WO2022242705A1 - 数据传输方法、装置、电子设备和存储介质 - Google Patents

数据传输方法、装置、电子设备和存储介质 Download PDF

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Publication number
WO2022242705A1
WO2022242705A1 PCT/CN2022/093763 CN2022093763W WO2022242705A1 WO 2022242705 A1 WO2022242705 A1 WO 2022242705A1 CN 2022093763 W CN2022093763 W CN 2022093763W WO 2022242705 A1 WO2022242705 A1 WO 2022242705A1
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sequence
data
sequences
data sequences
length
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PCT/CN2022/093763
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English (en)
French (fr)
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辛雨
暴桐
许进
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中兴通讯股份有限公司
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Priority to CA3219879A priority Critical patent/CA3219879A1/en
Priority to US18/563,105 priority patent/US20240223424A1/en
Priority to EP22804025.9A priority patent/EP4354813A1/en
Priority to KR1020237042220A priority patent/KR20240005066A/ko
Publication of WO2022242705A1 publication Critical patent/WO2022242705A1/zh

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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
    • H04L27/2626—Arrangements specific to the transmitter only
    • H04L27/26265—Arrangements for sidelobes suppression specially adapted to multicarrier systems, e.g. spectral precoding
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2626—Arrangements specific to the transmitter only
    • H04L27/2646—Arrangements specific to the transmitter only using feedback from receiver for adjusting OFDM transmission parameters, e.g. transmission timing or guard interval length
    • 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]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03828—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/20—Modulator circuits; Transmitter circuits
    • H04L27/2032—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner
    • H04L27/2053—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2626—Arrangements specific to the transmitter only
    • H04L27/2627—Modulators
    • H04L27/2634—Inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators in combination with other circuits for modulation
    • H04L27/2636—Inverse fast Fourier transform [IFFT] or inverse discrete Fourier transform [IDFT] modulators in combination with other circuits for modulation with FFT or DFT modulators, e.g. standard single-carrier frequency-division multiple access [SC-FDMA] transmitter or DFT spread orthogonal frequency division multiplexing [DFT-SOFDM]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2649—Demodulators
    • H04L27/26524—Fast Fourier transform [FFT] or discrete Fourier transform [DFT] demodulators in combination with other circuits for demodulation
    • H04L27/26526—Fast Fourier transform [FFT] or discrete Fourier transform [DFT] demodulators in combination with other circuits for demodulation with inverse FFT [IFFT] or inverse DFT [IDFT] demodulators, e.g. standard single-carrier frequency-division multiple access [SC-FDMA] receiver or DFT spread orthogonal frequency division multiplexing [DFT-SOFDM]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections

Definitions

  • the present application relates to the technical field of wireless communication, for example, to a data transmission method, device, electronic equipment and storage medium.
  • the Fifth Generation New Radio (5G NR) adopts Orthogonal Frequency Division Multiplexing (OFDM) technology, and the time-frequency resources composed of subcarriers and OFDM symbols form the wireless physical time-frequency of the 5G NR system. resource.
  • OFDM technology uses cyclic prefix (Cyclic Prefix, CP) to solve the multipath delay problem, divides the frequency selective channel into a set of parallel flat fading channels, and simplifies the channel estimation method.
  • Discrete Fourier Transform spread (DFTs) OFDM technology is based on CP-OFDM, adding discrete Fourier transform DFT before subcarrier mapping can solve the high peak-to-average power ratio (Peak Average Power Radio, PAPR) problem.
  • Peak Average Power Radio, PAPR Peak Average Power Radio
  • the CP can resist multipath delay, the CP does not carry any useful data, resulting in a waste of wireless physical time-frequency resource overhead, especially when the frequency band is high frequency, for example, when the frequency range is greater than 52.6GHZ, due to the subcarrier spacing Increase, the shortening of the symbol length, the overhead problem of CP becomes more serious.
  • CP-OFDM has the phenomenon of basic waveform spectrum leakage, and 5G NR supports the mixed use of different parameter sets and supports different subcarrier spacing between adjacent subbands, there is interference between adjacent subbands.
  • time-domain soft CP or filtering method is used to reduce the spectrum leakage and interference between sub-bands during data transmission. However, this method still needs to use guard intervals between sub-bands with different sub-carrier spacing, which reduces the data The spectral efficiency of the transmission.
  • the main purpose of the embodiments of the present application is to propose a data transmission method, device, electronic equipment, and storage medium, which aims to reduce spectrum leakage and interference between sub-bands, reduce the guard interval between different sub-carrier intervals, and improve data transmission. the spectral efficiency.
  • An embodiment of the present application provides a data transmission method, the method including:
  • the embodiment of the present application also provides a data transmission device, which includes:
  • a data adjustment module configured to insert sequence 1 in front of each of the first data sequences of the L first data sequences to be transmitted and insert sequence 2 behind each of the first data sequences to form L first data sequences
  • the embodiment of the present application also provides an electronic device, the electronic device includes:
  • One or more processors used to store one or more programs; when the one or more programs are executed by the one or more processors, the one or more processors realize the The data transmission method described in any one of the embodiments.
  • the embodiment of the present application also provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the data transmission method as described in any one of the embodiments of the present application is implemented.
  • multiple second data sequences are formed by inserting sequence 1 and sequence 2 respectively before and after each first data sequence of multiple first data sequences to be transmitted, wherein the inserted sequence 1 and Sequence 2 is composed of one or more sequences 3 respectively, and the integral multiple of the time domain time length of sequence 3 is the time domain time length of the cyclic prefix, and the generated multiple second data sequences are sent, realizing the Sequence 1 and sequence 2 are respectively inserted before and after a data sequence, so that the data before and after the data sequence are equal, which helps to maintain the signal continuity of the data sequence in the time domain, and can reduce the spectrum leakage between subbands.
  • FIG. 1 is a flow chart of a data transmission method provided by an embodiment of the present application
  • Fig. 2 is a flowchart of another data transmission method provided by the embodiment of the present application.
  • FIG. 3 is a flow chart of another data transmission method provided by an embodiment of the present application.
  • FIG. 4 is an example diagram of a data sequence provided by an embodiment of the present application.
  • Fig. 5 is an example diagram of another data sequence provided by the embodiment of the present application.
  • Fig. 6 is an example diagram of another data sequence provided by the embodiment of the present application.
  • Fig. 7 is an example diagram of another data sequence provided by the embodiment of the present application.
  • Fig. 8 is an example diagram of another data sequence provided by the embodiment of the present application.
  • Fig. 9 is an example diagram of another data sequence provided by the embodiment of the present application.
  • FIG. 10 is an example diagram of another data sequence provided by the embodiment of the present application.
  • Fig. 11 is an example diagram of another data transmission method provided by the embodiment of the present application.
  • Fig. 12 is an example diagram of another data sequence provided by the embodiment of the present application.
  • FIG. 13 is a schematic structural diagram of a data transmission device provided by an embodiment of the present application.
  • FIG. 14 is a schematic structural diagram of an electronic device provided by an embodiment of the present application.
  • Figure 1 is a flow chart of a data transmission method provided by the embodiment of the present application.
  • the embodiment of the present application can be applied to the situation of data modulation and transmission.
  • the method can be executed by the data transmission device provided by the embodiment of the present application.
  • the device can have Realized by means of software and/or hardware, referring to Figure 1, the method provided by the embodiment of the present application includes:
  • the first data sequence may be a data sequence that needs to be modulated and sent, and the first data sequence may also include reference signal data.
  • the number of first data sequences may be one or more.
  • Sequence 1 and Sequence 2 can be inserted before or after the first data sequence.
  • Sequence 1 and Sequence 2 can include one or more Sequence 3 respectively.
  • the time length of the cyclic prefix is the time of Sequence 3 An integer multiple of the length, and the maximum value of the integer multiple does not exceed the number of sequence 3 included in sequence 2.
  • a second data sequence formed by inserting sequence 1 and sequence 2 into each of the first data sequences may be transmitted.
  • the second data sequence is formed by inserting sequence 1 and sequence 2 respectively in front and behind each first data sequence to be transmitted, and the inserted sequence 1 and sequence 2 are respectively composed of multiple sequences 3, and the generated Multiple second data sequences are sent so that the data before and after the data sequence are equal, which helps to maintain the signal continuity of the data sequence in the time domain, and can reduce spectrum leakage between sub-bands.
  • Fig. 2 is a flow chart of another data transmission method provided by the embodiment of the present application.
  • the embodiment of the present application is described on the basis of the above-mentioned embodiment of the application.
  • the method provided by the embodiment of the present application includes:
  • Fourier transform processing can be a process of converting data from a time-domain signal to a frequency-domain signal
  • inverse Fourier transform can be a process of converting a frequency-domain signal into a time-domain signal.
  • Fourier transform and inverse Fourier transform are in The number of points sampled in the cycle can be the same or different. For example, when the number of points sampled in the cycle of the Fourier transform is less than the number of points sampled in the cycle of the inverse Fourier transform, the processing of the second data sequence can be oversampling processing.
  • Fourier transform and inverse Fourier transform can be performed on each second data sequence respectively, and different second data sequences can have the same number of points when performing Fourier transform and inverse Fourier transform It can also be different, and the number of points in the Fourier transform and the inverse Fourier transform performed on the same second data sequence can be the same or different.
  • the cyclic prefix may be a signal inserted within a spatial transmission period to eliminate the effects of multipath propagation and channel interference.
  • a cyclic prefix may be added to each third data sequence as a fourth data sequence.
  • the generated fourth data sequence may be sent.
  • the part of the third data sequence whose length is KT 3 is added to the front of the third data sequence.
  • the third data sequence is information BC, where information C is the following information in the third data sequence
  • the information C can be added in front of the third data sequence BC to form CBC.
  • Fourier transform and inverse Fourier transform are respectively performed on the L second data sequences, including:
  • the frequency domain shaping may be a process of multiplying the discrete frequency domain data generated by Fourier transform through a spectral shaping sequence to reduce the peak-to-average power ratio, wherein the spectral shaping sequence may be a predetermined sequence.
  • Fourier transform may be performed on the generated multiple second data sequences in sequence, and each second data sequence is converted into a frequency domain signal.
  • the product of the second data sequence in the form of each frequency domain signal and the preset frequency domain shaping sequence can be determined, and then the frequency domain signal corresponding to the frequency domain shaping second data sequence can be subjected to Fourier inverse transform processing, Each second data sequence is converted into a time domain signal.
  • the number of operating points of the inverse Fourier transform is greater than that of the Fourier transform.
  • the number of operating points may be the number of samples to be made to the frequency spectrum within a cycle.
  • a 64-point FFT may be an operation of uniformly sampling the frequency spectrum 64 times in a cycle according to Fast Fourier Transform (FFT).
  • FFT Fast Fourier Transform
  • the number of operating points of the inverse Fourier transform is greater than that of the Fourier transform, that is, the sampling rate for sampling the frequency spectrum during the conversion from the frequency domain to the time domain is greater than that during the conversion from the time domain to the time domain.
  • the sampling rate at which the spectrum is sampled in the frequency domain process which can be used for oversampled signal processing.
  • the length of the third data sequence is the window length of Fourier transform processing
  • the fourth data sequence is a length of a data block or a length of an OFDM symbol.
  • the third data sequence can be generated by Fourier transform from the second data sequence, the length of the third data sequence can be the same as the window length processed by Fourier transform, the fourth data sequence is a data sequence of transmission time delay, and the fourth data sequence
  • the sequence can be sent in a data block or an OFDM symbol.
  • the fourth data sequence has a length of a data block or an OFDM symbol.
  • the start and end positions of the second data sequence are the start and end positions of the Fourier transform processing.
  • the Fourier transform processing may target the second data sequence, and use the start position and end position of the second data sequence as the start position and end position of the Fourier transform process respectively.
  • the time domain length of the second data sequence is equal to the time domain length of the third data sequence, and the time domain length of the second data sequence is the reciprocal of the subcarrier spacing.
  • the time domain length of the second data sequence may be the same as the time domain length of the third data sequence, and the time domain length of the second data sequence is the reciprocal of the subcarrier spacing.
  • the values of M in the L second data sequences are the same, and the values of N are different.
  • the number of sequence 3 included in the previously inserted sequence 1 may be the same, and the number of sequence 3 included in the later inserted sequence 2 may be different.
  • the lengths of the L first data sequences are different, the lengths of the L second data sequences are the same, and the lengths of the L third data sequences are different.
  • the lengths of the data sequences are the same, and the lengths of the L fourth data sequences are the same.
  • the sequence 3 included in the sequence 2 inserted in the first data sequence are different, that is, the values of N are different.
  • the sequence 2 containing different numbers of sequence 3 can be inserted in the first data sequence, that is, the value of N in the sequence 2 is different, so that the lengths of the second data sequences can be the same.
  • the lengths of the third data sequences can be made the same, and the lengths of the fourth data sequences can also be made the same.
  • transmitting the L second data sequences includes: sequentially transmitting the L second data sequences in adjacent L data blocks.
  • Multiple second data sequences may be transmitted in adjacent L data blocks.
  • transmitting the L second data sequences includes: transmitting the L second data sequences in L data blocks in adjacent time slots.
  • Multiple second data sequences may be transmitted in adjacent L adjacent time slots.
  • the transmission of the L second data sequences includes at least one of the following situations:
  • the sequence 3 in the L second data sequences is the same; if the L second data sequences are transmitted in different time slots, then the L Sequence 3 in the second data sequence is different.
  • multiple second data sequences generated may be transmitted in the same time slot.
  • the second data sequence When the second data sequence is transmitted in the same time slot, the second data sequence inserted into sequence 1 and sequence 2
  • the content of the included sequence 3 can be the same.
  • the generated multiple second data sequences may also be transmitted in different time slots, and the contents of sequence 1 inserted in the second data sequences transmitted in different time slots and sequence 3 included in sequence 2 may be different.
  • sequence 1 and the sequence 2 are reference sequences, wherein the reference sequence includes at least one of a preset sequence and a known sequence at a receiving end.
  • Sequence 1 and Sequence 2 may be reference sequences, where the reference sequence may be a preset sequence and/or a known sequence at the receiving end, for example, the known sequence at the receiving end may include a sequence set according to a protocol standard or a sequence that has already been sent Wait.
  • the first data may consist of constellation point modulated data and multiple reference data sequences.
  • Fig. 3 is a flow chart of another data transmission method provided by the embodiment of the present application.
  • the embodiment of the present application is described on the basis of the above-mentioned embodiment of the application.
  • the method provided by the embodiment of the present application includes:
  • control information carries indication information indicating a value of N.
  • the control information may be information for controlling the demodulation of the second data sequence
  • the control information may include one or more fields
  • the information on different fields may respectively represent different information used for demodulation
  • the instruction information may be an instruction to insert into the second data sequence Sequence 2 includes the number of sequence 3 of the sequence.
  • the indication information may be the information of one or more fields in the information format of the control information, and the fields may be preset or stipulated in the protocol.
  • control information for controlling the demodulation of the second data sequence may also be sent, and the control information may carry information indicating that the sequence 2 inserted in each second data sequence includes Information on the number of sequence 3.
  • the transmitting the control information includes: transmitting the control information through a downlink control channel or an uplink control channel.
  • the control information may be control information transmitted on a downlink control channel or an uplink control channel.
  • the transmitting control information includes: transmitting the control information through downlink or uplink radio resource control RRC signaling.
  • control information may be transmitted in downlink radio resource control signaling or in uplink radio resource control signaling.
  • sequence 1 and/or sequence 2 is a data sequence modulated by ⁇ /2 binary phase shift keying.
  • At least one of sequence 1 and sequence 2 may be a data sequence subjected to ⁇ /2 binary phase shift keying modulation (Binary Phase Shift Keying, BPSK).
  • BPSK Binary Phase Shift Keying
  • FIG. 4 is an example diagram of a data sequence provided by an embodiment of the present application.
  • Insert Sequence 1 and Sequence 2 respectively before and after the data 1 to be transmitted to form the first second data sequence, where Sequence 1 can be composed of 1 Sequence 3, Sequence 2 can be composed of 2 Sequence 3, the 1st The value of M in the second data sequence is 1, and the value of N is 2.
  • Insert Sequence 1 and Sequence 2 respectively before and after the data 2 to be transmitted to form the second second data sequence, where Sequence 1 consists of 1 Sequence 3, Sequence 2 consists of 2 Sequences 3, and the second
  • the value of M in the second data sequence is 1, and the value of N is 2.
  • the time domain time length T 3 of sequence 3 is equal to the time length T cp of the cyclic prefix, the value of M in the first second data sequence and the second second data sequence is the same, and the value of N is same value.
  • each data sequence before transmitting the L data sequences to be sent, each data sequence may be modulated.
  • L second data sequences are formed, the value of M is the same, and the value of N is the same.
  • FIG. 6 is an example diagram of another data sequence provided by the embodiment of the present application.
  • Insert Sequence 1 and Sequence 2 respectively before and after the data 1 to be transmitted to form the first second data sequence, where Sequence 1 is composed of 1 Sequence 3, and Sequence 2 is composed of 2 Sequence 3s.
  • M The values of are the same, and the values of N are different.
  • each data sequence before transmitting the L data sequences to be sent, each data sequence may be modulated.
  • FIG. 7 is an example diagram of another data sequence provided by the embodiment of the present application, see FIG. 7 , respectively insert sequence 1 and sequence 2 before and after each first data sequence of the L first data sequences to be transmitted to form L second data sequences, wherein sequence 1 is composed of M sequence 3, sequence 2 consists of N sequences of 3.
  • FDSS Frequency Domain Spectrum Shaping
  • IFFT Invert Fast Fourier Transformation
  • T 3 is the time domain time length of the sequence 3
  • the value of K is 1.
  • each data sequence before transmitting the L data sequences to be sent, each data sequence can be processed.
  • FIG. 8 is an example diagram of another data sequence provided by the embodiment of the present application, see FIG. 8 , Sequence 1 and Sequence 2 can be respectively inserted in front of and behind each first data sequence of the L first data sequences to be transmitted to form L second data sequences, wherein Sequence 1 is composed of M Sequences 3, The sequence 2 is composed of N sequences 3.
  • the value of M is 1, and the value of N is 2.
  • T 3 is the time domain time length of sequence 3
  • the L third data sequences generated through processing may be transmitted.
  • each data sequence before transmitting L data sequences to be sent, each data sequence can be processed.
  • FIG. 9 is an example diagram of another data sequence provided by the embodiment of the present application. Insert sequence 1 and sequence 2 at the front and back of the first first data sequence data 1 respectively to form the first second data sequence, where sequence 1 is composed of 1 sequence 3, and sequence 2 is composed of 2 sequence 3 , the value of M in the first second data sequence is 1, and the value of N is 2. Insert sequence 1 and sequence 2 respectively before and after the second first data sequence data 2 to be transmitted to form the second second data sequence, wherein sequence 1 consists of 1 sequence 3, and sequence 2 consists of 3 The sequence consists of 3 sequences, the value of M in the second second data sequence is equal to 1, and the value of N is equal to 3.
  • the value of M in the first second data sequence is the same as that in the second second data sequence, and the value of N is different.
  • the length of data 1 is different from that of data 2
  • the length of the first second data sequence formed is the same as the length of the second second data sequence.
  • the part of length KT 3 behind the first third data sequence data 1' can be added to the front of data 1' to form the first fourth data sequence; the second third data sequence data 2' can be added to The following part with a length of KT 3 is added to the front of data 2' to form the second and fourth data sequence, where T 3 is the time domain time length of sequence 3, and the value of K is 1.
  • the length of the first fourth data sequence is the same as that of the second fourth data sequence, and the added cyclic prefix is also the same. Since the lengths of data 1 and data 2 are different, the length of the first fourth data sequence and the second fourth data sequence generated after adding the cyclic prefix is the same, and the first fourth data sequence is resistant to the second fourth data sequence The ability of multipath delay is different. When the length of data 1 is greater than the length of data 2, the ability of the first fourth data sequence to resist multipath delay is lower than that of the second fourth data sequence to resist multipath delay. Ability.
  • each data sequence before transmitting L data sequences to be sent, each data sequence can be processed.
  • FIG. 10 is an example diagram of another data sequence provided by the embodiment of the present application, which shows The time relationship of the first data sequence, the second data sequence, the fourth data sequence and the fourth data sequence is shown.
  • sequence 1 and sequence 2 are respectively inserted before and after the first data sequence data 1 to be transmitted, A first second data sequence is formed, wherein sequence 1 is composed of one sequence 3, and sequence 2 is composed of two sequence 3s.
  • Sequence 1 and sequence 2 are respectively inserted before and after the second second data sequence data 2 to be transmitted, wherein sequence 1 is composed of one sequence 3, and sequence 2 is composed of three sequence 3s.
  • Fourier transform and inverse Fourier transform can be performed on the two formed second data sequences to form two third data sequences, and the time domain length of the second data sequence is equal to the third data sequence the length of the time domain.
  • the start and end positions of the second data sequence are the same as the start and end positions of the subsequent Fourier transform, and the length of the third data sequence is the window length of the Fourier transform process.
  • Add the part of length T3 behind each of the two third data sequences to the front of the third data sequence to form two fourth data sequences, where T3 is the time domain time length of sequence 3 , which is equal to the length of the cyclic prefix, and the value of K in this embodiment of the application may be 1.
  • the fourth data sequence is a data block length or an Orthogonal Frequency Division Multiplexing (Orthogonal Frequency Division Multiplexing, OFDM) symbol length, that is, a data block length or an OFDM symbol length is equal to the FFT processing window length and the cyclic prefix time length and, that is, the interval between adjacent data blocks or the interval between symbols is greater than the length of the third data sequence.
  • OFDM Orthogonal Frequency Division Multiplexing
  • L second data sequences are transmitted in adjacent time slots.
  • FIG. 11 is an example diagram of another data transmission method provided by the embodiment of the present application. Refer to FIG. 11 , adjacent time slots They are the 1st time slot and the 2nd time slot respectively. There are L data blocks in the first time slot, and L second data sequences are transmitted in L data blocks in the first time slot.
  • sequence 1 is composed of M sequence 3
  • sequence 2 is composed of N consists of a sequence of 3.
  • L data blocks in the second time slot and L second data sequences are transmitted in L data blocks in the second time slot.
  • sequence 1 is composed of M sequence 3
  • sequence 2 is composed of N Sequence 3 composition.
  • the sequence 3 in the first time slot is the same, the sequence 3 in the second time slot is the same, the sequence 3 in the first time slot is different from the sequence 3 in the second time slot, the content of sequence 3 can be related to the time slot .
  • the first data sequence includes P reference sequence data.
  • FIG. 12 is an example diagram of another data sequence provided by the embodiment of the present application.
  • the first data sequence includes the data sequence , reference sequence P1 and reference sequence P2, the data sequence in the first data sequence is a data sequence modulated by ⁇ /2 binary phase shift keying (Binary Phase Shift Keying, BPSK), in other embodiments, the first data sequence
  • BPSK Binary Phase Shift Keying
  • the data sequence included in can be modulated by other modulation methods, for example, amplitude modulation, frequency modulation, phase modulation, etc.
  • the reference sequence in the first data sequence can be other reference sequences, and the reference sequence P1, reference sequence P2, sequence 1 and sequence 2 in the first data sequence in the embodiment of the present application can be sequences known by the receiving end, for example, It may be a sequence already received by the receiving end or a pre-configured sequence.
  • Figure 13 is a schematic structural diagram of a data transmission device provided by an embodiment of the present application, which can execute the data transmission method provided by any embodiment of the present application, and has corresponding functional modules and effects for executing the method.
  • the device can be composed of software and/or hardware Implementation, including: a data adjustment module 401 and a data sending module 402.
  • a data adjustment module 401 configured to insert sequence 1 in front of each of the first data sequences of the L first data sequences to be transmitted and insert sequence 2 behind each of the first data sequences to form L
  • a data sending module 402 configured to transmit the L second data sequences.
  • the data adjustment module 401 is used to insert sequence 1 and sequence 2 respectively before and after each first data sequence to be transmitted to form a second data sequence, and the inserted sequence 1 and sequence 2 are respectively composed of multiple sequences 3 , the data sending module 402 sends the generated multiple second data sequences, so that the data before and after the data sequence are equal, which helps to maintain the signal continuity of the data sequence in the time domain, and can reduce the spectrum leakage between subbands.
  • the data sending module 402 includes:
  • the transformation processing unit is configured to respectively perform Fourier transformation and inverse Fourier transformation on the L second data sequences to form L third data sequences.
  • a cyclic prefix unit configured to add a cyclic prefix to the L third data sequences to form L fourth data sequences.
  • a sequence transmission unit configured to transmit the L fourth data sequences.
  • the cyclic prefix unit is used for:
  • the transformation processing unit in the device includes:
  • the shaping subunit is configured to perform a frequency-domain shaping operation in the frequency domain after performing Fourier transform on the L second data sequences.
  • the inverse transform subunit is configured to perform inverse Fourier transform on the L second data sequences subjected to the frequency domain shaping operation.
  • the number of operation points of the inverse Fourier transform in the transformation processing unit is greater than the number of operation points of the Fourier transform.
  • the length of the third data sequence in the data sending module 402 is the window length of Fourier transform processing
  • the fourth data sequence is a data block length or an OFDM Use OFDM symbol length.
  • the time domain length of the second data sequence in the device is equal to the time domain length of the third data sequence, and the time domain length of the second data sequence is the subcarrier spacing the reciprocal of .
  • the value of M in the L second data sequences in the device is the same, and the value of N is different.
  • the lengths of the L first data sequences are different, and the L The second data sequences have the same length, the L third data sequences have the same length, and the L fourth data sequences have the same length.
  • the L second data sequences in the data sending module 402 are transmitted in the same time slot.
  • the data sending module 402 includes:
  • the first transmission unit is configured to sequentially transmit the L second data sequences in adjacent L data blocks.
  • the second transmission unit is configured to transmit the L second data sequences in L data blocks in adjacent time slots.
  • the data sending module 402 includes at least one of the following situations:
  • sequence 3 in the L second data sequences is different.
  • the sequence 1 and the sequence 2 in the device are reference sequences, wherein the reference sequence includes at least one of a preset sequence and a known sequence at a receiving end.
  • the device further includes:
  • a control transmission module configured to transmit control information, wherein the control information carries indication information indicating the value of N.
  • control transmission module in the device includes:
  • the first control unit is configured to transmit the control information through a downlink control channel or an uplink control channel.
  • the second control unit is configured to transmit the control information through downlink or uplink radio resource control RRC signaling.
  • the sequence 1 and/or the sequence 2 in the device is a data sequence modulated by ⁇ /2 binary phase shift keying BPSK.
  • Fig. 14 is a schematic structural diagram of an electronic device provided by an embodiment of the present application, the electronic device includes a processor 60, a memory 61, an input device 62 and an output device 63; the number of processors 60 in the electronic device can be one or more
  • a processor 60 is taken as an example; the processor 60, memory 61, input device 62 and output device 63 in the electronic device can be connected by bus or other methods, and in FIG. 14, the connection by bus is taken as an example.
  • the memory 61 can be used to store software programs, computer-executable programs and modules, such as the modules corresponding to the data transmission device in the embodiment of the present application (data adjustment module 401 and data sending module 402).
  • the processor 60 executes various functional applications and data processing of the electronic device by running software programs, instructions and modules stored in the memory 61 , that is, implements the above-mentioned data transmission method.
  • the memory 61 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system and at least one application required by a function; the data storage area may store data created according to the use of the electronic device, and the like.
  • the memory 61 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage devices.
  • the memory 61 may include memory located remotely relative to the processor 60, and these remote memories may be connected to the electronic device through a network. Examples of the aforementioned networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.
  • the input device 62 can be used to receive input numbers or character information, and generate key signal input related to user settings and function control of the electronic device.
  • the output device 63 may include a display device such as a display screen.
  • the embodiment of the present application also provides a storage medium containing computer-executable instructions, the computer-executable instructions are used to execute a data transmission method when executed by a computer processor, the method comprising:
  • the present application can be implemented by software and necessary general hardware, or by hardware.
  • the technical solution of the present application can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as a floppy disk of a computer, a read-only memory (Read-Only Memory, ROM), a random access memory ( Random Access Memory, RAM), flash memory (FLASH), hard disk or CD, etc., including several instructions to make a computer device (which can be a personal computer, server, or network device, etc.) execute the method described in each embodiment of the present application .
  • a computer-readable storage medium such as a floppy disk of a computer, a read-only memory (Read-Only Memory, ROM), a random access memory ( Random Access Memory, RAM), flash memory (FLASH), hard disk or CD, etc.
  • the included units and modules are only divided according to the functional logic, but are not limited to the above-mentioned division, as long as the corresponding functions can be realized; in addition, the names of the functional units are only for the purpose of It is convenient to distinguish each other and is not used to limit the protection scope of the present application.
  • the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be composed of several physical components. Components cooperate to execute.
  • Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit .
  • a processor such as a central processing unit, digital signal processor, or microprocessor
  • Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media).
  • computer storage media includes both volatile and nonvolatile media implemented in any method or technology for storage of information, such as computer readable instructions, data structures, program modules, or other data. permanent, removable and non-removable media.
  • Computer storage media include, but are not limited to, RAM, ROM, Electrically Erasable Programmable Read-Only Memory (EEPROM), flash memory or other memory technologies, Compact Disc Read-Only Memory (CD) -ROM), Digital Versatile Disc (DVD) or other optical disk storage, magnetic cartridges, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other storage device that can be used to store desired information and that can be accessed by a computer medium.
  • communication media typically embodies computer readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media .

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Abstract

本文公开了一种数据传输方法、装置、电子设备和存储介质。该数据传输方法包括：在待传输的L个第一数据序列的每个第一数据序列的前面***序列1以及在每个第一数据序列的后面***序列2以形成L个第二数据序列，其中，L为大于或等于2的整数，所述序列1包括M个序列3，所述序列2包括N个序列3，M和N均为大于0的整数；所述序列3满足KT 3＝T cp，其中，T3为所述序列3的时域时间长度，K为大于0且小于或等于N的整数，T cp为循环前缀的时间长度；传输所述L个第二数据序列。

Description

数据传输方法、装置、电子设备和存储介质 技术领域
本申请涉及无线通信技术领域，例如涉及一种数据传输方法、装置、电子设备和存储介质。
背景技术
第五代新空口(Fifth Generation New Radio，5G NR)采用正交频分复用(Orthogonal Frequency Division Multiplexing，OFDM)技术，子载波和OFDM符号构成的时频资源组成5G NR***的无线物理时频资源。OFDM技术采用循环前缀(Cyclic Prefix，CP)来解决多径时延问题，将频率选择性信道分为一套平行的平坦衰落信道，对信道估计方法进行了简化。离散傅里叶变换扩展(Discrete Fourier Transform spread，DFTs)OFDM技术是以CP-OFDM为基础，在子载波映射前添加离散傅里叶变换DFT，可以解决CP-OFDM的高峰值平均功率比(Peak Average Power Radio，PAPR)问题。CP虽然可以抵挡多径时延，但CP不携带任何有用数据，导致无线物理时频资源开销的浪费，尤其在频段为高频时，例如，当频段范围大于52.6GHZ时，由于子载波间隔的增大，符号长度的缩短，CP的开销问题变得更加严重。由于CP-OFDM存在基础波形频谱泄露的现象，而5G NR支持不同参数集的混合使用，支持相邻子带间携带不同的子载波间隔，因此，相邻子带间存在干扰。相关技术中在数据传输过程中利用时域软CP或滤波方式来降低子带间的频谱泄露和干扰，然而这种方式仍需要在不同子载波间隔的子带之间使用保护间隔，降低了数据传输的频谱效率。
发明内容
本申请实施例的主要目的在于提出一种数据传输方法、装置、电子设备和存储介质，其旨在降低子带间的频谱泄露和干扰，缩小不同子载波间隔之间的保护间隔，提高数据传输的频谱效率。
本申请实施例提供了一种数据传输方法，该方法包括：
在待传输的L个第一数据序列的每个所述第一数据序列的前面***序列1以及在每个所述第一数据序列的后面***序列2以形成L个第二数据序列，其中，所述L为整数，L>＝2，序列1包括M个序列3，序列2包括N个序列3，所述M和N均为大于0的整数；所述序列3满足KT 3＝T cp，其中，T 3为所述序列3的时域时间长度，K为整数，0<K<＝N，T cp为循环前缀的时间长度；传输 所述L个第二数据序列。
本申请实施例还提供了一种数据传输装置，该装置包括：
数据调整模块，用于在待传输的L个第一数据序列的每个所述第一数据序列的前面***序列1以及在每个所述第一数据序列的后面***序列2以形成L个第二数据序列，其中，所述L为整数，L>＝2，序列1包括M个序列3，序列2包括N个序列3，所述M和N均为大于0的整数；所述序列3满足KT 3＝T cp，其中，T 3为所述序列3的时域时间长度，K为整数，0<K<＝N，T cp为循环前缀的时间长度；数据发送模块，用于传输所述L个第二数据序列。
本申请实施例还提供了一种电子设备，该电子设备包括：
一个或多个处理器；存储器，用于存储一个或多个程序；当所述一个或多个程序被所述一个或多个处理器执行，使得所述一个或多个处理器实现如本申请实施例中任一所述的数据传输方法。
本申请实施例还提供了一种计算机可读存储介质，其上存储有计算机程序，该计算机程序被处理器执行时实现如本申请实施例中任一所述的数据传输方法。
本申请实施例，通过在待传输的多个第一数据序列的每个第一数据序列的前边和后边分别***序列1和序列2以形成多个第二数据序列，其中，***的序列1和序列2分别由一个或者多个序列3组成，且，序列3的时域时间长度的整数倍为循环前缀的时域时间长度，将生成的多个第二数据序列发送，实现了通过在各第一数据序列的前后分别***序列1和序列2，使得数据序列前后的数据均相等，有助于保持数据序列在时域中的信号连续性，可降低子带间的频谱泄露。
附图说明
图1是本申请实施例提供的一种数据传输方法的流程图；
图2是本申请实施例提供的另一种数据传输方法的流程图；
图3是本申请实施例提供的另一种数据传输方法的流程图；
图4是本申请实施例提供的一种数据序列的示例图；
图5是本申请实施例提供的另一种数据序列的示例图；
图6是本申请实施例提供的另一种数据序列的示例图；
图7是本申请实施例提供的另一种数据序列的示例图；
图8是本申请实施例提供的另一种数据序列的示例图；
图9是本申请实施例提供的另一种数据序列的示例图；
图10是本申请实施例提供的另一种数据序列的示例图；
图11是本申请实施例提供的另一种数据传输方法的示例图；
图12是本申请实施例提供的另一种数据序列的示例图；
图13是本申请实施例提供的一种数据传输装置的结构示意图；
图14是本申请实施例提供的一种电子设备的结构示意图。
具体实施方式
此处所描述的具体实施例仅仅用以解释本申请。
在后续的描述中，使用用于表示元件的诸如“模块”、“部件”或“单元”的后缀仅为了有利于本申请的说明，其本身没有特有的意义。因此，“模块”、“部件”或“单元”可以混合地使用。
图1是本申请实施例提供的一种数据传输方法的流程图，本申请实施例可适用于数据调制发送的情况，该方法可由本申请实施例提供的数据传输装置来执行，该装置可有通过软件和/或硬件的方式实现，参见图1，本申请实施例提供的方法包括：
110、在待传输的L个第一数据序列的每个第一数据序列的前面***序列1以及在每个第一数据序列的后面***序列2以形成L个第二数据序列，其中，L为整数，L>＝2，序列1包括M个序列3，序列2包括N个序列3，M和N均为大于0的整数；序列3满足KT 3＝T cp，其中，T 3为序列3的时域时间长度，K为整数，0<K<＝N，T cp为循环前缀的时间长度。
第一数据序列可以是需要进行调制发送的数据序列，第一数据序列中还可以包含参考信号数据。第一数据序列的数量可以为一个或者多个。序列1和序列2可以***到第一数据序列前面或者后面，序列1和序列2可分别包括一个或者多个序列3，可以通过设计合适的序列3，使得循环前缀的时间长度为序列3的时间长度的整数倍，且该整数倍最大取值不超过序列2中包括的序列3的数量。
在本申请实施例中，可以对待传输的多个第一数据序列进行处理，可以在各第一数据序列的前面以及后面分别***序列1和序列2，其中，序列1和序列2可以由一个或者多个序列3组成，序列3满足KT 3＝T cp，其中，T 3为序列3的时域时间长度，K为整数，0<K<＝N，T cp为循环前缀的时间长度。
120、传输L个第二数据序列。
可以发送在各第一数据序列中***序列1和序列2后形成的第二数据序列。
本申请实施例，通过在待传输的各第一数据序列的前面和后面分别***序列1和序列2形成第二数据序列，***的序列1和序列2分别由多个序列3组成，将生成的多个第二数据序列发送，使得数据序列前后的数据均相等，有助于保持数据序列在时域中的信号连续性，可降低子带间的频谱泄露。
图2是本申请实施例提供的另一种数据传输方法的流程图，本申请实施例是在上述申请实施例基础上进行说明，参见图2，本申请实施例提供的方法包括：
210、在待传输的L个第一数据序列的每个第一数据序列的前面***序列1以及在每个第一数据序列的后面***序列2以形成L个第二数据序列，其中，L为整数，L>＝2，序列1包括M个序列3，序列2包括N个序列3，M和N均为大于0的整数；序列3满足KT 3＝T cp，其中，T 3为序列3的时域时间长度，K为整数，0<K<＝N，T cp为循环前缀的时间长度。
220、对L个第二数据序列分别进行傅里叶变换和傅里叶逆变换，形成L个第三数据序列。
傅里叶变换处理可以是将数据从时域信号转换为频域信号处理，傅里叶逆变换可以是将频域信号转换为时域信号的处理，傅里叶变换和傅里叶逆变换在周期内采样的点数可以相同也可以不同，例如，当傅里叶变换的在周期内采样的点数小于傅里叶逆变换在周期内采样的点数时，对第二数据序列的处理可以为过采样的处理。
在本申请实施例中，可以对各第二数据序列分别进行傅里叶变换和傅里叶逆变换，不同的第二数据序列在进行傅里叶变换和傅里叶逆变换时的点数可以相同也可以不同，相同第二数据序列进行的傅里叶变换和傅里叶逆变换时的点数可以相同也可以不同。
230、为L个第三数据序列添加循环前缀，形成L个第四数据序列。
循环前缀可以是为消除多径传播的影响和信道干扰而在空间的传输时段内***的信号。
可以在各第三数据序列中添加循环前缀作为第四数据序列。
240、传输L个第四数据序列。
在本申请实施例中，可以将生成的第四数据序列发送。
在上述申请实施例的基础上，为L个第三数据序列添加循环前缀，包括：
针对各第三数据序列，将第三数据序列中后面的长度为KT 3的部分添加到第三数据序列的前面。
可以将各第三数据序列中后面的序列长度为KT 3的信息添加到对应的第三数据序列的前面，例如，第三数据序列为信息BC，其中，信息C为第三数据序列中后面的序列长度为KT 3的信息，可以将信息C添加到第三数据序列BC的前面，形成CBC。
在上述申请实施例的基础上，对L个第二数据序列分别进行傅里叶变换和傅里叶逆变换，包括：
对L个第二数据序列进行傅里叶变换后，在频域对傅里叶变换后的L个第二数据序列进行频域赋形操作；对经过频域赋形操作的L个第二数据序列进行傅里叶逆变换。
频域赋形可以是将经过傅里叶变换生成的离散频域数据通过点乘频谱赋形序列以降低峰值平均功率比的处理，其中，频谱赋形序列可以是预先确定的序列。
在本申请实施例中，可以依次对生成的多个第二数据序列进行傅里叶变换，将各第二数据序列转换为频域信号。可以确定各频域信号形式的第二数据序列与预设的频域赋形序列的乘积，然后可以将经过频域赋形的第二数据序列对应的频域信号进行傅里叶逆变换处理，将各第二数据序列转换为时域信号。
在上述申请实施例的基础上，傅里叶逆变换的操作点数大于傅里叶变换的操作点数。
操作点数可以是周期内对频谱进行采样的数量，例如，64点FFT可以是按照快速傅里叶变换(Fast Fourier Transform，FFT)在一个周期内对频谱均匀进行采样64次的操作。
在本申请实施例中，傅里叶逆变换的操作点数大于傅里叶变换的操作点数，也就是在进行频域转换到时域过程中对频谱进行采样的采样率大于在进行时域转换到频域过程中对频谱进行采样的采样率，可以为过采样的信号处理。
在上述申请实施例的基础上，所述第三数据序列长度为傅里叶变换处理的窗口长度，第四数据序列为一个数据块长度或一个正交频分复用OFDM符号长度。
第三数据序列可以由第二数据序列经过傅里叶变换生成，第三数据序列的长度可以与傅里叶变换处理的窗口长度相同，第四数据序列为发送时延的数据序列，第四数据序列可以在一个数据块或者正交频分复用OFDM符号发送，相应的，第四数据序列为一个数据块长度或一个正交频分复用OFDM符号长度。
在上述申请实施例的基础上，第二数据序列的起止位置为所述傅里叶变换处理的起止位置。
傅里叶变换处理可以针对第二数据序列，将第二数据序列的起始位置和结束位置分别作为傅里叶变换处理的起始位置和结束位置。
在上述申请实施例的基础上，第二数据序列的时域长度等于第三数据序列的时域长度，且，第二数据序列的时域长度为子载波间隔的倒数。
第二数据序列的时域长度可以与第三数据序列的时域长度相同，第二数据序列的时域长度为子载波间隔的倒数。
在上述申请实施例的基础上，L个第二数据序列中M的取值相同，N的取值不同。
在各第二数据序列中在前面***的序列1中包括的序列3的数量可以相同，在后面***的序列2中包括的序列3的数量可以不同。
在上述申请实施例的基础上，在L个第二数据序列中N的取值不同的情况下，L个第一数据序列的长度不同，L个第二数据序列的长度相同，L个第三数据序列的长度相同，L个第四数据序列的长度相同。
在本申请实施例中，由于第一数据序列中***的序列2中包括的序列3的取值不同，也即N的取值不同。第一数据序列的长度不同时，可以在第一数据序列中***的包含不同数量的序列3的序列2，也即序列2中N的取值不同，可以使得各第二数据序列的长度相同，可以使得各第三数据序列的长度相同，也可以使得各第四数据序列的长度相同。
在上述申请实施例的基础上，传输L个第二数据序列，包括：在相邻的L个数据块里依次传输L个第二数据序列。
可以将多个第二数据序列在相邻的L个数据块中传输。
在上述申请实施例的基础上，传输L个第二数据序列，包括：在相邻时隙里的L个数据块里传输所述L个第二数据序列。
可以将多个第二数据序列在相邻的L个相邻时隙内传输。
在上述申请实施例的基础上，传输所述L个第二数据序列，包括以下至少一种情况：
在同一时隙里传输所述L个第二数据序列，则所述L个第二数据序列中的序列3相同；在不同时隙里传输所述L个第二数据序列，则所述L个第二数据序列中的序列3不同。
在本申请实施例中，可以在相同时隙内传输生成的多个第二数据序列，当在相同的时隙内传输第二数据序列时，第二数据序列中***的序列1和序列2中包括的序列3的内容可以相同。还可以在不同时隙内传输生成的多个第二数 据序列，不同时隙内传输的第二数据序列的中***的序列1和序列2中包括的序列3的内容可以不同。
在上述申请实施例的基础上，序列1和所述序列2为参考序列，其中，所述参考序列包括预设序列、和接收端已知序列中的至少一种。
序列1、以及序列2可以为参考序列，其中，参考序列可以是预设序列和/或接收端已知序列，例如，接收端已知序列可以包括按照协议标准设置的序列或者已经发送过的序列等。
在上述申请实施例的基础上，第一数据序列包括星座点调制的数据和P个参考序列数据，P>＝0。
第一数据可以由星座点调制过的数据和多个参考数据序列组成。
图3是本申请实施例提供的另一种数据传输方法的流程图，本申请实施例是在上述申请实施例基础上进行说明，参见图3，本申请实施例提供的方法包括：
310、在待传输的L个第一数据序列的每个第一数据序列的前面***序列1以及在每个第一数据序列的后面***序列2以形成L个第二数据序列，其中，L为整数，L>＝2，序列1包括M个序列3，序列2包括N个序列3，M和N均为大于0的整数；序列3满足KT 3＝T cp，其中，T 3为序列3的时域时间长度，K为整数，0<K<＝N，T cp为循环前缀的时间长度。
320、传输L个第二数据序列。
330、传输控制信息，其中，所述控制信息中携带有指示N取值的指示信息。
控制信息可以是控制第二数据序列进行解调制的信息，控制信息可以包括一个或者多个字段，不同字段上的信息可以分别代表解调制使用的不同信息，指示信息可以是指示***到第二数据序列的序列2包括的序列3的数量。指示信息可以是控制信息的信息格式中一个或者多个字段的信息，该字段可以预先设置或者协议规定。
在本申请实施例中，在发送各第二数据序列后，还可以将控制第二数据序列解调制的控制信息发送，控制信息中可以携带有指示各第二数据序列中***的序列2包括的序列3的数量的信息。
在上述申请实施例的基础上，所述传输控制信息包括：通过下行控制信道或上行控制信道传输所述控制信息。
控制信息可以是下行控制信道或者上行控制信道传输的控制信息。
在上述申请实施例的基础上，所述传输控制信息包括：通过下行或上行无线资源控制RRC信令传输所述控制信息。
在本申请实施例中，控制信息可以在下行无线资源控制信令中传输或者上行无线资源控制信令中传输。
在上述申请实施例的基础上，所述序列1和/或序列2为π/2二进制相移键控调制的数据序列。
在本申请实施例中，序列1和序列2中至少一个序列可以是经过π/2二进制相移键控调制(Binary Phase Shift Keying，BPSK)的数据序列。
在一个示例性的实施方式中，在传输L个待发送的数据序列前，可以对每个数据序列进行时频域调制，图4是本申请实施例提供的一种数据序列的示例图，参见图4，待传输的L个第一数据序列包括数据1和数据2，即L＝2，包括2个第一数据序列，在其他实施例中，L的取值可以为大于或等于2的任意整数。在待传输的数据1的前面和后面分别***序列1和序列2，形成第1个第二数据序列，其中，序列1可以由1个序列3组成，序列2由2个序列3组成，第1个第二数据序列中M的取值为1，N的取值为2。在待传输的数据2的前面和后面分别***序列1和序列2，形成第2个第二数据序列，其中，序列1由1个序列3组成，序列2由2个序列3组成，第2个第二数据序列中M的取值为1，N的取值为2。在本申请实施例中序列3的时域时间长度T 3等于循环前缀的时间长度T cp，第1个第二数据序列和第2个第二数据序列中的M的取值相同，N的取值相同。
在一个示例性的实施方式中，在传输L个待发送的数据序列之前，可以对每个数据序列进行调制，图5是本申请实施例提供的另一种数据序列的示例图，参见图4，待传输的L个第一数据序列包括数据1和数据2，即L＝2。在待传输的数据1的前面和后面分别***序列1和序列2，形成第1个第二数据序列，其中，序列1可以由1个序列3组成，序列2由3个序列3组成，则在第1个第二数据序列中M＝1，N＝3。在待传输的数据2的前面和后面分别***序列1和序列2，形成第2个第二数据序列，其中，序列1由1个序列3组成，序列2由3个序列3组成，在第2个第二数据序列中M＝1，N＝3。在本申请实施例中，序列3的时域时间长度T 3可以等于循环前缀的时间长度T cp的一半，序列3满足KT 3＝T cp，其中，K＝2，K<N，在本申请实施例中形成L个第二数据序列，M的取值相同，N的取值相同。
在一个示例性的实施方式中，在传输L个待发送的数据序列前，可以对每个数据序列进行时频域调制，图6是本申请实施例提供的另一种数据序列的示例图，参见图6，待传输的L个第一数据序列分别为数据1和数据2，即L＝2。在待传输的数据1的前面和后面分别***序列1和序列2，形成第1个第二数据序列，其中，序列1由1个序列3组成，序列2由2个序列3组成，在第1个 第二数据序列中M＝1，N＝2。在待传输的数据2的前面和后面分别***序列1和序列2，形成第2个第二数据序列，其中，序列1由1个序列3组成，序列2由3个序列3组成，在第2个第二数据序列中M＝1，N＝3。序列3的时域时间长度T 3等于循环前缀的时间长度T cp，KT 3＝T cp，其中，K＝1，K<N，在本申请实施例中形成的L个第二数据序列中M的取值相同，N的取值不同。
在一个示例性的实施方式中，在传输L个待发送的数据序列之前，可以对每个数据序列进行调制，图7是本申请实施例提供的另一种数据序列的示例图，参见图7，在L个待传输的第一数据序列的每个第一数据序列的前面和后面分别***序列1和序列2，形成L个第二数据序列，其中，序列1由M个序列3组成，序列2由N个序列3组成。对L个第二数据序列分别进行FFT后，在频域对FFT后的第二数据序进行频域赋形(Frequency Domain Spectrum Shaping，FDSS)操作，然后在频域数据的两边分别添加零子载波，然后对添加零子载波后的频域数据进行快速傅里叶逆变换(Invert Fast Fourier Transformation，IFFT)，形成L个第三数据序列。其中，IFFT的操作点数大于FFT的操作点数，即第三数据序列为过采样后的数据序列，第二数据序列的时域长度等于第三数据序列的时域长度，并且等于子载波间隔的倒数。可以将第1个第三数据序列数据1’中后面的长度为KT 3的部分添加到第1个第三数据序列数据1’的前面，形成第1个第四数据序列，将第2个第三数据序列数据2’中后面的长度为KT 3的部分添加到第2个第三数据序列数据2’的前面，形成第2个第四数据序列。其中，T 3为序列3的时域时间长度，在本申请实施例中，K的取值为1。
在一个示例性的实施方式中，在传输L个待发送的数据序列之前，可以对每个数据序列进行处理，图8是本申请实施例提供的另一种数据序列的示例图，参见图8，可以在待传输的L个第一数据序列的每个第一数据序列的前面和后面分别***序列1和序列2，形成L个第二数据序列，其中，序列1由M个序列3组成，序列2由N个序列3组成，在本申请实施例中，M的取值为1，N的取值为2。将K个序列3添加到L个第二数据序列前面形成第三数据序列，其中，T 3为序列3的时域时间长度，序列3可以满足KT 3＝T cp，T cp为循环前缀的时间长度，在本申请实施例中，K＝1。可以传输经过处理生成的L个第三数据序列。
在一个示例性的实施方式中，在传输L个待发送的数据序列之前，可以对每个数据序列进行处理，图9是本申请实施例提供的另一种数据序列的示例图，在待传输的第1个第一数据序列数据1的前面和后面分别***序列1和序列2，形成第1个第二数据序列，其中，序列1由1个序列3组成，序列2由2个序列3组成，在第1个第二数据序列中M的取值为1，N的取值为2。在待传输的第2个第一数据序列数据2的前面和后面分别***序列1和序列2，形成第2个第二数据序列，其中，序列1由1个序列3组成，序列2由3个序列3组成， 在第2个第二数据序列中M的取值等于1，N的取值等于3。第1个第二数据序列与第2个第二数据序列中M的取值相同，N的取值不同。数据1的长度与数据2的长度不同，形成的第1个第二数据序列的长度与第2个第二数据序列的长度相同。对L个第二数据序列分别进行傅里叶变换和傅里叶逆变换之后，形成第1个第三数据序列和第2个第三数据序列。形成的L个第三数据序列的长度均相同，第二数据序列的时域长度等于第三数据序列的时域长度，并等于子载波间隔的倒数。
可以将第1个第三数据序列数据1’中后面的长度为KT 3的部分添加到数据1’的前面形成第1个第四数据序列；可以将第2个第三数据序列数据2’中后面的长度为KT 3的部分添加到数据2’的前面，形成第2个第四数据序列，其中，T 3为序列3的时域时间长度，K的取值为1。第1个第四数据序列与第2个第四数据序列的长度相同，添加的循环前缀也相同。由于数据1和数据2的长度不同，添加循环前缀后生成第1个第四数据序列和第2个第四数据序列的长度相同，第1个第四数据序列与第2个第四数据序列抵抗多径时延的能力不同，在数据1的长度大于数据2的长度的情况下，第1个第四数据序列抵抗多径时延的能力低于第2个第四数据序列抵抗多径时延的能力。
在一个示例性的实施方式中，在传输L个待发送的数据序列之前，可以对每个数据序列进行处理，图10是本申请实施例提供的另一种数据序列的示例图，其示出了第一数据序列、第二数据序列、第四数据序列和第四数据序列的时间关系，参见图10，在待传输的第一数据序列数据1的前面和后面分别***序列1和序列2，形成第1个第二数据序列，其中，序列1由1个序列3组成，序列2由2个序列3组成。在待传输的第2个第二数据序列数据2的前面和后面分别***序列1和序列2，其中，序列1由1个序列3组成，序列2由3个序列3组成。
在本申请实施例中，可以对形成的2个第二数据序列分别进行傅里叶变换和傅里叶逆变换形成2个第三数据序列，第二数据序列的时域长度等于第三数据序列的时域长度。第二数据序列的起止位置与后续傅里叶变换的起止位置相同，第三数据序列的长度为傅里叶变换处理的窗口长度。将2个第三数据序列中每个第三数据序列中后面的长度为T 3的部分添加到第三数据序列前面形成2个第四数据序列，其中，T 3为序列3的时域时间长度，等于循环前缀的长度，本申请实施例中K的取值可以为1。第四数据序列为一个数据块长度或一个正交频分复用(Orthogonal Frequency Division Multiplexing，OFDM)符号长度，也就是一个数据块长度或一个OFDM符号长度等于FFT处理窗口长度与循环前缀时间长度的和，也即相邻数据块间隔或符号间隔大于第三数据序列的长度。
在一个示例性的实施方式中，L个第二数据序列在相邻时隙里传输，图11是本申请实施例提供的另一种数据传输方法的示例图，参见图11，相邻时隙分别为第1时隙和第2时隙。第1时隙有L个数据块，L个第二数据序列在第1时隙中的L个数据块里传输，L个第二数据序列中序列1由M个序列3组成，序列2由N个序列3组成。第2时隙有L个数据块，L个第二数据序列在第2时隙中L个数据块里传输，L个第二数据序列中序列1由M个序列3组成，序列2由N个序列3组成。第1时隙里的序列3均相同，第2时隙里的序列3均相同，第1时隙里的序列3与第2时隙里的序列3不同，序列3的内容可以与时隙相关。
在一个示例性的实施方式中，第一数据序列包括P个参考序列数据，图12是本申请实施例提供的另一种数据序列的示例图，参见图12，第一数据序列包含了数据序列、参考序列P1和参考序列P2，第一数据序列中的数据序列为π/2二进制相移键控(Binary Phase Shift Keying，BPSK)调制的数据序列，在其他的实施例中，第一数据序列中包括的数据序列可以通过其他调制方式进行调制，例如，振幅调制、频率调制、相位调制等。第一数据序列中的参考序列可以为其他参考序列，本申请实施例中的第一数据序列中的参考序列P1、参考序列P2、序列1和序列2可以为接收端已知的序列，例如，可以接收端已经接收的序列或者是预先配置的序列等。
图13是本申请实施例提供的一种数据传输装置的结构示意图，可执行本申请任意实施例提供的数据传送方法，具备执行方法相应的功能模块和效果，该装置可以由软件和/或硬件实现，包括：数据调整模块401和数据发送模块402。
数据调整模块401，用于在待传输的L个第一数据序列的每个所述第一数据序列的前面***序列1以及在每个所述第一数据序列的后面***序列2以形成L个第二数据序列，其中，所述L为整数，L>＝2，序列1包括M个序列3，序列2包括N个序列3，所述M和N均为大于0的整数；所述序列3满足KT 3＝T cp，其中，T 3为所述序列3的时域时间长度，K为整数，0<K<＝N，T cp为循环前缀的时间长度。
数据发送模块402，用于传输所述L个第二数据序列。
本申请实施例，通过数据调整模块401在待传输的各第一数据序列的前面和后面分别***序列1和序列2形成第二数据序列，***的序列1和序列2分别由多个序列3组成，数据发送模块402将生成的多个第二数据序列发送，使得数据序列前后的数据均相等，有助于保持数据序列在时域中的信号连续性，可降低子带间的频谱泄露。
在上述申请实施例的基础上，所述数据发送模块402包括：
变换处理单元，用于对所述L个第二数据序列分别进行傅里叶变换和傅里叶逆变换，形成L个第三数据序列。
循环前缀单元，用于为所述L个第三数据序列添加循环前缀，形成L个第四数据序列。
序列传输单元，用于传输所述L个第四数据序列。
在上述申请实施例的基础上，所述循环前缀单元用于：
针对各所述第三数据序列，将所述第三数据序列后面长度为KT 3的部分添加到所述第三数据序列的前面。
在上述申请实施例的基础上，所述装置中的变换处理单元包括：
赋形子单元，用于对所述L个第二数据序列进行傅里叶变换后，在频域进行频域赋形操作。
逆变换子单元，用于对经过所述频域赋形操作的所述L个第二数据序列进行傅里叶逆变换。
在上述申请实施例的基础上，所述变换处理单元中的傅里叶逆变换的操作点数大于所述傅里叶变换的操作点数。
在上述申请实施例的基础上，所述数据发送模块402中的第三数据序列长度为傅里叶变换处理的窗口长度，所述第四数据序列为一个数据块长度或一个正交频分复用OFDM符号长度。
在上述申请实施例的基础上，所述装置中的第二数据序列的时域长度等于所述第三数据序列的时域长度，且，所述第二数据序列的时域长度为子载波间隔的倒数。
在上述申请实施例的基础上，所述装置中的L个第二数据序列中所述M的取值相同，所述N的取值不同。
在上述申请实施例的基础上，所述装置中在所述L个第二数据序列中所述N的取值不同的情况下，所述L个第一数据序列的长度不同，所述L个第二数据序列的长度相同，所述L个第三数据序列的长度相同，所述L个第四数据序列的长度相同。
在上述申请实施例的基础上，数据发送模块402中的所述L个第二数据序列在同一个时隙里传输。
在上述申请实施例的基础上，数据发送模块402包括：
第一传输单元，用于在相邻的L个数据块里依次传输所述L个第二数据序 列。
第二传输单元，用于在相邻时隙里的L个数据块里传输所述L个第二数据序列。
在上述申请实施例的基础上，数据发送模块402包括以下至少一种情况：
在同一时隙里传输所述L个第二数据序列，则所述L个第二数据序列中的序列3相同；
在不同时隙里传输所述L个第二数据序列，则所述L个第二数据序列中的序列3不同。
在上述申请实施例的基础上，所述装置中的序列1和所述序列2为参考序列，其中，所述参考序列包括预设序列、和接收端已知序列中的至少一种。
在上述申请实施例的基础上，所述装置中的所述第一数据序列包括星座点调制的数据和P个参考序列数据，P>＝0。
在上述申请实施例的基础上，所述装置还包括：
控制传输模块，用于传输控制信息，其中，所述控制信息中携带有指示所述N取值的指示信息。
在上述申请实施例的基础上，所述装置中的控制传输模块包括：
第一控制单元，用于通过下行控制信道或上行控制信道传输所述控制信息。
第二控制单元，用于通过下行或上行无线资源控制RRC信令传输所述控制信息。
在上述申请实施例的基础上，所述装置中的序列1和/或所述序列2为π/2二进制相移键控BPSK调制的数据序列。
图14是本申请实施例提供的一种电子设备的结构示意图，该电子设备包括处理器60、存储器61、输入装置62和输出装置63；电子设备中处理器60的数量可以是一个或多个，图14中以一个处理器60为例；电子设备中处理器60、存储器61、输入装置62和输出装置63可以通过总线或其他方式连接，图14中以通过总线连接为例。
存储器61作为一种计算机可读存储介质，可用于存储软件程序、计算机可执行程序以及模块，如本申请实施例中的数据传输装置对应的模块(数据调整模块401和数据发送模块402)。处理器60通过运行存储在存储器61中的软件程序、指令以及模块，从而执行电子设备的各种功能应用以及数据处理，即实现上述的数据传输方法。
存储器61可主要包括存储程序区和存储数据区，其中，存储程序区可存储操作***、至少一个功能所需的应用程序；存储数据区可存储根据电子设备的使用所创建的数据等。此外，存储器61可以包括高速随机存取存储器，还可以包括非易失性存储器，例如至少一个磁盘存储器件、闪存器件、或其他非易失性固态存储器件。在一些实例中，存储器61可包括相对于处理器60远程设置的存储器，这些远程存储器可以通过网络连接至电子设备。上述网络的实例包括但不限于互联网、企业内部网、局域网、移动通信网及其组合。
输入装置62可用于接收输入的数字或字符信息，以及产生与电子设备的用户设置以及功能控制有关的键信号输入。输出装置63可包括显示屏等显示设备。
本申请实施例还提供一种包含计算机可执行指令的存储介质，所述计算机可执行指令在由计算机处理器执行时用于执行一种数据传输方法，该方法包括：
在待传输的L个第一数据序列的每个所述第一数据序列的前面***序列1以及在每个所述第一数据序列的后面***序列2以形成L个第二数据序列，其中，所述L为整数，L>＝2，序列1包括M个序列3，序列2包括N个序列3，所述M和N均为大于0的整数；所述序列3满足KT 3＝T cp，其中，T 3为所述序列3的时域时间长度，K为整数，0<K<＝N，T cp为循环前缀的时间长度；传输所述L个第二数据序列。
通过以上关于实施方式的描述，本申请可借助软件及必需的通用硬件来实现，也可以通过硬件实现。本申请的技术方案可以以软件产品的形式体现出来，该计算机软件产品可以存储在计算机可读存储介质中，如计算机的软盘、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、闪存(FLASH)、硬盘或光盘等，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例所述的方法。
上述装置的实施例中，所包括的各个单元和模块只是按照功能逻辑进行划分的，但并不局限于上述的划分，只要能够实现相应的功能即可；另外，各功能单元的名称也只是为了便于相互区分，并不用于限制本申请的保护范围。
上文中所公开方法中的全部或某些步骤、***、设备中的功能模块/单元可以被实施为软件、固件、硬件及其适当的组合。
在硬件实施方式中，在以上描述中提及的功能模块/单元之间的划分不一定对应于物理组件的划分；例如，一个物理组件可以具有多个功能，或者一个功能或步骤可以由若干物理组件合作执行。某些物理组件或所有物理组件可以被实施为由处理器，如中央处理器、数字信号处理器或微处理器执行的软件，或 者被实施为硬件，或者被实施为集成电路，如专用集成电路。这样的软件可以分布在计算机可读介质上，计算机可读介质可以包括计算机存储介质(或非暂时性介质)和通信介质(或暂时性介质)。如本领域普通技术人员公知的，术语计算机存储介质包括在用于存储信息(诸如计算机可读指令、数据结构、程序模块或其他数据)的任何方法或技术中实施的易失性和非易失性、可移除和不可移除介质。计算机存储介质包括但不限于RAM、ROM、带电可擦可编程只读存储器(Electrically Erasable Programmable Read-Only Memory，EEPROM)、闪存或其他存储器技术、光盘只读存储器(Compact Disc Read-Only Memory，CD-ROM)、数字多功能盘(Digital Versatile Disc，DVD)或其他光盘存储、磁盒、磁带、磁盘存储或其他磁存储装置、或者可以用于存储期望的信息并且可以被计算机访问的任何其他的介质。此外，本领域普通技术人员公知的是，通信介质通常包含计算机可读指令、数据结构、程序模块或者诸如载波或其他传输机制之类的调制数据信号中的其他数据，并且可包括任何信息递送介质。

Claims (24)

  1. 一种数据传输方法，包括：
    在待传输的L个第一数据序列的每个第一数据序列的前面***序列1以及在每个第一数据序列的后面***序列2以形成L个第二数据序列，其中，L为大于或等于2的整数，所述序列1包括M个序列3，所述序列2包括N个序列3，M和N均为大于0的整数；所述序列3满足KT 3＝T cp，其中，T 3为所述序列3的时域时间长度，K为大于0且小于或等于N的整数，T cp为循环前缀的时间长度；
    传输所述L个第二数据序列。
  2. 根据权利要求1所述的方法，其中，所述传输所述L个第二数据序列，包括：
    对所述L个第二数据序列分别进行傅里叶变换和傅里叶逆变换，形成L个第三数据序列；
    为所述L个第三数据序列添加循环前缀，形成L个第四数据序列；
    传输所述L个第四数据序列。
  3. 根据权利要求2所述的方法，其中，所述为所述L个第三数据序列添加循环前缀，包括：
    针对每个第三数据序列，将所述每个第三数据序列中后面的长度为KT 3的部分添加到所述每个第三数据序列的前面。
  4. 根据权利要求2所述的方法，其中，所述对所述L个第二数据序列分别进行傅里叶变换和傅里叶逆变换，包括：
    对所述L个第二数据序列进行傅里叶变换后，在频域对傅里叶变换后的所述L个第二数据序列进行频域赋形操作；
    对经过所述频域赋形操作的所述L个第二数据序列进行傅里叶逆变换。
  5. 根据权利要求2所述的方法，其中，所述傅里叶逆变换的操作点数大于所述傅里叶变换的操作点数。
  6. 根据权利要求2所述的方法，其中，所述第三数据序列长度为傅里叶变换处理的窗口长度，所述第四数据序列为一个数据块长度或一个正交频分复用OFDM符号长度。
  7. 根据权利要求2所述的方法，其中，所述第二数据序列的起止位置为所述傅里叶变换处理的起止位置。
  8. 根据权利要求2所述的方法，其中，所述第二数据序列的时域长度等于 所述第三数据序列的时域长度，且，所述第二数据序列的时域长度为子载波间隔的倒数。
  9. 根据权利要求1所述的方法，其中，所述L个第二数据序列中M的取值相同，N的取值不同。
  10. 根据权利要求2所述的方法，其中，在所述L个第二数据序列中N的取值不同的情况下，所述L个第一数据序列的长度不同，所述L个第二数据序列的长度相同，所述L个第三数据序列的长度相同，所述L个第四数据序列的长度相同。
  11. 根据权利要求1所述的方法，其中，所述L个第二数据序列在同一个时隙里传输。
  12. 根据权利要求1所述的方法，其中，所述传输所述L个第二数据序列，包括：
    在相邻的L个数据块里依次传输所述L个第二数据序列。
  13. 根据权利要求1所述的方法，其中，所述传输所述L个第二数据序列，包括：
    在相邻时隙里的L个数据块里传输所述L个第二数据序列。
  14. 根据权利要求1所述的方法，其中，所述传输所述L个第二数据序列，包括以下至少之一：
    在同一时隙里传输所述L个第二数据序列的情况下，所述L个第二数据序列中的序列3相同；
    在不同时隙里传输所述L个第二数据序列的情况下，所述L个第二数据序列中的序列3不同。
  15. 根据权利要求1所述的方法，其中，所述序列1和所述序列2为参考序列，其中，所述参考序列包括预设序列、和接收端已知序列中的至少一种。
  16. 根据权利要求1所述的方法，其中，所述第一数据序列包括星座点调制的数据和P个参考序列数据，P大于或等于0。
  17. 根据权利要求1所述的方法，还包括：
    传输控制信息，其中，所述控制信息中携带有指示N取值的指示信息。
  18. 根据权利要求17所述的方法，其中，所述传输控制信息，包括：
    通过下行控制信道或上行控制信道传输所述控制信息。
  19. 根据权利要求17所述的方法，其中，所述传输控制信息，包括：
    通过下行或上行无线资源控制RRC信令传输所述控制信息。
  20. 根据权利要求1所述的方法，其中，所述序列1和所述序列2中的至少之一为π/2二进制相移键控BPSK调制的数据序列。
  21. 根据权利要求1所述的方法，其中，所述序列1和所述序列2为ZC序列。
  22. 一种数据传输装置，包括：
    数据调整模块，设置为在待传输的L个第一数据序列的每个第一数据序列的前面***序列1以及在每个第一数据序列的后面***序列2以形成L个第二数据序列，其中，L为大于或等于2的整数，所述序列1包括M个序列3，所述序列2包括N个序列3，M和N均为大于0的整数；所述序列3满足KT 3＝T cp，其中，T 3为所述序列3的时域时间长度，K为大于0且小于或等于N的整数，T cp为循环前缀的时间长度；
    数据发送模块，设置为传输所述L个第二数据序列。
  23. 一种电子设备，包括：
    至少一个处理器；
    存储器，设置为存储至少一个程序；
    当所述至少一个程序被所述至少一个处理器执行，使得所述至少一个处理器实现如权利要求1-21中任一项所述的数据传输方法。
  24. 一种计算机可读存储介质，存储有计算机程序，其中，所述计算机程序被处理器执行实现如权利要求1-21中任一项所述的数据传输方法。
PCT/CN2022/093763 2021-05-21 2022-05-19 数据传输方法、装置、电子设备和存储介质 WO2022242705A1 (zh)

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