WO2020125697A1 - 数据处理方法及装置、计算机可读存储介质 - Google Patents

数据处理方法及装置、计算机可读存储介质 Download PDF

Info

Publication number
WO2020125697A1
WO2020125697A1 PCT/CN2019/126425 CN2019126425W WO2020125697A1 WO 2020125697 A1 WO2020125697 A1 WO 2020125697A1 CN 2019126425 W CN2019126425 W CN 2019126425W WO 2020125697 A1 WO2020125697 A1 WO 2020125697A1
Authority
WO
WIPO (PCT)
Prior art keywords
data
peak
phase
sampling point
transmitted
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2019/126425
Other languages
English (en)
French (fr)
Inventor
张庆海
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanechips Technology Co Ltd
Original Assignee
Sanechips Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sanechips Technology Co Ltd filed Critical Sanechips Technology Co Ltd
Publication of WO2020125697A1 publication Critical patent/WO2020125697A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/26Systems using multi-frequency codes
    • H04L27/2601Multicarrier modulation systems
    • H04L27/2614Peak power aspects
    • H04L27/2623Reduction thereof by clipping
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/0001Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0015Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy
    • H04L1/0017Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy where the mode-switching is based on Quality of Service requirement
    • H04L1/0018Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy where the mode-switching is based on Quality of Service requirement based on latency requirement
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/26Systems using multi-frequency codes
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/26Systems using multi-frequency codes
    • H04L27/2601Multicarrier modulation systems
    • H04L27/2614Peak power aspects

Definitions

  • the present disclosure relates to data transmission technology in the field of wireless communication, for example, to a data processing method and device, and a computer-readable storage medium.
  • OFDM Orthogonal Frequency Division Multiple
  • 4G fourth generation mobile communication technology
  • 5G fifth generation mobile communication technology
  • PAPR peak-to-average ratio
  • the normal pulse cancellation peak clipping method is used to achieve peak clipping, and the PAPR is reduced by generating the cancellation pulse spectrum and the original signal spectrum to cancel, wherein the cancellation pulse spectrum remains consistent with the original signal spectrum.
  • the peak clipping delay problem will occur in the process of using the normal pulse cancellation peak clipping method to achieve peak clipping, and it will affect the communication performance in a large-bandwidth 5G system.
  • Embodiments of the present invention provide a data processing method and device, and a computer-readable storage medium, which can reduce peak clipping delay and improve communication performance under a large bandwidth.
  • An embodiment of the present invention provides a data processing method, including:
  • the first pulse data is used to carry out delay peak clipping processing on the original data to be transmitted to obtain peak-emitted emission data.
  • An embodiment of the present invention provides a data processing apparatus, including:
  • the interpolation filtering unit is configured to obtain the original data to be transmitted on the transmission channel, and perform interpolation processing on the original data to be transmitted to obtain sampled data;
  • An amplitude and phase unit configured to perform amplitude and phase processing on the sampled data to obtain the amplitude and phase of the sampling point of the sampled data
  • a peak search unit configured to perform peak search processing on the amplitude of the sampling point and the phase of the sampling point to obtain the phase mark information and peak data of the peak sampling point;
  • a polyphase filtering unit configured to perform inverse transform and polyphase filtering on the peak data according to the phase of the sampling point and the phase flag information to obtain first pulse data corresponding to one channel;
  • the peak-shaving unit is set to use the first pulse data to perform peak-delay processing on the original data to be transmitted to obtain peak-emission data.
  • An embodiment of the present invention also provides a data processing apparatus, including:
  • Memory set to store executable data processing instructions
  • the processor is configured to implement the above data processing method when executing the executable data processing instructions stored in the memory.
  • An embodiment of the present invention provides a computer-readable storage medium, which stores executable data processing instructions, and is used to cause the processor to execute the data processing method described above.
  • Embodiments of the present invention provide a data processing method and device, and a computer-readable storage medium. Since the data processing device can first sample the data to be transmitted by interpolation, and then generate pulse data from the sampled data, the pulse In the data generation process, the amplitude and phase processing of the sampled data is first performed, and then the peak search processing is performed for the amplitude and phase of the increased sampling points, to meet the performance improvement under the large bandwidth, and after the peak search processing is completed, After inverse transformation of peak data and polyphase filtering, the obtained pulse data is processed by delay peak clipping using the pulse data and the original data to be transmitted, thereby reducing the peak clipping delay.
  • FIG. 1 is a flowchart 1 of a data processing method according to an embodiment of the present invention.
  • FIG. 2 is an exemplary cordic (coordinate rotation digital calculation) iterative data flow diagram for obtaining amplitude and phase according to an embodiment of the present invention
  • FIG. 3 is an exemplary peak and phase distribution diagram provided by an embodiment of the present invention.
  • FIG. 4 is a block diagram of an exemplary data processing method provided by an embodiment of the present invention.
  • FIG. 5 is a flowchart 2 of a data processing method according to an embodiment of the present invention.
  • FIG. 6 is a hardware block diagram of an exemplary data processing apparatus according to an embodiment of the present invention.
  • FIG. 7 is a flowchart of an exemplary implementation of half-band filtering provided by an embodiment of the present invention.
  • FIG. 8 is a flowchart of an exemplary implementation of multi-channel multi-phase filtering provided by an embodiment of the present invention.
  • FIG. 9 is a structural diagram 1 of a data processing device according to an embodiment of the present invention.
  • FIG. 10 is a second structural diagram of a data processing device according to an embodiment of the present invention.
  • each subframe has a maximum of 16 slots, and each slot is fixed with 14 symbols.
  • OFDM defines 5 subcarrier intervals, the greater the subcarrier interval, the shorter the symbol length. Therefore, the shortest length of an OFDM symbol is 1/16 of 4G, which is 4.46us, so low latency is very important for 5G systems.
  • an embodiment of the present invention proposes a data processing method that can reduce latency and implement peak clipping processing.
  • An embodiment of the present invention provides a data processing method. As shown in FIG. 1, the method may include:
  • a data processing method provided by an embodiment of the present invention may be applied to an intermediate frequency portion of a wireless communication transmitter, and is used to transmit data during transmission.
  • the embodiment of the present invention uses a data processing apparatus to indicate the equipment to which the data processing method is applied, and the specific equipment type of the data processing apparatus is not limited by the embodiment of the present invention.
  • the data processing device first needs to obtain the original data to be transmitted, that is, the original signal to be transmitted. After obtaining the original data to be transmitted, the original data to be transmitted needs to be interpolated by an interpolation multiple, The adopted data is obtained, and then the sampled data is used to generate subsequent cancellation pulses.
  • the data processing device adopts the data processing process in the peak clipping process of the original data to be transmitted on a transmission channel.
  • the data processing device performs interpolation processing on the original data to be transmitted to increase the sampling rate to form a multi-phase structure, and subsequently uses multi-phase filtering to realize the pulse cancellation.
  • the interpolation multiple depends on the design specifications.
  • the interpolation multiple may be an even multiple of 2, 4, 6, etc., and the embodiment of the present invention does not limit it.
  • the interpolation multiple is 4 times interpolation, it can be composed of two 2 ⁇ interpolation filters in series, and each 2 ⁇ interpolation filter supports bypass configuration, which can complete 4 ⁇ interpolation or 2 ⁇ interpolation Or keep functioning. In this way, the data processing device can reasonably realize the reuse of resources according to the system clock and sampling rate scheme.
  • one channel can be understood as a single carrier or a band filtering situation.
  • the data processing device After the data processing device obtains the sampled data after interpolation processing, the data processing device can perform amplitude and phase processing on the sampled data, thereby obtaining the sample point amplitude and sample point phase of the sampled data.
  • the data processing device calculates the amplitude and phase of the sampled data to obtain the amplitude and phase corresponding to each sampling point in the sampled data.
  • the amplitude and phase corresponding to each sampling point are the amplitude and phase of the sampling point corresponding to each sampling point.
  • the data processing device performs interpolation on the original data to be transmitted, and the obtained sample data is a complex signal, such as an IQ (quadrature) signal.
  • the data processing device may use the amplitude and phase unit to process the sampled data to obtain the sampling point amplitude and the sampling point phase of each sampling point.
  • the amplitude and phase unit in the data processing device may be a cordic module, which is not limited in this embodiment of the present invention.
  • the amplitude of the sampling point calculated by the data processing device is used for subsequent peak search processing, and the phase of the sampling point is used for the subsequent inverse transform to recover the peak IQ data.
  • the data processing manner adopts a multi-level iterative manner to process the amplitude and phase of the sampled data.
  • the number of iteration stages in the amplitude and phase unit can be determined according to actual design, and is not limited in the embodiments of the present invention.
  • the data processing apparatus obtains the sampling point amplitude and sampling point phase in a multi-level iterative manner, for example, iterative multi-level obtaining the real part, imaginary part, and phase of the sampling point, and according to the real part and the imaginary part The amplitude of the sampling point is obtained.
  • multi-level iteration is realized by formulas (1), (2), (3) and (4), as follows:
  • n is the iteration series
  • x represents Signal I (real part) way
  • y means signal Q (imaginary part) way
  • z means phase
  • floor means round down
  • arctan means find arc tangent, according to formulas (1) to (4), we can get x( n), y(n) and z(n).
  • s n indicates that the iterative calculation process of the next level always depends on the highest sign bit of the Q path of the previous level.
  • the number of iterations in the embodiment of the present invention may be six orders, which is not limited in this embodiment of the present invention, and the number of iterations and the initial iteration phase value in the cordic module are determined according to actual performance simulation.
  • S103 Perform peak search processing on the amplitude of the sampling point and the phase of the sampling point to obtain phase marker information and peak data of the peak sampling point.
  • the data processing device After the data processing device calculates the sampling point amplitude and sampling point phase of each sampling point, the data processing device can perform peak search processing to find the peak data in the sampling point amplitude and the phase of the sampling point phase corresponding to the peak data Logo information.
  • the data processing device performs peak search processing on the amplitude and phase of the sampling point to obtain the phase flag information and peak data of the peak sampling point (that is, S103).
  • the implementation may include: S1031-S1033, as follows :
  • S1031 Compare the amplitude of the sampling point with a preset peak cut threshold, and determine valid peak data corresponding to an effective sampling point that meets the preset peak cut threshold;
  • S1033 Mark the phase of the sampling point to obtain the phase mark information corresponding to the phase of the peak sampling point.
  • the data processing device may use the preset peak clipping threshold to compare with the sampling point amplitude, so that some effective peaks corresponding to the sampling points that exceed the preset peak clipping threshold can be selected from many sampling point amplitudes Data, and since the sampled data in the embodiment of the present invention is obtained by interpolation of the interpolation multiple, the interpolation multiple of the original sampling rate is increased, so the original sampling point corresponding to the original sampling rate may appear corresponding to When there is one peak, there may be cases where the original sampling point corresponds to multiple peaks in the effective peak data in this embodiment of the present invention, but it is only necessary to ensure that only one peak is obtained at one original sampling point.
  • the data processing device uses the preset window length for re-screening, that is, the data processing device determines the peak data with the largest peak within each preset window length from the effective peak data to obtain the peak data of the peak sampling point Among them, the preset window length corresponds to the interval between two adjacent original sampling points, so as to ensure that only one peak is obtained at one original sampling point, that is, the peak data of the peak sampling point.
  • the data processing device since the data processing device also obtains the phase of the sampling point, the data processing device can also mark the phase of the sampling point and mark all phase identification information corresponding to the phase of each sampling point. In this way, the data processing device You can get the phase marker information of the peak sampling point from it.
  • the phase flag information of the peak sampling point is used for subsequent extraction of the prototype filter coefficient.
  • the preset peak clipping threshold can be set according to the actual signal size. If the preset peak clipping threshold is set too large, the ideal peak clipping effect cannot be achieved. If the preset peak clipping threshold is set too small, too many peaks are caused. , Can not handle large peaks, therefore, the preset peak cut threshold settings need to be set according to the actual situation.
  • the phase marking method of the data processing device may use original data and interpolated data obtained by interpolation to use different marking processes.
  • the peak search window that is, the preset window length, ensures that the single-point peak is the largest within the preset window length, which can prevent the peak regeneration caused by the nearby larger peak point.
  • the preset interpolation multiple is used as the preset window length.
  • the data processing device marks the original data as C and the interpolation data as I, and uses the form of letters + numbers as the data expression method.
  • each original sampling point corresponds to a peak data.
  • the interpolation data corresponding to Cn, C0 are I00, I01, 102;
  • the interpolation data corresponding to C1 are I10, I11, 112, ..., and the interpolation data corresponding to Cn are In0, In1, 1n2.
  • the data processing device obtains a peak data for each original sampling point by presetting the peak cut threshold, then the peak sampling points will be distributed between every two adjacent original sampling points, that is, the C0 original sampling point corresponds to Peak sampling point I01, peak data is peak (peak) 0, C1 original sampling point corresponds to peak sampling point I12, peak data is peak1..., and Cn original sampling point corresponds to peak sampling point In0, peak data is peakn. Then, the data processing device will mark the starting point of each original sampling point as the starting point of the mark according to the order of the sampled data, and mark the phase of the sampling point corresponding to each original sampling point with a periodic mark symbol.
  • phase flag information of C0 is 0, the phase flag information of I00 is 1, the phase flag information of I01 is 2, the phase flag information of I02 is 3, and the phase flag information of C1 is 0, and the phase flag information of I10 is 1,
  • the phase mark information of I11 is 2, the phase mark information of I12 is 3, and so on. Therefore, it can be seen from FIG. 3 that the phase mark information corresponding to the peak sampling point is 2, 3, ..., 1.
  • the data processing device can obtain the phase of the peak sampling point when the phase marking information and peak data of the peak sampling point and the phase of the sampling point are obtained, so that the phase and information of the peak sampling point can be obtained according to the phase and phase marking information of the peak sampling point.
  • the data processing device performs inverse transform and polyphase filtering on the peak data according to the sampling point phase and phase flag information, and the implementation of obtaining the first pulse data corresponding to one channel (that is, S104) may include: S1041-S1044, as follows:
  • S1044 Obtain the first pulse data corresponding to one channel according to the peak sampling point data and the extraction coefficient.
  • the data processing device since the data processing device performs interpolation processing on the original data to be transmitted to obtain a multiphase data structure, that is, sampled data, then the data processing device may perform filtering processing using polyphase filtering to obtain the first A pulse of data.
  • the data processing device obtains amplitude (ie peak data) and phase in advance, the data processing device needs to inversely transform the amplitude and phase to obtain the peak sampling point data, and then perform more data on the peak sampling point data. Phase filtering to obtain the first pulse data.
  • the prototype filter coefficient and the prototype filter coefficient length adopted by the data processing device for the polyphase filtering of one channel are preset.
  • the setting of the prototype filter coefficient needs to be close to the combined carrier signal spectrum. That is, the prototype filter coefficient setting must be consistent with the data sampling rate after interpolation, so that the data and coefficients can be adapted when the multiphase decimation coefficients.
  • the polyphase filtering unit of the data processing device stores the prototype filter coefficients of one channel, and the length of the storage depends on the length of the prototype filter coefficients.
  • the polyphase filter unit of the data processing device can obtain the prototype filter coefficients and the prototype filter coefficient length of the polyphase filter, and extract the original filter coefficients according to the phase mark information and the prototype filter coefficient length to obtain the corresponding value of the peak sampling point Extract coefficients.
  • the extraction multiple coincides with the interpolation multiple at the time of interpolation.
  • inverse transformation is performed to obtain peak sampling point data.
  • the first pulse data corresponding to one channel is obtained.
  • the data processing device takes the length of the prototype filter coefficient and uses the start phase marker information of the peak sampling point as the coefficient starting point, and extracts the original filter coefficient according to the decimation multiples to obtain the corresponding peak sampling point. Coefficient of extraction. In this way, after the data processing device performs inverse conversion on the phase and peak data of the sampling point to obtain peak sampling point data, the first pulse data corresponding to one channel can be obtained based on the peak sampling point data and the extraction coefficient.
  • the data processing device calculates the first pulse data corresponding to one channel after multiplying the peak sampling point data and the extraction coefficient.
  • the pulses generated by peak sampling points of different phases in the peak sampling point data need to be aligned and added to complete the peak sampling point off-peak addition to form a cancellation pulse
  • the signal is the first pulse data.
  • the peak sampling point data includes multiple peak sampling points.
  • the pulses generated by the peak sampling points are obtained by multiplying the peak sampling points by the decimation coefficients.
  • the peak sampling points of different phases obtain their corresponding pulses, and the peaks of different phases are sampled. After the pulse stagger peaks obtained at the points are added, the first pulse data is obtained.
  • n is the length of the prototype filter
  • the value can be 1-114
  • h (4*n+a) represents the extraction coefficient, where a is the starting phase marker information of the phase marker information of the peak sampling point.
  • the data processing device multiplies the peak sampling point data and the extraction coefficient correspondingly to obtain the first pulse data.
  • the pulses obtained from the peak sampling points of different phases need to be aligned and added to the pulses obtained from other peak sampling points to obtain the first pulse data, that is, the sampling points of the phase 0, 1, 2, 3 of the peak sampling points are respectively extracted After the coefficients are multiplied, they are aligned and added to the result of multiplying the peak sampling points with phases 3, 2, 1, 0 and the decimation coefficients, and finally the 114 peak sampling points are added with staggered peaks to form a cancellation pulse signal, that is, the first One pulse of data.
  • S105 Use the first pulse data to perform delayed peak cut processing on the original data to be transmitted to obtain the peak-cut emission data.
  • the data processing device may use the first pulse data to perform peak-delay clipping on the original data to be transmitted After processing, the emission data after peak clipping is obtained.
  • the data processing device aligns the first pulse data with the original data to be transmitted in the time domain, and then performs a subtraction operation to implement delayed peak clipping processing to obtain peak-cut emission data.
  • the offset pulse link that is, the link of the first pulse data has a large delay
  • the original data to be transmitted needs to be After the delay, the alignment with the length of the first pulse data offset pulse link is performed to complete the subtraction process of the original data to be transmitted and the first pulse data, to achieve peak clipping, and the emission data after peak clipping is obtained.
  • the raw data input data to be transmitted on a transmission channel is obtained, and the raw data to be transmitted is interpolated through an hbf (half-band interpolation filter)
  • hbf half-band interpolation filter
  • To get sampled data perform amplitude and phase processing on the sampled data through cordic (amplitude phase unit) to obtain the sampled point amplitude and sampled point phase of the sampled data; through peak-search (peak search) on the sampled point amplitude and sampled point phase Peak search processing to obtain the phase mark information and peak data of the peak sampling point; through multi_phase_filter&rev_cordic (multiphase filtering & inverse transform) according to the sampling point phase and phase mark information, the peak data is inversely transformed and polyphase filtered to obtain a channel corresponding
  • the first pulse data of the first pulse data the first pulse data is subjected to delay peak clipping processing on the original data to be transmitted to obtain emission data cfr_out after peak clipping.
  • the data processing device can sample the data to be transmitted by N-fold interpolation processing, and then generate pulse data from the sampled data, the amplitude and After the phase processing, the peak search processing is performed on the amplitude and phase of the increased sampling points to meet the performance improvement under the large bandwidth, and after the peak search processing is completed, the peak data is inversely transformed and polyphase filtered to obtain
  • the pulse data and the original data to be transmitted are processed by delay peak clipping, which can reduce the peak clipping delay.
  • the method further includes: S106, as follows:
  • the data processing device uses the first pulse data to perform delayed peak clipping processing on the original data to be transmitted, and after obtaining the peak-cut transmission data, the data processing device can transmit the peak-cut transmission data.
  • an embodiment of the present invention also provides a data processing method, as shown in FIG. 5, the method may further include :
  • S203 Perform peak search processing on the amplitude of the sampling point and the phase of the sampling point to obtain the phase mark information and peak data of the peak sampling point.
  • the prototype filter coefficients of each carrier need to be superimposed to form a single multi-carrier prototype filter coefficient.
  • the length of the prototype filter coefficient depends on the signal when the indicators of Error Vector Magnitude (EVM), Adjacent Channel Power Ratio (ACPR) and Complementary Cumulative Distribution Function (CCDF) are met.
  • EVM Error Vector Magnitude
  • ACPR Adjacent Channel Power Ratio
  • CCDF Complementary Cumulative Distribution Function
  • S207 Send the first transmission data on one channel, and send the second transmission data on the other channel respectively.
  • the data processing device can generate its own corresponding pulse data for each of the at least two channels, and use its own pulse data for its original to be transmitted The data is clipped.
  • the data processing device may simultaneously generate respective pulse data for at least two channels, and then the respective pulse data performs peak clipping processing on the respective original data to be transmitted.
  • the data processing device may also acquire second pulse data corresponding to channels other than one channel of at least two channels according to a preset clock data multiplexing ratio.
  • the data processing device uses the first pulse data to perform delayed peak clipping on the original data to be transmitted to obtain the first transmission data after peak clipping, and uses the second pulse data to perform delayed peak clipping on the other original data to be transmitted to obtain peak clipping
  • the other original data to be transmitted are the data to be transmitted corresponding to other channels.
  • the data processing device sends the first transmission data on one channel, and sends the second transmission data on the other channels, respectively.
  • the second pulse data in the embodiment of the present invention is a collective name, and does not mean that it is a pulse data, each channel corresponds to a pulse data.
  • the data processing device uses time-division multiplexing to perform polyphase filtering of at least two channels to generate different pulse data.
  • a half-band interpolation filter may be used for interpolation processing, assuming that the data processing device multiplexes 2 channels in a time-sharing manner, such as 2 frequency bands (ch0 (channel 0) and ch1 (channel 1))
  • the data processing device completes the 2-channel interpolation filtering through the time-division multiplexing through the half-band filter module hbf (that is, the interpolation unit) to obtain sample IQ data.
  • Amplitude and phase unit namely cordic, is used to obtain the amplitude and phase of the sampled IQ data input in a single frequency band.
  • cordic_u0 (amplitude phase unit 0) is used to calculate the amplitude and phase of the original data to be transmitted corresponding to ch0
  • cordic_u1 (amplitude phase Unit 1) Calculate the amplitude and phase of the original data to be transmitted corresponding to ch1.
  • pk_sch complete the peak search of a single channel and mark the phase to obtain the phase mark information.
  • pk_sch_u0 peak search unit 0
  • Use pk_sch_u1 (peak search unit 1) to search the peak corresponding to the data of ch1, and mark the phase to obtain the phase mark information.
  • time-division multiplexing completes 2-channel filtering to obtain first pulse data and second pulse data.
  • the original data delay module delay_unit completes the delay of two channels at the same time. The size of the delay depends on the offset pulse link delay.
  • the first pulse data and the second pulse data are used to correspond to the delayed two channels.
  • the data is subtracted and subtracted to obtain the first transmission data cfr_out0 and the second transmission data cfr_out1.
  • typical processing modules such as half-band interpolation filters, cordic and other modules are designed according to IP (Intellectual Property, intellectual property) to facilitate maintenance and upgrade of later versions.
  • IP Intelligent Property, intellectual property
  • the half-band interpolation filter hbf can reduce half of the multiply-add unit resources. At the same time, when the clock data is relatively high, resource reuse can be achieved. If the clock data multiplexing ratio is doubled, the half-band filter implementation structure is shown in Figure 7.
  • the coefficient coefficient length of the half-band filter is 27, and the middle point has 14 symmetric effective coefficients, and half of the coefficients are 0, so there are only 7 effective coefficients.
  • Each delay chain in the ch0 and ch1 channels in Figure 7 is a sample point delay, that is, the holding time of 2 clocks (ie 2D), first add the delay chain data symmetrically (14 delay chain changes 7, multiplying with 7 coefficients), and then multiplying the data of each channel by the coefficients coef0-coef6 (coefficient 0 ⁇ coefficient 6) to complete the sum of all the road data.
  • each channel can complete 2 channels of filtering at the time of the sampling point.
  • mux multiplexer, data selector
  • the hbf filter supports the bypass function.
  • the N series of 2 ⁇ interpolation filters connected in series it can form less than 2N ⁇ interpolation filters.
  • the amplitude and phase unit cordic calculates the signal amplitude and phase of the sampling point, specifically using multi-level iterative calculation, the specific process of which has been described in detail in the previous embodiments and will not be repeated here.
  • the peak search unit pk_sch cordic outputs the amplitude str of the sampling point, and the amplitude of the marked original data and the interpolated data.
  • the peak value of the original data and the interpolated data are compared in series, and the maximum value is the peak data, phase and phase flag information. Then, the peak data is compared with the configured preset peak cut threshold, and if it is greater than the preset peak cut threshold, the marked peak data and peak phase flag information are output, otherwise discarded. Or, first compare the peak value of the original data and the interpolated data with the preset peak clipping threshold to find the effective peak value, and then output the maximum value of the two original data intervals (preset window length) for the peak value of the original data and the interpolated data.
  • the peak value is the peak data of the peak sampling point, and the output peak data minus the preset peak cut threshold, enter the anti-cordic module to achieve similar cordic module processing, and finally output the peak gain IQ data, that is, the peak sampling point data.
  • the multi-phase filter unit multi_phase_filter the realization process is shown in Figure 8.
  • the prototype filter coefficient ram random access memory, random access memory
  • the extraction coefficient address of ch1_read_ctrl channel 1 address variable
  • the extraction coefficient ch0_coef (extraction coefficient 0) corresponding to ch0 and the extraction coefficient ch1_coef (extraction coefficient 1) corresponding to ch1 are extracted by the coef_mem0 (coefficient variable) reading address according to the extraction multiple coefficient, and the extraction coefficient ch1_coef (extraction coefficient 1) corresponding to ch1 is longer than the coefficient corresponding to ch0_read_ctrl D output.
  • timing alignment is performed for time-division multiplexing, and a coefficient ram is shared.
  • the single-channel prototype filter coefficients are stored in the polyphase filter unit.
  • a single channel prototype filter coefficient can be reused, or a channel can use a prototype filter coefficient
  • the embodiment of the present invention is not limited.
  • the embodiments of the present invention can be applied to the case of high clock, low sampling rate, resource multiplexing, and the polyphase filter unit can process multiple peak data at the same time.
  • the maximum number of peaks processed by the polyphase filter unit depends on The number of memory (storage unit) and the preset clock data multiplexing ratio.
  • the prototype filter coefficients are symmetrical about the center point, so it is sufficient to read half of the coefficients.
  • the peak phase is 0, the start address is read 0, and a coefficient is read every 2 addresses. Once read the address is 0, 2, 4...14, 16.
  • the decimation coefficients are conjugated until the entire polyphase filtering is completed.
  • the pulse data of each channel can be obtained, and the respective pulse data can be used to clip the respective original data to be transmitted.
  • the data processing device Since the data processing device generates pulse data in the process of generating pulse data for each channel, it can sample the data to be transmitted by N times interpolation, and then generate pulse data from the sampled data, and the pulse data generation process passes After the amplitude and phase processing of the sampled data is performed, the peak search processing is performed on the amplitude and phase of the increased sampling points to meet the performance improvement of processing large bandwidths, and after the peak search processing is completed, the peak data is inversely transformed And after the multi-phase filtering, the obtained pulse data adopts the multi-channel pulse data and the original data to be transmitted after delay peak clipping processing, thereby reducing the peak clipping delay.
  • An embodiment of the present invention provides a data processing apparatus 1.
  • the data processing apparatus may include:
  • the interpolation filtering unit 10 is configured to obtain the original data to be transmitted on the transmission channel, and perform interpolation processing on the original data to be transmitted to obtain sampled data;
  • the amplitude and phase unit 11 is set to perform amplitude and phase processing on the sampled data to obtain the sample point amplitude and the sampled point phase of the sampled data;
  • the peak search unit 12 is set to perform peak search processing on the amplitude and phase of the sampling point to obtain phase mark information and peak data of the peak sampling point;
  • the polyphase filtering unit 13 is configured to perform inverse transform and polyphase filtering on the peak data according to the phase of the sampling point and the phase flag information to obtain first pulse data corresponding to one channel;
  • the peak clipping unit 14 is configured to use the first pulse data to perform delayed peak clipping processing on the original data to be transmitted to obtain peak-emitted emission data.
  • the amplitude and phase unit 11 is configured to calculate the amplitude and phase of the sampled data to obtain the amplitude and phase corresponding to each sampling point in the sampled data.
  • the peak search unit 12 is configured to compare the amplitude of the sampling point with a preset peak clipping threshold to determine the corresponding effective sampling point that meets the preset peak clipping threshold. Effective peak data; determining the peak data with the largest peak within each preset window length from the effective peak data to obtain the peak data of the peak sampling point; marking the phase of the sampling point to obtain the peak sampling Phase mark information corresponding to the phase of the point.
  • the polyphase filtering unit 13 is configured to acquire the prototype filter coefficient and the prototype filter coefficient length of the polyphase filter; according to the phase flag information and the prototype filter Coefficient length, decimating the original filter coefficient to obtain the decimation coefficient corresponding to the peak sampling point, the decimation multiple is consistent with the interpolation multiple at the time of interpolation; according to the phase of the sampling point and the peak data, inverse Transform to obtain peak sampling point data; according to the peak sampling point data and the extraction coefficient, obtain the first pulse data corresponding to the one channel.
  • the polyphase filtering unit 13 is further configured to obtain the first pulse data corresponding to the one channel after multiplying the peak sampling point data and the decimation coefficient.
  • the peak clipping unit 14 is configured to perform time-domain alignment on the first pulse data and the original data to be transmitted, and then perform a subtraction operation to implement delayed peak clipping, Obtain the emission data after the peak clipping.
  • the apparatus 1 further includes: a first sending unit 15 (not shown in FIG. 9).
  • the polyphase filtering unit 13 is further configured to acquire other channels than the one channel of the at least two channels according to a preset clock data multiplexing ratio when the transmission channel is at least two channels Corresponding second pulse data;
  • the peak clipping unit 14 is further configured to use the first pulse data to perform delayed peak clipping on the original data to be transmitted, to obtain the first emission data after peak clipping, and to use the second pulse data pair Delay-peak clipping processing is performed on the other original data to be transmitted to obtain the second transmission data after the peak clipping, wherein the other original data to be transmitted are the data to be transmitted corresponding to the other channels;
  • the first sending unit 15 is configured to send the first transmission data on the one channel, and separately send the second transmission data on the other channels.
  • the apparatus 1 further includes: a second sending unit 16 (not shown in FIG. 9).
  • the second sending unit 16 is configured to use the first pulse data to perform delayed peak cut processing on the original data to be transmitted to obtain the peak-cut transmission data, and then send the cut data on the one channel Emission data after the peak.
  • an embodiment of the present invention further provides a data processing apparatus, including:
  • the memory 16 is set to store executable data processing instructions
  • the processor 17 is configured to implement the data processing method described in the foregoing embodiment when executing the executable data processing instructions stored in the memory 16.
  • the processor may be an integrated circuit chip with signal processing capabilities, such as a general-purpose processor, a digital signal processor (DSP), or other programmable logic devices, discrete gates or transistor logic devices, discrete Hardware components, etc., where the general-purpose processor may be a microprocessor or any conventional processor, etc.
  • the memory may be volatile memory or non-volatile memory, and may also include both volatile and non-volatile memory.
  • the non-volatile memory can be read-only memory (Read Only Memory, ROM), programmable read-only memory (Programmable Read-Only Memory, PROM), erasable programmable read-only memory (Erasable Programmable Read-Only Memory , EPROM), flash memory (Flash) Memory, etc.
  • the volatile memory may be a random access memory (Random Access Memory, RAM), which is used as an external cache.
  • RAM Random Access Memory
  • SRAM Static Random Access Memory
  • SRAM Synchronous Static Random Access Memory
  • SSRAM Synchronous Static Random Access Memory
  • the memory 440 described in the embodiments of the present invention is intended to include these and any other suitable types of memory.
  • An embodiment of the present invention provides a computer-readable storage medium, which stores executable data processing instructions, and is used to cause a processor to execute the data processing method described in the foregoing embodiments.
  • the storage medium may be a memory such as FRAM, ROM, PROM, EPROM, EEPROM, flash memory, magnetic surface memory, optical disk, or CD-ROM; it may also be various devices including one or any combination of the above memories .
  • executable instructions may take the form of programs, software, software modules, scripts, or codes, written in any form of programming language (including compiled or interpreted languages, or declarative or procedural languages), and their It can be deployed in any form, including as a standalone program or as a module, component, subroutine, or other unit suitable for use in a computing environment.
  • executable instructions may, but do not necessarily correspond to files in the file system, may be stored in a part of a file that stores other programs or data, for example, stored in a Hypertext Markup Language (HTML, HyperText MarkupLanguage) document
  • HTML Hypertext Markup Language
  • HTML HyperText MarkupLanguage
  • executable instructions may be deployed to be executed on one computing device, or on multiple computing devices located in one location, or on multiple computing devices distributed in multiple locations and interconnected by a communication network To execute.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Transmitters (AREA)

Abstract

本公开提供了一种数据处理方法及装置、计算机可读存储介质,该方法包括:获取传输通道上的待发射原始数据,对待发射原始数据进行内插处理,得到采样数据;对采样数据进行幅度和相位处理,得到采样数据的采样点幅度和采样点相位;对采样点幅度和采样点相位进行搜峰处理,得到峰值采样点的相位标志信息和峰值数据;根据采样点相位和相位标志信息,对峰值数据进行反变换和多相滤波得到一个通道对应的第一脉冲数据;采用第一脉冲数据对待发射原始数据进行延时削峰处理,得到削峰后的发射数据。

Description

数据处理方法及装置、计算机可读存储介质
本申请要求在2018年12月18日提交中国专利局、申请号为201811549792.2的中国专利申请的优先权,以上申请的全部内容通过引用结合在本申请中。
技术领域
本公开涉及无线通信领域中的数据传输技术,例如涉及一种数据处理方法及装置、计算机可读存储介质。
背景技术
在无线通信领域,第四代移动通信技术(4-th generation,4G)和第五代移动通信技术(5-th generation,5G)的通信系统采用OFDM(Orthogonal Frequency Division Multiple,正交频分复用)调制技术保证子载波的正交性,具有很高的频谱利用率、很强的抗衰落和抗符号干扰能力,但同时带来了较高的峰均比(Peak-to-Average Power Ratio,PAPR),这会给发射端的功率放大器(power amplifier,PA)带来压力,降低了PA的工作效率。在5G大带宽下应用时,若峰均比过高,PA工作在饱和区则会破坏子载波的正交性,影响通信性能。
目前,采用正常脉冲抵消削峰方式实现削峰,通过生成抵消脉冲频谱和原始信号频谱相抵消,来降低PAPR,其中,抵消脉冲频谱与原始信号频谱保持一致。
然而,由于抵消脉冲存在链路延时,在采用正常脉冲抵消削峰方式实现削峰的过程中,会产生削峰时延的问题,并且会影响大带宽的5G系统中的通信性能。
发明内容
本发明实施例提供了一种数据处理方法及装置、计算机可读存储介质,能够减少削峰时延,提高大带宽下的通信性能。
本发明实施例提供了一种数据处理方法,包括:
获取传输通道上的待发射原始数据,对所述待发射原始数据进行内插处理,得到采样数据;
对所述采样数据进行幅度和相位处理,得到所述采样数据的采样点幅度和采样点相位;
对所述采样点幅度和所述采样点相位进行搜峰处理,得到峰值采样点的相位标志信息和峰值数据;
根据所述采样点相位和所述相位标志信息,对所述峰值数据进行反变换和多相滤波,得到一个通道对应的第一脉冲数据;
采用所述第一脉冲数据对所述待发射原始数据进行延时削峰处理,得到削峰后的发射数据。
本发明实施例提供了一种数据处理装置,包括:
插值滤波单元,设置为获取传输通道上的待发射原始数据,对所述待发射原始数据进行内插处理,得到采样数据;
幅度相位单元,设置为对所述采样数据进行幅度和相位处理,得到所述采样数据的采样点幅度和采样点相位;
搜峰单元,设置为对所述采样点幅度和所述采样点相位进行搜峰处理,得到峰值采样点的相位标志信息和峰值数据;
多相滤波单元,设置为根据所述采样点相位和所述相位标志信息,对所述峰值数据进行反变换和多相滤波,得到一个通道对应的第一脉冲数据;
削峰单元,设置为采用所述第一脉冲数据对所述待发射原始数据进行延时削峰处理,得到削峰后的发射数据。
本发明实施例还提供了一种数据处理装置,包括:
存储器,设置为存储可执行数据处理指令;
处理器,设置为执行所述存储器中存储的可执行数据处理指令时,实现上述的数据处理方法。
本发明实施例提供了一种计算机可读存储介质,存储有可执行数据处理指令,用于引起处理器执行时,实现上述的数据处理方法。
本发明实施例提供了一种数据处理方法及装置、计算机可读存储介质,由于数据处理装置可以将待发射数据先进行内插处理采样后,再从采样数据中进行脉冲数据的生成,而脉冲数据的生成过程中通过采样数据先进行了幅度和相位处理后,再针对已经增多的采样点的幅度和相位进行搜峰处理,满足处理大带宽下性能的提升,并且通过搜峰处理完后,对峰值数据进行反变换以及多相滤波后,得到的脉冲数据,采用脉冲数据与待发射原始数据是经过延时削峰处理的,从而可以减少削峰延时。
附图说明
图1为本发明实施例提供的一种数据处理方法的流程图一;
图2为本发明实施例提供的示例性的cordic(坐标旋转数字计算)求幅度相位的迭代数据流图;
图3为本发明实施例提供的示例性的峰值和相位分布图;
图4为本发明实施例提供的示例性的数据处理方法的实现框图;
图5为本发明实施例提供的一种数据处理方法的流程图二;
图6为本发明实施例提供的示例性的一种数据处理装置的硬件框图;
图7为本发明实施例提供的示例性的半带滤波实现流程图;
图8为本发明实施例提供的示例性的多通道多相滤波的实现流程图;
图9为本发明实施例提供的一种数据处理装置的结构图一;
图10为本发明实施例提供的一种数据处理装置的结构图二。
具体实施方式
下面将结合附图对本公开作详细描述,所描述的实施例不应视为对本公开的限制,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例,都属于本公开保护的范围。
除非另有定义,本发明实施例所使用的所有的技术和科学术语与属于本公开的技术领域的技术人员通常理解的含义相同。本发明实施例中所使用的术语只是为了描述本发明实施例的目的,不是旨在限制本公开。
在本发明实施例中,由于即将到来的5G系统中,对超可靠低时延(Ultra-Reliable Low Latency Communication,URLLC)提出更高要求。在5G协议中设定1个无线帧:10ms,1个子帧:1ms,每个子帧最多有16个时隙,每个时隙固定14个符号。其中,OFDM定义了5种子载波间隔,子载波间隔越大,符号长度越短。所以1个OFDM符号最短长度为4G的1/16即4.46us,那么低时延对于5G系统来说至关重要。
基于上述需求和趋势,本发明实施例提出了一种可以降低时延并且实现削峰处理的数据处理方法。
本发明实施例提供了一种数据处理方法,如图1所示,该方法可以包括:
S101、获取传输通道上的待发射原始数据,对待发射原始数据进行内插处 理,得到采样数据。
本发明实施例提供的一种数据处理方法可以应用在无线通信发射机的中频部分,用于进行发射数据的发射过程中。本发明实施例采用数据处理装置来表明该数据处理方法应用的设备,具体的数据处理装置的设备类型,本发明实施例不作限制。
在本发明实施例中,数据处理装置先要获取待发射原始数据,即待发射原始信号的,在获取到待发射原始数据后,需要对该待发射原始数据进行内插倍数的内插处理,得到采用数据,而后采用该采样数据进行后续的抵消脉冲的生成的。
需要说明的是,在本发明实施例中,数据处理装置采用的是对一个传输通道上的待发射原始数据进行削峰处理中的数据处理过程。
在本发明实施例中,数据处理装置对待发射原始数据进行内插倍数的内插处理,提升了采样率,以组成多相结构,后续采用多相滤波实现抵消脉冲的实现。
在本公开的一些实施例中,内插倍数取决于设计规格。
示例性的,当采用2倍插值滤波器实现时,内插倍数可以为2、4、6等偶数倍,本发明实施例不作限制。此时,若内插倍数为4倍插值时,可由2个2倍插值滤波器串行组成,且每个2倍插值滤波器都支持可旁路配置,即可完成4倍插值或2倍插值或保持功能。这样,数据处理装置就可以根据系统时钟和采样率方案,可以合理的实现资源的复用。
需要说明的是,在本发明实施例中,一个通道可以理解为单载波,或者一个频段滤波的情况。
S102、对采样数据进行幅度和相位处理,得到采样数据的采样点幅度和采 样点相位。
数据处理装置在获取到内插处理后的采样数据之后,该数据处理装置可以将采样数据进行幅度和相位处理,从而得到了采样数据的采样点幅度和采样点相位。
在本公开的一些实施例中,数据处理装置计算采样数据的幅度和相位,得到采样数据中的每个采样点对应的幅度和相位。这里每个采样点对应的幅度和相位即为每个采样点对应的采样点幅度和采样点相位。
需要说明的是,数据处理装置在对待发射原始数据进行内插,得到的采样数据是复数信号,例如IQ(正交)信号。
在本公开的一些实施例中,数据处理装置可以采用幅度相位单元对采样数据进行处理,得到每个采样点的采样点幅度和采样点相位。
示例性的,数据处理装置中的幅度相位单元可以为cordic模块,本发明实施例不作限制。
需要说明的是,数据处理装置计算得到的采样点幅度用来进行后面的搜峰处理,而采样点相位用来进行后面反变换恢复峰值IQ数据的过程。
在本公开的一些实施例中,数据处理方式采用多级迭代的方式实现对采样数据的幅度和相位的处理。其中,幅度相位单元中的迭代级数可根据实际设计决定,本发明实施例不作限制。
在本发明实施例中,数据处理装置采用的多级迭代的方式得到采样点幅度和采样点相位,例如,迭代多级得到采样点的实部,虚部以及相位,并根据实部和虚部得到采样点的幅度,其中,多级迭代的实现由公式(1)、(2)、(3)和(4)实现,具体如下:
x(n+1)=x(n)-s n*floor(y(n)/2 n-1),n=1,2,......      (1)
y(n+1)=y(n)+s n*floor(y(n)/2 n-1),n=1,2,......        (2)
z(n+1)=z(n)-s n*arctan(1/2 n-1),n=1,2,......          (3)
其中,
Figure PCTCN2019126425-appb-000001
这里,如图2所示,迭代的初始值为{x(0),y(0),z(0)}={|I|,|Q|,0},n为迭代级数,x表示信号I(实部)路,y表示信号Q(虚部)路,z表示相位,floor表示向下取整,arctan表示求反正切值,根据公式(1)至(4),可以得到x(n),y(n)和z(n)。s n表示迭代的下一级计算过程总是取决与上一级Q路最高符号位。
示例性的,本发明实施例中迭代级数可以为6阶,对此本发明实施例不作限制,并且cordic模块中的迭代级数及初始迭代相位值根据实际性能仿真而定。
S103、对采样点幅度和采样点相位进行搜峰处理,得到峰值采样点的相位标志信息和峰值数据。
数据处理装置在计算得到了每个采样点的采样点幅度和采样点相位之后,该数据处理装置可以进行搜峰处理,找到采样点幅度中的峰值数据,以及峰值数据对应的采样点相位的相位标志信息。
在本公开的一些实施例中,数据处理装置对采样点幅度和采样点相位进行搜峰处理,得到峰值采样点的相位标志信息和峰值数据(即S103)的实现可以包括:S1031-S1033,如下:
S1031、将采样点幅度与预设削峰门限进行对比,确定出满足所述预设削峰门限的有效采样点对应的有效峰值数据;
S1032、从有效峰值数据中确定出每个预设窗口长度内峰值最大的峰值数据,得到峰值采样点的峰值数据;
S1033、对采样点相位进行标记,获取峰值采样点的相位对应的相位标志信 息。
在本发明实施例中,数据处理装置可以采用预设削峰门限与采样点幅度进行对比,这样就可以从很多的采样点幅度中筛选出一些超过预设削峰门限的采样点对应的有效峰值数据,而由于本发明实施例中的采样数据是经过内插倍数的内插得到的,因此,是提高了原采样率的内插倍数的,于是可能会出现本来原采样率的原始采样点对应一个峰值的时候,本发明实施例中的有效峰值数据中可能存在原始采样点对应多个峰值的情况,但是只需保证在一个原始采样点只得到一个峰值就可以了。因此,针对有效峰值数据,数据处理装置采用预设窗口长度进行再次筛选,即数据处理装置从有效峰值数据中确定出每个预设窗口长度内峰值最大的峰值数据,得到峰值采样点的峰值数据,其中,预设窗口长度对应相邻两个原始采样点之间的间隔,这样可以保证在一个原始采样点只得到一个峰值,即峰值采样点的峰值数据。在此过程中,由于数据处理装置还得到了采样点相位,因此,该数据处理装置还可以针对采样点相位进行标记,标记出每个采样点相位对应的全部相位标志信息,这样,数据处理装置就可以从中获取到峰值采样点的相位标志信息了。
在本发明实施例中,峰值采样点的相位标志信息用于后续进行原型滤波器系数的抽取时使用。
在本发明实施例中,预设削峰门限的大小可以根据实际信号大小设置,设置过大预设削峰门限达不到理想的削峰效果,预设削峰门限设置过小导致峰值过多,无法处理较大峰值,因此,预设削峰门限的设置需要按照实际情况再进行设定。
需要说明的,在本发明实施例中,数据处理装置的相位标记方式可以采用原始数据和内插得到的插值数据采用不同的标记处理。
需要说明的是,在本发明实施例中,实际搜峰过程中,如果设置一个样点搜索,有时会导致较多峰值,而且附近大的峰值无法及时处理的情况,所以可以适当增加搜峰长度搜峰窗口,即预设窗口长度,保证在预设窗口长度内单点峰值最大,如此可以防止附近较大峰值点带来的峰值再生。
在本发明实施例中,采用预设内插倍数作为预设窗口长度。
示例性的,如图3所示,数据处理装置将原始数据标记为C,插值数据标记为I,并采用字母+数字的形式作为数据的表达方式。这里,每个原始采样点对应一个峰值数据,如图3所示的,以4倍内插处理为例,一个原始采样点变为4个采样点,这样,原始采样点为C0,C1,……,Cn,C0对应的插值数据为I00,I01,102;C1对应的插值数据为I10,I11,112,……,以及,Cn对应的插值数据为In0,In1,1n2。假设,数据处理装置通过预设削峰门限,得到每个原始采样点都会对应一个峰值数据,那么,峰值采样点就会分布在每相邻两个原始采样点之间,即C0原始采样点对应峰值采样点I01,峰值数据为peak(峰值)0,C1原始采样点对应峰值采样点I12,峰值数据为peak1……,以及Cn原始采样点对应峰值采样点In0,峰值数据为peakn。那么数据处理装置将按照采样数据的顺序,以每个原始采样点的起点为标记起点,采用周期性标记符号标记每个原始采样点对应的采样点相位。例如,针对C0对应的C0,I00,I01,102,采用0,1,2,3(周期性标记符号,标记符号的个数与内插倍数一致)对应标记。即C0的相位标志信息为0,I00的相位标志信息为1,I01的相位标志信息为2,I02的相位标志信息为3;而C1的相位标志信息为0,I10的相位标志信息为1,I11的相位标志信息为2,I12的相位标志信息为3,依次类推。于是,从图3中可以看出,峰值采样点对应的相位标志信息为2,3,……,1。
S104、根据采样点相位和相位标志信息,对峰值数据进行反变换和多相滤 波,得到一个通道对应的第一脉冲数据。
数据处理装置在得到了峰值采样点的相位标志信息和峰值数据,以及采样点相位的时候,就可以获取到峰值采样点的相位,这样,就可以根据峰值采样点的相位和相位标志信息,实现对峰值数据的反变换和多相滤波,从而得到抵消脉冲,即一个通道对应的第一脉冲数据了。
在本公开的一些实施例中,数据处理装置根据采样点相位和相位标志信息,对峰值数据进行反变换和多相滤波,得到一个通道对应的第一脉冲数据(即S104)的实现可以包括:S1041-S1044,如下:
S1041、获取多相滤波的原型滤波器系数和原型滤波器系数长度;
S1042、根据相位标志信息和原型滤波器系数长度,对原始滤波器系数进行抽取,得到峰值采样点对应的抽取系数,抽取倍数与内插时的内插倍数一致;
S1043、根据采样点相位和峰值数据,进行反变换,得到峰值采样点数据;
S1044、根据峰值采样点数据和抽取系数,得到一个通道对应的第一脉冲数据。
在本发明实施例中,数据处理装置由于对待发射原始数据进行了内插处理,得到了多相数据结构,即采样数据,那么该数据处理装置就可以采用多相滤波的方式进行滤波处理得到第一脉冲数据了。但是,由于数据处理装置在前面得到的都是幅度(即峰值数据)和相位,因此,数据处理装置需要对幅度和相位做反变换得到峰值采样点数据后,再对该峰值采样点数据进行多相滤波,从而得到第一脉冲数据。
在本发明实施例中,数据处理装置针对一个通道的多相滤波采用的原型滤波器系数和原型滤波器系数长度是预设好的。
需要说明的是,在本发明实施例中,在降低信号峰均比即进行削峰的时候, 为了减少待发射原始数据的频谱失真,原型滤波器系数的设置需要接近合路载波信号频谱。即原型滤波器系数设置必须跟内插后数据采样率保持一致,这样多相抽取系数时才能使数据与系数适配。
在本发明实施例中,数据处理装置的多相滤波单元是存储一个通道的原型滤波系数的,存储的长度取决于原型滤波器系数长度的。数据处理装置的多相滤波单元可以获取多相滤波的原型滤波器系数和原型滤波器系数长度,根据相位标志信息和原型滤波器系数长度,对原始滤波器系数进行抽取,得到峰值采样点对应的抽取系数。这里,抽取倍数与内插时的内插倍数一致。然后,再根据采样点相位和峰值数据,进行反变换,得到峰值采样点数据。最后,根据峰值采样点数据和抽取系数,得到一个通道对应的第一脉冲数据。
在本发明实施例中,数据处理装置是将原型滤波器系数长度,以峰值采样点的起始相位标志信息为系数起始点,按照抽取倍数抽取对原始滤波器系数进行抽取,得到峰值采样点对应的抽取系数。这样,在数据处理装置根据采样点相位和峰值数据,进行反变换,得到峰值采样点数据之后,就可以根据峰值采样点数据和抽取系数,得到一个通道对应的第一脉冲数据了。
这里,数据处理装置将峰值采样点数据和抽取系数乘积运算后,得到一个通道对应的第一脉冲数据。
需要说明的是,在本发明实施例中,对于峰值采样点数据中不同相位的峰值采样点生成的脉冲,需要将不同相位的脉冲对齐相加,完成峰值采样点错峰相加,形成抵消脉冲信号,即第一脉冲数据。其中,峰值采样点数据包括多个峰值采样点,峰值采样点生成的脉冲为给峰值采样点与抽取系数相乘得到的,不同相位的峰值采样点得到各自对应的脉冲,将不同相位的峰值采样点得到的脉冲错峰相加后,得到第一脉冲数据。
示例性的,以4倍插值下多相滤波过程为例。内插倍数=抽取倍数=4,假设原型滤波器系数长度457,系数index(索引)为0-456,且两边系数关于中间点共轭对称。那么峰值采样点的起始相位标志信息为2时,按照4倍从2开始抽取,得到抽取系数为2,6,10,...,450,454,一共114个系数。若峰值采样点的起始相位标识信息为0,则抽取系数为0,4,8,...,452,456共114个系数,也就是说,单个峰值抵消脉冲长度为原型滤波器系数的1/4。这时,假设峰值采样点的幅值(峰值数据)为Sig_abs,预设削峰门限为Thr,原型滤波系数为h(n),那么,第一脉冲数据为公式(5)所示,如下:
Cp(n)=(Sig_abs-Thr)*h(4*n+a)     (5)
其中,n为原型滤波器的长度,取值可以为1-114,h(4*n+a)表示抽取系数,其中,a为峰值采样点的相位标志信息的起始相位标志信息。数据处理装置对峰值采样点数据与抽取系数对应相乘,就得到了第一脉冲数据了。其中,对于不同相位的峰值采样点得到的脉冲需要与其他峰值采样点得到的脉冲对齐相加,得到第一脉冲数据,即峰值采样点的相位0,1,2,3的采样点分别与抽取系数相乘后,再与相位为3,2,1,0个峰值采样点与抽取系数相乘的结果对齐相加,最终完成114个峰值采样点错峰相加,形成抵消脉冲信号,即第一脉冲数据。
S105、采用第一脉冲数据对待发射原始数据进行延时削峰处理,得到削峰后的发射数据。
数据处理装置在得到了第一脉冲数据之后,由于该第一脉冲数据是与一个通道的待发射数据对应的,因此,数据处理装置就可以采用第一脉冲数据对待发射原始数据进行延时削峰处理,得到削峰后的发射数据了。
在本公开的一些实施例中,数据处理装置将第一脉冲数据与待发射原始数据进行时域对齐后,进行减运算,实现延时削峰处理,得到削峰后的发射数据。
需要说明的是,在本发明实施例中,由于抵消脉冲链路,即第一脉冲数据的链路存在较大时延,所以为了对齐待发射的原始数据的峰值点,需要将待发射原始数据进行延时后,与第一脉冲数据抵消脉冲链路的长度进行对齐,完成待发射原始数据和第一脉冲数据的相减过程,实现削峰,得到了削峰后的发射数据。
示例性的,如图4所示,针对一个通道传输待发送原始数据时,获取一个传输通道上的待发射原始数据input data,通过hbf(半带插值滤波器)对待发射原始数据进行内插处理,得到采样数据;通过cordic(幅度相位单元)对采样数据进行幅度和相位处理,得到采样数据的采样点幅度和采样点相位;通过peak-search(搜峰)对采样点幅度和采样点相位进行搜峰处理,得到峰值采样点的相位标志信息和峰值数据;通过multi_phase_filter&rev_cordic(多相滤波&反变换)根据采样点相位和相位标志信息,对峰值数据进行反变换和多相滤波,得到一个通道对应的第一脉冲数据;采用第一脉冲数据对待发射原始数据进行延时(delay)削峰处理,得到削峰后的发射数据cfr_out。
可以理解的是,由于数据处理装置可以将待发射数据先进行N倍内插处理采样后,再从采样数据中进行脉冲数据的生成,而脉冲数据的生成过程中通过采样数据先进行了幅度和相位处理后,再针对已经增多的采样点的幅度和相位进行搜峰处理,满足处理大带宽下性能的提升,并且通过搜峰处理完后,对峰值数据进行反变换以及多相滤波后,得到的脉冲数据,采用脉冲数据与待发射原始数据是经过延时削峰处理的,从而可以减少削峰延时。
本发明实施例提供的一种数据处理方法中,在S105之后,该方法还包括:S106,如下:
S106、在一个通道上发送削峰后的发射数据。
数据处理装置在采用第一脉冲数据对待发射原始数据进行延时削峰处理,得到削峰后的发射数据之后,该数据处理装置就可以传输该削峰后的发射数据了。
可以理解的是,由于削峰后的发射数据的峰均比降低了,并且削峰时延还较少,且将采样率上插至N倍(内插倍数),可以增大信号处理带宽,这对于5G大带宽下应用是很有意义的,具有典型的应用场景和现实意义。
基于上述实现,当传输通道为至少两个通道时,使用至少两个通道进行数据传输的过程中,本发明实施例还提供了一种数据处理方法,如图5所示,该方法还可以包括:
S201、获取传输通道上的待发射原始数据,对待发射原始数据进行内插处理,得到采样数据。
S202、对采样数据进行幅度和相位处理,得到采样数据的采样点幅度和采样点相位。
S203、对采样点幅度和采样点相位进行搜峰处理,得到峰值采样点的相位标志信息和峰值数据。
S204、根据采样点相位和相位标志信息,对峰值数据进行反变换和多相滤波,得到一个通道对应的第一脉冲数据。
需要说明的是,对于单路多载波信号,需要将每个载波原型滤波器系数叠加组成单路多载波的原型滤波器系数。这样在进行峰值抵消时,可消除较高峰值点同时保持原有信号频谱。在满足信号误差向量幅度(Error Vector Magnitude,EVM),邻信道功率比(Adjacent Channel Power Ratio,ACPR)及互补累计分布函数(Complementary Cumulative Distribution Function,CCDF)指标情况下,原型滤波系数长度取决于信号带宽,带宽越窄原型滤波器系数长度越长,反之越 短。原型滤波器系数较长,将会带来削峰时延的增加,尤其是多级级联削峰情况下时延将会成倍增加,所以本发明实施例提出多相滤波削峰来缩短削峰时延。
这里的S201-204的过程实现与前述的S101-S104的过程描述一致,此处不再赘述。
S205、按照预设时钟数据复用比,获取至少两个通道中的除一个通道外的其他通道对应的第二脉冲数据。
S206、采用第一脉冲数据对待发射原始数据进行延时削峰处理,得到削峰后的第一发射数据,采用第二脉冲数据对其他待发射原始数据进行延时削峰处理,得到削峰后的第二发射数据,其中,其他待发射原始数据为其他通道对应的待发射数据。
S207、在一个通道上发送第一发射数据,在其他通道上分别发送第二发射数据。
当传输通道为至少两个通道时,使用至少两个通道进行数据传输的过程中,数据处理装置可以针对至少两个通道各自生成自己对应的脉冲数据,采用自己的脉冲数据对自己的待发射原始数据进行削峰处理。
在本发明实施例中,数据处理装置可以针对至少两个通道同时进行各自脉冲数据的生成,然后各自的脉冲数据对各自的待发射原始数据进行削峰处理。
例如,数据处理装置在获取的第一脉冲数据的时候,还可以按照预设时钟数据复用比,获取至少两个通道中的除一个通道外的其他通道对应的第二脉冲数据。数据处理装置采用第一脉冲数据对待发射原始数据进行延时削峰处理,得到削峰后的第一发射数据,采用第二脉冲数据对其他待发射原始数据进行延时削峰处理,得到削峰后的第二发射数据,其中,其他待发射原始数据为其他通道对应的待发射数据。数据处理装置在一个通道上发送第一发射数据,在其 他通道上分别发送第二发射数据。
在本发明实施例中,由于其他通道中也可能存在多个通道,因此,本发明实施例中的第二脉冲数据是一个统称,并不表示是一个脉冲数据的意思,每个通道对应一个脉冲数据。
需要说明的是,在本发明实施例中,数据处理装置是采用分时复用进行至少两个通道的多相滤波,生成不同的脉冲数据的。
示例性的,在本发明实施例中,内插处理可以采用半带插值滤波器,假设数据处理装置分时复用2路通道,例如2频段(ch0(通道0)和ch1(通道1))时,如图6所示,数据处理装置通过半带滤波器模块hbf(即内插单元),分时复用完成2通道的内插滤波,得到采样IQ数据。通过幅度相位单元,即cordic,对输入单个频段的采样IQ数据求幅度和相位,具体采用cordic_u0(幅度相位单元0)对ch0对应的待发射原始数据进行幅度和相位的计算,采用cordic_u1(幅度相位单元1)对ch1对应的待发射原始数据进行幅度和相位的计算。通过搜峰单元,即pk_sch,完成单个通道的峰值搜索并标记相位,得到相位标志信息,具体为采用pk_sch_u0(搜峰单元0)对ch0对应的数据进行搜峰,并标记相位,得到相位标志信息,采用pk_sch_u1(搜峰单元1)对ch1对应的数据进行搜峰,并标记相位,得到相位标志信息。通过多相滤波单元multi_phase_filter0,分时复用完成2通道滤波,得到第一脉冲数据和第二脉冲数据。原始数据延时模块delay_unit,同时完成2个通道延时,延时大小取决于抵消脉冲链路延时,采用第一脉冲数据和第二脉冲数据分别与延时后的2通道对应的待发射原始数据进行相减抵消,得到第一发射数据cfr_out0和第二发射数据cfr_out1。
在本发明实施例中,典型的处理模块如半带插值滤波器,cordic等模块按照IP(Intellectual Property,知识产权)化设计,便于后期版本维护与升级。
详细的,以2通道,2倍差值和2倍的时钟数据复用比为例进行说明。
半带插值滤波器hbf,根据半带滤波器系数特性,可以减少一半乘加单元资源。同时在时钟数据比较高情况下,可实现资源复用。若在2倍的时钟数据复用比下,半带滤波器实现结构如图7所示。半带滤波器系数系数长度为27,中间点对称有效系数14个,其中一半系数为0,所以有效系数只有7个。图7中ch0和ch1通道中的每个延时链都为一个采样点延时即2个时钟(即2D)的保持时间,先将延时链数据进行对称相加(14个延时链变7个,与7个系数相乘),然后将每一路相加后数据乘以系数coef0-coef6(系数0~系数6),统一完成所有路数据求和。根据复用比关系,每个采样点时间可完成2通道滤波,最后延时D后,通过mux(multiplexer,数据选择器)分时输出并提取每个通道滤波后数据。同时该hbf滤波器支持旁路功能,对于N个2倍插值滤波串联可以组成小于2N倍插值滤波。
幅度相位单元cordic,计算采样点信号幅值和相位,具体的是采用多级迭代计算的,其具体过程已经在前面的实施例中进行了详细的描述,此处不再赘述。
搜峰单元pk_sch,cordic输出采样点幅值str,以及标记原始数据和插值数据的幅值。串行比较原始数据及插值数据的峰值,输出最大值即峰值数据、相位和相位标志信息。然后,用峰值数据与配置的预设削峰门限比较,如果大于预设削峰门限,则输出被标记的峰值数据及峰值相位标志信息,否则丢弃。或者是,先从原始数据及插值数据的峰值中与预设削峰门限进行对比,找到有效峰值,再针对原始数据及插值数据的峰值,输出两个原始数据间隔(预设窗口长度)的最大峰值作为峰值采样点的峰值数据,并且输出的峰值数据减去预设削峰门限,进入反cordic模块实现类似cordic模块处理,最后输出峰值增益的IQ数据,即峰值采样点数据。
多相滤波单元multi_phase_filter,实现过程如图8所示。这里为2倍时钟复用关系,可同时处理2路通路的峰值数据,设计中的原型滤波器系数ram(random access memory,随机存取存储器)深度为17,那么抽取系数为(17+1)/2=9个,即ch0_read_ctrl(通道0地址变量)的抽取系数地址为:addr_0(地址_0),addr_2(地址_2),addr_4(地址_4),……,addr_16(地址_16);ch1_read_ctrl(通道1地址变量)的抽取系数地址为:addr_0,addr_2,addr_4,……,addr_16。这样,通过coef_mem0(系数变量)按照抽取倍数系数读取地址抽取出ch0对应的抽取系数ch0_coef(抽取系数0),以及ch1对应的抽取系数ch1_coef(抽取系数1),ch1_read_ctrl比ch0_read_ctrl对应的系数延时D输出。本发明实施例中,两个通道的峰值数据产生系数读地址前,先要进行时序对齐进行分时复用,共享1个系数ram。然后,通过mux分时(延时D后,)与各自峰值数据(例如,peak0和peak1等)相乘完成各自的多相滤波过程,最后将2路通道的滤波后抵消脉冲(第一脉冲数据ch0_cpg和第二脉冲数据ch1_cpg)输出,采用ch0_cpg和ch1_cpg分别与待发射原始数据进行削峰数量,分别得到发射数据cfr_out(第一发射数据和第二发射数据)。
需要说明的是,多相滤波单元的内部存储单通道的原型滤波器系数,在采用两个通道进行数据传输是,可以复用一个单通道的原型滤波系数,也可以一个通道采用一个原型滤波系数,本发明实施例不作限制。本发明实施例可适用于高时钟,低采样率,进行资源复用的情形,并且,多相滤波单元可以同时处理多个峰值数据,该多相滤波单元的最大处理的峰值个数,取决于memory(存储单元)的个数及预设时钟数据复用比。
在一实施方式中,原型滤波系数是关于中心点对称,所以读一半系数即可。图8中对于2倍插值,峰值相位0,读起始地址0,每隔2个地址读取1个系数。 一次读取地址为0,2,4......14,16。当读取到大于一半的抽取系数时,将抽取系数取共轭,直到整个多相滤波完成。最后采用完成将各自通道的原始数据(待发射原始数据)与抵消脉冲(第一脉冲数据和第二脉冲数据)的分别相减,实现不同通道中的一次削峰过程。
可以理解的是,针对多个通道的传输过程,可以通过获取每个通道的脉冲数据,采用各自的脉冲数据对各自的待发射原始数据进行削峰。由于数据处理装置在每个通道进行脉冲数据生成的过程中,可以将待发射数据先进行N倍内插处理采样后,再从采样数据中进行脉冲数据的生成,而脉冲数据的生成过程中通过采样数据先进行了幅度和相位处理后,再针对已经增多的采样点的幅度和相位进行搜峰处理,满足处理大带宽下性能的提升,并且通过搜峰处理完后,对峰值数据进行反变换以及多相滤波后,得到的脉冲数据,采用多个通道脉冲数据与待发射原始数据是经过延时削峰处理的,从而可以减少削峰延时。
本发明实施例提供了一种数据处理装置1,如图9所示,该数据处理装置可以包括:
插值滤波单元10,设置为获取传输通道上的待发射原始数据,对所述待发射原始数据进行内插处理,得到采样数据;
幅度相位单元11,设置为对所述采样数据进行幅度和相位处理,得到所述采样数据的采样点幅度和采样点相位;
搜峰单元12,设置为对所述采样点幅度和采样点相位进行搜峰处理,得到峰值采样点的相位标志信息和峰值数据;
多相滤波单元13,设置为根据所述采样点相位和所述相位标志信息,对所述峰值数据进行反变换和多相滤波,得到一个通道对应的第一脉冲数据;
削峰单元14,设置为采用所述第一脉冲数据对所述待发射原始数据进行延 时削峰处理,得到削峰后的发射数据。
在本公开的一些实施例中,所述幅度相位单元11,是设置为计算所述采样数据的幅度和相位,得到所述采样数据中的每个采样点对应的幅度和相位。
在本公开的一些实施例中,所述搜峰单元12,是设置为将所述采样点幅度与预设削峰门限进行对比,确定出满足所述预设削峰门限的有效采样点对应的有效峰值数据;从所述有效峰值数据中确定出每个预设窗口长度内峰值最大的峰值数据,得到所述峰值采样点的峰值数据;对所述采样点相位进行标记,获取所述峰值采样点的相位对应的相位标志信息。
在本公开的一些实施例中,所述多相滤波单元13,是设置为获取所述多相滤波的原型滤波器系数和原型滤波器系数长度;根据所述相位标志信息和所述原型滤波器系数长度,对所述原始滤波器系数进行抽取,得到峰值采样点对应的抽取系数,所述抽取倍数与内插时的内插倍数一致;根据所述采样点相位和所述峰值数据,进行反变换,得到峰值采样点数据;根据所述峰值采样点数据和所述抽取系数,得到所述一个通道对应的所述第一脉冲数据。
在本公开的一些实施例中,所述多相滤波单元13,还设置为将所述峰值采样点数据和所述抽取系数乘积运算后,得到所述一个通道对应的所述第一脉冲数据。
在本公开的一些实施例中,所述削峰单元14,是设置为将所述第一脉冲数据与所述待发射原始数据进行时域对齐后,进行减运算以实现延时削峰处理,得到所述削峰后的发射数据。
在本公开一些实施例中,所述装置1还包括:第一发送单元15(图9中未示出)。
所述多相滤波单元13,还设置为在传输通道为至少两个通道的情况下,按 照预设时钟数据复用比,获取所述至少两个通道中的除所述一个通道外的其他通道对应的第二脉冲数据;
所述削峰单元14,还设置为采用所述第一脉冲数据对所述待发射原始数据进行延时削峰处理,得到削峰后的第一发射数据,以及采用所述第二脉冲数据对其他待发射原始数据进行延时削峰处理,得到削峰后的第二发射数据,其中,所述其他待发射原始数据为所述其他通道对应的待发射数据;
所述第一发送单元15,设置为在所述一个通道上发送所述第一发射数据,在所述其他通道上分别发送所述第二发射数据。
在本公开的一些实施例中,所述装置1还包括:第二发送单元16(图9中未示出)。
所述第二发送单元16,设置为采用所述第一脉冲数据对所述待发射原始数据进行延时削峰处理,得到削峰后的发射数据之后,在所述一个通道上发送所述削峰后的发射数据。
如图10所示,本发明实施例还提供了一种数据处理装置,包括:
存储器16,设置为存储可执行数据处理指令;
处理器17,设置为执行所述存储器16中存储的可执行数据处理指令时,实现前述实施例所述的数据处理方法。
其中,处理器可以是一种集成电路芯片,具有信号的处理能力,例如通用处理器、数字信号处理器(Digital Signal Processor,DSP),或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等,其中,通用处理器可以是微处理器或者任何常规的处理器等。存储器可以是易失性存储器或非易失性存储器,也可包括易失性和非易失性存储器两者。其中,非易失性存储器可以是只读存储器(Read Only Memory,ROM)、可编程只读存储器(Programmable  Read-Only Memory,PROM)、可擦除可编程只读存储器(Erasable Programmable Read-Only Memory,EPROM)、闪存(Flash Memory)等。易失性存储器可以是随机存取存储器(Random Access Memory,RAM),其用作外部高速缓存。通过示例性但不是限制性说明,许多形式的RAM可用,例如静态随机存取存储器(Static Random Access Memory,SRAM)、同步静态随机存取存储器(Synchronous Static Random Access Memory,SSRAM)。本发明实施例描述的存储器440旨在包括这些和任意其它适合类型的存储器。
本发明实施例提供了一种计算机可读存储介质,存储有可执行数据处理指令,用于引起处理器执行时,实现前述实施例所述的数据处理方法。
在一些实施例中,存储介质可以是FRAM、ROM、PROM、EPROM、EEPROM、闪存、磁表面存储器、光盘、或CD-ROM等存储器;也可以是包括上述存储器之一或任意组合的各种设备。
在一些实施例中,可执行指令可以采用程序、软件、软件模块、脚本或代码的形式,按任意形式的编程语言(包括编译或解释语言,或者声明性或过程性语言)来编写,并且其可按任意形式部署,包括被部署为独立的程序或者被部署为模块、组件、子例程或者适合在计算环境中使用的其它单元。
作为示例,可执行指令可以但不一定对应于文件系统中的文件,可以可被存储在保存其它程序或数据的文件的一部分,例如,存储在超文本标记语言(HTML,Hyper Text Markup Language)文档中的一个或多个脚本中,存储在专用于所讨论的程序的单个文件中,或者,存储在多个协同文件(例如,存储一个或多个模块、子程序或代码部分的文件)中。
作为示例,可执行指令可被部署为在一个计算设备上执行,或者在位于一个地点的多个计算设备上执行,又或者,在分布在多个地点且通过通信网络互 连的多个计算设备上执行。
以上所述,仅为本公开的实施例而已,并非用于限定本公开的保护范围。

Claims (18)

  1. 一种数据处理方法,包括:
    获取传输通道上的待发射原始数据,对所述待发射原始数据进行内插处理,得到采样数据;
    对所述采样数据进行幅度和相位处理,得到所述采样数据的采样点幅度和采样点相位;
    对所述采样点幅度和所述采样点相位进行搜峰处理,得到峰值采样点的相位标志信息和峰值数据;
    根据所述采样点相位和所述相位标志信息,对所述峰值数据进行反变换和多相滤波,得到一个通道对应的第一脉冲数据;
    采用所述第一脉冲数据对所述待发射原始数据进行延时削峰处理,得到削峰后的发射数据。
  2. 根据权利要求1所述的方法,其中,所述对所述采样数据进行幅度和相位处理,得到所述采样数据的采样点幅度和采样点相位,包括:
    计算所述采样数据的幅度和相位,得到所述采样数据中的每个采样点对应的幅度和相位。
  3. 根据权利要求1或2所述的方法,其中,所述对所述采样点幅度和所述采样点相位进行搜峰处理,得到峰值采样点的相位标志信息和峰值数据,包括:
    将所述采样点幅度与预设削峰门限进行对比,确定出满足所述预设削峰门限的有效采样点对应的有效峰值数据;
    从所述有效峰值数据中确定出每个预设窗口长度内峰值最大的峰值数据,得到所述峰值采样点的峰值数据;
    对所述采样点相位进行标记,获取所述峰值采样点的相位对应的相位标志 信息。
  4. 根据权利要求1所述的方法,其中,所述根据所述采样点相位和所述相位标志信息,对所述峰值数据进行反变换和多相滤波,得到一个通道对应的第一脉冲数据,包括:
    获取所述多相滤波的原型滤波器系数和原型滤波器系数长度;
    根据所述相位标志信息和所述原型滤波器系数长度,对所述原始滤波器系数进行抽取,得到峰值采样点对应的抽取系数,所述抽取倍数与内插时的内插倍数一致;
    根据所述采样点相位和所述峰值数据,进行反变换,得到峰值采样点数据;
    根据所述峰值采样点数据和所述抽取系数,得到所述一个通道对应的所述第一脉冲数据。
  5. 根据权利要求4所述的方法,其中,所述根据所述峰值采样点数据和所述抽取系数,得到所述一个通道对应的所述第一脉冲数据,包括:
    将所述峰值采样点数据和所述抽取系数乘积运算后,得到所述一个通道对应的所述第一脉冲数据。
  6. 根据权利要求1所述的方法,其中,所述采用所述第一脉冲数据对所述待发射原始数据进行延时削峰处理,得到削峰后的发射数据,包括:
    将所述第一脉冲数据与所述待发射原始数据进行时域对齐后,进行减运算以实现延时削峰处理,得到所述削峰后的发射数据。
  7. 根据权利要求1所述的方法,在所述传输通道为至少两个通道的情况下,,所述方法还包括:
    按照预设时钟数据复用比,获取所述至少两个通道中的除所述一个通道外的其他通道对应的第二脉冲数据;
    采用所述第一脉冲数据对所述待发射原始数据进行延时削峰处理,得到削峰后的第一发射数据;
    采用所述第二脉冲数据对其他待发射原始数据进行延时削峰处理,得到削峰后的第二发射数据,其中,所述其他待发射原始数据为所述其他通道对应的待发射数据;
    在所述一个通道上发送所述第一发射数据,在所述其他通道上分别发送所述第二发射数据。
  8. 根据权利要求1所述的方法,所述采用所述第一脉冲数据对所述待发射原始数据进行延时削峰处理,得到削峰后的发射数据之后,所述方法还包括:
    在所述一个通道上发送所述削峰后的发射数据。
  9. 一种数据处理装置,包括:
    插值滤波单元,设置为获取传输通道上的待发射原始数据,对所述待发射原始数据进行内插处理,得到采样数据;
    幅度相位单元,设置为对所述采样数据进行幅度和相位处理,得到所述采样数据的采样点幅度和采样点相位;
    搜峰单元,设置为对所述采样点幅度和所述采样点相位进行搜峰处理,得到峰值采样点的相位标志信息和峰值数据;
    多相滤波单元,设置为根据所述采样点相位和所述相位标志信息,对所述峰值数据进行反变换和多相滤波,得到一个通道对应的第一脉冲数据;
    削峰单元,设置为采用所述第一脉冲数据对所述待发射原始数据进行延时削峰处理,得到削峰后的发射数据。
  10. 根据权利要求9所述的装置,其中,
    所述幅度相位单元,是设置为计算所述采样数据的幅度和相位,得到所述 采样数据中的每个采样点对应的幅度和相位。
  11. 根据权利要求9或10所述的装置,其中,
    所述搜峰单元,是设置为将所述采样点幅度与预设削峰门限进行对比,确定出满足所述预设削峰门限的有效采样点对应的有效峰值数据;从所述有效峰值数据中确定出每个预设窗口长度内峰值最大的峰值数据,得到所述峰值采样点的峰值数据;对所述采样点相位进行标记,获取所述峰值采样点的相位对应的相位标志信息。
  12. 根据权利要求9所述的装置,其中,
    所述多相滤波单元,是设置为获取所述多相滤波的原型滤波器系数和原型滤波器系数长度;根据所述相位标志信息和所述原型滤波器系数长度,对所述原始滤波器系数进行抽取,得到峰值采样点对应的抽取系数,所述抽取倍数与内插时的内插倍数一致;根据所述采样点相位和所述峰值数据,进行反变换,得到峰值采样点数据;根据所述峰值采样点数据和所述抽取系数,得到所述一个通道对应的所述第一脉冲数据。
  13. 根据权利要求12所述的装置,其中,
    所述多相滤波单元,还设置为将所述峰值采样点数据和所述抽取系数乘积运算后,得到所述一个通道对应的所述第一脉冲数据。
  14. 根据权利要求9所述的装置,其中,
    所述削峰单元,是设置为将所述第一脉冲数据与所述待发射原始数据进行时域对齐后,进行减运算以实现延时削峰处理,得到所述削峰后的发射数据。
  15. 根据权利要求9所述的装置,还包括:第一发送单元;
    所述多相滤波单元,还设置为在所述传输通道为至少两个通道的情况下,按照预设时钟数据复用比,获取所述至少两个通道中的除所述一个通道外的其 他通道对应的第二脉冲数据;
    所述削峰单元,还设置为采用所述第一脉冲数据对所述待发射原始数据进行延时削峰处理,得到削峰后的第一发射数据,以及采用所述第二脉冲数据对其他待发射原始数据进行延时削峰处理,得到削峰后的第二发射数据,其中,所述其他待发射原始数据为所述其他通道对应的待发射数据;
    所述第一发送单元,设置为在所述一个通道上发送所述第一发射数据,在所述其他通道上分别发送所述第二发射数据。
  16. 根据权利要求9所述的装置,还包括:第二发送单元;
    所述第二发送单元,设置为采用所述第一脉冲数据对所述待发射原始数据进行延时削峰处理,得到削峰后的发射数据之后,在所述一个通道上发送所述削峰后的发射数据。
  17. 一种数据处理装置,包括:
    存储器,设置为存储可执行数据处理指令;
    处理器,设置为执行所述存储器中存储的可执行数据处理指令时,实现权利要求1至8任一项所述的方法。
  18. 一种计算机可读存储介质,其中,存储有可执行数据处理指令,用于引起处理器执行时,实现权利要求1至8任一项所述的方法。
PCT/CN2019/126425 2018-12-18 2019-12-18 数据处理方法及装置、计算机可读存储介质 Ceased WO2020125697A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201811549792.2A CN111343119B (zh) 2018-12-18 2018-12-18 一种数据处理方法及装置、计算机可读存储介质
CN201811549792.2 2018-12-18

Publications (1)

Publication Number Publication Date
WO2020125697A1 true WO2020125697A1 (zh) 2020-06-25

Family

ID=71100641

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/126425 Ceased WO2020125697A1 (zh) 2018-12-18 2019-12-18 数据处理方法及装置、计算机可读存储介质

Country Status (2)

Country Link
CN (1) CN111343119B (zh)
WO (1) WO2020125697A1 (zh)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112202980A (zh) * 2020-09-21 2021-01-08 南通大学 一种基于能量插值的fft测量多音信号频率的方法
CN115250219B (zh) * 2021-04-25 2023-09-15 北京金山云网络技术有限公司 削峰进度的预测方法、装置和电子设备
CN115333553B (zh) * 2022-10-11 2022-12-23 深圳捷扬微电子有限公司 一种全数字超宽带脉冲发射机
CN117155753B (zh) * 2023-06-29 2024-08-13 密卡思(深圳)电讯有限公司 一种降低发射机载波峰均比的削峰方法和系统
CN118827309B (zh) * 2024-09-11 2025-02-14 杭州兆通微电子有限公司 一种信号的削峰方法、装置、设备及存储介质

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102075484A (zh) * 2011-01-18 2011-05-25 中兴通讯股份有限公司 一种降低信号峰均比的方法和装置
CN103188199A (zh) * 2013-03-22 2013-07-03 中兴通讯股份有限公司 一种基于分数延时cpg的宽带削峰方法与装置
CN103685097A (zh) * 2012-09-05 2014-03-26 京信通信系统(中国)有限公司 一种信号处理方法、装置及系统
US20180198668A1 (en) * 2017-01-06 2018-07-12 Samsung Electronics Co., Ltd. Apparatus and method for reducing peak-to-average power ratio in wireless communication system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101420404B (zh) * 2007-10-26 2011-06-01 华为技术有限公司 峰值对消方法、峰值对消装置与基准消峰信号生成装置
US9503301B2 (en) * 2015-03-18 2016-11-22 Xilinx, Inc. Noise-shaping crest factor reduction with polyphase transforming

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102075484A (zh) * 2011-01-18 2011-05-25 中兴通讯股份有限公司 一种降低信号峰均比的方法和装置
CN103685097A (zh) * 2012-09-05 2014-03-26 京信通信系统(中国)有限公司 一种信号处理方法、装置及系统
CN103188199A (zh) * 2013-03-22 2013-07-03 中兴通讯股份有限公司 一种基于分数延时cpg的宽带削峰方法与装置
US20180198668A1 (en) * 2017-01-06 2018-07-12 Samsung Electronics Co., Ltd. Apparatus and method for reducing peak-to-average power ratio in wireless communication system

Also Published As

Publication number Publication date
CN111343119A (zh) 2020-06-26
CN111343119B (zh) 2022-10-14

Similar Documents

Publication Publication Date Title
WO2020125697A1 (zh) 数据处理方法及装置、计算机可读存储介质
CN115622854A (zh) 数据传输、数据调制方法、装置、电子设备和存储介质
EP2091194B1 (en) Single carrier frequency division multiple access technique
CN115883306A (zh) 数据传输方法、数据调制方法、电子设备和存储介质
US20140286384A1 (en) Method for equalizing filterbank multicarrier (fbmc)modulations
CN111901279A (zh) 数据传输方法、装置、设备和存储介质
CN109644171B (zh) 滤波后的多载波通信
CN105471800B (zh) 一种基于叠接相加的f-ofdm多子带频域滤波器
JP2014511062A (ja) Oqam型マルチキャリア信号を変調するための方法、並びに対応するコンピュータプログラム及び変調装置
WO2023051592A1 (zh) 数据传输方法、数据调制方法、电子设备和存储介质
Saad et al. UFMC transceiver complexity reduction
EP2782304A1 (en) Method for equalizing filterbank multicarrier (FBMC) modulations
CN106716948B (zh) 用于提供多载波调制的信号的方法和装置
CN112804177A (zh) Ofdm时域加窗方法及装置
JP2009543434A (ja) 通信システムにおけるピーク電力を低減する装置および方法
CN104885424B (zh) 滤波器组中的滤波器的确定方法、设备和存储介质
CN100452652C (zh) 一种双正交滤波器设计方法及其设计装置
CN101834822B (zh) 一种基于峰值消除的峰值抵消方法和装置
WO2024114416A1 (zh) 数据传输方法、设备和存储介质
WO2023213217A1 (zh) 数据序列的形成方法、装置、存储介质及电子装置
Loulou et al. Efficient fast-convolution based implementation of 5G waveform processing using circular convolution decomposition
US8085890B2 (en) Apparatus and method for base band filtering
JP4828365B2 (ja) 送信装置およびピーク抑圧方法
JP4429809B2 (ja) Ofdm変調装置及びofdm変調方法
CN106464628B (zh) 发送和接收滤波器组多载波信号的方法及装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19900637

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19900637

Country of ref document: EP

Kind code of ref document: A1