence is that a ZC sequence passes through the sequence that cyclic shift obtains.
As one embodiment, second sequence first passes through cyclic extensions for a ZC sequence and obtained again by cyclic shift
The sequence arrived.
As one embodiment, second sequence is the ZC sequences that a length is 63.
As one embodiment, second sequence is to be obtained after the ZC sequences of a length 63 remove the 32nd element
Sequence.
As one embodiment, second sequence is that the ZC sequences that a length is 63 obtain by cyclic extensions or benefit 0
The sequence arrived.
As one embodiment, second sequence is removed after the 32nd element by following for the ZC sequences of a length 63
Ring extends or mended 0 obtained sequence.
As one embodiment, second sequence has a ZC sequences generation, and the root factor of the ZC sequences is
One of { 25,29,34 }.
As one embodiment, second sequence is a m-sequence.
As one embodiment, second sequence is that a m-sequence passes through the sequence that cyclic shift obtains.
As one embodiment, second sequence is the scrambled obtained sequence of a m-sequence.
As one embodiment, second sequence is the sequence that a m-sequence scrambles to obtain again by cyclic shift.
The invention discloses a kind of method being used in synchronous user equipment, wherein, comprise the following steps：
- step A. receives the first wireless signal in the first frequency domain resource in very first time window；
- step B. is based on first wireless signal and generates the 4th sequence；
4th sequence described in-step C. is done related to First ray.
Wherein, the 4th sequence is used for determining first foundation sequence, and the first foundation sequence is used for generation
One reference sequences, first reference sequences be used to generate the First ray.The length of the First ray is equal to described
The length of 4th sequence, the length of first reference sequences are equal to the length of the 4th sequence.The very first time
Window includes X1 time interval, and the X1 is positive integer, the time span of the X1 time interval be it is configurable and and
Subcarrier spacing is related.Part of the First ray in the X1 time interval is respectively used to generate X1 sub- sequences
Row.Position of the X1 subsequence in the First ray is respectively with X1 sub- reference sequences in the first reference sequences
Position corresponds, and the correlation of the subsequence and the corresponding sub- reference sequences is 1.It is any in the First ray
The element of correspondence position in sequence that element among two adjacent subsequences is formed and first reference sequences
The correlation of the sequence formed is less than 1.
As one embodiment, the 4th sequence is first wireless signal by sampling obtained sequence.
As one embodiment, the correlation refers to cross-correlation operation.
Specifically, according to an aspect of the present invention, the above method is characterised by, the step A also includes following step
Suddenly：
- step A0. receives the first signaling.
Wherein, first signaling is used for determining the { time span of the X1 time interval, at described X1
Between the subcarrier spacing that is spaced at least one of.
Specifically, according to an aspect of the present invention, the above method is characterised by, the step A also includes following step
Suddenly：
- step A1. generates first reference sequences.
Wherein, in { time-domain position of the very first time window, the frequency domain position of first frequency domain resource, the first mark }
At least one of be used to generating the first foundation sequence, the first foundation sequence generates described the by Q times of over-sampling
One reference sequences, the Q are positive integer；Or the first foundation sequence generates described first by cyclic shift and refers to sequence
Row.First mark is integer, and first mark includes { sending the cell ID of first wireless signal, sending institute
The TRP marks of the first wireless signal are stated, the TRP groups mark of first wireless signal is sent, sends first wireless signal
Wave beam mark at least one of.
Specifically, according to an aspect of the present invention, the above method is characterised by, the first foundation sequence passes through Q
Times over-sampling generates first reference sequences and referred to：The first foundation sequence is generated by converting precoding and sequence extension
3rd sequence, the 3rd sequence generate first reference sequences by inverse transformation precoding, wherein the 3rd sequence
Length and the length of first reference sequences are identicals, and the length of the 3rd sequence is the first foundation sequence
Q times of length, the inverse transformation precoding for the conversion precoding inverse operation.
Specifically, according to an aspect of the present invention, the above method is characterised by, the step A also includes following step
Suddenly：
- step A2. determines position of the X1 time interval in the very first time window.
Wherein, the very first time window is reserved for X1 wide-band modulation symbol successively in time domain；Or described first
Time window is reserved for first basic symbol and X2 wide-band modulation symbol successively in time domain, and the X2 is that the X1 is subtracted
1, the wide-band modulation symbol includes basic symbol and corresponding CP in time domain, each base in the very first time window
The time span of this symbol and corresponding CP time span are configurable, and between the subcarrier of the basic symbol
Every correlation.
Specifically, according to an aspect of the present invention, the above method is characterised by, the X1 subsequence is in the X1
Individual time interval generates X1 frequency domain subsequence by conversion precoding successively, and the X1 frequency domain subsequence is successively in the X1
The X1 basic symbols in the modulation generation X1 time interval based on OFDM are carried out in individual time interval.
Specifically, according to an aspect of the present invention, the above method is characterised by, the step A also includes following step
Suddenly：
- step A3. generates the second sequence
Wherein described second sequence generates first reference sequences, second sequence by the inverse transformation precoding
The length of length and first reference sequences be identical, the time-domain position of the very first time window, it is described
The frequency domain position of first frequency domain resource, it is described first mark at least one of be used for determining second sequence.
The present invention disclose it is a kind of be used for synchronous base station equipment, wherein, including following module：
First sending module：The first wireless signal is sent in the first frequency domain resource in very first time window.
Wherein, first wireless signal is generated by First ray, and first wireless signal is used for determining the first base
Plinth sequence.The first foundation sequence be used to generate the first reference sequences.The length of the First ray is equal to described first
The length of reference sequences.The very first time window includes X1 time interval, and the X1 is positive integer, between the X1 time
Every time span be configurable and related to subcarrier spacing.First wireless signal is in the X1 time interval
Part generated respectively by X1 subsequence.Join respectively with X1 son position of the X1 subsequence in the First ray
Examine position of the sequence in the first reference sequences to correspond, the correlation of the subsequence and the corresponding sub- reference sequences
For 1.The sequence and described first that element among the adjacent subsequence of any two in the First ray is formed
The correlation for the sequence that the element of correspondence position is formed is less than 1 in reference sequences.
Specifically, according to an aspect of the present invention, above-mentioned base station equipment is characterised by, first sending module is also
For sending the first signaling, first signaling is used for determining { time span of the X1 time interval, the X1
At least one of the subcarrier spacing of individual time interval }.
Specifically, according to an aspect of the present invention, above-mentioned base station equipment is characterised by, first sending module is also used
In generation first reference sequences.The time-domain position of the very first time window, the frequency domain position of first frequency domain resource,
First mark at least one of be used to generate the first foundation sequence, the first foundation sequence passes through Q times of over-sampling
First reference sequences are generated, the Q is positive integer；Or the first foundation sequence generates described by cyclic shift
One reference sequences.First mark is integer, and first mark includes { sending the cell mark of first wireless signal
Know, send the TRP marks of first wireless signal, send the TRP groups mark of first wireless signal, send described first
At least one of the wave beam mark of wireless signal }.
Specifically, according to an aspect of the present invention, above-mentioned base station equipment is characterised by, the first foundation sequence warp
Q times of over-sampling generation first reference sequences are crossed to refer to：The first foundation sequence is by converting precoding and sequence extension
The 3rd sequence is generated, the 3rd sequence generates first reference sequences by inverse transformation precoding, wherein the 3rd sequence
The length of row and the length of first reference sequences are identicals, and the length of the 3rd sequence is the first foundation
Q times of the length of sequence, the inverse transformation precoding are the inverse operation for converting precoding.
Specifically, according to an aspect of the present invention, above-mentioned base station equipment is characterised by, first sending module is also
For determining position of the X1 time interval in the very first time window.The very first time window in time domain successively by
Keep for X1 wide-band modulation symbol；Or the very first time window be reserved for successively in time domain first basic symbol and
X2 wide-band modulation symbol, the X2 are that the X1 subtracts 1, and the wide-band modulation symbol includes basic symbol and phase in time domain
The CP answered, the time span of each basic symbol in the very first time window and the corresponding CP time span is
Configurable, and it is related to the subcarrier spacing of the basic symbol.
Specifically, according to an aspect of the present invention, above-mentioned base station equipment is characterised by the X1 subsequence in institute
State X1 time interval and generate X1 frequency domain subsequence by conversion precoding successively, the X1 frequency domain subsequence is successively in institute
State the X1 basic symbols carried out in X1 time interval in the modulation generation X1 time interval based on OFDM.
Specifically, according to an aspect of the present invention, above-mentioned base station equipment is characterised by, first sending module is also
For generating the second sequence.Second sequence generates first reference sequences by the inverse transformation precoding, and described the
The length of the length of two sequences and first reference sequences is identical, { time-domain position of the very first time window, institute
State the frequency domain position of first frequency domain resource, first mark } at least one of be used for determining second sequence.
It is used for synchronous user equipment the invention discloses a kind of, wherein, including following module：
- the first receiving module：The first wireless signal is received in the first frequency domain resource in very first time window；
- first processing module：For generating the 4th sequence based on first wireless signal；
- Second processing module：Done for the 4th sequence to First ray related.
Wherein, the 4th sequence is used for determining first foundation sequence, and the first foundation sequence is used for generation
One reference sequences, first reference sequences be used to generate the First ray.The length of the First ray is equal to described
The length of 4th sequence, the length of first reference sequences are equal to the length of the 4th sequence.In the very first time window
Including X1 time interval, the X1 is positive integer, and the time span of the X1 time interval is configurable and carried with son
Wave spacing is related.Part of the First ray in the X1 time interval is respectively used to generate X1 subsequence.Institute
State position of the X1 subsequence in the First ray respectively with X1 positions of the sub- reference sequences in the first reference sequences
Correspond, the correlation of the subsequence and the corresponding sub- reference sequences is 1.Any two in the First ray
The element institute group of correspondence position in sequence that element among the adjacent subsequence is formed and first reference sequences
Into sequence correlation be less than 1.
Specifically, according to an aspect of the present invention, above-mentioned user equipment is characterised by, first receiving module is also
For receiving the first signaling, first signaling is used for determining { time span of the X1 time interval, the X1
At least one of the subcarrier spacing of individual time interval }.
Specifically, according to an aspect of the present invention, above-mentioned user equipment is characterised by, the Second processing module is also
For generating first reference sequences.{ time-domain position of the very first time window, the frequency domain position of first frequency domain resource
Put, first mark at least one of be used to generate the first foundation sequence, the first foundation sequence passes through Q times of mistake
Sampling generates first reference sequences, and the Q is positive integer；Or the first foundation sequence generates institute by cyclic shift
State the first reference sequences.First mark is integer, and first mark includes { sending the cell of first wireless signal
Mark, the TRP marks of first wireless signal are sent, send the TRP groups mark of first wireless signal, transmission described the
At least one of the wave beam mark of one wireless signal }.
Specifically, according to an aspect of the present invention, above-mentioned user equipment is characterised by, the first foundation sequence warp
Q times of over-sampling generation first reference sequences are crossed to refer to：The first foundation sequence is by converting precoding and sequence extension
The 3rd sequence is generated, the 3rd sequence generates first reference sequences by inverse transformation precoding, wherein the 3rd sequence
The length of row and the length of first reference sequences are identicals, and the length of the 3rd sequence is the first foundation
Q times of the length of sequence, the inverse transformation precoding are the inverse operation for converting precoding.
Specifically, according to an aspect of the present invention, above-mentioned user equipment is characterised by, the Second processing module is also
For determining position of the X1 time interval in the very first time window.The very first time window in time domain successively by
Keep for X1 wide-band modulation symbol；Or the very first time window be reserved for successively in time domain first basic symbol and
X2 wide-band modulation symbol, the X2 are that the X1 subtracts 1, and the wide-band modulation symbol includes basic symbol and phase in time domain
The CP answered, the time span of each basic symbol in the very first time window and the corresponding CP time span is
Configurable, and it is related to the subcarrier spacing of the basic symbol.
Specifically, according to an aspect of the present invention, above-mentioned user equipment is characterised by, the X1 subsequence is in institute
State X1 time interval and generate X1 frequency domain subsequence by conversion precoding successively, the X1 frequency domain subsequence is successively in institute
State the X1 basic symbols carried out in X1 time interval in the modulation generation X1 time interval based on OFDM.
Specifically, according to an aspect of the present invention, above-mentioned user equipment is characterised by, the Second processing module is also
For generating the second sequence.Second sequence generates first reference sequences by the inverse transformation precoding, and described the
The length of the length of two sequences and first reference sequences is identical, { time-domain position of the very first time window, institute
State the frequency domain position of first frequency domain resource, first mark } at least one of be used for determining second sequence.
The present invention has following major technique advantage：
- when base station is the transmission configuration difference mathematical and physical structure (Numerology) of synchronizing signal, transmitted is same
Step signal can be always maintained close to identical waveform, greatly reduce user equipment to do signal detection same with temporal frequency
Complexity during step.
- in the system based on OFDM, the insertion of cyclic prefix will not also destroy the sequence of generation synchronizing signal from phase
Closing property and cross correlation, ensure that synchronous performance.
Brief description of the drawings
By reading the detailed description made to non-limiting example made with reference to the following drawings, of the invention is other
Feature, objects and advantages will become more apparent：
Fig. 1 shows wireless signal downlink transfer flow chart according to an embodiment of the invention；
Fig. 2 shows very first time window schematic diagram according to an embodiment of the invention；
Fig. 3 shows the first frequency domain resource schematic diagram according to an embodiment of the invention；
Fig. 4 shows that first foundation sequence according to an embodiment of the invention is illustrated with the first reference sequences relation
Figure；
Fig. 5 shows that X1 subsequence according to an embodiment of the invention and the relation of X1 basic symbol are illustrated
Figure；
Fig. 6 shows the second sequence according to an embodiment of the invention and the first reference sequences relation schematic diagram；
Fig. 7 shows the structured flowchart of the processing unit in base station according to an embodiment of the invention；
Fig. 8 shows the structured flowchart of the processing unit in user equipment according to an embodiment of the invention (UE)；
Embodiment
Technical scheme is described in further detail below in conjunction with accompanying drawing, it is necessary to explanation is, do not rushed
In the case of prominent, the feature in embodiments herein and embodiment can be arbitrarily mutually combined.
Embodiment 1
Embodiment 1 illustrates wireless signal downlink transfer flow chart, as shown in Figure 1.In accompanying drawing 1, base station N1 is UE U2
Serving cell maintenance base station, the step of identifying in square frame F1, F2, F3, F4, F5 is optional.
ForBase station N1, the first signaling is sent in step s 11, generates the second sequence in step s 12, in step S13
The first reference sequences of middle generation, position of the X1 time interval in very first time window is determined in step S14, in step S15
In send the first wireless signal in the first frequency domain resource in very first time window.
ForUE U2, the first signaling is received in the step s 21, the second sequence is generated in step S22, in step S23
The first reference sequences are generated, determine position of the X1 time interval in very first time window in step s 24, in step s 25
The first wireless signal is received in the first frequency domain resource in very first time window, the 4th sequence is generated in step S26, in step
The 4th sequence is done related to First ray in S27.
In embodiment 1, first wireless signal is generated by First ray, and first wireless signal is used for determining
First foundation sequence.The first foundation sequence be used to generate the first reference sequences.The length of the First ray is equal to institute
State the length of the first reference sequences.The very first time window includes X1 time interval, and the X1 is positive integer, the X1
The time span of time interval is configurable and related to subcarrier spacing.First wireless signal is in the X1 time
Part in interval is generated by X1 subsequence respectively.Position of the X1 subsequence in the First ray is respectively and X1
Position one-to-one corresponding of the individual sub- reference sequences in the first reference sequences, the subsequence and the corresponding sub- reference sequences
Correlation is 1.The sequence and institute that element among the adjacent subsequence of any two in the First ray is formed
The correlation for stating the sequence that the element of correspondence position in the first reference sequences is formed is less than 1.First signaling is used for really
At least one of fixed { time span of the X1 time interval, subcarrier spacing of the X1 time interval }.
In the sub- embodiment 1 of embodiment 1, { time-domain position of the very first time window, the frequency of first frequency domain resource
Domain position, first mark at least one of be used to generate the first foundation sequence, the first foundation sequence passes through Q
Times over-sampling generates first reference sequences, and the Q is positive integer；Or the first foundation sequence is given birth to by cyclic shift
Into first reference sequences.First mark is integer, and first mark includes { sending first wireless signal
Cell ID, the TRP marks of first wireless signal are sent, send the TRP groups mark of first wireless signal, send institute
At least one of state the wave beam mark of the first wireless signal }.
In the sub- embodiment 2 of embodiment 1, the very first time window is reserved for X1 wide-band modulation successively in time domain
Symbol；Or the very first time window is reserved for first basic symbol and X2 wide-band modulation symbol successively in time domain,
The X2 is that the X1 subtracts 1, and the wide-band modulation symbol includes basic symbol and corresponding CP in time domain, when described first
Between the time span of each basic symbol in window and corresponding CP time span be configurable, and with it is described
The subcarrier spacing correlation of basic symbol.
As a sub- embodiment of above-mentioned sub- embodiment, the X1 subsequence passes through successively in the X1 time interval
Cross conversion precoding and generate X1 frequency domain subsequence, the X1 frequency domain subsequence is carried out in the X1 time interval successively
Modulation based on OFDM generates X1 basic symbol in the X1 time interval.
In the sub- embodiment 3 of embodiment 1, the second sequence is generated, second sequence passes through the inverse transformation precoding
Generate first reference sequences, the element that the quantity for the element that second sequence includes includes with first reference sequences
Quantity be identical, the time-domain position of the very first time window, the frequency domain position of first frequency domain resource, described first
Mark } at least one of be used for determining second sequence.
In the sub- embodiment 4 of embodiment 1, the 4th sequence, the 4th sequence are generated based on first wireless signal
It is the sequence that first wireless signal is obtained by sampling.
In the sub- embodiment 5 of embodiment 1, first signaling passes through DCI (Downlink Control
Information, Downlink Control Information) transmission.
In the sub- embodiment 6 of embodiment 1, first signaling is passed by RRC (Radio Resource Control)
It is defeated.
In the sub- embodiment 7 of embodiment 1, first wireless signal is master sync signal (PSS, Primary
Synchronization Signal)。
In the sub- embodiment 8 of embodiment 1, first wireless signal is auxiliary synchronous signals (SSS, Secondary
Synchronization Signal)。
Embodiment 2
Embodiment 2 illustrates very first time window schematic diagram, as shown in Figure 2.In fig 2, the very first time window bag
X1 time interval is included, the rectangle of each label represents one in X1 time interval, and the X1 time interval is successively
Be distributed in the very first time window, in the X1 time interval, adjacent two time intervals be it is continuous either between
Every.
In the sub- embodiment 1 of embodiment 2, any two time interval in the X1 time interval is in time domain
Orthogonal (i.e. not overlapping).
In the sub- embodiment 2 of embodiment 2, the time span of the X1 time interval is identical.
In the sub- embodiment 3 of embodiment 2, the time span in the X1 time interval in the presence of two time intervals is
Different.
In the sub- embodiment 4 of embodiment 2, any 1 time interval in the X1 time interval accords with for 1 OFDM
Number, the OFDM symbol includes data symbol and CP.
Embodiment 3
Embodiment 3 illustrates the first frequency domain resource schematic diagram, as shown in Figure 3.In fig. 3, the first frequency domain money
Source includes multiple subcarriers, and each rectangular area represents the frequency domain money consisted of a plurality of sub-carriers in X1 time interval
Source, packless rectangle represent the subcarrier composition of 15kHz subcarrier spacings in a time interval in X1 time interval
Frequency domain resource, the rectangle of oblique line filling represents 30kHz subcarrier spacings in time interval in X1 time interval
The frequency domain resource of subcarrier composition, the rectangle that cross hairs is filled represent 60kHz in a time interval in X1 time interval
The frequency domain resource of the subcarrier composition of subcarrier spacing, the quantity of the subcarrier that first frequency domain resource includes and is configured
Subcarrier spacing is related.
In the sub- embodiment 1 of embodiment 3, all time intervals in the X1 time interval are in first frequency domain
Subcarrier spacing in resource is identical.
Two time intervals in the sub- embodiment 2 of embodiment 3, in the X1 time interval be present in the described first frequency
Subcarrier spacing in the resource of domain is different.
The time length of a time interval in the sub- embodiment 3 of embodiment 3, in the X1 time interval at least be present
Degree and subcarrier spacing are linear inverse proportions.
In the sub- embodiment 4 of embodiment 3, between the subcarrier of any one time interval in the X1 time interval
Every being P times of 3.75kHz, the P is 2 nonnegative integer power.
Embodiment 4
Embodiment 4 illustrates first foundation sequence and the first reference sequences relation schematic diagram, as shown in Figure 4.Accompanying drawing 4
In, packless rectangle represents an element in the first foundation sequence, and the rectangle of filling represents described first and refers to sequence
An element in row, the first foundation sequence generate first reference sequences by Q times of over-sampling, and the Q is just whole
Number.
In the sub- embodiment 1 of embodiment 4, the Q times of over-sampling of sequence refers to：Each element passes through Q times in sequence
Expand the new sequence for forming that length is Q times.
In the sub- embodiment 2 of embodiment 4, the first foundation sequence generates first reference by Q times of over-sampling
Sequence refers to：The first foundation sequence generates the 3rd sequence, the 3rd sequence warp by converting precoding and sequence extension
Cross inverse transformation precoding and generate first reference sequences, wherein the length of the 3rd sequence and first reference sequences
Length is identical, and the length of the 3rd sequence is Q times of the length of the first foundation sequence, the inverse transformation precoding
For the inverse operation of the conversion precoding.As the sub- embodiment of sub- embodiment 2, the conversion precoding is DFT (Discrete
Fourier Transform, discrete Fourier transform) or FFT (Fast Fourier Transform, fast Fourier change
Change).As another sub- embodiment of sub- embodiment 2, the inverse transformation precoding is IDFT (Inverse Discrete
Fourier Transform) or IFFT (Inverse Fast Fourier Transform).
In the sub- embodiment 3 of embodiment 4, { time-domain position of the very first time window, the frequency of first frequency domain resource
Domain position, first mark at least one of be used to generate the first foundation sequence.First mark includes { sending
The cell ID of first wireless signal, the TRP marks of first wireless signal are sent, send first wireless signal
At least one of TRP groups identify, and send the wave beam mark of first wireless signal }
In the sub- embodiment 4 of embodiment 4, the first foundation sequence is ZC (Zadoff-Chu) sequence.
In the sub- embodiment 5 of embodiment 4, the first foundation sequence first passes through cyclic extensions for a ZC sequence and passed through again
Cross the sequence that cyclic shift obtains.
In the sub- embodiment 6 of embodiment 4, the first foundation sequence is a m-sequence.
Embodiment 5
Embodiment 5 illustrates X1 subsequence and the relation schematic diagram of X1 basic symbol, as shown in Figure 5.Accompanying drawing 5
In, each packless rectangle represents a subsequence in the X1 subsequence, the rectangle generation of each oblique line filling
A frequency domain subsequence for 1 frequency domain subsequence of Table X, the rectangle of each vertical line filling represent a base of X1 basic symbol
This symbol.
In embodiment 5, the X1 subsequence is in the X1 time interval successively by conversion precoding generation institute
X1 frequency domain subsequence is stated, the X1 frequency domain subsequence carries out the modulation based on OFDM in the X1 time interval successively
Generate X1 basic symbol in the X1 time interval.
In the sub- embodiment 1 of embodiment 5, the X1 time interval is reserved for X1 wide-band modulation symbol successively；
Or the X1 time interval is reserved for first basic symbol and X2 wide-band modulation symbol successively, the X2 is described
X1 subtracts 1, and the wide-band modulation symbol includes basic symbol and corresponding CP in time domain, each in the very first time window
The time span of the basic symbol and corresponding CP time span are configurable, and with the son of the basic symbol
Carrier wave interval correlation.
In the sub- embodiment 2 of embodiment 5, CP corresponding to first basic symbol the X1 time interval it
Outer transmission.
In the sub- embodiment 3 of embodiment 5, the modulation based on OFDM does not include addition CP.
In the sub- embodiment 4 of embodiment 5, the modulation based on OFDM is realized by IFFT.
In the sub- embodiment 5 of embodiment 5, the modulation based on OFDM includes time-domain filtering.
In the sub- embodiment 6 of embodiment 5, the modulation based on OFDM includes frequency domain filtering.
In the sub- embodiment 7 of embodiment 5, the modulation based on OFDM includes adding window (Windowing).Described first
Resource pool is continuous in frequency domain.
Embodiment 6
Embodiment 6 illustrates the second sequence and the first reference sequences relation schematic diagram, as shown in Figure 6.In accompanying drawing 6, nothing
The small rectangle of filling represents the element in second sequence, and the small rectangle of cross hatching filling represents described first and refers to sequence
An element in row.
In embodiment 6, second sequence generates first reference sequences by the inverse transformation precoding, described
The quantity for the element that the quantity for the element that second sequence includes and first reference sequences include is identical, { the very first time
The time-domain position of window, the frequency domain position of the first frequency domain resource, first mark at least one of be used for determining second sequence
Row.
In the sub- embodiment 1 of embodiment 6, second sequence is ZC (Zadoff-Chu) sequence.
In the sub- embodiment 2 of embodiment 6, second sequence is that a ZC sequence passes through the sequence that cutting obtains.
In the sub- embodiment 3 of embodiment 6, second sequence is a ZC sequence by mending 0 obtained sequence.
In the sub- embodiment 4 of embodiment 6, second sequence is the ZC sequences that a length is 63.
In the sub- embodiment 5 of embodiment 6, second sequence removes the 32nd element for the ZC sequences of a length 63
The sequence obtained afterwards.
In the sub- embodiment 6 of embodiment 6, second sequence has a ZC sequences generation, the ZC sequences
The root factor is one of { 25,29,34 }.
Embodiment 7
Embodiment 7 illustrates the structured flowchart of the processing unit in a base station equipment, as shown in Figure 7.In accompanying drawing 7
In, base station processing unit 100 is mainly made up of the first sending module 101.
In embodiment 7, first is sent in the first frequency domain resource that the first sending module 101 is used in very first time window
Wireless signal.First wireless signal is generated by First ray, and first wireless signal is used for determining first foundation sequence
Row.The first foundation sequence be used to generate the first reference sequences.The length of the First ray is equal to the described first reference
The length of sequence.The very first time window includes X1 time interval, and the X1 is positive integer, the X1 time interval
Time span is configurable and related to subcarrier spacing.Portion of first wireless signal in the X1 time interval
Divide and generated respectively by X1 subsequence.Position of the X1 subsequence in the First ray refers to sequence with X1 son respectively
The position being listed in the first reference sequences corresponds, and the correlation of the subsequence and the corresponding sub- reference sequences is 1.
The sequence and first reference that element among the adjacent subsequence of any two in the First ray is formed
The correlation for the sequence that the element of correspondence position is formed is less than 1 in sequence.First sending module is additionally operable to send the first signaling,
First signaling is used for determining { time span of the X1 time interval, the subcarrier of the X1 time interval
At least one of interval }.
In the sub- embodiment 1 of embodiment 7, { time-domain position of the very first time window, the frequency of first frequency domain resource
Domain position, first mark at least one of be used to generate the first foundation sequence, the first foundation sequence passes through Q
Times over-sampling generates first reference sequences, and the Q is positive integer；Or the first foundation sequence is given birth to by cyclic shift
Into first reference sequences.First mark is integer, and first mark includes { sending first wireless signal
Cell ID, the TRP marks of first wireless signal are sent, send the TRP groups mark of first wireless signal, send institute
At least one of state the wave beam mark of the first wireless signal }.
In the sub- embodiment 2 of embodiment 7, the very first time window is reserved for X1 wide-band modulation successively in time domain
Symbol；Or the very first time window is reserved for first basic symbol and X2 wide-band modulation symbol successively in time domain,
The X2 is that the X1 subtracts 1, and the wide-band modulation symbol includes basic symbol and corresponding CP in time domain, when described first
Between the time span of each basic symbol in window and corresponding CP time span be configurable, and with it is described
The subcarrier spacing correlation of basic symbol.
As a sub- embodiment of above-mentioned sub- embodiment, the X1 subsequence passes through successively in the X1 time interval
Cross conversion precoding and generate X1 frequency domain subsequence, the X1 frequency domain subsequence is carried out in the X1 time interval successively
Modulation based on OFDM generates X1 basic symbol in the X1 time interval.
In the sub- embodiment 3 of embodiment 7, the second sequence is generated, second sequence passes through the inverse transformation precoding
Generate first reference sequences, the element that the quantity for the element that second sequence includes includes with first reference sequences
Quantity be identical, the time-domain position of the very first time window, the frequency domain position of first frequency domain resource, described first
Mark } at least one of be used for determining second sequence.
In the sub- embodiment 4 of embodiment 7, first signaling passes through DCI (Downlink Control
Information, Downlink Control Information) transmission.
In the sub- embodiment 5 of embodiment 7, first signaling is passed by RRC (Radio Resource Control)
It is defeated.
In the sub- embodiment 6 of embodiment 7, first wireless signal is master sync signal (PSS, Primary
Synchronization Signal)。
In the sub- embodiment 7 of embodiment 7, first wireless signal is auxiliary synchronous signals (SSS, Secondary
Synchronization Signal)。
Embodiment 8
Embodiment 8 illustrates the structured flowchart of the processing unit in a user equipment, as shown in Figure 8.In accompanying drawing 8,
User equipment processing unit 200 is mainly by 203 groups of the first receiving module 201, first processing module 202 and Second processing module
Into.
In embodiment 8, first is received in the first frequency domain resource that the first receiving module 201 is used in very first time window
Wireless signal.First processing module 202 is used to generate the 4th sequence based on first wireless signal.Second processing module 203
Done for the 4th sequence to First ray related.4th sequence is used for determining first foundation sequence, described first
Basic sequence be used to generate the first reference sequences, and first reference sequences be used to generate the First ray.Described
The length of one sequence is equal to the length of the 4th sequence, and the length of first reference sequences is equal to the length of the 4th sequence
Degree.The very first time window includes X1 time interval, and the X1 is positive integer, the time span of the X1 time interval
It is configurable and related to subcarrier spacing.Part of the First ray in the X1 time interval is respectively used to
Generate X1 subsequence.Position of the X1 subsequence in the First ray is respectively with X1 sub- reference sequences first
Position in reference sequences corresponds, and the correlation of the subsequence and the corresponding sub- reference sequences is 1.Described first
It is right in sequence that element among the adjacent subsequence of any two in sequence is formed and first reference sequences
The correlation for the sequence that the element of position formed is answered to be less than 1.First receiving module 201 is additionally operable to receive the first signaling, described
First signaling is used for determining { time span of the X1 time interval, the subcarrier spacing of the X1 time interval }
At least one of.
In the sub- embodiment 1 of embodiment 8, { time-domain position of the very first time window, the frequency of first frequency domain resource
Domain position, first mark at least one of be used to generate the first foundation sequence, the first foundation sequence passes through Q
Times over-sampling generates first reference sequences, and the Q is positive integer；Or the first foundation sequence is given birth to by cyclic shift
Into first reference sequences.First mark is integer, and first mark includes { sending first wireless signal
Cell ID, the TRP marks of first wireless signal are sent, send the TRP groups mark of first wireless signal, send institute
At least one of state the wave beam mark of the first wireless signal }.
In the sub- embodiment 2 of embodiment 8, the very first time window is reserved for X1 wide-band modulation successively in time domain
Symbol；Or the very first time window is reserved for first basic symbol and X2 wide-band modulation symbol successively in time domain,
The X2 is that the X1 subtracts 1, and the wide-band modulation symbol includes basic symbol and corresponding CP in time domain, when described first
Between the time span of each basic symbol in window and corresponding CP time span be configurable, and with it is described
The subcarrier spacing correlation of basic symbol.
As a sub- embodiment of above-mentioned sub- embodiment, the X1 subsequence passes through successively in the X1 time interval
Cross conversion precoding and generate X1 frequency domain subsequence, the X1 frequency domain subsequence is carried out in the X1 time interval successively
Modulation based on OFDM generates X1 basic symbol in the X1 time interval.
In the sub- embodiment 3 of embodiment 8, the second sequence is generated, second sequence passes through the inverse transformation precoding
Generate first reference sequences, the element that the quantity for the element that second sequence includes includes with first reference sequences
Quantity be identical, the time-domain position of the very first time window, the frequency domain position of first frequency domain resource, described first
Mark } at least one of be used for determining second sequence.
In the sub- embodiment 4 of embodiment 8, the 4th sequence, the 4th sequence are generated based on first wireless signal
It is the sequence that first wireless signal is obtained by sampling.
In the sub- embodiment 5 of embodiment 8, first signaling passes through DCI (Downlink Control
Information, Downlink Control Information) transmission.
In the sub- embodiment 6 of embodiment 8, first signaling is passed by RRC (Radio Resource Control)
It is defeated.
In the sub- embodiment 7 of embodiment 8, first wireless signal is master sync signal (PSS, Primary
Synchronization Signal)。
In the sub- embodiment 8 of embodiment 1, first wireless signal is auxiliary synchronous signals (SSS, Secondary
Synchronization Signal)。
One of ordinary skill in the art will appreciate that all or part of step in the above method can be referred to by program
Related hardware is made to complete, described program can be stored in computer-readable recording medium, such as read-only storage, hard disk or light
Disk etc..Optionally, all or part of step of above-described embodiment can also be realized using one or more integrated circuit.Phase
Answer, each modular unit in above-described embodiment, example, in hardware can be used to realize, can also be by the form of software function module
Realize, the application is not limited to the combination of the software and hardware of any particular form.UE or terminal in the present invention are included but not
It is limited to the Wireless Telecom Equipments such as mobile phone, tablet personal computer, notebook, card of surfing Internet, low power consuming devices, vehicular communication equipment.The present invention
In base station or network side equipment include but is not limited to the nothings such as macrocell base stations, microcell base station, Home eNodeB, relay base station
Line communication equipment.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.It is all
Within the spirit and principles in the present invention, any modification for being made, equivalent substitution, improve etc., it should be included in the protection of the present invention
Within the scope of.
Claims (18)
1. a kind of method being used in synchronous base station, wherein, comprise the following steps：
- step A. sends the first wireless signal in the first frequency domain resource in very first time window.
Wherein, first wireless signal is generated by First ray, and first wireless signal is used for determining first foundation sequence
Row.The first foundation sequence be used to generate the first reference sequences.The length of the First ray is equal to the described first reference
The length of sequence.The very first time window includes X1 time interval, and the X1 is positive integer, the X1 time interval
Time span is configurable and related to subcarrier spacing.Portion of first wireless signal in the X1 time interval
Divide and generated respectively by X1 subsequence.Position of the X1 subsequence in the First ray refers to sequence with X1 son respectively
The position being listed in the first reference sequences corresponds, and the correlation of the subsequence and the corresponding sub- reference sequences is 1.
The sequence and first reference that element among the adjacent subsequence of any two in the First ray is formed
The correlation for the sequence that the element of correspondence position is formed is less than 1 in sequence.
2. according to the method for claim 1, it is characterised in that the step A also comprises the following steps：
- step A0. sends the first signaling.
Wherein, first signaling is used for determining the { time span of the X1 time interval, between the X1 time
Every subcarrier spacing at least one of.
3. according to claim 1, the method described in 2, it is characterised in that the step A also comprises the following steps：
- step A1. generates first reference sequences.
Wherein, in { time-domain position of the very first time window, the frequency domain position of first frequency domain resource, the first mark } extremely
One of few to be used to generate the first foundation sequence, the first foundation sequence generates first ginseng by Q times of over-sampling
Sequence is examined, the Q is positive integer；Or the first foundation sequence generates first reference sequences by cyclic shift.Institute
It is integer to state the first mark, and first mark includes { sending the cell ID of first wireless signal, sending described first
The TRP marks of wireless signal, the TRP groups mark of first wireless signal is sent, send the wave beam of first wireless signal
At least one of mark }.
4. according to the method for claim 3, it is characterised in that the first foundation sequence generates institute by Q times of over-sampling
The first reference sequences are stated to refer to：The first foundation sequence generates the 3rd sequence by converting precoding and sequence extension, described
3rd sequence generates first reference sequences by inverse transformation precoding, wherein the length and described first of the 3rd sequence
The length of reference sequences is identical, and the length of the 3rd sequence is Q times of the length of the first foundation sequence, institute
State inverse operation of the inverse transformation precoding for the conversion precoding.
5. according to the method described in claim 1-4, it is characterised in that the step A also comprises the following steps：
- step A2. determines position of the X1 time interval in the very first time window.
Wherein, the very first time window is reserved for X1 wide-band modulation symbol successively in time domain；Or the very first time
Window is reserved for first basic symbol and X2 wide-band modulation symbol successively in time domain, and the X2 is that the X1 subtracts 1, institute
State wide-band modulation symbol includes basic symbol and corresponding CP in time domain, each basic symbol in the very first time window
Number time span and corresponding CP time span be configurable, and with the subcarrier spacing phase of the basic symbol
Close.
6. according to the method described in claim 1-5, it is characterised in that the X1 subsequence the X1 time interval according to
Secondary to generate X1 frequency domain subsequence by conversion precoding, the X1 frequency domain subsequence is successively in the X1 time interval
Carry out the X1 basic symbols in the modulation generation X1 time interval based on OFDM.
7. according to claim 1, the method described in 2,3, it is characterised in that the step A also comprises the following steps：
- step A3. generates the second sequence
Wherein described second sequence generates first reference sequences, the length of second sequence by the inverse transformation precoding
Degree and the length of first reference sequences are identicals, and the time-domain position of the very first time window, described first
The frequency domain position of frequency domain resource, it is described first mark at least one of be used for determining second sequence.
8. a kind of method being used in synchronous user equipment, wherein, comprise the following steps：
- step A. receives the first wireless signal in the first frequency domain resource in very first time window；
- step B. is based on first wireless signal and generates the 4th sequence；
4th sequence described in-step C. is done related to First ray.
Wherein, the 4th sequence is used for determining first foundation sequence, and the first foundation sequence is used for the ginseng of generation first
Sequence is examined, first reference sequences be used to generate the First ray.The length of the First ray is equal to the described 4th
The length of sequence, the length of first reference sequences are equal to the length of the 4th sequence.In the very first time window
Including X1 time interval, the X1 is positive integer, and the time span of the X1 time interval is configurable and carried with son
Wave spacing is related.Part of the First ray in the X1 time interval is respectively used to generate X1 subsequence.Institute
State position of the X1 subsequence in the First ray respectively with X1 positions of the sub- reference sequences in the first reference sequences
Correspond, the correlation of the subsequence and the corresponding sub- reference sequences is 1.Any two in the First ray
The element institute group of correspondence position in sequence that element among the adjacent subsequence is formed and first reference sequences
Into sequence correlation be less than 1.
9. according to the method for claim 8, it is characterised in that the step A also comprises the following steps：
- step A0. receives the first signaling.
Wherein, first signaling is used for determining the { time span of the X1 time interval, between the X1 time
Every subcarrier spacing at least one of.
10. according to claim 8, the method described in 9, it is characterised in that the step A also comprises the following steps：
- step A1. generates first reference sequences.
Wherein, in { time-domain position of the very first time window, the frequency domain position of first frequency domain resource, the first mark } extremely
One of few to be used to generate the first foundation sequence, the first foundation sequence generates first ginseng by Q times of over-sampling
Sequence is examined, the Q is positive integer；Or the first foundation sequence generates first reference sequences by cyclic shift.Institute
It is integer to state the first mark, and first mark includes { sending the cell ID of first wireless signal, sending described first
The TRP marks of wireless signal, the TRP groups mark of first wireless signal is sent, send the wave beam of first wireless signal
At least one of mark }.
11. according to the method for claim 10, it is characterised in that the first foundation sequence generates by Q times of over-sampling
First reference sequences refer to：The first foundation sequence generates the 3rd sequence, institute by converting precoding and sequence extension
State the 3rd sequence and generate first reference sequences by inverse transformation precoding, wherein the length of the 3rd sequence and described the
The length of one reference sequences is identical, and the length of the 3rd sequence is Q times of the length of the first foundation sequence,
The inverse transformation precoding is the inverse operation for converting precoding.
12. according to the method described in claim 8-11, it is characterised in that the step A also comprises the following steps：
- step A2. determines position of the X1 time interval in the very first time window.
Wherein, the very first time window is reserved for X1 wide-band modulation symbol successively in time domain；Or the very first time
Window is reserved for first basic symbol and X2 wide-band modulation symbol successively in time domain, and the X2 is that the X1 subtracts 1, institute
State wide-band modulation symbol includes basic symbol and corresponding CP in time domain, each basic symbol in the very first time window
Number time span and corresponding CP time span be configurable, and with the subcarrier spacing phase of the basic symbol
Close.
13. according to the method described in claim 8-12, it is characterised in that the X1 subsequence is in the X1 time interval
X1 frequency domain subsequence is generated by conversion precoding successively, the X1 frequency domain subsequence is successively in the X1 time interval
On carry out the modulation based on OFDM and generate individual basic symbols of X1 in the X1 time interval.
14. according to claim 8, the method described in 9,10, it is characterised in that the step A also comprises the following steps：
- step A3. generates the second sequence
Wherein described second sequence generates first reference sequences, the length of second sequence by the inverse transformation precoding
Degree and the length of first reference sequences are identicals, and the time-domain position of the very first time window, described first
The frequency domain position of frequency domain resource, it is described first mark at least one of be used for determining second sequence.
15. a kind of be used for synchronous base station equipment, wherein, including following module：
First sending module：The first wireless signal is sent in the first frequency domain resource in very first time window.
Wherein, first wireless signal is generated by First ray, and first wireless signal is used for determining first foundation sequence
Row.The first foundation sequence be used to generate the first reference sequences.The length of the First ray is equal to the described first reference
The length of sequence.The very first time window includes X1 time interval, and the X1 is positive integer, the X1 time interval
Time span is configurable and related to subcarrier spacing.Portion of first wireless signal in the X1 time interval
Divide and generated respectively by X1 subsequence.Position of the X1 subsequence in the First ray refers to sequence with X1 son respectively
The position being listed in the first reference sequences corresponds, and the correlation of the subsequence and the corresponding sub- reference sequences is 1.
The sequence and first reference that element among the adjacent subsequence of any two in the First ray is formed
The correlation for the sequence that the element of correspondence position is formed is less than 1 in sequence.
16. base station equipment according to claim 15, it is characterised in that first sending module is additionally operable to transmission first
Signaling, first signaling be used for determining the time span of the X1 time interval, the X1 time interval
Subcarrier spacing at least one of.
17. a kind of be used for synchronous user equipment, wherein, including following module：
- the first receiving module：The first wireless signal is received in the first frequency domain resource in very first time window；
- first processing module：For generating the 4th sequence based on first wireless signal；
- Second processing module：Done for the 4th sequence to First ray related.
Wherein, the 4th sequence is used for determining first foundation sequence, and the first foundation sequence is used for the ginseng of generation first
Sequence is examined, first reference sequences be used to generate the First ray.The length of the First ray is equal to the described 4th
The length of sequence, the length of first reference sequences are equal to the length of the 4th sequence.The very first time window includes
X1 time interval, the X1 are positive integers, and the time span of the X1 time interval is configurable and between subcarrier
Every correlation.Part of the First ray in the X1 time interval is respectively used to generate X1 subsequence.The X1
Position of the individual subsequence in the First ray respectively with X1 positions of the sub- reference sequences in the first reference sequences one by one
Corresponding, the correlation of the subsequence and the corresponding sub- reference sequences is 1.Any two in the First ray is adjacent
The subsequence among the element sequence that is formed and first reference sequences in the element of correspondence position formed
The correlation of sequence is less than 1.
18. user equipment according to claim 17, it is characterised in that first receiving module is additionally operable to reception first
Signaling, first signaling be used for determining the time span of the X1 time interval, the X1 time interval
Subcarrier spacing at least one of.
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