WO2021259177A1 - 数据调制方法、装置、设备及存储介质 - Google Patents

数据调制方法、装置、设备及存储介质 Download PDF

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Publication number
WO2021259177A1
WO2021259177A1 PCT/CN2021/101139 CN2021101139W WO2021259177A1 WO 2021259177 A1 WO2021259177 A1 WO 2021259177A1 CN 2021101139 W CN2021101139 W CN 2021101139W WO 2021259177 A1 WO2021259177 A1 WO 2021259177A1
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data
constellation point
modulation
modulation symbols
group
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PCT/CN2021/101139
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English (en)
French (fr)
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辛雨
华健
胡留军
郁光辉
许进
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中兴通讯股份有限公司
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Priority to US18/012,261 priority Critical patent/US20230246895A1/en
Priority to KR1020237001833A priority patent/KR20230026432A/ko
Priority to EP21828668.0A priority patent/EP4170984A1/en
Publication of WO2021259177A1 publication Critical patent/WO2021259177A1/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
    • H04L27/2614—Peak power aspects
    • H04L27/2615—Reduction thereof using coding
    • H04L27/2617—Reduction thereof using coding using block codes
    • 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
    • H04L27/2626—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
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2689—Link with other circuits, i.e. special connections between synchronisation arrangements and other circuits for achieving synchronisation
    • H04L27/2691—Link with other circuits, i.e. special connections between synchronisation arrangements and other circuits for achieving synchronisation involving interference determination or cancellation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/3405—Modifications of the signal space to increase the efficiency of transmission, e.g. reduction of the bit error rate, bandwidth, or average power
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/345—Modifications of the signal space to allow the transmission of additional information
    • H04L27/3461—Modifications of the signal space to allow the transmission of additional information in order to transmit a subchannel
    • H04L27/3472—Modifications of the signal space to allow the transmission of additional information in order to transmit a subchannel by switching between alternative constellations
    • 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

Definitions

  • This application relates to the field of communication technology, for example, to a data modulation method, device, device, and storage medium.
  • phase noise is relatively large, even if the phase compensation is done at the receiving end, a lot of phase noise will remain.
  • the Doppler frequency shift is relatively large in the high frequency scene, even if the frequency offset compensation is done at the receiving end, some phase deviation will remain in the data symbol.
  • the phase noise will be greater.
  • This application provides a data modulation method, device, equipment, and storage medium, which effectively suppresses phase noise.
  • this application provides a data modulation method, including:
  • the constellation point modulation symbols of the modulation mode are combined by the first group of constellation point modulation symbols and the second group of constellation point modulation symbols;
  • the modulation method to modulate data, and the data includes a first data block and a second data block; the first data block is modulated by the first set of constellation point modulation symbols, and the second data block is modulated by the first data block. Two sets of constellation point modulation symbol modulation.
  • this application provides a data modulation device, including:
  • the configuration module is configured to configure a modulation mode, and the constellation point modulation symbols of the modulation mode are formed by combining the first group of constellation point modulation symbols and the second group of constellation point modulation symbols;
  • the modulation module is configured to use the modulation method to modulate data, the data includes a first data block and a second data block; the first data block is modulated by the first set of constellation point modulation symbols, and the second data The block is modulated by the second set of constellation point modulation symbols.
  • this application provides a device, including:
  • One or more processors are One or more processors;
  • Storage device for storing one or more programs
  • the one or more processors When the one or more programs are executed by the one or more processors, the one or more processors implement any method as in the embodiments of the present application.
  • the present application provides a storage medium that stores a computer program, and when the computer program is executed by a processor, any one of the methods in the embodiments of the present application is implemented.
  • FIG. 1 is a schematic flowchart of a data modulation method provided by an embodiment of this application
  • FIG. 1a is a schematic diagram of constellation point modulation symbols of a combined modulation method provided by an embodiment of this application;
  • FIG. 1b is a schematic diagram of constellation point modulation symbols of another combined modulation method provided by an embodiment of this application;
  • FIG. 1c is a schematic diagram of constellation point modulation symbols of yet another combined modulation method provided by an embodiment of this application;
  • FIG. 1d is a schematic diagram of constellation point modulation symbols of another combined modulation method provided by an embodiment of this application.
  • FIG. 1e is a schematic diagram of constellation point modulation symbols of yet another combined modulation method provided by an embodiment of this application;
  • FIG. 1f is a schematic diagram of constellation point modulation symbol and bit mapping of a combined modulation method provided by an embodiment of this application;
  • FIG. 2 is a schematic structural diagram of a data modulation device provided by an embodiment of the application.
  • FIG. 3 is a schematic structural diagram of a device provided by an embodiment of the application.
  • FIG. 1 is a schematic flowchart of a data modulation method provided by an embodiment of the application.
  • the method may be suitable for digital modulation.
  • the method may be executed by a data modulation device, and the device may be executed by a data modulation device. It is implemented by software and/or hardware and integrated on a device, that is, a terminal device.
  • the device can cover any suitable type of user equipment and base station.
  • a data modulation method provided by this application includes the following steps.
  • a modulation method may be configured first, and the constellation point modulation symbols of the modulation method may be formed by combining the first group of constellation point modulation symbols and the second group of constellation point modulation symbols.
  • the first set of constellation point modulation symbols and the second set of constellation point modulation symbols may have different characteristics.
  • the first set of constellation point modulation symbols and the second set of constellation point modulation symbols can be used to modulate different data blocks to reduce the influence of phase noise on the demodulation performance of a certain data block.
  • the first set of constellation points is used to modulate the data of users whose capacity is below the capacity threshold or whose transmission conditions are below the transmission threshold.
  • the first set of constellation point modulation symbols includes but is not limited to a set of Binary Phase Shift Keying (BPSK) modulation symbols, the phase difference between adjacent modulation symbols is ⁇ /2 or a set of Quadrature Phase Shift Keying (Quadrature Phase Shift Keying, QPSK) modulation symbol.
  • the second group of constellation point modulation symbols can be BPSK modulation symbols or any modulation symbols.
  • This step does not limit how to form the constellation point modulation symbol of the modulation method based on the combination of the first set of constellation point modulation symbols and the second set of constellation point modulation symbols, as long as it can ensure that the data is modulated at the constellation point modulation symbols based on the modulation method.
  • the first set of constellation point modulation symbols and the second set of constellation point modulation symbols respectively modulate different data blocks to reduce the influence of phase noise on the demodulation performance of a certain data block.
  • the configuration of the modulation method in this step may include the constellation point modulation symbols of the modulation method based on the combination of the first set of constellation point modulation symbols and the second set of constellation point modulation symbols. After determining the constellation point modulation symbols of the modulation method, it may be based on The constellation point modulation symbol modulates the data.
  • the first data block and the second data block can be divided based on the user's ability or transmission conditions. For example, the data of a single user whose ability is lower than the ability threshold or the transmission condition is lower than the transmission threshold is the first data block, and the ability is higher than the ability threshold or transmission The data of a single user whose condition is higher than the transmission threshold is the second data block.
  • the data of a single user whose capability is equal to the capability threshold or whose transmission condition is equal to the transmission threshold may be the first data block or the second data block.
  • the first data block and the second data block may also be the data of the same user.
  • the first data block may be encoded control information, that is, control information data.
  • the control information data may be control information data of a single user, or control information data of multiple users.
  • the second data block may be the user's business data.
  • the first set of constellation point modulation symbols can modulate the coded control information, and the second set of constellation point modulation symbols can modulate user service data.
  • this step can modulate the data based on the configured modulation mode.
  • the first data block is modulated by the first set of constellation point modulation symbols
  • the second data block is modulated by the second set of constellation points. Symbol modulation to achieve hierarchical modulation to reduce the influence of phase noise on the demodulation performance of the first data block.
  • the first data block is modulated by the first set of constellation point modulation symbols
  • the second data block is modulated by the second set of constellation point modulation symbols based on the way of mapping.
  • the bits corresponding to the data are mapped to the modulation mode one by one to realize that the bit information of the first data block is distinguished by different first group of constellation point modulation symbols, and the bit information of the second data block is determined by different second group of constellation points Distinguished by modulation symbols.
  • the data may include the data of a single user, or may include the data of at least one user.
  • the content of the data is not limited, and it can be coded control information or user data.
  • a modulation method is first configured.
  • the constellation point modulation symbols of the modulation method are composed of a first group of constellation point modulation symbols and a second group of constellation point modulation symbols;
  • Modulation mode modulates data, the data includes a first data block and a second data block; the first data block is modulated by the first set of constellation point modulation symbols, and the second data block is modulated by the second set of constellations Point modulation symbol modulation.
  • This method effectively suppresses phase noise during data demodulation.
  • the constellation point modulation symbols of the modulation mode are formed by combining the first group of constellation point modulation symbols and the second group of constellation point modulation symbols, including:
  • a constellation point modulation symbol of the modulation mode is combined.
  • the phase of the second constellation point modulation symbol can be adjusted based on the phase of the first set of constellation point modulation symbols, and then the modulation symbol of the second constellation point based on the first set of constellation points and the adjusted second constellation point
  • the modulation symbols are combined to form a constellation point modulation symbol of the modulation method.
  • the power normalization factor can be combined to form the constellation point modulation symbols.
  • first adjusting the phase of the second constellation point modulation symbol is that the receiving end is less affected by the second constellation point modulation symbol when demodulating the first set of constellation point modulation symbols, that is, the first data block can be enhanced Ability to suppress phase noise.
  • the constellation point modulation symbol of the modulation mode is combined by the following formula:
  • S(n) is a modulation symbol in the constellation point modulation symbol group ⁇ S(n) ⁇ of the modulation method
  • S1(k) is one of the first group of constellation point modulation symbols ⁇ S1(k) ⁇ Modulation symbol
  • ⁇ (S1(k)) is the phase of S1(k)
  • S2(m) is a modulation symbol in the second group of constellation point modulation symbols ⁇ S2(m) ⁇
  • k 0, 1,... ., K-1
  • m 0, 1,..., M-1
  • n 0, 1,..., N-1
  • N is an even integer greater than or equal to 4
  • P is a constant.
  • P is the power normalization factor.
  • the first group of constellation point modulation symbols is a group of binary phase shift keying BPSK modulation symbols, and the phase difference between adjacent modulation symbols is ⁇ /2.
  • the first data block is modulated by the first set of constellation point modulation symbols, including:
  • the number of the first group of constellation point modulation symbol groups may not be limited, such as being divided into at least two groups.
  • the first group of constellation point modulation symbols is divided into odd and even groups based on the number of bits.
  • the first data block is modulated based on the modulation symbols of each group of constellation points after grouping, so as to realize the mapping modulation.
  • the odd bits of the first data block are modulated by the modulation symbols of the odd bit groups of the first group of constellation point modulation symbols; the even bits are modulated by the modulation symbols of the even bit groups of the first group of constellation point modulation symbols.
  • the modulating data using the modulation method includes:
  • the grouping mode of the constellation point modulation symbols of the modulation mode and the corresponding modulation means please refer to the grouping mode of the first group of constellation point modulation symbols and the corresponding modulation means, which will not be repeated here.
  • the maximum modulus value among the modulation symbols included in the second group of constellation point modulation symbols is less than one of the following: the maximum modulus value in the first group of constellation point modulation symbols; the first group of constellation points The smallest modulus value in the point modulation symbol; half of the smallest modulus value in the first group of constellation point modulation symbols.
  • the peak-to-average ratio of the modulated data can be further reduced, and the demodulation of the first data block can be reduced.
  • Time is affected by phase noise.
  • the data uses N per log 2 or every log 2 (N/2) binary bit data sequence as a unit, and constellation point modulation symbols of the modulation mode are used for mapping modulation, and the binary The bit data sequence is the encoded data sequence.
  • the data in order to realize that the first data block is modulated by the first group of constellation point modulation symbols, and the second data block is modulated by the second constellation point modulation symbols, the data can be divided, and then the constellation point modulation symbols of the modulation mode can be used for mapping modulation. For example, the bits in the data are mapped one by one to the corresponding first group of constellation point modulation symbols and the second group of constellation point modulation symbols for modulation.
  • every log 2 N or every log 2 (N/2) binary bit data sequence can be a unit.
  • the correspondence relationship during the mapping and modulation can be determined based on the number of binary bit data sequences included in each unit, which is not limited here. For example, 2 bits are a unit, the first bit data sequence corresponds to the first data block, and the second bit data sequence corresponds to the second data block.
  • the first bit data sequence can be modulated by the first set of constellation point modulation symbols, and the first bit data sequence can be modulated by the first set of constellation point modulation symbols.
  • the two-bit data sequence is modulated using the second constellation point modulation symbol to achieve mapping modulation.
  • bit data of the first data block is data of a single user whose capability is lower than the capability threshold or the transmission condition is lower than the transmission threshold.
  • the data of users whose capabilities are below the capability threshold or whose transmission conditions are below the transmission threshold can be modulated by the first set of constellation point modulation symbols, so that the user data can better resist the influence of phase noise during demodulation.
  • the specific content of the transmission conditions is not limited and can be determined based on actual conditions.
  • the transmission conditions are based on any condition that can determine the transmission performance.
  • the determination of the ability is not limited, and those skilled in the art can set it according to actual needs, such as determining the ability based on the Category level.
  • bit data of the first data block is coded control information of a single user or multiple users.
  • the encoding method is not limited here.
  • the first data block may be encoded control information.
  • the first data block and the second data block are data of the same user or data of different users.
  • the method further includes:
  • the modulated data can be transmitted on the physical resource.
  • the physical resources are not limited. As long as the receiving end can receive the modulated data.
  • the transmitting the modulated data on the physical resource includes:
  • the method further includes:
  • the identification information is transmitted, and the identification information indicates whether the data is modulated by the constellation point modulation symbol of the modulation mode.
  • the identification information can be regarded as the information that identifies the data modulation method. Based on the identification information, it can be determined whether the encoded data adopts the constellation point modulation symbol modulation of the modulation method of the present application.
  • the content of the identification information is not limited, as long as the receiving end can identify it.
  • the data modulation method provided in the present application will be exemplarily described below.
  • the data modulation method provided in the present application can be regarded as a low peak-to-average ratio hierarchical modulation method that suppresses phase noise.
  • the high-frequency scene is one of the important scenes of the future fifth-generation mobile communication (Beyond 5th Generation, B5G) or sixth-generation mobile communication (6th Generation, 6G).
  • B5G Beyond 5th Generation
  • 6G sixth-generation mobile communication
  • phase noise is relatively large, even if the phase compensation is done at the receiving end, a lot of phase noise will remain.
  • the Doppler frequency shift is relatively large in the high frequency scene, even if the frequency offset compensation is done at the receiving end, some phase deviation will remain in the data symbol.
  • the phase noise will be greater. It is necessary to consider how to suppress the influence of phase noise without affecting the system's spectrum efficiency. Therefore, it is necessary to design a new modulation scheme to solve this problem.
  • the path loss and shadow attenuation are relatively large, so the signal-to-noise ratio in some areas at the edge of the cell will be very low.
  • the efficiency of the power amplifier (PA) at high frequencies is relatively low.
  • the peak-to-average ratio (Peak-to-Average Ratio) of the UE transmitted signal is required.
  • Average Power Ratio, PAPR is relatively low.
  • the massive machine type of communication (Massive Machine Type of Communication, mMTC) scenario is also one of the important scenarios for B5G or 6G in the future.
  • mMTC massive Machine Type of Communication
  • some terminal devices hope to greatly save battery power consumption. Therefore, in order to improve the PA efficiency of the terminal, the peak-to-average ratio of the UE transmitted signal is required to be lower than the PAPR.
  • phase tracking reference signal Phase Tracing Reference Signal
  • DFT-s-OFDM discrete Fourier Transform-Spread Orthogonal Frequency Division Multiplexing
  • phase noise of the high frequency scene is relatively high, and a well-designed modulation scheme is required to suppress the influence of the phase noise.
  • a well-designed modulation scheme is required to suppress the influence of the phase noise.
  • high-frequency scenes and mMTC scenes require signals with a lower peak-to-average ratio PAPR, so it is also necessary to design a low peak-to-average ratio modulation scheme.
  • This application discloses a data modulation method, including:
  • the data includes at least two coded data blocks, wherein the coded data block 1, that is, the bit data of the first data block uses the ⁇ S1(k ) ⁇ is modulated, and data block 2 is coded, that is, the bit data of the second data block is modulated using the ⁇ S2(m) ⁇ .
  • the modulated data symbols are transmitted on physical resources.
  • the ⁇ S1(k) ⁇ is a group of ⁇ /2BPSK modulation symbols.
  • Use the constellation point modulation symbol ⁇ S(n) ⁇ to modulate data including: the ⁇ S(n) ⁇ can be divided into two subgroups, each subgroup contains N/2 constellation point modulation symbols, which are alternately used Two subgroups of modulated data.
  • the ⁇ S1(k) ⁇ can be divided into two subgroups, each subgroup contains K/2 constellation point modulation symbols, and these two subgroups are alternately used to modulate the bit data of the coded data block 1.
  • the maximum modulus value is smaller than the maximum modulus value in ⁇ S1(k) ⁇ .
  • the maximum modulus value is smaller than the minimum modulus value in ⁇ S1(k) ⁇ .
  • the maximum modulus value is less than half of the minimum modulus value in ⁇ S1(k) ⁇ .
  • the bit data of the coded data block 1 is control information data (data after the control information is coded, that is, the coded control information).
  • the control information data is control information data of a single user; the control information data is control information data of multiple users.
  • the bit data of the coded data block 1 is data of a single user (in other words, the bit data of the coded data block 1 is sent to a single user).
  • the single user is a user with lower capabilities, that is, a user with a lower UE Category; or the single user is a user with a relatively poor transmission condition.
  • the two coded data blocks are data of the same user.
  • the two coded data blocks are data of different users.
  • the modulated data symbol that is, the modulated data is transmitted on physical resources, including that the data symbol is directly transmitted in the time domain.
  • the data symbols are filtered, digital-to-analog conversion, etc., and then transmitted on the radio frequency link.
  • the transmission of the modulated data symbols on physical resources includes that the data symbols undergo discrete Fourier transform (Discrete Fourier Transform, DFT), and Inverse Discrete Fourier Transform (Inverse Discrete Fourier Transform). , IDFT), digital-to-analog conversion, etc., and then transmit on the radio frequency link.
  • DFT discrete Fourier Transform
  • IDFT Inverse Discrete Fourier Transform
  • IDFT digital-to-analog conversion
  • one bit of control information is used to indicate whether the modulated data symbol is hierarchical modulation, that is, the constellation point modulation symbol group ⁇ S(n) ⁇ is used for modulation.
  • the identification information is sent in radio resource control (Radio Resource Control, RRC) signaling, or sent in a downlink control channel.
  • RRC Radio Resource Control
  • constellation point modulation symbol group ⁇ S(n) ⁇ to modulate data
  • the data includes at least two coded data blocks, wherein the bit data of coded data block 1 is modulated using the ⁇ S1(k) ⁇ , and the data is coded
  • the bit data of data block 2 is modulated using the ⁇ S2(m) ⁇ .
  • the advantage of this is that users with a lower UE Category can use ⁇ S1(k) ⁇ for modulation, which can have better demodulation performance (it can adapt to lower signal-to-noise ratio and resist higher phase noise) ; Or the control information can be modulated using ⁇ S1(k) ⁇ to ensure lower bit error rate performance of the control information; users with better conditions can use ⁇ S2(m) ⁇ for modulation, which can improve the transmission of the system efficient.
  • the ⁇ S1(k) ⁇ is a set of ⁇ /2BPSK modulation symbols.
  • the advantage of this is that users with lower UE Category can use ⁇ S1(k) ⁇ for modulation, which can have better demodulation performance (Can adapt to lower signal-to-noise ratio and resist higher phase noise). And it can make the data signal modulated by ⁇ S(n) ⁇ have a low peak-to-average ratio PAPR.
  • the advantage of this is that the ⁇ S(n) ⁇ modulated data signal With a low peak-to-average ratio PAPR, the data modulated using ⁇ S1(k) ⁇ can better resist higher phase noise.
  • the maximum modulus value is smaller than the maximum modulus value in ⁇ S1(k) ⁇ .
  • the advantage of this is that the ⁇ S(n) ⁇ modulated data signal has a low peak-to-average ratio PAPR, and the data modulated using ⁇ S1(k) ⁇ can better resist higher phase noise.
  • FIG. 1a is a schematic diagram of constellation point modulation symbols of a combined modulation method provided by an embodiment of the application. See FIG. 1a, where ⁇ S1(k) ⁇ is a set of ⁇ /2BPSK modulation symbols, where odd numbers are The modulation symbols of bits are in a three-quadrant, and the modulation symbols of even-numbered bits are in the second and fourth quadrants. That is to say, the ⁇ S1(k) ⁇ can be divided into two subgroups, and each subgroup contains K/2 constellation point modulation symbol.
  • ⁇ S2(m) ⁇ is the BPSK modulation symbol on the real axis, and the maximum modulus value in ⁇ S2(m) ⁇ is half of the maximum modulus value in ⁇ S1(k) ⁇ .
  • the constellation point expression of ⁇ S(n) ⁇ can be obtained.
  • the ⁇ S(n) ⁇ constellation point the odd-numbered modulation symbols are in a three-quadrant, and the even-numbered modulation symbols are in the second or fourth quadrant.
  • the ⁇ S(n) ⁇ can be divided into two subgroups, each subgroup contains N/2 constellation point modulation symbols, and these two subgroups are used alternately to modulate data.
  • FIG. 1b is a schematic diagram of constellation point modulation symbols of another combined modulation method provided by an embodiment of the application. See FIG. 1b, where ⁇ S1(k) ⁇ is a set of ⁇ /2BPSK modulation symbols, where Odd-numbered modulation symbols are in a three-quadrant, even-numbered modulation symbols are in two or four quadrants, ⁇ S2(m) ⁇ is the BPSK modulation symbol on the imaginary axis, and the maximum modulus value in ⁇ S2(m) ⁇ is ⁇ S1 (k) ⁇ is half of the maximum modulus value.
  • the constellation point expression of ⁇ S(n) ⁇ can be obtained.
  • the odd-numbered modulation symbols are in a three-quadrant, and the even-numbered modulation symbols are in the second or fourth quadrant.
  • Fig. 1c is a schematic diagram of constellation point modulation symbols of another combined modulation method provided by an embodiment of the application. See Fig. 1c, where ⁇ S1(k) ⁇ is a set of ⁇ /2BPSK modulation symbols, where Odd-numbered modulation symbols are in a three-quadrant, even-numbered modulation symbols are in two or four quadrants, ⁇ S2(m) ⁇ is a QPSK modulation symbol, and the maximum modulus value in ⁇ S2(m) ⁇ is ⁇ S1(k) ⁇ Half of the maximum modulus value.
  • the constellation point expression of ⁇ S(n) ⁇ can be obtained.
  • the odd-numbered modulation symbols are in a three-quadrant, and the even-numbered modulation symbols are in the second or fourth quadrant.
  • Fig. 1d is a schematic diagram of constellation point modulation symbols of another combined modulation method provided by an embodiment of the application. See Fig. 1d, where ⁇ S1(k) ⁇ is a set of QPSK modulation symbols, ⁇ S2( m) ⁇ is also a QPSK modulation symbol, and the maximum modulus value in ⁇ S2(m) ⁇ is half of the maximum modulus value in ⁇ S1(k) ⁇ .
  • FIG. 1e is a schematic diagram of constellation point modulation symbols of another combined modulation method provided by an embodiment of this application. See FIG. 1e, where ⁇ S1(k) ⁇ is a set of ⁇ /2BPSK modulation symbols, where The odd-numbered modulation symbol is in a three-quadrant, and the even-numbered modulation symbol is in the second or fourth quadrant. ⁇ S2(m) ⁇ is a special modulation symbol. The distance of OP in the constellation diagram is ⁇ S1 (k) ⁇ in the maximum modulus value.
  • the constellation point expression of ⁇ S(n) ⁇ can be obtained.
  • the odd-numbered modulation symbol is in a three-quadrant, and the even-numbered modulation symbol is in the second or fourth quadrant.
  • the constellation points of the modulation scheme can be composed of 2 circular rings, and each circular ring has 8 constellation points.
  • Figure 1f is a schematic diagram of constellation point modulation symbols and bit mapping of a combined modulation method provided by an embodiment of the application. See Figure 1f, where ⁇ S1(k) ⁇ is a set of ⁇ /2BPSK modulation symbols, and the modulation of odd bits is The symbol is in a three-quadrant, the even-numbered modulation symbol is in the second or fourth quadrant, ⁇ S2(m) ⁇ is the BPSK modulation symbol on the real axis, and the maximum modulus value in ⁇ S2(m) ⁇ is ⁇ S1(k) ⁇ Half of the maximum modulus value in.
  • a set of binary bit data sequence is composed of two encoded data blocks, namely the encoded data block data1 and the encoded data block data2.
  • the data of the two data blocks are:
  • ⁇ S(n) ⁇ to modulate the data sequence, wherein the data bits of the coded data block 1 are modulated by ⁇ S1(k) ⁇ , and the data bits of the coded data block 2 are modulated by ⁇ S2(m).
  • ⁇ S1(k) ⁇ and ⁇ S2(m) ⁇ are both BPSK-type modulations, and the modulation order is 1, so each modulation symbol S(n) can represent a bit of the coded data block 1. And one bit of coded data block 2.
  • the bit combination at odd positions uses (d1, d2, d3, d4) in the constellation point ⁇ S(n) ⁇ for modulation, and the bit combination at even positions uses (in the constellation point ⁇ S(n) ⁇ ).
  • d5, d6, d7, d8) for modulation uses (in the constellation point ⁇ S(n) ⁇ ).
  • the modulation symbol of the data sequence data3 modulated by ⁇ S(n) ⁇ is: [d4, d5, d3, d7, d2, d5, d1, d7].
  • the data modulation method provided in this application can be executed by a device, such as a transmitter.
  • a set of binary bit data sequence is coded and constellation modulation, that is, the one data modulation method generates modulated data symbols.
  • the modulated data symbols are subjected to DFT, resource mapping, IDFT, digital-to-analog conversion, etc., and then the radio frequency Transmission on the link.
  • FIG. 2 is a schematic structural diagram of a data modulation device provided in an embodiment of the application.
  • the device can be integrated on the device. See FIG. 2.
  • the device includes: a configuration module 21, In order to configure a modulation method, the constellation point modulation symbols of the modulation method are composed of a first group of constellation point modulation symbols and a second group of constellation point modulation symbols; the modulation module 22 is set to use the modulation method to modulate data,
  • the data includes a first data block and a second data block; the first data block is modulated by the first set of constellation point modulation symbols, and the second data block is modulated by the second set of constellation point modulation symbols.
  • the data modulation device provided in this embodiment is used to implement the data modulation method in the embodiment of this application.
  • the implementation principle and technical effect of the data modulation device provided in this embodiment are similar to the data modulation method in the embodiment shown in this application, and will not be repeated here. Go into details.
  • the configuration module 21 is specifically set as follows:
  • a constellation point modulation symbol of the modulation mode is combined.
  • the constellation point modulation symbol of the modulation mode is combined by the following formula:
  • S(n) is a modulation symbol in the constellation point modulation symbol group ⁇ S(n) ⁇ of the modulation method
  • S1(k) is one of the first group of constellation point modulation symbols ⁇ S1(k) ⁇ Modulation symbol
  • ⁇ (S1(k)) is the phase of S1(k)
  • S2(m) is a modulation symbol in the second group of constellation point modulation symbols ⁇ S2(m) ⁇
  • k 0, 1,... ., K-1
  • m 0, 1,..., M-1
  • n 0, 1,..., N-1
  • N is an even integer greater than or equal to 4
  • P is a constant.
  • the first group of constellation point modulation symbols is a group of binary phase shift keying BPSK modulation symbols, and the phase difference between adjacent modulation symbols is ⁇ /2.
  • the modulation module 22 is specifically configured as follows:
  • the modulation module 22 is specifically configured as follows:
  • the maximum modulus value among the modulation symbols included in the second group of constellation point modulation symbols is less than one of the following: the maximum modulus value in the first group of constellation point modulation symbols; the first group of constellation points The smallest modulus value in the point modulation symbol; half of the smallest modulus value in the first group of constellation point modulation symbols.
  • the data uses N per log 2 or every log 2 (N/2) binary bit data sequence as a unit, and constellation point modulation symbols of the modulation mode are used for mapping modulation, and the binary The bit data sequence is the encoded data sequence.
  • bit data of the first data block is data of a single user whose capability is lower than the capability threshold or the transmission condition is lower than the transmission threshold.
  • bit data of the first data block is coded control information of a single user or multiple users.
  • the first data block and the second data block are data of the same user or data of different users.
  • the device further includes: a first transmission module configured to:
  • the first transmission module is specifically set as:
  • the device further includes: a second transmission module configured to:
  • the identification information is transmitted, and the identification information indicates whether the data is modulated by the constellation point modulation symbol of the modulation mode.
  • FIG. 3 is a schematic structural diagram of a device provided in an embodiment of the present application.
  • the device provided by the present application includes one or more processors 31 and a storage device 32; there may be one or more processors 31 in the device, and one processor 31 is taken as an example in FIG. 3;
  • the storage device 32 is configured to store one or more programs; the one or more programs are executed by the one or more processors 31, so that the one or more processors 31 implement Methods.
  • the equipment also includes: a communication device 33, an input device 34, and an output device 35.
  • the processor 31, the storage device 32, the communication device 33, the input device 34, and the output device 35 in the device may be connected by a bus or other means.
  • a bus the connection by a bus is taken as an example.
  • the input device 34 can be used to receive input digital or character information, and generate key signal input related to user settings and function control of the device.
  • the output device 35 may include a display device such as a display screen.
  • the communication device 33 may include a receiver and a transmitter.
  • the communication device 33 is configured to perform information transceiving and communication under the control of the processor 31.
  • Information includes but is not limited to modulated data.
  • the storage device 32 can be configured to store software programs, computer-executable programs, and modules, such as the program instructions/modules corresponding to the methods described in the embodiments of the present application (for example, the configuration module in the data modulation device). 21 and modulation module 22).
  • the storage device 32 may include a storage program area and a storage data area.
  • the storage program area may store an operating system and an application program required by at least one function; the storage data area may store data created according to the use of the device, and the like.
  • the storage device 32 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, a flash memory device, or other non-volatile solid-state storage devices.
  • the storage device 32 may further include a memory remotely provided with respect to the processor 31, and these remote memories may be connected to the device through a network. Examples of the aforementioned networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.

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Abstract

本申请公开了一种数据调制方法、装置、设备及存储介质，该数据调制方法包括：配置一种调制方式，所述调制方式的星座点调制符号由第一组星座点调制符号和第二组星座点调制符号组合而成；使用所述调制方式调制数据，所述数据包括第一数据块和第二数据块；所述第一数据块由所述第一组星座点调制符号调制，所述第二数据块由所述第二组星座点调制符号调制。

Description

数据调制方法、装置、设备及存储介质
本申请要求在2020年06月22日提交中国专利局、申请号为202010576322.6的中国专利申请的优先权，该申请的全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术领域，例如涉及一种数据调制方法、装置、设备及存储介质。
背景技术
高频场景中相位噪声比较大，即使接收端做了相位补偿，也会残留很多的相位噪声。同时，高频场景中多普勒频移比较大，即使接收端做了频偏补偿，数据符号里也会残留一些相位偏差。特别是对于一些低级终端，由于器件成本低，性能差，因此相位噪声会更大。
故，如何在不影响系统效率的情况下，抑制相位噪声是当前亟待解决的技术问题。
发明内容
本申请提供一种数据调制方法、装置、设备及存储介质，有效的抑制了相位噪声。
第一方面，本申请提供了一种数据调制方法，包括：
配置一种调制方式，所述调制方式的星座点调制符号由第一组星座点调制符号和第二组星座点调制符号组合而成；
使用所述调制方式调制数据，所述数据包括第一数据块和第二数据块；所述第一数据块由所述第一组星座点调制符号调制，所述第二数据块由所述第二组星座点调制符号调制。
第二方面，本申请提供了一种数据调制装置，包括：
配置模块，设置为配置一种调制方式，所述调制方式的星座点调制符号由第一组星座点调制符号和第二组星座点调制符号组合而成；
调制模块，设置为使用所述调制方式调制数据，所述数据包括第一数据块和第二数据块；所述第一数据块由所述第一组星座点调制符号调制，所述第二数据块由所述第二组星座点调制符号调制。
第三方面，本申请提供了一种设备，包括：
一个或多个处理器；
存储装置，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的任意一种方法。
第四方面，本申请提供了一种存储介质，所述存储介质存储有计算机程序，所述计算机程序被处理器执行时实现本申请实施例中的任意一种方法。
附图说明
图1为本申请实施例提供的一种数据调制方法的流程示意图；
图1a为本申请实施例提供的一种组合调制方法的星座点调制符号的示意图；
图1b为本申请实施例提供的又一种组合调制方法的星座点调制符号的示意图；
图1c为本申请实施例提供的又一种组合调制方法的星座点调制符号的示意图；
图1d为本申请实施例提供的又一种组合调制方法的星座点调制符号的示意图；
图1e为本申请实施例提供的又一种组合调制方法的星座点调制符号的示意图；
图1f为本申请实施例提供的一种组合调制方法的星座点调制符号和比特映射的示意图；
图2为本申请实施例提供的一种数据调制装置的结构示意图；
图3为本申请实施例提供的一种设备的结构示意图。
具体实施方式
下文中将结合附图对本申请的实施例进行详细说明。需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互任意组合。
在附图的流程图示出的步骤可以在诸如一组计算机可执行指令的计算机系 统中执行。并且，虽然在流程图中示出了逻辑顺序，但是在某些情况下，可以以不同于此处的顺序执行所示出或描述的步骤。
在一个示例性实施方式中，图1为本申请实施例提供的一种数据调制方法的流程示意图，该方法可以适用于进行数字调制的情况，该方法可以由数据调制装置执行，该装置可以由软件和/或硬件实现，并集成在设备，即终端设备上，设备可以涵盖任何适合类型的用户设备和基站。
如图1所示，本申请提供的一种数据调制方法，包括如下步骤。
S110、配置一种调制方式，所述调制方式的星座点调制符号由第一组星座点调制符号和第二组星座点调制符号组合而成。
本申请在进行数据调制时可以先配置一种调制方式，该调制方式的星座点调制符号可以由第一组星座点调制符号和第二组星座点调制符号组合而成。第一组星座点调制符号和第二组星座点调制符号可以具有不同的特性。第一组星座点调制符号和第二组星座点调制符号可以用于调制不同的数据块，以降低相位噪声对某个数据块解调性能的影响。第一组星座点用于调制能力低于能力阈值或传输条件低于传输阈值的用户的数据。
第一组星座点调制符号包括但不限于一组二进制相移键控(Binary Phase Shift Keying，BPSK)调制符号，相邻调制符号间的相位差为π/2或一组正交相移键控(Quadrature Phase Shift Keying，QPSK)调制符号。第二组星座点调制符号可以为BPSK调制符号或任意调制符号。
本步骤不对如何基于第一组星座点调制符号和第二组星座点调制符号组合形成调制方法的星座点调制符号的手段进行限定，只要能够保证在基于调制方式的星座点调制符号对数据进行调制时，第一组星座点调制符号和第二组星座点调制符号分别调制不同数据块，以降低相位噪声对某个数据块解调性能的影响即可。
本步骤调制方式的配置可以包括基于第一组星座点调制符号和第二组星座点调制符号组合而成的调制方式的星座点调制符号，确定完该调制方式的星座点调制符号后，可以基于该星座点调制符号调制数据。
S120、使用所述调制方式调制数据，所述数据包括第一数据块和第二数据块；所述第一数据块由所述第一组星座点调制符号调制，所述第二数据块由所述第二组星座点调制符号调制。
第一数据块和第二数据块可以基于用户的能力或传输条件划分，如能力低于能力阈值或传输条件低于传输阈值的单个用户的数据为第一数据块，能力高于能力阈值或传输条件高于传输阈值的单个用户的数据为第二数据块。能力等 于能力阈值或传输条件等于传输阈值的单个用户的数据可以为第一数据块，也可以为第二数据块。第一数据块和第二数据块也可以为同一个用户的数据。
在一个实施例中，第一数据块可以为编码后的控制信息，即控制信息数据。所述控制信息数据可以为单个用户的控制信息数据，也可以为多个用户的控制信息数据。第二数据块可以为用户的业务数据。第一组星座点调制符号可以调制编码后的控制信息，第二组星座点调制符号可以调制用户的业务数据。
在配置完调制方式后，本步骤可以基于配置后的调制方式对数据进行调制，在调制时，第一数据块由第一组星座点调制符号调制，第二数据块由第二组星座点调制符号调制，从而实现分层调制，以降低相位噪声对第一数据块解调性能的影响。
本步骤可以基于映射的方式实现第一数据块由第一组星座点调制符号调制，第二数据块由第二组星座点调制符号调制。如将数据对应的比特与调制方式一一映射，以实现第一数据块的比特信息是由不同的第一组星座点调制符号区分的，第二数据块的比特信息由不同第二组星座点调制符号区分的。
数据可以包括单个用户的数据，也可以包括至少一个用户的数据。数据的内容不作限定，可以为编码后的控制信息，也可以为用户的数据。
本申请提供的一种数据调制方法，首先配置一种调制方式，所述调制方式的星座点调制符号由第一组星座点调制符号和第二组星座点调制符号组合而成；然后使用所述调制方式调制数据，所述数据包括第一数据块和第二数据块；所述第一数据块由所述第一组星座点调制符号调制，所述第二数据块由所述第二组星座点调制符号调制。利用该方法在数据解调时有效的抑制了相位噪声。
在上述实施例的基础上，提出了上述实施例的变型实施例，在此需要说明的是，为了使描述简要，在变型实施例中仅描述与上述实施例的不同之处。
在一个实施例中，所述调制方式的星座点调制符号由第一组星座点调制符号和第二组星座点调制符号组合而成，包括：
基于第一组星座点调制符号的相位调整第二组星座点调制符号的相位；
基于所述第一组星座点调制符号与调整后的第二组星座点调制符号，组合而成所述调制方式的星座点调制符号。
在确定调制方式的星座点调制符号时，可以首先基于第一组星座点调制符号的相位调整第二星座点调制符号的相位，然后基于第一组星座点调制符号和调整后的第二星座点调制符号组合而成调制方式的星座点调制符号。在组合形成调制方式的星座点调制符号时，可以结合功率归一化因子组合形成星座点调制符号。
首先调整第二星座点调制符号的相位的好处是，接收端在解调第一组星座点调制符号时，受到第二星座点调制符号的影响比较小，也就是说，可以增强第一数据块抑制相位噪声的能力。
在一个实施例中，通过如下公式组合而成所述调制方式的星座点调制符号：
S(n)＝P(S1(k)+e jθ(S1(k))S2(m))；
其中，S(n)为所述调制方式的星座点调制符号组{S(n)}中的一个调制符号，S1(k)为第一组星座点调制符号{S1(k)}中的一个调制符号，θ(S1(k))为S1(k)的相位；S2(m)为第二组星座点调制符号{S2(m)}中的一个调制符号；k＝0，1，...，K-1；m＝0，1，...，M-1；n＝0，1，...，N-1；N为大于或等于4的偶整数，K<N，M<N；P为常数。P为功率归一化因子。
在一个实施例中，所述第一组星座点调制符号为一组二进制相移键控BPSK调制符号，相邻调制符号间的相位差为π/2。
在一个实施例中，所述第一数据块由所述第一组星座点调制符号调制，包括：
将第一组星座点调制符号划分为两个子组；
交替使用每个子组调制第一数据块。
第一组星座点调制符号分组的个数可以不作限定，如分为至少两组。如将第一组星座点调制符号基于比特位数进行奇偶分组，分为奇数位组和偶数位组。然后基于分组后的每组星座点调制符号调制第一数据块，以实现映射调制。如第一数据块的奇数位由第一组星座点调制符号的奇数位组的调制符号调制；偶数位由第一组星座点调制符号的偶数位组的调制符号调制。
在一个实施例中，所述使用所述调制方式调制数据，包括：
将所述调制方式的星座点调制符号划分为两个子组；
交替使用每个子组调制数据。
调制方式的星座点调制符号的分组方式及对应的调制手段可以参见第一组星座点调制符号的分组方式及对应的调制手段，此处不作赘述。
在一个实施例中，所述第二组星座点调制符号所包括的调制符号中最大模值小于如下之一：所述第一组星座点调制符号中的最大模值；所述第一组星座点调制符号中的最小模值；所述第一组星座点调制符号中的最小模值的一半。
本实施例通过对第二组星座点调制符号中最大模值与第一组星座点调制符号中的最大模值的限定可以进一步降低调制后的数据的峰均比，降低第一数据块解调时受相位噪声的影响。
在一个实施例中，所述数据以每log 2 N个或者每log 2 (N/2)个二进制比特数据序列为一个单位，采用所述调制方式的星座点调制符号进行映射调制，所述二进制比特数据序列为经过编码之后的数据序列。
本步骤为了实现第一数据块由第一组星座点调制符号调制，第二数据块由第二星座点调制符号调制，可以将数据进行划分，然后采用调制方式的星座点调制符号进行映射调制，如将数据中的比特一一映射至对应的第一组星座点调制符号和第二组星座点调制符号进行调制。
在对数据进行划分时，可以每log 2 N个或者每log 2 (N/2)个二进制比特数据序列为一个单位。映射调制时的对应关系可以基于每个单位包括的二进制比特数据序列的个数确定，此处不作限定。如2比特为一个单位，第一比特数据序列对应第一数据块，第二比特数据序列对应第二数据块，则可以将第一比特数据序列采用第一组星座点调制符号进行调制，将第二比特数据序列采用第二星座点调制符号进行调制，以实现映射调制。
在一个实施例中，所述第一数据块的比特数据为能力低于能力阈值或传输条件低于传输阈值的单个用户的数据。
本申请不限定能力阈值和传输阈值的具体数值，本领域技术人员可以根据实际情况进行设定。
能力低于能力阈值或传输条件低于传输阈值的用户的数据可以由第一组星座点调制符号调制，使得该用户数据在解调时可以更好的抵抗相位噪声的影响。传输条件的具体内容不作限定，可以基于实际情况确定，如传输条件基于能够决定传输性能的任一条件。能力的确定不作限定，本领域技术人员可以根据实际需求自行设定，如基于Category等级确定能力。
在一个实施例中，所述第一数据块的比特数据为单个用户或多个用户的编码后的控制信息。
此处不对编码方式进行限定。第一数据块可以为编码后的控制信息。
在一个实施例中，所述第一数据块和所述第二数据块为同一用户的数据或不同用户的数据。
在一个实施例中，该方法还包括：
在物理资源上传输调制后的数据。
采用调制方式的星座点调制符号调制数据后，可以在物理资源上传输调制后的数据。物理资源不作限定。只要接收端能够接收到调制后的数据即可。
在一个实施例中，所述在物理资源上传输调制后的数据，包括：
在时域上传输调制后的数据；或者，调制后的数据经过处理后在射频链路上传输，其中，处理的手段包括滤波和数模转换；或者，处理的手段包括离散傅里叶变换DFT、离散傅里叶反变换IDFT和数模转换。
在一个实施例中，该方法，还包括：
传输标识信息，所述标识信息指示数据是否采用所述调制方式的星座点调制符号调制。
标识信息可以认为是标识数据调制方式的信息。基于该标识信息可以确定编码后的数据是否采用本申请调制方式的星座点调制符号调制。标识信息的内容不作限定，只要接收端能够识别即可。
以下对本申请提供的数据调制方法进行示例性的说明，本申请提供的数据调制方法可以认为是一种抑制相噪的低峰均比分层调制方法。
目前，高频场景是未来第五代移动通信(Beyond 5th Generation，B5G)或第六代移动通信(6th Generation，6G)的一个重要场景之一。
高频场景中相位噪声比较大，即使接收端做了相位补偿，也会残留很多的相位噪声。同时，高频场景中多普勒频移比较大，即使接收端做了频偏补偿，数据符号里也会残留一些相位偏差。特别是对于一些低级终端，由于器件成本低，性能差，因此相位噪声会更大，需要考虑在不影响系统频谱效率的情况下，如何来抑制相位噪声的影响，因此需要设计新的调制方案来解决这个问题。
高频场景中，路损和阴影衰弱比较大，因此在小区边缘有些区域的信噪比会非常低。而且高频时放大器(Power Amplifier，PA)的效率比较低，为了提高信噪比，同时也要节省用户设备(User Equipment，UE)电池的功耗，就需要UE发射信号的峰均比(Peak Average Power Ratio，PAPR)比较低。
海量机器类通信(Massive Machine Type of Communication，mMTC)场景也是未来B5G或6G的一个重要场景之一。在mMTC场景中，有些终端设备希望大幅节省电池功耗，因此，为了提高该终端的PA效率，就需要UE发射信号的峰均比PAPR比较低。
现在第五代移动通信(Five Generation，5G)新无线接入技术(New Radio，NR)标准里，虽然设计有相位跟踪参考信号(Phase Tracing Reference Signal，PTRS)，但仍然很难满足高频场景中需要准确估计大相位噪声的需求；虽然离散傅里叶变换扩频正交频分复用(Discrete Fourier Transform-Spread Orthogonal Frequency Division Multiplexing，DFT-s-OFDM)信号的峰均比比较低，但对于调制阶数大于1的调制方式，其信号的PAPR仍然比较高。因此有必要设计进一步降低PAPR的高阶调制技术。即高频场景的相位噪声比较高，需要设计好的调 制方案来抑制相位噪声的影响。特别是对于一些低级终端，需要解决在不影响系统效率的情况下，如何来抑制相位噪声的影响。而且高频场景和mMTC场景需要更低的峰均比PAPR的信号，因此也需要设计低峰均比的调制方案。
本申请公开了一种数据调制方法，包括：
一组星座点调制符号{S(n)}，n＝0，1，...，N-1，N为大于或等于4的偶整数，S(n)满足S(n)＝P(S1(k)+e jθ(S1(k))S2(m))，其中，S1(k)为一组星座点调制符号{S1(k)}中的一个调制符号，θ(S1(k))为S1(k)的相位；S2(m)为一组星座点调制符号{S2(m)}中的一个调制符号，k＝0，1，...，K-1，m＝0，1，...，M-1，K<N，M<N，P为常数。使用所述星座点调制符号组{S(n)}调制数据，所述数据至少包含2个编码数据块，其中，编码数据块1，即第一数据块的比特数据使用所述{S1(k)}进行调制，编码数据块2，即第二数据块的比特数据使用所述{S2(m)}进行调制。调制后的数据符号在物理资源上传输。
其中，所述{S1(k)}为一组π/2BPSK调制符号。使用所述星座点调制符号{S(n)}调制数据，包括：所述{S(n)}可以分为两个子组，每个子组包含有N/2个星座点调制符号，交替使用这两个子组调制数据。所述{S1(k)}可以分为两个子组，每个子组包含有K/2个星座点调制符号，交替使用这两个子组调制所述编码数据块1的比特数据。所述{S2(m)}的M个调制符号中，最大模值小于{S1(k)}中的最大模值。所述{S2(m)}的M个调制符号中，最大模值小于{S1(k)}中的最小模值。所述{S2(m)}的M个调制符号中，最大模值小于{S1(k)}中的最小模值的一半。使用所述星座点调制符号组{S(n)}调制数据，包括，每log 2 N个或者每log 2 (N/2)个二进制比特数据序列为一个单位，采用星座点调制符号组{S(n)}进行映射调制。所述二进制比特数据序列为经过编码之后的数据序列。所述编码之后的数据序列至少包含2个编码数据块。
在一个实施例中，所述编码数据块1的比特数据为控制信息数据(控制信息经过编码之后的数据，即编码后的控制信息)。所述控制信息数据为单个用户的控制信息数据；所述控制信息数据为多个用户的控制信息数据。
在一个实施例中，所述编码数据块1的比特数据为单个用户的数据(或者说，所述编码数据块1的比特数据是发送给单个用户的)。进一步地，所述单个用户为能力较低的用户，即UE Category等级比较低的用户；或者所述单个用户为传输条件比较差的用户。
在一个实施例中，2个编码数据块为同一个用户的数据。
在一个实施例中，2个编码数据块为不同用户的数据。
在一个实施例中，所述调制后的数据符号，即调制后的数据在物理资源上 传输，包括，所述数据符号直接在时域上传输。或者，所述数据符号经过滤波、数模转换等，然后在射频链路上传输。
在一个实施例中，所述调制后的数据符号在物理资源上传输，包括，所述数据符号经过离散傅里叶变换(Discrete Fourier Transform，DFT)、离散傅里叶反变换(Inverse Discrete Fourier Transform，IDFT)、数模转换等，然后在射频链路上传输。
在一个实施例中，用一个比特的控制信息，即标识信息表示所述调制后的数据符号是否为分层调制，即采用所述星座点调制符号组{S(n)}调制。
在一个实施例中，所述标识信息在无线资源控制(Radio Resource Control，RRC)信令中发送，或者在下行控制信道中发送。
使用所述星座点调制符号组{S(n)}调制数据，所述数据至少包含2个编码数据块，其中，编码数据块1的比特数据使用所述{S1(k)}进行调制，编码数据块2的比特数据使用所述{S2(m)}进行调制。这样做的好处是，UE Category等级比较低的用户可以使用{S1(k)}进行调制，这样可以有更好的解调性能(可以适应更低的信噪比和抵抗更高的相位噪声)；或者控制信息可以使用{S1(k)}进行调制，这样保证控制信息更低的误码率性能；条件比较好的用户就可以使用{S2(m)}进行调制，这样可以提高系统的传输效率。
所述{S1(k)}为一组π/2BPSK调制符号，这样做的好处是，UE Category等级比较低的用户可以使用{S1(k)}进行调制，这样可以有更好的解调性能(可以适应更低的信噪比和抵抗更高的相位噪声)。而且可以使得使用{S(n)}调制的数据信号具有低的峰均比PAPR。
所述S(n)满足S(n)＝P(S1(k)+e jθ(S1(k))S2(m))，这样做的好处是，使得{S(n)}调制的数据信号具有低的峰均比PAPR，可以使得使用{S1(k)}进行调制的数据可以更好地抵抗更高的相位噪声。
所述{S2(m)}的M个调制符号中，最大模值小于{S1(k)}中的最大模值。这样做的好处是，使得{S(n)}调制的数据信号具有低的峰均比PAPR，可以使得使用{S1(k)}进行调制的数据可以更好地抵抗更高的相位噪声。
在一个实施例中，图1a为本申请实施例提供的一种组合调制方法的星座点调制符号的示意图，参见图1a，其中{S1(k)}为一组π/2BPSK调制符号，其中奇数位的调制符号在一三象限，偶数位的调制符号在二四象限，也就是说，所述{S1(k)}可以分为两个子组，每个子组包含有K/2个星座点调制符号。{S2(m)}为在实轴上的BPSK调制符号，且{S2(m)}中最大模值为{S1(k)}中的最大模值的一半。根据调制符号S(n)生成公式S(n)＝P(S1(k)+e jθ(S1(k))S2(m))，可以得到{S(n)} 的星座点表达式。其中N＝8，K＝4，M＝2。{S(n)}的星座点中奇数位的调制符号在一三象限，偶数位的调制符号在二四象限。也就是说，所述{S(n)}可以分为两个子组，每个子组包含有N/2个星座点调制符号，交替使用这两个子组调制数据。
在一个实施例中，图1b为本申请实施例提供的又一种组合调制方法的星座点调制符号的示意图，参见图1b，其中{S1(k)}为一组π/2BPSK调制符号，其中奇数位的调制符号在一三象限，偶数位的调制符号在二四象限，{S2(m)}为在虚数轴上的BPSK调制符号，且{S2(m)}中最大模值为{S1(k)}中的最大模值的一半。根据调制符号S(n)生成公式S(n)＝P(S1(k)+e jθ(S1(k))S2(m))，可以得到{S(n)}的星座点表达式。其中N＝8，K＝4，M＝2。{S(n)}的星座点中奇数位的调制符号在一三象限，偶数位的调制符号在二四象限。
在一个实施例中，图1c为本申请实施例提供的又一种组合调制方法的星座点调制符号的示意图，参见图1c，其中{S1(k)}为一组π/2BPSK调制符号，其中奇数位的调制符号在一三象限，偶数位的调制符号在二四象限，{S2(m)}为QPSK调制符号，且{S2(m)}中最大模值为{S1(k)}中的最大模值的一半。根据调制符号S(n)生成公式S(n)＝P(S1(k)+e jθ(S1(k))S2(m))，可以得到{S(n)}的星座点表达式。其中N＝16，K＝4，M＝4。{S(n)}的星座点中奇数位的调制符号在一三象限，偶数位的调制符号在二四象限。
在一个实施例中，图1d为本申请实施例提供的又一种组合调制方法的星座点调制符号的示意图，参见图1d，其中{S1(k)}为一组QPSK调制符号，{S2(m)}也为QPSK调制符号，且{S2(m)}中最大模值为{S1(k)}中的最大模值的一半。根据调制符号{S(n)}生成公式S(n)＝P(S1(k)+e jθ(S1(k))S2(m))，可以得到{S(n)}的星座点表达式。其中N＝16，K＝4，M＝4。
在一个实施例中，图1e为本申请实施例提供的又一种组合调制方法的星座点调制符号的示意图，参见图1e，其中{S1(k)}为一组π/2BPSK调制符号，其中奇数位的调制符号在一三象限，偶数位的调制符号在二四象限，{S2(m)}为一种特殊调制的调制符号，{S2(m)}星座图中OP的距离为{S1(k)}中的最大模值。根据调制符号S(n)生成公式S(n)＝P(S1(k)+e jθ(S1(k))S2(m))，可以得到{S(n)}的星座点表达式。其中N＝16，K＝4，M＝4。{S(n)}的星座点中奇数位的调制符号在一三象限，偶数位的调制符号在二四象限。可以看出，该调制方案的星座点可以由2个圆环组成，每个圆环上各有8个星座点。
图1f为本申请实施例提供的一种组合调制方法的星座点调制符号和比特映射的示意图，参见图1f，其中{S1(k)}为一组π/2BPSK调制符号，其中奇数位的调制符号在一三象限，偶数位的调制符号在二四象限，{S2(m)}为在实轴上的 BPSK调制符号，且{S2(m)}中最大模值为{S1(k)}中的最大模值的一半。根据调制符号S(n)生成公式S(n)＝P(S1(k)+e jθ(S1(k))S2(m))，可以得到{S(n)}的星座点表达式。其中N＝8，K＝4，M＝2。
假设一组二进制比特数据序列由两个编码后的数据块组成，分别为编码数据块data1和编码数据块data2。两个数据块的数据分别为：
data1＝01001110；
data2＝11000110；
使用{S(n)}调制数据序列，其中编码数据块1的数据比特采用{S1(k)}调制，编码数据块2的数据比特采用{S2(m)调制。本实施例中，{S1(k)}和{S2(m)}都是BPSK类型的调制，调制阶数都为1，因此每个调制符号S(n)可以表示编码数据块1的一个比特和编码数据块2的一个比特。可以将data1里每个比特与data2里每个比特依顺序组成data3，data3＝0111000010111100，data3中每2个比特组合为一个单位，使用{S(n)}调制，这样每个单位就调制成一个星座点S(n)。
本实施例中，奇数位置的比特组合使用星座点{S(n)}中的(d1，d2，d3，d4)进行调制，偶数位置的比特组合使用星座点{S(n)}中的(d5，d6，d7，d8)进行调制。根据这个调制规则，可以得到，数据序列data3采用{S(n)}调制后的调制符号为：[d4，d5，d3，d7，d2，d5，d1，d7]。
本申请提供的数据调制方法可以由设备执行，如发射端执行。一组二进制比特数据序列经过编码，星座调制，即所述一种数据调制方法生成调制后的数据符号，所述调制后的数据符号经过DFT、资源映射、IDFT、数模转换等，然后在射频链路上传输。
本申请还提供了一种数据调制装置，图2为本申请实施例提供的一种数据调制装置的结构示意图，该装置可以集成在设备上，参见图2，该装置包括：配置模块21，设置为配置一种调制方式，所述调制方式的星座点调制符号由第一组星座点调制符号和第二组星座点调制符号组合而成；调制模块22，设置为使用所述调制方式调制数据，所述数据包括第一数据块和第二数据块；所述第一数据块由所述第一组星座点调制符号调制，所述第二数据块由所述第二组星座点调制符号调制。
本实施例提供的数据调制装置用于实现本申请实施例的数据调制方法，本实施例提供的数据调制装置实现原理和技术效果与本申请所示实施例的数据调制方法类似，此处不再赘述。
在上述实施例的基础上，提出了上述实施例的变型实施例，在此需要说明的是，为了使描述简要，在变型实施例中仅描述与上述实施例的不同之处。
在一个实施例中，配置模块21，具体设置为：
基于第一组星座点调制符号的相位调整第二组星座点调制符号的相位；
基于所述第一组星座点调制符号与调整后的第二组星座点调制符号，组合而成所述调制方式的星座点调制符号。
在一个实施例中，通过如下公式组合而成所述调制方式的星座点调制符号：
S(n)＝P(S1(k)+e jθ(S1(k))S2(m))；
其中，S(n)为所述调制方式的星座点调制符号组{S(n)}中的一个调制符号，S1(k)为第一组星座点调制符号{S1(k)}中的一个调制符号，θ(S1(k))为S1(k)的相位；S2(m)为第二组星座点调制符号{S2(m)}中的一个调制符号；k＝0，1，...，K-1；m＝0，1，...，M-1；n＝0，1，...，N-1；N为大于或等于4的偶整数，K<N，M<N；P为常数。
在一个实施例中，所述第一组星座点调制符号为一组二进制相移键控BPSK调制符号，相邻调制符号间的相位差为π/2。
在一个实施例中，调制模块22，具体设置为：
将第一组星座点调制符号划分为两个子组；
交替使用每个子组调制第一数据块。
在一个实施例中，调制模块22，具体设置为：
将所述调制方式的星座点调制符号划分为两个子组；
交替使用每个子组调制数据。
在一个实施例中，所述第二组星座点调制符号所包括的调制符号中最大模值小于如下之一：所述第一组星座点调制符号中的最大模值；所述第一组星座点调制符号中的最小模值；所述第一组星座点调制符号中的最小模值的一半。
在一个实施例中，所述数据以每log 2N个或者每log 2(N/2)个二进制比特数据序列为一个单位，采用所述调制方式的星座点调制符号进行映射调制，所述二进制比特数据序列为经过编码之后的数据序列。
在一个实施例中，所述第一数据块的比特数据为能力低于能力阈值或传输条件低于传输阈值的单个用户的数据。
在一个实施例中，所述第一数据块的比特数据为单个用户或多个用户的编码后的控制信息。
在一个实施例中，所述第一数据块和所述第二数据块为同一用户的数据或不同用户的数据。
在一个实施例中，该装置还包括：第一传输模块，设置为：
在物理资源上传输调制后的数据。
在一个实施例中，第一传输模块，具体设置为：
在时域上传输调制后的数据；或者，调制后的数据经过处理后在射频链路上传输，其中，处理的手段包括滤波和数模转换；或者，处理的手段包括离散傅里叶变换DFT、离散傅里叶反变换IDFT和数模转换。
在一个实施例中，该装置还包括：第二传输模块，设置为：
传输标识信息，所述标识信息指示数据是否采用所述调制方式的星座点调制符号调制。
在一个示例性实施方式中，本申请实施例提供了一种设备，图3为本申请实施例提供的一种设备的结构示意图。如图3所示，本申请提供的设备，包括一个或多个处理器31和存储装置32；该设备中的处理器31可以是一个或多个，图3中以一个处理器31为例；存储装置32用于存储一个或多个程序；所述一个或多个程序被所述一个或多个处理器31执行，使得所述一个或多个处理器31实现如本申请实施例中所述的方法。
设备还包括：通信装置33、输入装置34和输出装置35。
设备中的处理器31、存储装置32、通信装置33、输入装置34和输出装置35可以通过总线或其他方式连接，图3中以通过总线连接为例。
输入装置34可用于接收输入的数字或字符信息，以及产生与设备的用户设置以及功能控制有关的按键信号输入。输出装置35可包括显示屏等显示设备。
通信装置33可以包括接收器和发送器。通信装置33设置为根据处理器31的控制进行信息收发通信。信息包括但不限于调制后的数据。
存储装置32作为一种计算机可读存储介质，可设置为存储软件程序、计算机可执行程序以及模块，如本申请实施例所述方法对应的程序指令/模块(例如，数据调制装置中的配置模块21和调制模块22)。存储装置32可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系统、至少一个功能所需的应用程序；存储数据区可存储根据设备的使用所创建的数据等。此外，存储装置32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，存储装置32可进一步包括相对于处理器31远程设置的存储器，这些远程存储器可以通过网络连接至设备。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。

Claims (17)

  1. 一种数据调制方法，包括：
    配置一种调制方式，所述调制方式的星座点调制符号由第一组星座点调制符号和第二组星座点调制符号组合而成；
    使用所述调制方式调制数据，所述数据包括第一数据块和第二数据块，所述第一数据块由所述第一组星座点调制符号调制，所述第二数据块由所述第二组星座点调制符号调制。
  2. 根据权利要求1所述的方法，其中，所述调制方式的星座点调制符号由第一组星座点调制符号和第二组星座点调制符号组合而成，包括：
    基于所述第一组星座点调制符号的相位调整所述第二组星座点调制符号的相位；
    基于所述第一组星座点调制符号与调整后的第二组星座点调制符号，组合而成所述调制方式的星座点调制符号。
  3. 根据权利要求2所述的方法，其中，通过如下公式组合而成所述调制方式的星座点调制符号：
    S(n)＝P(S1(k)+e jθ(S1(k))S2(m))；
    其中，S(n)为所述调制方式的星座点调制符号组{S(n)}中的一个调制符号，S1(k)为第一组星座点调制符号{S1(k)}中的一个调制符号，θ(S1(k))为S1(k)的相位；S2(m)为第二组星座点调制符号{S2(m)}中的一个调制符号；k＝0，1，...，K-1；m＝0，1，...，M-1；n＝0，1，...，N-1；N为大于或等于4的偶整数，K<N，M<N；P为常数。
  4. 根据权利要求1所述的方法，其中，所述第一组星座点调制符号为一组二进制相移键控BPSK调制符号，相邻调制符号间的相位差为π/2。
  5. 根据权利要求1所述的方法，其中，所述第一数据块由所述第一组星座点调制符号调制，包括：
    将所述第一组星座点调制符号划分为两个子组；
    交替使用所述两个子组调制所述第一数据块。
  6. 根据权利要求1所述的方法，其中，所述使用所述调制方式调制数据，包括：
    将所述调制方式的星座点调制符号划分为两个子组；
    交替使用所述两个子组调制所述数据。
  7. 根据权利要求1所述的方法，其中，所述第二组星座点调制符号所包括的 调制符号中最大模值小于如下之一：所述第一组星座点调制符号中的最大模值；所述第一组星座点调制符号中的最小模值；所述第一组星座点调制符号中的最小模值的一半。
  8. 根据权利要求1所述的方法，其中，所述数据以每log 2 N个或者每log 2 (N/2)个二进制比特数据序列为一个单位，采用所述调制方式的星座点调制符号进行映射调制，所述二进制比特数据序列为经过编码之后的数据序列。
  9. 根据权利要求1所述的方法，其中，所述第一数据块的比特数据为能力低于能力阈值或传输条件低于传输阈值的单个用户的数据。
  10. 根据权利要求1所述的方法，其中，所述第一数据块的比特数据为单个用户或多个用户的编码后的控制信息。
  11. 根据权利要求1所述的方法，其中，所述第一数据块和所述第二数据块为同一用户的数据或不同用户的数据。
  12. 根据权利要求1所述的方法，还包括：
    在物理资源上传输调制后的数据。
  13. 根据权利要求12所述的方法，其中，所述在物理资源上传输调制后的数据，包括：
    在时域上传输所述调制后的数据；或者，所述调制后的数据经过处理后在射频链路上传输，其中，处理的手段包括滤波和数模转换，或者，所述处理的手段包括离散傅里叶变换DFT、离散傅里叶反变换IDFT和数模转换。
  14. 根据权利要求1所述的方法，还包括：
    传输标识信息，所述标识信息指示所述数据是否采用所述调制方式的星座点调制符号调制。
  15. 一种数据调制装置，包括：
    配置模块，设置为配置一种调制方式，所述调制方式的星座点调制符号由第一组星座点调制符号和第二组星座点调制符号组合而成；
    调制模块，设置为使用所述调制方式调制数据，所述数据包括第一数据块和第二数据块，所述第一数据块由所述第一组星座点调制符号调制，所述第二数据块由所述第二组星座点调制符号调制。
  16. 一种设备，包括：
    一个或多个处理器；
    存储装置，设置为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权利要求1-14中任一项所述的数据调制方法。
  17. 一种存储介质，其中，所述存储介质存储有计算机程序，所述计算机程序被处理器执行时实现权利要求1-14中任一项所述的数据调制方法。
PCT/CN2021/101139 2020-06-22 2021-06-21 数据调制方法、装置、设备及存储介质 WO2021259177A1 (zh)

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