Signal sending and receiving method and device

Abstract

A signal transmitting and receiving method and device, the transmitting method comprising: determining a fourth sequence according to a third sequence, the third sequence being a sequence after DFT of a second sequence, the second sequence being a discrete sequence after CPM modulation sampling of a first sequence; the fourth sequence is mapped to X subcarriers, a first signal is generated, and X is an integer larger than zero; sending a first signal, the first signal being a signal carrying HARQ information, or the first signal being a signal carrying SR information, or the first signal being a demodulation reference signal, or the first signal being a phase tracking reference signal, etc. By adopting the method and the device provided by the embodiment of the invention, the PAPR value of the signal sent by the sending end can be reduced, and the coverage performance is improved.

Description

Technical Field

[0001] This application relates to the field of communication technologies, and in particular, to a signal sending and receiving method and apparatus. Background Art

[0002] In a new radio (NR) system, a physical uplink control channel (PUCCH) occupies 1 to 2 or 4 to 14 symbols within a subframe, and the symbol can be an orthogonal frequency division multiplexing (OFDM) symbol or a discrete Fourier transform spread orthogonal frequency division multiplexing multiple access (DFT-s-OFDM) symbol. Generally, in the NR system, in order to avoid interference between PUCCHs of two adjacent cells, it is necessary to consider that the selected sequences between adjacent cells have low cross-correlation. In order to improve the coverage of the PUCCH, the signal to be transmitted needs to have a low peak-to-average power ratio (PAPR).

[0003] Among them, the PAPR is defined as the ratio of the peak power of the signal to the average power. Since the dynamic range of the power amplifier is limited, too high PAPR of the signal will cause the power-amplified signal to enter the nonlinear region, and then cause the signal to generate nonlinear distortion after power amplification, resulting in spectrum expansion and in-band signal distortion, and reducing the system performance. In order to avoid the signal entering the nonlinear region, power back-off is required. The higher the PAPR, the higher the power to be backed off. However, power back-off will lead to a decrease in coverage performance. Therefore, reducing PAPR is beneficial to improving coverage performance. How to reduce the PAPR of the signal to improve the coverage performance is a research direction. Summary of the Invention

[0004] Embodiments of this application provide a signal sending and receiving method and apparatus to reduce the PAPR value of the signal and improve the coverage performance.

[0005] In a first aspect, a signal transmission method is provided. The execution subject of this method is a first communication device. It can be understood that in an uplink communication scenario, the first communication device can be a device with terminal functions. In a downlink communication scenario, the first communication device is a device with access network equipment functions. The method includes: determining a fourth sequence according to a third sequence, where the third sequence is the sequence after the discrete Fourier transform (DFT) of a second sequence, and the second sequence is a discrete sequence obtained by sampling the first sequence through continuous phase modulation (CPM) modulation; mapping the fourth sequence to X subcarriers to generate a first signal, where X is an integer greater than zero; and transmitting the first signal, where the first signal is a signal carrying hybrid automatic repeat request (HARQ) information, or the first signal is a signal carrying a scheduling request (SR) information, or the first signal is a demodulation reference signal, or the first signal is a phase tracking reference signal.

[0006] Through the above design, the first communication device performs continuous phase modulation (CPM) modulation sampling on the first sequence to obtain a second sequence; CPM modulation sampling includes two processes: CPM modulation and sampling. For example, the first communication device performs CPM modulation on the first sequence to obtain a CPM sequence; and samples the CPM sequence to obtain a second sequence. Among them, the CPM sequence is a time-domain constant modulus sequence, and theoretically the peak-to-average power ratio (PARR) value is equal to zero. The first communication device performs a discrete Fourier transform (DFT) on the second sequence to transform the second sequence from the time domain to the frequency domain, obtaining a third sequence, which is a frequency-domain sequence. The first communication device modulates the information to be transmitted onto the third sequence to obtain a fourth sequence. The first communication device maps the fourth sequence to X subcarriers to obtain a fifth sequence. The fifth sequence is subjected to orthogonal frequency division multiplexing (OFDM) modulation to generate a first signal, and the first signal is transmitted to the receiving end. During the OFDM modulation process, the first communication device transforms the fifth sequence from the frequency domain to the time domain. It can be seen that in the method of this embodiment of the present application, first, a CPM sequence with a constant modulus in the time domain is generated, and then a DFT transformation is performed to transform the sequence from the time domain to the frequency domain. Then, through an OFDM transformation, the sequence is transformed from the frequency domain back to the time domain. The entire processing process can be summarized as: converting a CPM sequence with a constant modulus in the time domain to the frequency domain, and then converting the frequency-domain sequence to the time domain. Theoretically, the first signal after OFDM modulation is a constant modulus in the time domain, and its PAPR value is equal to zero. However, in practical applications, affected by various factors, the PAPR value of the first signal can be less than a first threshold. For example, the first threshold is equal to 0.5 dB. Compared with the method of transmitting signals using a CGS sequence, the method of this embodiment of the present application can reduce the PAPR value of the signal transmitted by the first communication device and improve the coverage performance.

[0007] In a design, the second sequence {s n} includes X elements, and s n satisfies:

[0008]

[0009] where n is an integer between 0 and X - 1, exp represents the exponential function with base e, represents the phase of the second sequence, satisfies:

[0010] Or,

[0011]

[0012] where, is modulo 2*π, or, is not modulo 2*π, h represents the modulation index, L represents the impulse length, N represents the sampling rate, J represents the number of sampling blocks, the values of h, L, N, and J are all real numbers, T represents the symbol period, q(t) represents the phase response function, and β i represents an element of the first sequence {β i}, and i is an integer between 0 and J - 1.

[0013] In a design, during the CPM modulation sampling process: the value range of the modulation index h is a real number between 11 / 64 and 11 / 32, the value range of the impulse length L is L > 1, the phase response function q(t) takes the value of 0 in the range of t < 0 and takes a fixed value in the range of t ≥ LT, and the sampling rate N and the number of sampling blocks J satisfy: NJ = X.

[0014] Through the above design, during the CPM modulation sampling process, each parameter satisfies the above conditions, and the second communication device (i.e., the receiving end) has a lower block error rate (BLER) during sequence detection.

[0015] In a design, when the modulation index the impulse length L = 3, the modulation dimension M = 8, and the phase response function q(t) is:

[0016]

[0017]

[0018] When the sampling rate N = 2 and the number of sampling blocks J = 6:

[0019] The first sequence {β i} belongs to the first sequence set, and the sequences in the first sequence set include at least one of the following sequences: {-1, 1, 5, 3, -1, -7}; {-3, -1, 1, 5, -5, 1}; {-7, -5, -1, -3, -3, -5}; {3, -1, 3, 5, 5, 1}; {-7, -7, -7, -5, 5, -3}; {-1, -1, -1, -7, -3, -3}; {5, 5, 3, -5, 3, 5}; {-7, 7, -3, 7, -3, 7}; {-5, -5, -3, -7, -3, 7}; {-5, 3, -7, 1, -5, 5}; {-5, -7, -3, -5, -7, 3}; {5, 3, 3, 3, -7, 1}; {-1, 1, 5, 3, -3, 3}; {-3, -3, -7, 5, -5, -3}; {3, 5, 5, 5, -5, -5}; {-1, 3, -3, -7, -3, 3}; {7, -1, -1, -1, 7, -3}; {5, -7, 7, -7, 5, 5}; {-7, -5, 5, -7, 3, -5}; {-5, 1, -3, -5, 7, -3}; {7, -3, 7, -3, -7, -1}; {-5, 3, -1, -5, 7, 1}; {-7, -5, -7, 1, -1, 3}; {3, -7, 3, 5, 3, -7}; {5, -3, -5, -1, -7, 3}; {-1, 1, 1, 3, -7, 3}; {-3, -7, 3, -1, -3, 3}; {5, -3, 7, -3, -3, -3}; {3, -5, -5, -5, -1, 5}; {-7, -1, -5, 1, -1, 5}; {7, -1, -3, 7, -5, -5}; {-5, -1, 1, -7, -3, 7}; {-5, -3, 7, 1, -1, 1}.

[0020] Through the above design, the PAPR value of the first signal is less than 0.5, and the frequency domain flatness of the first signal is less than 0.5.

[0021] In one design, when the modulation index The impulse length L = 3, the modulation dimension M = 8, and the phase response function q(t) is:

[0022]

[0023]

[0024] When the sampling rate N = 2 and the number of sampling blocks J = 6:

[0025] The first sequence {β i} belongs to the first sequence set, and the sequences in the first sequence set include at least one of the following sequences: {-1, -3, 5, -1, 7, -7}; {7, 3, 5, 7, -5, 5}; {-3, -5, -5, -7, 5, -7}; {-7, -7, -7, 3, 3, -7}; {7, 7, 7, -1, -5, 7}; {-7, -3, -1, -7, 3, -7}; {-1, 7, -1, 3, -3, 7}; {3, -5, -7, 3, -3, -3}; {7, 5, -3, 7, 1, 5}; {7, 7, 5, -7, -7, 7}; {-3, -1, 3, 3, -5, 1}; {-7, 5, 5, 3, 7, -3}; {3, -7, -7, -7, 1, -5}; {-3, -7, 1, 7, -3, -5}; {5, 7, 1, -3, 7, -5}; {-1, -5, 7, -7, -1, -5}; {-7, -7, -7, 7, -3, 7}; {7, 1, -7, -7, -7, 3}; {-1, -3, 3, 7, 7, -3}; {7, 5, -7, -3, -7, 5}; {7, -5, -7, -1, 7, -1}; {-1, -7, 5, -1, -1, 5}; {-5, 1, -7, 3, 7, 1}; {-3, -7, 5, -3, 5, -7}; {3, 5, -3, 7, 5, -7}; {-3, -5, 5, -7, 3, 7}; {-7, 1, 5, -5, -7, 3}; {3, -5, 7, -5, -7, 7}; {-7, 7, -1, -5, 1, -7}; {7, -7, -5, 1, 1, 5}.

[0026] Through the above design, the PAPR value of the first signal is less than 0.5, and the frequency domain flatness of the first signal is less than 0.6.

[0027] In one design, when the modulation index The impulse length L = 3, the modulation dimension M = 8, and the phase response function q(t) is:

[0028]

[0029]

[0030] When the sampling rate N = 2 and the number of sampling blocks J = 6:

[0031] The first sequence {β i} belongs to the first sequence set, and the sequences in the first sequence set include at least one of the following sequences: {-5,1,3,3,3,1}; {-3,-5,-5,-5,-3,-3}; {-1,3,-3,1,-3,3}; {-3,-1,-1,-3,1,-5}; {3,5,-1,1,-1,5}; {3,-1,-1,1,3,1}; {-1,-5,-3,-5,-1,-3}; {-3,-5,-5,-5,-3,3}; {3,1,5,-3,3,3}; {-3,-5,-1,-5,-3,5}; {1,-5,1,-3,3,-3}; {5,-1,-5,-1,5,3}; {-1,3,1,3,-1,-5}; {-1,-3,-3,-1,1,-5}; {3,-3,3,-1,1,3}; {-5,-3,-1,1,-1,-3}; {5,-7,3,-7,5,-5}; {-1,-3,-3,1,5,-5}; {1,-5,3,-5,3,3}; {-5,5,-3,5,-5,-3}; {1,-1,5,-5,3,3}; {3,3,3,-1,-5,-3}; {-1,-5,3,-5,-1,3}; {1,-5,1,3,-3,3}; {-1,-5,-1,3,-5,3}; {-3,-5,-3,5,-7,1}; {-1,5,-3,-1,-3,3}; {-3,5,1,-1,-5,-3}; {-1,-5,-3,5,-3,1}; {-3,5,-1,-5,-3,1}; {1,1,-5,1,5,-3}; {5,1,-5,1,1,-3}; {5,-1,-5,-1,1,-5}; {-5,3,-1,3,-7,1}.

[0032] Through the above design, the PAPR value of the first signal is less than 0.5, and the frequency domain flatness is less than 0.5.

[0033] In one design, when the modulation index The impulse length L = 2, the modulation dimension M = 8, and the phase response function q(t) is:

[0034]

[0035]

[0036] When the sampling rate N = 2 and the number of sampling blocks J = 6:

[0037] The first sequence {β i} belongs to the first sequence set, and the sequences in the first sequence set include at least one of the following sequences: {1, 5, 5, -5, -1, -5}; {3, -7, -7, -1, 3, -1}; {7, 7, 5, -3, 5, 1}; {-7, -7, -1, -3, -7, -7}; {7, 7, 1, 7, 1, -5}; {-7, -3, -5, 1, -5, -3}; {1, 3, -1, -3, 1, 1}; {7, 7, 5, 3, -5, 5}; {-1, -7, 1, -1, 1, -5}; {3, -7, -7, -5, -7, 3}; {-3, 3, 1, 5, 1, 3}; {-3, -7, -7, 1, -5, -1}; {7, 7, 5, -5, -7, 5}; {5, 5, -5, -3, 5, 3}; {-3, 1, -3, 5, 7, 3}; {-7, -1, -7, -1, 5, -1}; {3, -3, 5, 5, 1, -1}; {-3, -3, -3, -1, -5, 5}; {-7, -7, -5, 1, -1, -3}; {5, -5, -7, -7, 3, 1}; {-5, -1, -7, -7, 3, -5}; {5, 3, 5, -1, -1, 1}; {-7, -7, 1, 5, 7, -1}; {5, -5, -3, -1, 5, -1}; {3, -3, -1, 3, -7, -5}; {-7, -3, -5, -3, 3, -7}; {3, -5, -1, 3, 1, -1}; {-7, -5, -5, 5, 5, -5}; {5, -5, -1, -7, -7, 5}; {-3, -1, 1, 3, -7, -3}.

[0038] Through the above design, the PAPR value of the first signal is less than 0.5, and the frequency-domain flatness is less than 0.6.

[0039] In one design, when the modulation index The impulse length L = 2, the modulation dimension M = 8, and the phase response function q(t) is:

[0040]

[0041]

[0042] When the sampling rate N = 2 and the number of sampling blocks J = 6:

[0043] The first sequence {β i} belongs to the first sequence set, and the sequences in the first sequence set include at least one of the following sequences: {3, -1, -7, -1, -3, -1}; {7, 7, 7, 7, 7, 1}; {-7, -7, -5, 5, -1, 3}; {3, 3, -3, 1, 3, 5}; {-5, -3, -7, -7, 1, -1}; {-7, 5, 5, 5, 7, -5}; {-1, -1, -1, 5, -1, -3}; {-5, 5, 7, 7, 7, 1}; {-7, -5, -3, -7, 5, -7}; {1, 7, 7, 1, 5, 3}; {5, -7, -7, -7, -7, 1}; {-1, -1, -7, -1, -1, -3}; {7, 7, 1, 1, 1, 7}; {5, 5, -5, -7, -3, -7}; {7, 1, 7, 7, -3, 5}; {1, -7, -7, -7, -1, -3}; {-3, -3, -1, 3, -1, 5}; {-7, 3, 3, 3, 3, -7}; {-7, -1, -7, 5, 5, 5}; {3, -3, 5, 7, -1, -1}; {-7, 3, -3, 3, -7, -1}; {5, 7, 5, -3, 1, -3}; {5, -5, -1, -7, -7, 5}; {-1, -1, -7, -1, 5, -7}; {1, -3, 5, -7, -7, 1}; {7, 7, 1, 5, -5, -3}; {5, 1, 5, -7, -1, -1}; {-7, 5, 7, 5, -3, -7}; {5, -7, -1, 5, -1, -1}; {5, 5, -7, -1, -1, 1}; {-1, -7, 5, 5, -1, -3}; {-1, 5, -5, -5, -5, 1}.

[0044] Through the above design, the PAPR value of the first signal is less than 0.5, and the frequency domain flatness is less than 0.5.

[0045] In one design, when the modulation index The impulse length L = 4, the modulation dimension M = 8, and the phase response function q(t) is:

[0046]

[0047]

[0048] When the sampling rate N = 2 and the number of sampling blocks J = 6:

[0049] The first sequence {β i} belongs to the first sequence set, and the sequences in the first sequence set include at least one of the following sequences: {-7, 3, 1, -5, 5, 3}; {-3, -7, -3, -7, 1, -5}; {1, 7, 1, 7, -3, 5}; {1, -7, -1, -3, -1, -1}; {3, -5, 5, 3, -1, 1}; {-3, -3, -3, -7, 5, -7}; {1, 1, 5, 3, -3, 5}; {1, -1, -5, 1, 5, -7}; {7, 1, -7, 3, 7, 1}; {-3, -5, -5, -5, -1, 1}; {5, -1, 5, -3, 3, 3}; {-7, -1, -3, -7, 7, -1}; {-5, -3, 3, -3, 1, 1}; {3, 1, 5, -1, -5, 3}; {1, 3, -3, 5, -3, -3}; {-3, 1, -7, -1, 3, -5}; {5, 3, 1, -3, 3, 3}; {-5, -3, -3, 7, -3, -5}; {1, 7, -3, -5, 1, -7}; {-1, -3, 5, -1, 1, 5}; {-1, -7, 3, 3, 5, 3}; {7, -3, -7, 1, 5, -3}; {-7, 3, -1, 1, -5, -3}; {3, 3, -7, 3, -5, 3}; {7, -7, -3, -3, 5, -5}; {5, -1, -5, -5, 5, 1}; {-5, -3, 1, 7, -3, -3}; {5, 3, -7, 7, -5, -3}; {-7, -3, 3, -7, 7, 1}; {7, -7, 3, -3, -7, 1}.

[0050] Through the above design, the PAPR value of the first signal is less than 0.5, and the frequency domain flatness is less than 0.6.

[0051] In one design, when the modulation index The impulse length L = 3, the modulation dimension M = 8, and the phase response function q(t) is:

[0052]

[0053]

[0054] When the sampling rate N = 2 and the number of sampling blocks J = 6:

[0055] The first sequence {β i} belongs to the first sequence set, and the sequences in the first sequence set include at least one of the following sequences: {-7,7,-7,-1,-7,7}; {5,-1,5,5,5,-3}; {-5,-5,-1,-1,-7,-5}; {-7,7,-3,-7,-7,-7}; {1,5,1,-3,-3,7}; {5,5,-7,3,5,5}; {-7,3,-5,-7,-1,1}; {1,-7,5,-1,1,1}; {1,7,-1,-1,7,3}; {-3,7,-5,-5,-3,-7}; {-7,-1,-5,-3,3,-1}; {-3,7,-3,7,-1,-7}; {-1,-1,-1,7,-7,1}; {-1,-5,-7,-7,-5,-1}; {1,-1,5,5,-5,1}; {3,5,3,-7,3,-7}; {7,-5,-5,-7,7,3}; {-7,-5,1,-1,1,-5}; {5,1,1,5,-1,-3}; {5,-1,-7,1,-7,1}; {3,-7,-1,1,-3,-3}; {-7,-5,-7,-3,5,1}; {7,-3,-3,-3,7,3}; {-7,7,-3,7,-7,-5}; {-1,-3,-1,-5,7,-5}; {-5,5,-7,5,5,5}; {-7,-5,-7,3,5,3}; {7,-7,1,-5,7,-3}; {-3,-5,5,3,5,-5}; {7,-5,-7,5,-5,-3}; {3,-5,-7,-1,7,-5}; {5,-7,-5,7,-3,-5}; {3,-5,7,-1,-7,-5}; {-1,-7,5,-3,-1,7}; {-5,7,-7,-3,7,1}; {3,7,-3,3,-3,-7}.

[0056] Through the above design, the PAPR value of the first signal is less than 0.5, and the frequency domain flatness is less than 0.5.

[0057] In one design, when the modulation index The impulse length L = 3, the modulation dimension M = 8, and the phase response function q(t) is:

[0058]

[0059]

[0060] When the sampling rate N = 2 and the number of sampling blocks J = 6:

[0061] The first sequence {β i} belongs to the first sequence set, and the sequences in the first sequence set include at least one of the following sequences: {3, 3, -1, -7, -1, -7}; {-3, 5, 5, 5, -5, 1}; {-5, -7, -5, -7, -1, 5}; {1, -5, -7, -5, 3, -5}; {5, 7, -1, 5, -3, 5}; {1, 5, -5, 1, -3, -1}; {-7, -7, -7, -3, -5, 1}; {7, -1, 7, 5, 1, -1}; {-7, 3, -3, 1, -1, -1}; {-3, -5, 3, -7, -1, -7}; {3, 3, 3, -7, 7, 1}; {-3, -7, -7, -5, -1, -7}; {-5, 5, -1, -1, 7, 5}; {5, 5, 3, 5, -1, -7}; {1, -7, -7, -7, 3, -1}; {-7, 1, 5, -1, 5, -3}; {3, -3, 3, -7, 5, -1}; {-7, -1, -5, -3, 3, -5}; {3, -7, -7, -7, 3, 5}; {-1, 7, -3, 3, -3, 7}; {-7, 1, -7, 5, 5, 3}; {-1, 3, -3, -7, -5, 3}; {-1, -5, -1, 5, -7, -1}; {-3, 5, 5, 5, -5, -7}; {-1, -7, -3, -7, -3, 1}; {-5, 1, -5, 3, 3, 3}; {-1, -7, 3, 3, -3, 5}; {-7, -5, 3, -1, -5, 5}; {-5, -5, -5, 5, 5, -5}; {-1, 3, 5, 5, -7, 5}.

[0062] Through the above design, the PAPR value of the first signal is less than 0.5, and the frequency domain flatness is less than 0.5.

[0063] In one design, when the modulation index The impulse length L = 3, the modulation dimension M = 8, and the phase response function q(t) is:[[]]END]]

[0064]

[0065]

[0066]

[0067]

[0068] When the bandwidth B = 0.3, the sampling rate N = 2, and the number of sampling blocks J = 6:

[0069] The first sequence {β i} belongs to the first sequence set, and the sequences in the first sequence set include at least one of the following sequences: {-1, -5, 3, -3, 3, -5}; {7, -1, 7, -1, 7, 5}; {-5, 3, -7, -5, -3, -7}; {-1, 5, -5, 5, -1, 5}; {-5, -1, -7, 1, -7, 3}; {5, 5, -1, 3, -1, 5}; {1, -3, -1, 1, 5, 5}; {-3, -3, -5, -7, -5, -1}; {1, -3, 5, -1, 1, -3}; {-3, 3, -3, -7, 1, -7}; {3, -5, 3, 5, 5, 5}; {3, 3, -7, -5, -3, -7}; {-3, 5, 5, 1, 5, 3}; {1, -5, 1, -5, 5, -5}; {-3, -5, -3, 7, -3, 7}; {1, -1, -5, -7, -5, 1}; {1, -1, 3, -3, 5, 3}; {3, -7, 1, -1, -7, -5}; {-5, -5, 5, 5, 5, 3}; {-7, 5, -7, 3, 3, 3}; {-3, -3, -5, 3, 5, -5}; {5, 5, 5, -7, 7, -7}; {3, -7, -1, -7, -3, -3}; {1, 5, -1, -1, -1, 5}; {-5, -1, 3, -1, 1, 3}; {-7, 1, -5, -5, -5, 5}; {-1, -5, 3, 5, 3, -5}; {-3, 5, -5, -5, -5, 5}; {-5, -5, -1, 5, 3, -5}; {1, -7, 3, 3, -7, -1}; {-1, -3, 3, 1, 5, -5}; {-5, -1, 5, -7, 5, -5}; {3, 3, -3, -7, -3, -3}; {5, -7, 5, -1, -5, -5}; {5, -5, 3, -1, -5, 3}; {-5, 3, 5, -1, 1, -3}; {3, -5, 5, 3, -5, -1}.

[0070] Through the above design, the PAPR value of the first signal is less than 0.5, and the frequency domain flatness is less than 0.5.

[0071] In a design, the fourth sequence includes X elements, and mapping the fourth sequence to X subcarriers includes: mapping the X elements to consecutive X subcarriers respectively; or mapping the X elements to non - consecutive and equally - spaced X subcarriers respectively.

[0072] In a design, the method is applied to a terminal, the first communication device is a device with terminal functions, and determining the fourth sequence according to the third sequence includes: determining a first cyclic shift value according to the information to be transmitted; performing cyclic shift on the third sequence according to the first cyclic shift value to determine the fourth sequence.

[0073] In one design, the method is applied to a terminal, and the first communication device is a device with terminal functions. Determining a fourth sequence according to the third sequence includes: determining a first complex symbol according to information to be transmitted; and determining the fourth sequence according to the first complex symbol and the third sequence.

[0074] In one design, the method is applied to a terminal or an access network device, and the first communication device is a device with terminal or access network device functions. Determining a fourth sequence according to the third sequence includes: determining a second cyclic shift value according to information to be transmitted; and determining the fourth sequence by cyclically shifting the third sequence according to the second cyclic shift value.

[0075] A second aspect is a corresponding peer method for the first aspect. For the beneficial effects, reference can be made to the description of the first aspect and will not be elaborated here. A signal receiving method is provided. The execution entity of this method is a second communication device. In an uplink communication scenario, the second communication device is a device with access network device functions. In a downlink communication scenario, the second communication device is a device with terminal functions. The method includes: receiving a first signal, where the first signal is a signal carrying hybrid automatic repeat request (HARQ) information, or the first signal is a signal carrying scheduling request (SR) information, or the first signal is a demodulation reference signal, or the first signal is a phase tracking reference signal; performing orthogonal frequency division multiplexing (OFDM) demodulation on the first signal to determine a fourth sequence; and determining a first result according to the fourth sequence and a third sequence, where the first result is a decoding result or the first result is a channel estimation result, the third sequence is a sequence after discrete Fourier transform (DFT) of a second sequence, and the second sequence is a discrete sequence obtained by sampling a first sequence with continuous phase modulation (CPM) modulation.

[0076] In one design, the second sequence {s n} includes X elements, s n represents an element in the second sequence {s n}, and the s n satisfies:

[0077]

[0078] where n is an integer between 0 and X - 1, X is an integer greater than zero, exp represents the exponential function with base e, represents the phase of the second sequence, satisfies:

[0079] Or,

[0080]

[0081] Among them, modulo 2*π or not modulo 2*π, h represents the modulation index, L represents the impulse length, N represents the sampling rate, J represents the number of sampling blocks, the values of h, L, N, and J are all real numbers, T represents the symbol period, q(t) represents the phase response function, β i represents an element in the first sequence {β i}, and i is an integer between 0 and J-1.

[0082] In one design, during the process of CPM modulation sampling: the value range of the modulation index h is a real number between 11 / 64 and 11 / 32, the value range of the impulse length L is L>1, the phase response function q(t) takes the value of 0 in the range of t<0, and takes a fixed value in the range of t≥LT, and the sampling rate N and the number of sampling blocks J satisfy: NJ = X.

[0083] In one design, when the modulation index the impulse length L = 3, the modulation dimension M = 8, and the phase response function q(t) is:

[0084]

[0085]

[0086] When the sampling rate N = 2 and the number of sampling blocks J = 6:

[0087] The first sequence {β i} belongs to the first sequence set, and the sequences in the first sequence set include at least one of the following sequences: {-1, 1, 5, 3, -1, -7}; {-3, -1, 1, 5, -5, 1}; {-7, -5, -1, -3, -3, -5}; {3, -1, 3, 5, 5, 1}; {-7, -7, -7, -5, 5, -3}; {-1, -1, -1, -7, -3, -3}; {5, 5, 3, -5, 3, 5}; {-7, 7, -3, 7, -3, 7}; {-5, -5, -3, -7, -3, 7}; {-5, 3, -7, 1, -5, 5}; {-5, -7, -3, -5, -7, 3}; {5, 3, 3, 3, -7, 1}; {-1, 1, 5, 3, -3, 3}; {-3, -3, -7, 5, -5, -3}; {3, 5, 5, 5, -5, -5}; {-1, 3, -3, -7, -3, 3}; {7, -1, -1, -1, 7, -3}; {5, -7, 7, -7, 5, 5}; {-7, -5, 5, -7, 3, -5}; {-5, 1, -3, -5, 7, -3}; {7, -3, 7, -3, -7, -1}; {-5, 3, -1, -5, 7, 1}; {-7, -5, -7, 1, -1, 3}; {3, -7, 3, 5, 3, -7}; {5, -3, -5, -1, -7, 3}; {-1, 1, 1, 3, -7, 3}; {-3, -7, 3, -1, -3, 3}; {5, -3, 7, -3, -3, -3}; {3, -5, -5, -5, -1, 5}; {-7, -1, -5, 1, -1, 5}; {7, -1, -3, 7, -5, -5}; {-5, -1, 1, -7, -3, 7}; {-5, -3, 7, 1, -1, 1}.

[0088] In a design, when the modulation index The impulse length L = 3, the modulation dimension M = 8, and the phase response function q(t) is:

[0089]

[0090]

[0091] When the sampling rate N = 2 and the number of sampling blocks J = 6:

[0092] The first sequence {β ibelongs to the first sequence set, and the sequences in the first sequence set include at least one of the following sequences: {-1, -3, 5, -1, 7, -7}; {7, 3, 5, 7, -5, 5}; {-3, -5, -5, -7, 5, -7}; {-7, -7, -7, 3, 3, -7}; {7, 7, 7, -1, -5, 7}; {-7, -3, -1, -7, 3, -7}; {-1, 7, -1, 3, -3, 7}; {3, -5, -7, 3, -3, -3}; {7, 5, -3, 7, 1, 5}; {7, 7, 5, -7, -7, 7}; {-3, -1, 3, 3, -5, 1}; {-7, 5, 5, 3, 7, -3}; {3, -7, -7, -7, 1, -5}; {-3, -7, 1, 7, -3, -5}; {5, 7, 1, -3, 7, -5}; {-1, -5, 7, -7, -1, -5}; {-7, -7, -7, 7, -3, 7}; {7, 1, -7, -7, -7, 3}; {-1, -3, 3, 7, 7, -3}; {7, 5, -7, -3, -7, 5}; {7, -5, -7, -1, 7, -1}; {-1, -7, 5, -1, -1, 5}; {-5, 1, -7, 3, 7, 1}; {-3, -7, 5, -3, 5, -7}; {3, 5, -3, 7, 5, -7}; {-3, -5, 5, -7, 3, 7}; {-7, 1, 5, -5, -7, 3}; {3, -5, 7, -5, -7, 7}; {-7, 7, -1, -5, 1, -7}; {7, -7, -5, 1, 1, 5}.

[0093] In one design, when the modulation index The impulse length L = 3, the modulation dimension M = 8, and the phase response function q(t) is:

[0094]

[0095]

[0096] When the sampling rate N = 2 and the number of sampling blocks J = 6:

[0097] The first sequence {β i} belongs to the first sequence set, and the sequences in the first sequence set include at least one of the following sequences: {-5,1,3,3,3,1}; {-3,-5,-5,-5,-3,-3}; {-1,3,-3,1,-3,3}; {-3,-1,-1,-3,1,-5}; {3,5,-1,1,-1,5}; {3,-1,-1,1,3,1}; {-1,-5,-3,-5,-1,-3}; {-3,-5,-5,-5,-3,3}; {3,1,5,-3,3,3}; {-3,-5,-1,-5,-3,5}; {1,-5,1,-3,3,-3}; {5,-1,-5,-1,5,3}; {-1,3,1,3,-1,-5}; {-1,-3,-3,-1,1,-5}; {3,-3,3,-1,1,3}; {-5,-3,-1,1,-1,-3}; {5,-7,3,-7,5,-5}; {-1,-3,-3,1,5,-5}; {1,-5,3,-5,3,3}; {-5,5,-3,5,-5,-3}; {1,-1,5,-5,3,3}; {3,3,3,-1,-5,-3}; {-1,-5,3,-5,-1,3}; {1,-5,1,3,-3,3}; {-1,-5,-1,3,-5,3}; {-3,-5,-3,5,-7,1}; {-1,5,-3,-1,-3,3}; {-3,5,1,-1,-5,-3}; {-1,-5,-3,5,-3,1}; {-3,5,-1,-5,-3,1}; {1,1,-5,1,5,-3}; {5,1,-5,1,1,-3}; {5,-1,-5,-1,1,-5}; {-5,3,-1,3,-7,1}.

[0098] In a design, when the modulation index The impulse length L = 2, the modulation dimension M = 8, and the phase response function q(t) is:

[0099]

[0100]

[0101] When the sampling rate N = 2 and the number of sampling blocks J = 6:

[0102] The first sequence {β i} belongs to the first sequence set, and the sequences in the first sequence set include at least one of the following sequences: {1, 5, 5, -5, -1, -5}; {3, -7, -7, -1, 3, -1}; {7, 7, 5, -3, 5, 1}; {-7, -7, -1, -3, -7, -7}; {7, 7, 1, 7, 1, -5}; {-7, -3, -5, 1, -5, -3}; {1, 3, -1, -3, 1, 1}; {7, 7, 5, 3, -5, 5}; {-1, -7, 1, -1, 1, -5}; {3, -7, -7, -5, -7, 3}; {-3, 3, 1, 5, 1, 3}; {-3, -7, -7, 1, -5, -1}; {7, 7, 5, -5, -7, 5}; {5, 5, -5, -3, 5, 3}; {-3, 1, -3, 5, 7, 3}; {-7, -1, -7, -1, 5, -1}; {3, -3, 5, 5, 1, -1}; {-3, -3, -3, -1, -5, 5}; {-7, -7, -5, 1, -1, -3}; {5, -5, -7, -7, 3, 1}; {-5, -1, -7, -7, 3, -5}; {5, 3, 5, -1, -1, 1}; {-7, -7, 1, 5, 7, -1}; {5, -5, -3, -1, 5, -1}; {3, -3, -1, 3, -7, -5}; {-7, -3, -5, -3, 3, -7}; {3, -5, -1, 3, 1, -1}; {-7, -5, -5, 5, 5, -5}; {5, -5, -1, -7, -7, 5}; {-3, -1, 1, 3, -7, -3}.

[0103] In a design, when the modulation index The impulse length L = 2, the modulation dimension M = 8, and the phase response function q(t) is:

[0104]

[0105]

[0106] When the sampling rate N = 2 and the number of sampling blocks J = 6:

[0107] The first sequence {β i} belongs to the first sequence set, and the sequences in the first sequence set include at least one of the following sequences: {3, -1, -7, -1, -3, -1}; {7, 7, 7, 7, 7, 1}; {-7, -7, -5, 5, -1, 3}; {3, 3, -3, 1, 3, 5}; {-5, -3, -7, -7, 1, -1}; {-7, 5, 5, 5, 7, -5}; {-1, -1, -1, 5, -1, -3}; {-5, 5, 7, 7, 7, 1}; {-7, -5, -3, -7, 5, -7}; {1, 7, 7, 1, 5, 3}; {5, -7, -7, -7, -7, 1}; {-1, -1, -7, -1, -1, -3}; {7, 7, 1, 1, 1, 7}; {5, 5, -5, -7, -3, -7}; {7, 1, 7, 7, -3, 5}; {1, -7, -7, -7, -1, -3}; {-3, -3, -1, 3, -1, 5}; {-7, 3, 3, 3, 3, -7}; {-7, -1, -7, 5, 5, 5}; {3, -3, 5, 7, -1, -1}; {-7, 3, -3, 3, -7, -1}; {5, 7, 5, -3, 1, -3}; {5, -5, -1, -7, -7, 5}; {-1, -1, -7, -1, 5, -7}; {1, -3, 5, -7, -7, 1}; {7, 7, 1, 5, -5, -3}; {5, 1, 5, -7, -1, -1}; {-7, 5, 7, 5, -3, -7}; {5, -7, -1, 5, -1, -1}; {5, 5, -7, -1, -1, 1}; {-1, -7, 5, 5, -1, -3}; {-1, 5, -5, -5, -5, 1}.

[0108] In a design, when the modulation index The impulse length L = 4, the modulation dimension M = 8, and the phase response function q(t) is:

[0109]

[0110]

[0111] When the sampling rate N = 2 and the number of sampling blocks J = 6:

[0112] The first sequence {β ibelongs to the first sequence set, and the sequences in the first sequence set include at least one of the following sequences: {-7, 3, 1, -5, 5, 3}; {-3, -7, -3, -7, 1, -5}; {1, 7, 1, 7, -3, 5}; {1, -7, -1, -3, -1, -1}; {3, -5, 5, 3, -1, 1}; {-3, -3, -3, -7, 5, -7}; {1, 1, 5, 3, -3, 5}; {1, -1, -5, 1, 5, -7}; {7, 1, -7, 3, 7, 1}; {-3, -5, -5, -5, -1, 1}; {5, -1, 5, -3, 3, 3}; {-7, -1, -3, -7, 7, -1}; {-5, -3, 3, -3, 1, 1}; {3, 1, 5, -1, -5, 3}; {1, 3, -3, 5, -3, -3}; {-3, 1, -7, -1, 3, -5}; {5, 3, 1, -3, 3, 3}; {-5, -3, -3, 7, -3, -5}; {1, 7, -3, -5, 1, -7}; {-1, -3, 5, -1, 1, 5}; {-1, -7, 3, 3, 5, 3}; {7, -3, -7, 1, 5, -3}; {-7, 3, -1, 1, -5, -3}; {3, 3, -7, 3, -5, 3}; {7, -7, -3, -3, 5, -5}; {5, -1, -5, -5, 5, 1}; {-5, -3, 1, 7, -3, -3}; {5, 3, -7, 7, -5, -3}; {-7, -3, 3, -7, 7, 1}; {7, -7, 3, -3, -7, 1}.

[0113] In one design, when the modulation index The impulse length L = 3, the modulation dimension M = 8, and the phase response function q(t) is:

[0114]

[0115]

[0116] When the sampling rate N = 2 and the number of sampling blocks J = 6:

[0117] The first sequence {β i} belongs to the first sequence set, and the sequences in the first sequence set include at least one of the following sequences: {-7,7,-7,-1,-7,7}; {5,-1,5,5,5,-3}; {-5,-5,-1,-1,-7,-5}; {-7,7,-3,-7,-7,-7}; {1,5,1,-3,-3,7}; {5,5,-7,3,5,5}; {-7,3,-5,-7,-1,1}; {1,-7,5,-1,1,1}; {1,7,-1,-1,7,3}; {-3,7,-5,-5,-3,-7}; {-7,-1,-5,-3,3,-1}; {-3,7,-3,7,-1,-7}; {-1,-1,-1,7,-7,1}; {-1,-5,-7,-7,-5,-1}; {1,-1,5,5,-5,1}; {3,5,3,-7,3,-7}; {7,-5,-5,-7,7,3}; {-7,-5,1,-1,1,-5}; {5,1,1,5,-1,-3}; {5,-1,-7,1,-7,1}; {3,-7,-1,1,-3,-3}; {-7,-5,-7,-3,5,1}; {7,-3,-3,-3,7,3}; {-7,7,-3,7,-7,-5}; {-1,-3,-1,-5,7,-5}; {-5,5,-7,5,5,5}; {-7,-5,-7,3,5,3}; {7,-7,1,-5,7,-3}; {-3,-5,5,3,5,-5}; {7,-5,-7,5,-5,-3}; {3,-5,-7,-1,7,-5}; {5,-7,-5,7,-3,-5}; {3,-5,7,-1,-7,-5}; {-1,-7,5,-3,-1,7}; {-5,7,-7,-3,7,1}; {3,7,-3,3,-3,-7}.

[0118] In one design, when the modulation index The impulse length L = 3, the modulation dimension M = 8, and the phase response function q(t) is:

[0119]

[0120]

[0121] When the sampling rate N = 2 and the number of sampling blocks J = 6:

[0122] The first sequence {β i} belongs to the first sequence set, and the sequences in the first sequence set include at least one of the following sequences: {3, 3, -1, -7, -1, -7}; {-3, 5, 5, 5, -5, 1}; {-5, -7, -5, -7, -1, 5}; {1, -5, -7, -5, 3, -5}; {5, 7, -1, 5, -3, 5}; {1, 5, -5, 1, -3, -1}; {-7, -7, -7, -3, -5, 1}; {7, -1, 7, 5, 1, -1}; {-7, 3, -3, 1, -1, -1}; {-3, -5, 3, -7, -1, -7}; {3, 3, 3, -7, 7, 1}; {-3, -7, -7, -5, -1, -7}; {-5, 5, -1, -1, 7, 5}; {5, 5, 3, 5, -1, -7}; {1, -7, -7, -7, 3, -1}; {-7, 1, 5, -1, 5, -3}; {3, -3, 3, -7, 5, -1}; {-7, -1, -5, -3, 3, -5}; {3, -7, -7, -7, 3, 5}; {-1, 7, -3, 3, -3, 7}; {-7, 1, -7, 5, 5, 3}; {-1, 3, -3, -7, -5, 3}; {-1, -5, -1, 5, -7, -1}; {-3, 5, 5, 5, -5, -7}; {-1, -7, -3, -7, -3, 1}; {-5, 1, -5, 3, 3, 3}; {-1, -7, 3, 3, -3, 5}; {-7, -5, 3, -1, -5, 5}; {-5, -5, -5, 5, 5, -5}; {-1, 3, 5, 5, -7, 5}.

[0123] In a design, when the modulation index The impulse length L = 3, the modulation dimension M = 8, and the phase response function q(t) is:

[0124]

[0125]

[0126]

[0127]

[0128] When the bandwidth B = 0.3, the sampling rate N = 2, and the number of sampling blocks J = 6:

[0129] The first sequence {β i} belongs to the first sequence set, and the sequences in the first sequence set include at least one of the following sequences: {-1, -5, 3, -3, 3, -5}; {7, -1, 7, -1, 7, 5}; {-5, 3, -7, -5, -3, -7}; {-1, 5, -5, 5, -1, 5}; {-5, -1, -7, 1, -7, 3}; {5, 5, -1, 3, -1, 5}; {1, -3, -1, 1, 5, 5}; {-3, -3, -5, -7, -5, -1}; {1, -3, 5, -1, 1, -3}; {-3, 3, -3, -7, 1, -7}; {3, -5, 3, 5, 5, 5}; {3, 3, -7, -5, -3, -7}; {-3, 5, 5, 1, 5, 3}; {1, -5, 1, -5, 5, -5}; {-3, -5, -3, 7, -3, 7}; {1, -1, -5, -7, -5, 1}; {1, -1, 3, -3, 5, 3}; {3, -7, 1, -1, -7, -5}; {-5, -5, 5, 5, 5, 3}; {-7, 5, -7, 3, 3, 3}; {-3, -3, -5, 3, 5, -5}; {5, 5, 5, -7, 7, -7}; {3, -7, -1, -7, -3, -3}; {1, 5, -1, -1, -1, 5}; {-5, -1, 3, -1, 1, 3}; {-7, 1, -5, -5, -5, 5}; {-1, -5, 3, 5, 3, -5}; {-3, 5, -5, -5, -5, 5}; {-5, -5, -1, 5, 3, -5}; {1, -7, 3, 3, -7, -1}; {-1, -3, 3, 1, 5, -5}; {-5, -1, 5, -7, 5, -5}; {3, 3, -3, -7, -3, -3}; {5, -7, 5, -1, -5, -5}; {5, -5, 3, -1, -5, 3}; {-5, 3, 5, -1, 1, -3}; {3, -5, 5, 3, -5, -1}.

[0130] In a design, the method is applied to an access network device, the first result is a decoding result, and determining the first result according to the fourth sequence and the third sequence includes: determining Y sixth sequences according to Y third cyclic shift values and the third sequence; performing correlation operations on the fourth sequence and the Y sixth sequences respectively to obtain Y correlation values, where Y is an integer greater than zero; and determining the decoding result according to the sixth sequence corresponding to the maximum correlation value among the Y correlation values.

[0131] In one design, the method is applied to an access network device, and the first result is a decoding result. Determining the first result according to the fourth sequence and the third sequence includes: determining N seventh sequences according to N complex symbols and the third sequence; respectively performing correlation operations on the fourth sequence and the N seventh sequences to obtain N correlation values, where N is an integer greater than zero; and determining the decoding result according to the seventh sequence corresponding to the maximum correlation value among the N correlation values.

[0132] In one design, the method is applied to a terminal or an access network device, and the first result is a channel estimation result. Determining the first result according to the fourth sequence and the third sequence includes: determining the eighth sequence according to the third sequence and a fourth cyclic shift value; and determining the channel estimation result according to the fourth sequence and the eighth sequence.

[0133] In a third aspect, a signal sending method is provided, and the execution subject of this method is a first communication device. It can be understood that in an uplink communication scenario, the first communication device can be a device with terminal functions. In a downlink communication scenario, the first communication device is a device with access network device functions. The method includes: determining a fourth sequence, where the fourth sequence {f n} includes X elements, X is an integer greater than zero, and f n is an element in the fourth sequence {f n}, and f n satisfies:

[0134] f n = A * x n * exp(2 * π * j * a * n);

[0135] where n is an integer between 0 and X - 1, X is an integer greater than zero, A represents phase and / or amplitude modulation, A is a non-zero complex number, exp represents the exponential function with e as the base, a represents a cyclic shift value, a is a real number, {x n} represents the third sequence, and x n is an element in the third sequence {x n}, and x n satisfies:

[0136]

[0137] where s n represents an element in the second sequence {s n}, the second sequence {s n} includes X elements, and the s n satisfies:

[0138]

[0139] where exp represents the exponential sequence with base e, represents the phase of the second sequence, satisfies:

[0140] Or,

[0141]

[0142] where, taking modulo 2*π or not taking modulo 2*π, h represents the modulation index, L represents the impulse length, N represents the sampling rate, J represents the number of sampling blocks, the values of h, L, N, and J are all real numbers, T represents the symbol period, q(t) represents the phase response function, β i represents an element in the first sequence {β i}, and i is an integer between 0 and J - 1.

[0143] Map the fourth sequence to X subcarriers to generate a first signal; transmit the first signal.

[0144] In a fourth aspect, a signal receiving method is provided, and the execution subject of this method is a second communication device. In an uplink communication scenario, the second communication device is a device with access network equipment function. In a downlink communication scenario, the second communication device is a device with terminal function. This method includes: receiving a first signal; performing orthogonal frequency division multiplexing (OFDM) demodulation on the first signal to determine a fourth sequence; the fourth sequence {f n} includes X elements, X is an integer greater than zero, f n is an element in the fourth sequence {f n}, and f n satisfies:

[0145] f n = A * x n * exp(2*π*j*a*n);

[0146] where, n is an integer between 0 and X - 1, X is an integer greater than zero, A represents phase and / or amplitude modulation, A is a non-zero complex number, exp represents the exponential function with base e, a represents the cyclic shift value, a is a real number, {x n} represents the third sequence, x n is an element in the third sequence {x n}, and x n satisfies:

[0147]

[0148] where s n represents an element in the second sequence {s n}, the second sequence {s n} includes X elements, and the s n satisfies:

[0149]

[0150] where exp represents the exponential sequence with base e, represents the phase of the second sequence, satisfies:

[0151] Or,

[0152]

[0153] where, is modulo 2*π, or not modulo 2*π, h represents the modulation index, L represents the impulse length, N represents the sampling rate, J represents the number of sampling blocks, the values of h, L, N, and J are all real numbers, T represents the symbol period, q(t) represents the phase response function, and β i represents an element in the first sequence {β i}, and i is an integer between 0 and J - 1.

[0154] Determine a first result according to the fourth sequence and the third sequence, where the first result is a decoding result, or the first result is a channel estimation result, the third sequence is the sequence after the discrete Fourier transform (DFT) of the second sequence, and the second sequence is a discrete sequence obtained by sampling the first sequence through continuous phase modulation (CPM) modulation.

[0155] In a fifth aspect, a device is provided, and this device can implement the method of the first aspect or the third aspect above. For example, this device includes means corresponding to the method of the first aspect or the third aspect above. This device can be implemented by hardware, software, or by hardware executing corresponding software.

[0156] In one design, this device includes a unit for executing the method of the first aspect or the third aspect above.

[0157] In one design, this device includes a processor and a memory, and the processor is used to execute the computer program or instructions stored in the memory, so that the device implements the method of the first aspect or the third aspect above.

[0158] In one design, the device includes a processor and an interface circuit. The interface circuit is configured to receive signals from other devices outside the device and transmit them to the processor, or to send signals from the processor to other devices outside the device. The processor uses logic circuits or executes code instructions to implement the method in the first aspect or the third aspect above.

[0159] In one design, the device can be the first device, or it can be a module or unit (e.g., a chip, or a chip system, or a circuit) in the first device that corresponds one by one to the method / operation / step / action described in the first aspect or the third aspect, or it can be something that can be used in conjunction with the first device.

[0160] In a sixth aspect, there is provided a device that can implement the method in the second aspect or the fourth aspect above. For example, the device includes means corresponding to the method in the second aspect or the fourth aspect above. The device can be implemented by hardware, by software, or by hardware executing corresponding software.

[0161] In one design, the device includes a unit that executes the method in the second aspect or the fourth aspect above.

[0162] In one design, the device includes a processor and a memory. The processor is configured to execute computer programs or instructions stored in the memory, so that the device implements the method in the second aspect or the fourth aspect above.

[0163] In one design, the device includes a processor and an interface circuit. The interface circuit is configured to receive signals from other devices outside the device and transmit them to the processor, or to send signals from the processor to other devices outside the device. The processor uses logic circuits or executes code instructions to implement the method in the second aspect or the fourth aspect above.

[0164] In one design, the device can be the second device, or it can be a module or unit (e.g., a chip, or a chip system, or a circuit) in the second device that corresponds one by one to the method / operation / step / action described in the second aspect or the fourth aspect, or it can be something that can be used in conjunction with the second device.

[0165] In a seventh aspect, there is provided a computer-readable storage medium storing computer programs or instructions. When the computer programs or instructions are run on a computer, the computer implements the method in any one of the first aspect to the fourth aspect above.

[0166] In an eighth aspect, there is provided a computer program product including computer programs or instructions. When the computer programs or instructions are run on a computer, the method in any one of the first aspect to the fourth aspect above is executed.

[0167] In a ninth aspect, a chip is provided, including a processor coupled to a memory for executing a computer program or instructions stored in the memory, so that the chip implements the method according to any one of the first to fourth aspects above.

[0168] In a tenth aspect, a communication system is provided, including: a first communication device and a second communication device; wherein, the first communication device is used to implement the method according to the first aspect above, and the second communication device is used to implement the method according to the second aspect above; or, the first communication device is used to implement the method according to the third aspect above, and the second communication device is used to implement the method according to the fourth aspect above. Description of the Drawings

[0169] Figure 1 It is a schematic diagram of the communication system provided by the embodiment of the present application;

[0170] Figure 2 It is a schematic flow chart provided by the embodiment of the present application;

[0171] Figure 3 It is a schematic structural diagram of the device provided by the embodiment of the present application;

[0172] Figure 4 It is another schematic structural diagram of the device provided by the embodiment of the present application. Detailed Embodiments

[0173] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings. The specific operation methods and function descriptions in the method embodiments can also be applied to the device embodiments or system embodiments.

[0174] In the embodiments of the present application, the various numerical numbers and terms such as "first" and "second" are only for the convenience of description and are not used to limit the scope of the embodiments of the present application. The magnitude of the serial numbers of the above processes does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic.

[0175] In the embodiments of the present application, for the number of nouns, unless otherwise specified, it means "singular noun or plural noun", that is, "one or more". "At least one" means one or more, and "multiple" means two or more. "And / or" describes the association relationship of associated objects and indicates that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone, where A and B can be singular or plural.

[0176] Figure 1 It shows a possible and non-limiting system schematic diagram. As Figure 1As shown, the communication system 10 includes a radio access network (RAN) 100 and a core network (CN) 200. Optionally, it also includes the Internet 300.

[0177] Among them, the RAN 100 includes at least one RAN node (for example, Figure 1 110a and 110b in Figure 1 etc., which can be collectively referred to as 110) and at least one terminal (for example, such as Figure 1 120a to 120j in

[0178] etc., which can be collectively referred to as 120). The RAN 100 may also include other RAN nodes, such as, for example, wireless relay devices and / or wireless backhaul devices, etc. ( Figure 1 not shown in

[0178] ).

[0179] The terminal 120 can be connected to the RAN node 110 wirelessly. The RAN node 110 is connected to the core network 200 wirelessly or wired. The core network devices in the core network 200 and the RAN nodes 110 in the RAN 100 can be different physical devices respectively, or the same physical device integrating the logical functions of the core network devices and the wireless access network logical functions.

[0179] The RAN 100 can be a cellular system related to the 3rd generation partnership project (3GPP), for example, the 4th generation (4G) mobile communication system, the 5th generation (5G) mobile communication system, or an evolved system for the future, for example, the 6th generation (6G) mobile communication system. The RAN 100 can also be an open RAN (O-RAN or ORAN), a cloud radio access network (CRAN), or a wireless fidelity (WiFi) system. The RAN 100 can also be a communication system integrating two or more of the above systems.

[0180] The multiple RAN nodes 110 in the communication system 10 can be of the same type of nodes or different types of nodes. In some scenarios, the roles of the RAN node 110 and the terminal 120 are relative. For example, Figure 1 the network element 120i in Figure 1 can be a helicopter or a drone, which can be configured as a mobile base station. For those terminals 120j accessing the RAN 100 through the network element 120i, the network element 120i is a base station; but for the base station 110a, the network element 120i is a terminal.

[0181] In a possible scenario, the RAN node 110 can be a base station, an evolved NodeB (eNodeB), an access point (AP), a transmission reception point (TRP), a next generation NodeB (gNB), a next generation base station in a 6G mobile communication system, a base station in a future mobile communication system, or an access node in a WiFi system, etc. The RAN node 110 can be a macro base station (such as Figure 1 110a in Figure 1 ), a micro base station or an indoor station (such as

[0182] 110b in

[0183] ), a relay node or a donor node, or a radio controller in a CRAN scenario. Optionally, the RAN node 110 can also be a server, a wearable device, a vehicle or an in-vehicle device, etc. For example, the access network device in vehicle to everything (V2X) technology can be a road side unit (RSU). All or part of the functions of the RAN node 110 in the embodiments of the present application can also be implemented by software functions running on hardware, or by virtualized functions instantiated on a platform (such as a cloud platform). The RAN node 110 in the embodiments of the present application can also be a logical node, a logical module or software that can implement all or part of the functions of the RAN node 110. In another possible scenario, multiple RAN nodes 110 cooperate to assist the terminal 120 in achieving wireless access, and different RAN nodes 110 respectively implement part of the functions of the base station. For example, the RAN node 110 can be a central unit (CU), a distributed unit (DU), a CU-control plane (CP), a CU-user plane (UP), or a radio unit (RU), etc. The CU and the DU can be set separately, or can also be included in the same network element, such as a baseband unit (BBU). The RU can be included in a radio frequency device or a radio frequency unit, such as included in a remote radio unit (RRU), an active antenna unit (AAU) or a remote radio head (RRH).In different systems, the CU (or CU-CP and CU-UP), DU, or RU may also have different names, but those skilled in the art can understand their meanings. For example, in the ORAN system, the CU may also be referred to as O-CU (Open CU), the DU may also be referred to as O-DU, the CU-CP may also be referred to as O-CU-CP, the CU-UP may also be referred to as O-CU-UP, and the RU may also be referred to as O-RU. For the convenience of description, in this application, the CU, CU-CP, CU-UP, DU, and RU are used as examples for description. Any one of the CU (or CU-CP, CU-UP), DU, and RU in this application may be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.

[0184] The terminal 120 may also be referred to as a terminal device, a user equipment (UE), a mobile station, a mobile terminal, etc. The terminal 120 can be widely applied to various scenarios, such as device-to-device (D2D), vehicle to everything (V2X) communication, machine-type communication (MTC), Internet of Things (IoT), virtual reality (VR), augmented reality (AR), industrial control, autonomous driving, telemedicine, smart grid, smart furniture, smart office, smart wearables, smart transportation, smart city, etc. The terminal 120 can be a mobile phone, a head-mounted display device, a tablet computer, a computer with wireless transceiver function, a wearable device, a vehicle, a drone, a helicopter, an airplane, a ship, a robot, a robotic arm, a smart home device, etc. The embodiments of this application do not limit the device form of the terminal 120.

[0185] The RAN node 110 and the terminal 120 are sometimes both referred to as communication devices, for example Figure 1 The network elements 110a and 110b in the middle network can be understood as communication devices with base station functions, and the network elements 120a - 120j can be understood as communication devices with terminal functions. The RAN node 110, sometimes also referred to as an access network device, a RAN entity, or an access node, etc., constitutes a part of the communication system to help the terminal 120 achieve wireless access. In the subsequent description of this application, if there is no special explanation, the term "access network device" is used for description.

[0186] In Figure 1In the communication system shown, information can be transmitted between the terminal and the access network device. Taking the example of the terminal sending uplink information to the access network device, the terminal obtains a computer generated sequence (CGS) sequence; the terminal modulates the information to be sent onto the CGS sequence, and after orthogonal frequency division multiplexing (OFDM) modulation, it is sent to the access network device via the uplink channel. Since the CGS sequence generated by the terminal is a constant modulus sequence in the frequency domain, after OFDM modulation, the constant modulus sequence in the frequency domain is transformed into a non-constant modulus sequence in the time domain. For a non-constant modulus sequence, the fluctuation of its amplitude is relatively large, and the peak-to-average power ratio (PAPR) is relatively high, with its PARP value being around 2.7 decibels (dB). How to reduce the PAPR value of the signal sent by the transmitting end and improve the coverage performance is the technical problem to be solved in the embodiments of this application.

[0187] In view of this, an embodiment of the present application provides a signal sending and receiving method, including: the sending end performs continuous phase modulation (CPM) modulation sampling on a first sequence to obtain a second sequence; the CPM modulation sampling includes two processes of CPM modulation and sampling. For example, the sending end performs CPM modulation on the first sequence to obtain a CPM sequence; samples the CPM sequence to obtain a second sequence. Among them, the CPM sequence is a time-domain constant modulus sequence, and theoretically the PARR value is equal to zero. The sending end performs a discrete fourier transform (DFT) on the second sequence to transform the second sequence from the time domain to the frequency domain, obtaining a third sequence, and the third sequence is a frequency-domain sequence. The sending end modulates the information to be sent onto the third sequence to obtain a fourth sequence. The sending end maps the fourth sequence onto X subcarriers to obtain a fifth sequence. Performs OFDM modulation on the fifth sequence to generate a first signal, and sends the first signal to the receiving end. During the OFDM modulation process, the sending end transforms the fifth sequence from the frequency domain to the time domain. It can be seen that in the method of the embodiment of the present application, first, a CPM sequence with a constant modulus in the time domain is generated, and then a DFT transform is performed to transform the sequence from the time domain to the frequency domain. Then, through an OFDM transform, the sequence is transformed from the frequency domain back to the time domain. The entire processing process can be summarized as: converting a CPM sequence with a constant modulus in the time domain to the frequency domain, and then converting the frequency-domain sequence to the time domain. Theoretically, the first signal after OFDM modulation is a constant modulus in the time domain, and its PAPR value is equal to zero, but in practical applications, affected by various factors, the PAPR value of the first signal can be less than or equal to a first threshold. For example, the first threshold is equal to 0.5 dB. Compared with the method of sending signals using a CGS sequence, the method of the embodiment of the present application can reduce the PAPR value of the signals sent by the sending end and improve the coverage performance.

[0188] It can be understood that the method provided by the embodiment of the present application can be applied to the uplink communication process. During the uplink communication process, the sending end is a terminal, and the terminal can adopt the signal sending method provided by the embodiment of the present application to send the first signal. The receiving end is an access network device, and the access network device can adopt the signal receiving method provided by the embodiment of the present application to receive the first signal. Alternatively, the method provided by the embodiment of the present application can be applied to the downlink communication process. During the downlink communication process, the sending end is an access network device, and the access network device can adopt the signal sending method provided by the embodiment of the present application to send the first signal. The receiving end is a terminal, and the terminal can adopt the signal receiving method provided by the embodiment of the present application to receive the first signal.

[0189] For ease of understanding and description, the solutions of the embodiments of the present application are described below by taking the interaction between a first communication device and a second communication device as an example. It can be understood that in the uplink communication process, the terminal serves as the sending end and the access network device serves as the receiving end. The first communication device can be a device with terminal functions. For example, the first communication device can be a terminal, or a module in the terminal (such as a circuit, a chip, or a chip system, etc.), or a logical node, a logical module, or software that implements all or part of the terminal functions. The second communication device can be a device with access network device functions. For example, the second communication device can be an access network device, or a module in the access network device (such as a circuit, a chip, or a chip system, etc.), or a logical node, a logical module, or software that implements all or part of the functions. In the downlink communication process, the access network device serves as the sending end and the terminal serves as the receiving end. The first communication device is a device with access network device functions. For example, the first communication device can be an access network device, or a module in the access network device, or a logical node, a logical module, or software that implements all or part of the access network device functions. The second communication device is a device with terminal functions. For example, the second communication device can be a terminal, or a module in the terminal, or a logical node, a logical module, or software that implements all or part of the terminal functions, etc.

[0190] As Figure 2 shown, the embodiments of the present application provide a process schematic diagram, including:

[0191] Step 200: The first communication device determines a fourth sequence according to a third sequence, where the third sequence is the sequence after DFT of the second sequence, and the second sequence is the discrete sequence obtained by CPM modulation and sampling of the first sequence.

[0192] In a possible implementation manner, the first communication device performs CPM modulation and sampling on the first sequence to obtain a second sequence, and the second sequence is a discrete sequence. For example, CPM modulation and sampling include two processes: CPM modulation and sampling. For example, the first communication device performs CPM modulation on the first sequence to obtain a CPM sequence. The first communication device samples the CPM sequence to obtain a second sequence, and the second sequence is a discrete CPM sequence. Alternatively, the processes of CPM modulation and sampling can be performed synchronously. For example, the first sequence includes 8 elements. When the first communication device performs CPM modulation on a part of the elements included in the first sequence, it synchronously samples the CPM sequence corresponding to another part of the elements included in the first sequence.

[0193] For example, the first communication device can input the first sequence into a CPM modulator to obtain a CPM sequence. The CPM sequence can be a time-domain signal with continuous phase and constant modulus. The CPM sequence s(t,β) satisfies:

[0194]

[0195] wherein, β i represents an element of the first sequence {β i}, exp represents the exponential function with base e, represents the phase of the CPM sequence.

[0196] When the initial phase of the CPM sequence is 0, the phase of the CPM sequence satisfies:

[0197]

[0198] Alternatively, when the initial phase of the CPM sequence is not equal to 0, the phase of the CPM sequence satisfies:

[0199]

[0200] wherein, is modulo 2*π, or, is not modulo 2*π, h represents the modulation index, L represents the impulse length, and both h and L are real numbers. For example, the value of h can be 1 / 2 or 1 / 4, which affects the phase interval between adjacent CPM modulation signals. The value of L can be 3, which means that the output of the current CPM modulator is related to the current input symbol and the two input symbols before it. Or, the value of L can be 4, which means that the output of the current CPM modulator is related to the current input symbol and the three input symbols before it. T represents the symbol period, and the value of T may be 1, which represents that the duration of each input symbol is 1. β i represents an element of the said first sequence {β i}, i is an integer from 0 to n, and q(t) represents the phase response function. Optionally, q(t) is associated with the impulse function F(t). For example, q(t) satisfies:

[0201]

[0202] wherein, F(t) represents the impulse function, and F(t) can be a rectangular impulse function, or a raised cosine impulse function, etc., without limitation. For example, when F(t) is a raised cosine impulse function, F(t) satisfies:

[0203]

[0204] The first communication device samples the CPM sequence to obtain a second sequence, and the second sequence is a discrete CPM sequence. For example, the second sequence s satisfies:

[0205]

[0206] Among them, T represents the symbol period, N represents the sampling rate, and J represents the number of sampling blocks. For example, the value of N may be 2, which means two values are taken within one symbol period T. For example, within the first symbol period T, the second sequence (i.e., the CPM sequence) output includes 2 elements, which are respectively The value of J can be 6, which means the number of symbols for CPM modulation sampling is 6.

[0207] In a possible design, the first communication device performs discrete modulation on the CPM sequence to obtain X elements, and any element s of the second sequence {s n} satisfies: n Satisfy:

[0208]

[0209] Among them, n is an integer between 0 and X - 1, exp represents the exponential function with base e, represents the phase of the second sequence, Satisfy:

[0210] Or,

[0211]

[0212] Among them, takes the modulo of 2*π, or, does not take the modulo of 2*π, h represents the modulation index, L represents the impulse length, N represents the sampling rate, J represents the number of sampling blocks, the values of h, L, N, and J are all real numbers, T represents the symbol period, q(t) represents the phase response function, β i represents an element of the first sequence {β i}, and i is an integer between 0 and J - 1.

[0213] The first communication device performs DFT transformation on the second sequence to transform the second sequence from the time domain to the frequency domain to obtain a third sequence, and the third sequence is a frequency-domain sequence. The first communication device determines a fourth sequence according to the third sequence. For example, the first communication device modulates the information to be sent onto the third sequence to obtain the fourth sequence.

[0214] In a possible implementation manner, the first communication device is a device with terminal functions. Taking the example that the first communication device feeds back information on the physical uplink control channel (PUCCH) in format 0: The first communication device can determine a first cyclic shift value according to the information to be sent; the first communication device cyclically shifts the third sequence according to the first cyclic shift value to determine the fourth sequence.

[0215] Optionally, the information to be transmitted may be hybrid automatic repeat request (HARQ) feedback information, or other information other than HARQ feedback, etc., without limitation. Taking the information to be transmitted as HARQ feedback information as an example. The HARQ feedback information and the cyclic shift sequence m CS have a corresponding relationship. The first communication device may determine the cyclic shift sequence m CS corresponding to the HARQ feedback information to be transmitted according to the corresponding relationship between the HARQ feedback information and the cyclic shift sequence m CS . For example, 4 cyclic shift sequences m CS are respectively: {0}, {3}, {6}, {9}. Among them, the cyclic shift sequence m CS corresponding to the HARQ feedback information 00 is {0}, the cyclic shift sequence m CS corresponding to the HARQ feedback information 01 is {3}, the cyclic shift sequence m CS corresponding to the HARQ feedback information 10 is {6}, and the cyclic shift sequence m CS corresponding to the HARQ feedback information 11 is {9}; the first communication device determines the first cyclic shift value according to the cyclic shift sequence m CS . For example, when the cyclic shift sequence m CS is 3, the first cyclic shift value is 3 / 12. The first cyclic shift value is represented as α, the third sequence is represented as {x n}, x n is an element in the third sequence {x n}, the fourth sequence is represented as {f n}, and f n is an element in the fourth sequence {f n}, and f n satisfies:

[0216]

[0217] In another possible implementation, the first communication device is a device with terminal function. Taking the first communication device as an example of feeding back information on the PUCCH in format 1: The first communication device determines the first complex symbol according to the information to be transmitted; the first communication device determines the fourth sequence according to the first complex symbol and the third sequence. For example, the first communication device multiplies the first complex symbol and the third sequence to obtain the fourth sequence.

[0218] Optionally, the information to be transmitted may be HARQ feedback information, or other information other than HARQ feedback, etc., without limitation. Taking the information to be transmitted as HARQ feedback information as an example. In this possible implementation, the cyclic shift sequence m CSis a preset value or a fixed value, and the first communication device determines a cyclic shift value α according to a preset or fixed cyclic shift sequence m CS , where the first complex symbol is obtained by modulating the HARQ feedback information to be transmitted, and the modulation method includes but is not limited to binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), 8-orthogonal amplitude modulation (QAM), or 16QAM, etc. For example, the first complex symbol obtained after modulating the HARQ feedback information by BPSK may be 1 or -1. The third sequence is expressed as {x n}, where x n is an element in the third sequence {x n}, the first complex symbol is expressed as d(0), the fourth sequence is expressed as {f n}, where f n is an element in the fourth sequence {f n}, and f n satisfies:

[0219]

[0220] In another possible implementation, the first communication device is a device with terminal function, or the first communication device is a device with access network equipment function. The first communication device can use the Figure 2 process method to feedback a reference signal to the second communication device, including: the first communication device determines a second cyclic shift value according to the information to be transmitted; the first communication device performs cyclic shift on the third sequence according to the second cyclic shift value to determine the fourth sequence.

[0221] Optionally, the information to be transmitted can be a reference signal, or other information other than the reference signal, etc., without limitation. Taking the information to be transmitted as a reference signal as an example. For example, for different reference signals, the corresponding cyclic shift sequence m CS can be different. The first communication device can determine the cyclic shift sequence m CS corresponding to the reference signal to be transmitted according to the corresponding relationship between the reference signal and the cyclic shift sequence m CS . The first communication device determines the second cyclic shift value α according to the cyclic shift sequence m CS corresponding to the reference signal to be transmitted; the third sequence is expressed as {x n}, where x n is an element in the third sequence {x n}, the fourth sequence is expressed as {f n}, where f n is an element in the fourth sequence {fn The elements in}, f n Satisfy:

[0222]

[0223] Optionally, the first communication device may further determine a first sequence, and the process includes: The first communication device determines a first group number u according to the parameters configured by the higher layer. The first communication device determines the sequence corresponding to the first group number u according to the correspondence between the group number and the sequence, and this sequence is called the first sequence. After that, the first communication device performs CPM modulation sampling on the first sequence according to the description in the previous text to determine a second sequence. Perform DFT transformation on the second sequence to obtain a third sequence. Determine a fourth sequence according to the third sequence; map the fourth sequence to X subcarriers to generate a first signal, etc. Or, the first communication device may directly determine the second sequence. For example, the process for the first communication device to determine the second sequence includes: The first communication device determines a second group number u' according to the parameters configured by the higher layer. The first communication device determines the sequence corresponding to the second group number u' according to the correspondence between the group number and the sequence, and this sequence is called the second sequence. After that, the first communication device performs DFT transformation on the second sequence according to the description in the previous text to obtain a third sequence. Determine a fourth sequence according to the third sequence. Map the fourth sequence to X subcarriers to generate a first signal, etc.

[0224] In a possible implementation, the fourth sequence can be expressed as {f n}, the fourth sequence {f n} includes X elements, X is an integer greater than zero, f n is an element in the fourth sequence {f n}, f n Satisfy:

[0225] f n = A * x n * exp(2 * π * j * a * n);

[0226] Wherein, n is an integer between 0 and X - 1, X is an integer greater than zero, A represents phase and / or amplitude modulation, A is a non-zero complex number, exp represents the exponential function with e as the base, a represents the cyclic shift value, a is a real number, {x n} represents the third sequence, x n is an element in the third sequence {x n}, x n Satisfy:

[0227]

[0228] Wherein, s n represents the second sequence {s n} elements. Optionally, the second sequence {s n} includes X elements, s n satisfies:

[0229]

[0230] where exp represents the exponential sequence with base e, represents the phase of the second sequence, satisfies:

[0231] Or,

[0232]

[0233] where, modulo 2*π, or not modulo 2*π, h represents the modulation index, L represents the impulse length, N represents the sampling rate, J represents the number of sampling blocks, h, L, N, and J are all real numbers, T represents the symbol period, q(t) represents the phase response function, β i represents an element in the first sequence {β i}, and i is an integer between 0 and J-1.

[0234] Step 210: The first communication device maps the fourth sequence to X subcarriers to generate a first signal, where X is an integer greater than zero.

[0235] In a possible implementation, the fourth sequence includes X elements. The first communication device maps the X elements to X consecutive subcarriers respectively to obtain a fifth sequence; or, the first communication device maps the X elements to X non-consecutive and equally spaced subcarriers respectively to obtain a fifth sequence. The first communication device performs OFDM modulation on the fifth sequence to obtain the first signal. The process of OFDM modulation includes inverse discrete Fourier transform (IDFT) and adding cyclic prefix (CP), etc. For example, the fourth sequence includes 12 elements, and the number of subcarriers used to transmit the first signal is 1200. The first communication device can map the 12 elements to 12 consecutive subcarriers among the 1200 subcarriers, or 12 non-consecutive and equally spaced subcarriers. The first communication device fills the remaining 1188 subcarriers among the 1200 subcarriers with zeros to obtain 1200 elements. In addition to the 12 elements of the fourth sequence, the fifth sequence also includes the subsequent 1188 elements filled with zeros. The first communication device performs IDFT transformation of the points, where ceil() represents the ceiling operation, transforms the fifth sequence from the frequency domain to the time domain, and adds CP to the time-domain sequence, etc., to obtain the first signal.

[0236] Step 220: The first communication device sends the first signal, and the second communication device receives the first signal.

[0237] In a possible implementation, when the information to be sent is HARQ feedback information, the first signal is a signal carrying HARQ information. Or, when the information to be sent is scheduling request (SR) information, the first signal is a signal carrying SR information. Or, when the information to be sent is the information corresponding to the reference signal, the first signal is the demodulation reference signal (DMRS), or the first signal is the phase-tracking reference signals (PT-RS).

[0238] Step 230: The second communication device performs OFDM demodulation on the first signal to determine the fourth sequence.

[0239] In a possible implementation, the process of OFDM demodulation includes: DFT transformation and CP removal, etc. For example, the second communication device can remove CP from the first signal to obtain a sequence. The second communication device performs 2048-point DFT transformation on this sequence, transforms the sequence from the time domain to the frequency domain, to obtain the fifth sequence. The second communication device obtains the fourth sequence from the fifth sequence. For example, if the fifth sequence includes 1200 elements, the second communication device can select 12 elements at the position of the fourth sequence from the 1200 elements, which is the fourth sequence.

[0240] Step 240: The second communication device determines the first result according to the fourth sequence and the third sequence.

[0241] In a possible implementation, the process for the second communication device to determine the third sequence is similar to the process for the first communication device to determine the third sequence. For example, the second communication device performs CPM modulation sampling on the first sequence to obtain the second sequence, and the second sequence is the discrete sequence obtained by performing CPM modulation sampling on the first sequence. The second communication device performs DFT transformation on the second sequence to obtain the third sequence, and the third sequence is the sequence after DFT of the second sequence. For the specific process, refer to the process for the first communication device to determine the third sequence.

[0242] In a possible implementation, the first result is a decoding result, the first signal is transmitted on a PUCCH in format 0, and the second communication device is a device with access network equipment functions: the second communication device can determine Y sixth sequences according to Y third cyclic shift values and a third sequence; the second communication device respectively performs correlation operations on a fourth sequence and the Y sixth sequences to obtain Y correlation values, where Y is an integer greater than zero; the second communication device determines the decoding result according to the sixth sequence corresponding to the maximum correlation value among the Y correlation values.

[0243] For example, taking the decoding result of HARQ feedback as the first result. The second communication device can determine all possible cyclic shift sequences m according to all possible HARQ feedback information. CS ; The second communication device determines all possible cyclic shift values according to all possible cyclic shift sequences m. CS In one description, all possible cyclic shift values are described as Y third cyclic shift values. For example, for two-bit HARQ feedback information, the value combinations of its cyclic shift values are {0 / 12, 3 / 12, 6 / 12, 9 / 12}, that is, all possible cyclic shift values are 4, and the value of Y is equal to 4. At this time, there are 4 third cyclic shift values. The third sequence is represented as {x n}, x n is an element in the third sequence {x n}, one of the Y third cyclic shift values is represented as α, and one of the Y sixth sequences {y n}, y n is an element in the sixth sequence {y n}, and y n satisfies:

[0244] The second communication device respectively performs correlation operations on the fourth sequence obtained according to the received first signal and the Y sixth sequences to obtain Y correlation values. The second communication device selects the one with the largest value among the Y correlation values. The second communication device determines the sixth sequence corresponding to the correlation value with the largest value. The second communication device backtracks the cyclic shift value α corresponding to this sixth sequence, and further backtracks the cyclic shift sequence m CS corresponding to it, and further backtracks the HARQ feedback information corresponding to this cyclic shift sequence m CS and uses this HARQ feedback information as the decoding result.

[0245] In another possible implementation, the first result is a decoding result, the first signal is transmitted on a PUCCH in format 1, and the second communication device is a device with access network equipment functions: The second communication device determines N seventh sequences according to N complex symbols and the third sequence; the second communication device performs correlation operations on the fourth sequence and the N seventh sequences respectively to obtain N correlation values, where N is an integer greater than zero; the second communication device determines the decoding result according to the seventh sequence corresponding to the maximum correlation value among the N correlation values.

[0246] For example, taking the decoding result of HARQ feedback as the first result. The second communication device can determine all possible complex symbols according to all possible HARQ feedback information. In one description, all possible complex symbols are described as N complex symbols. For example, for two-bit HARQ feedback information, its value combinations after QPSK modulation are At this time, all possible complex symbols are 4, the value of N is equal to 4, and there are 4 complex symbols at this time. The third sequence is expressed as {x n}, x n is an element in the third sequence {x n}, one of the N complex symbols is expressed as d(0), and one of the N seventh sequences {y n}, y n is an element in the seventh sequence {y n}, and y n satisfies:

[0247]

[0248] The second communication device performs correlation operations on the fourth sequence obtained according to the received first signal and the N seventh sequences respectively to obtain N correlation values. The second communication device selects the largest correlation value among the N correlation values. The second communication device determines the seventh sequence corresponding to the largest correlation value. The second communication device reversely deduces the complex symbol corresponding to the seventh sequence, further reversely deduces the HARQ feedback information corresponding to the complex symbol, and takes the HARQ feedback information as the decoding result.

[0249] In another possible implementation, when the first result is a channel estimation result, the second communication device is a device with terminal functions, or the second communication device is a device with access network equipment functions: The second communication device determines the eighth sequence according to the third sequence and the fourth cyclic shift value; the second communication device determines the channel estimation result according to the fourth sequence and the eighth sequence.

[0250] For example, the second communication device may determine the cyclic shift value corresponding to the currently transmitted reference signal according to the correspondence between the reference signal and the cyclic shift value. This cyclic shift value may be referred to as the fourth cyclic shift value. The third sequence is expressed as {x n}, where x n is an element in the third sequence {x n}. The fourth cyclic shift value is expressed as α. The eighth sequence is expressed as {y n}, where y n is an element in the eighth sequence {y n}, and y n satisfies:

[0251]

[0252] The second communication device performs channel estimation on the fourth sequence and the eighth sequence obtained according to the received first signal to determine the channel estimation result.

[0253] It can be understood that the reference signal can be transmitted in the data channel or in the control channel. If the first signal in the embodiments of the present application is an uplink reference signal, the first signal can be transmitted in the PUCCH, or the first signal can be transmitted in the physical uplink shared channel (PUSCH). Alternatively, if the first signal in the embodiments of the present application is a downlink reference signal, the first signal can be transmitted in the physical downlink control channel (PDCCH), or the first signal can be transmitted in the physical downlink shared channel (PDSCH).

[0254] In a possible implementation, during the CPM modulation sampling process by the first communication device or the second communication device: the value range of the modulation index h is a real number between 11 / 64 and 11 / 32, the value range of the impulse length L is L>1, q(t) is the phase response function, which takes a value of 0 in the range of t<0 and takes a fixed value in the range of t≥LT. The sampling rate N and the number of sampling blocks J satisfy: NJ = X.

[0255] By the above method, during the CPM modulation sampling process, each parameter satisfies the above conditions, and the block error rate (BLER) of the receiving end (i.e., the second communication device) during sequence detection is lower.

[0256] Optionally, in order to make the generated CPM sequence meet the requirements, the design of the CPM sequence needs to meet the following requirements:

[0257] 1. Good autocorrelation performance: Meeting this characteristic can make the BLER at the receiving end lower during sequence detection. Further, the autocorrelation value of the CPM sequence in the frequency domain at the position where the cyclic shift value is 0 is greater than or equal to twice the value of the autocorrelation value when the cyclic shift value is an integer multiple of one-fourth of the entire CPM sequence length.

[0258] 2. The phase at the end position and the phase at the start position are continuous in the time domain: Meeting this characteristic can make the PAPR value of the CPM sequence lower. To meet this characteristic, the elements β of the first sequence {β i} satisfy: i where P represents the denominator of the modulation index h. For example, when the modulation index h takes the value of 1 / 2, the value of P is 2.

[0259]

[0260]

[0261] In a possible implementation, when the modulation index The impulse length L = 3, the modulation dimension M = 8, and the modulation dimension represents the value range of the first sequence. For example, for M - dimensional modulation, the values of the first sequence belong to the following set {±1, ±3, ±5, …, ±M - 1}, and the phase response function q(t) is:

[0262]

[0263]

[0264] When the sampling rate N = 2 and the number of sampling blocks J = 6:

[0265] The first sequence {β i ​} belongs to the first sequence set, and the sequences in the first sequence set include at least one of the following sequences: {-1, 1, 5, 3, -1, -7}; {-3, -1, 1, 5, -5, 1}; {-7, -5, -1, -3, -3, -5}; {3, -1, 3, 5, 5, 1}; {-7, -7, -7, -5, 5, -3}; {-1, -1, -1, -7, -3, -3}; {5, 5, 3, -5, 3, 5}; {-7, 7, -3, 7, -3, 7}; {-5, -5, -3, -7, -3, 7}; {-5, 3, -7, 1, -5, 5}; {-5, -7, -3, -5, -7, 3}; {5, 3, 3, 3, -7, 1}; {-1, 1, 5, 3, -3, 3}; {-3, -3, -7, 5, -5, -3}; {3, 5, 5, 5, -5, -5}; {-1, 3, -3, -7, -3, 3}; {7, -1, -1, -1, 7, -3}; {5, -7, 7, -7, 5, 5}; {-7, -5, 5, -7, 3, -5}; {-5, 1, -3, -5, 7, -3}; {7, -3, 7, -3, -7, -1}; {-5, 3, -1, -5, 7, 1}; {-7, -5, -7, 1, -1, 3}; {3, -7, 3, 5, 3, -7}; {5, -3, -5, -1, -7, 3}; {-1, 1, 1, 3, -7, 3}; {-3, -7, 3, -1, -3, 3}; {5, -3, 7, -3, -3, -3}; {3, -5, -5, -5, -1, 5}; {-7, -1, -5, 1, -1, 5}; {7, -1, -3, 7, -5, -5}; {-5, -1, 1, -7, -3, 7}; {-5, -3, 7, 1, -1, 1}.

[0266] The first sequence set includes 33 groups of first sequences. These 33 groups of first sequences satisfy the conditions in the above-mentioned characteristic 2, and the cross-correlation of these 33 groups of first sequences is close to that of the CGS sequence, with no obvious difference. The correspondence between these 33 groups of first sequences and the group number u is not restricted. For example, the correspondence between these 33 groups of first sequences and the group number u is shown in Table 1:

[0267] Table 1

[0268] Group number u First sequence 0 {-1,1,5,3,-1,-7} 1 {-3,-1,1,5,-5,1} 2 {-7,-5,-1,-3,-3,-5} 3 {3,-1,3,5,5,1} 4 {-7,-7,-7,-5,5,-3} 5 {-1,-1,-1,-7,-3,-3} 6 {5,5,3,-5,3,5} 7 {-7,7,-3,7,-3,7} 8 {-5,-5,-3,-7,-3,7} 9 {-5,3,-7,1,-5,5} 10 {-5,-7,-3,-5,-7,3} 11 {5,3,3,3,-7,1} 12 {-1,1,5,3,-3,3} 13 {-3,-3,-7,5,-5,-3} 14 {3,5,5,5,-5,-5} 15 {-1,3,-3,-7,-3,3} 16 {7,-1,-1,-1,7,-3} 17 {5,-7,7,-7,5,5} 18 {-7,-5,5,-7,3,-5} 19 {-5,1,-3,-5,7,-3} 20 {7,-3,7,-3,-7,-1} 21 {-5,3,-1,-5,7,1} 22 {-7,-5,-7,1,-1,3} 23 {3,-7,3,5,3,-7} 24 {5,-3,-5,-1,-7,3} 25 {-1,1,1,3,-7,3} 26 {-3,-7,3,-1,-3,3} 27 {5,-3,7,-3,-3,-3} 28 {3,-5,-5,-5,-1,5} 29 {-7,-1,-5,1,-1,5} 30 {7,-1,-3,7,-5,-5} 31 {-5,-1,1,-7,-3,7} 32 {-5,-3,7,1,-1,1}

[0269] Through the above design, the autocorrelation of the generated CPM sequence satisfies the above-mentioned characteristic 1, the PAPR value of the first signal is less than 0.5, and the frequency-domain flatness of the first signal is less than 0.5. Optionally, the frequency-domain flatness of the first signal can be measured by variance. The smaller the value of the variance, the smaller the frequency-domain flatness of the first signal. On the contrary, the larger the value of the variance, the larger the frequency-domain flatness of the first signal.

[0270] In another possible implementation, when the modulation index the impulse length L = 3, the modulation dimension M = 8, and the phase response function q(t) is as follows:

[0271]

[0272]

[0273] when the sampling rate N = 2 and the number of sampling blocks J = 6:

[0274] The first sequence {β i} belongs to the first sequence set, and the sequences in the first sequence set include at least one of the following sequences: {-1, -3, 5, -1, 7, -7}; {7, 3, 5, 7, -5, 5}; {-3, -5, -5, -7, 5, -7}; {-7, -7, -7, 3, 3, -7}; {7, 7, 7, -1, -5, 7}; {-7, -3, -1, -7, 3, -7}; {-1, 7, -1, 3, -3, 7}; {3, -5, -7, 3, -3, -3}; {7, 5, -3, 7, 1, 5}; {7, 7, 5, -7, -7, 7}; {-3, -1, 3, 3, -5, 1}; {-7, 5, 5, 3, 7, -3}; {3, -7, -7, -7, 1, -5}; {-3, -7, 1, 7, -3, -5}; {5, 7, 1, -3, 7, -5}; {-1, -5, 7, -7, -1, -5}; {-7, -7, -7, 7, -3, 7}; {7, 1, -7, -7, -7, 3}; {-1, -3, 3, 7, 7, -3}; {7, 5, -7, -3, -7, 5}; {7, -5, -7, -1, 7, -1}; {-1, -7, 5, -1, -1, 5}; {-5, 1, -7, 3, 7, 1}; {-3, -7, 5, -3, 5, -7}; {3, 5, -3, 7, 5, -7}; {-3, -5, 5, -7, 3, 7}; {-7, 1, 5, -5, -7, 3}; {3, -5, 7, -5, -7, 7}; {-7, 7, -1, -5, 1, -7}; {7, -7, -5, 1, 1, 5}.

[0275] The first sequence set includes 30 groups of first sequences. These 30 groups of first sequences partially satisfy the conditions in the above-mentioned feature 2, and the cross-correlation of these 30 groups of first sequences is close to that of the CGS sequence, with no obvious difference. The correspondence between these 30 groups of first sequences and the group number u is not restricted. For example, the correspondence between these 30 groups of first sequences and the group number u is shown in Table 2:

[0276] Table 2

[0277]

[0278]

[0279] Through the above design, the autocorrelation of the generated CPM sequence satisfies the above Feature 1, the PAPR value of the first signal is less than 0.5, and the frequency domain flatness of the first signal is less than 0.6.

[0280] In a possible implementation, when the modulation index The impulse length L = 3, the modulation dimension M = 8, and the phase response function q(t) is:

[0281]

[0282]

[0283] When the sampling rate N = 2 and the number of sampling blocks J = 6:

[0284] The first sequence {β i} belongs to the first sequence set, and the sequences in the first sequence set include at least one of the following sequences: {-5, 1, 3, 3, 3, 1}; {-3, -5, -5, -5, -3, -3}; {-1, 3, -3, 1, -3, 3}; {-3, -1, -1, -3, 1, -5}; {3, 5, -1, 1, -1, 5}; {3, -1, -1, 1, 3, 1}; {-1, -5, -3, -5, -1, -3}; {-3, -5, -5, -5, -3, 3}; {3, 1, 5, -3, 3, 3}; {-3, -5, -1, -5, -3, 5}; {1, -5, 1, -3, 3, -3}; {5, -1, -5, -1, 5, 3}; {-1, 3, 1, 3, -1, -5}; {-1, -3, -3, -1, 1, -5}; {3, -3, 3, -1, 1, 3}; {-5, -3, -1, 1, -1, -3}; {5, -7, 3, -7, 5, -5}; {-1, -3, -3, 1, 5, -5}; {1, -5, 3, -5, 3, 3}; {-5, 5, -3, 5, -5, -3}; {1, -1, 5, -5, 3, 3}; {3, 3, 3, -1, -5, -3}; {-1, -5, 3, -5, -1, 3}; {1, -5, 1, 3, -3, 3}; {-1, -5, -1, 3, -5, 3}; {-3, -5, -3, 5, -7, 1}; {-1, 5, -3, -1, -3, 3}; {-3, 5, 1, -1, -5, -3}; {-1, -5, -3, 5, -3, 1}; {-3, 5, -1, -5, -3, 1}; {1, 1, -5, 1, 5, -3}; {5, 1, -5, 1, 1, -3}; {5, -1, -5, -1, 1, -5}; {-5, 3, -1, 3, -7, 1}.

[0285] The first sequence set includes 34 groups of first sequences. Some of these 34 groups of first sequences satisfy the conditions in the above-mentioned Property 2, and the cross-correlation of these 34 groups of first sequences is close to that of the CGS sequence, with no obvious difference. There is no restriction on the correspondence between these 34 groups of first sequences and the group number u. For example, the correspondence between these 34 groups of first sequences and the group number u is shown in Table 3 as follows:

[0286] Table 3

[0287]

[0288]

[0289] Through the above design, the autocorrelation of the generated CPM sequence satisfies the above-mentioned Property 1, the PAPR value of the first signal is less than 0.5, and the frequency-domain flatness is less than 0.5.

[0290] In a possible implementation, when the modulation index the impulse length L = 2, the modulation dimension M = 8, and the phase response function q(t) is:

[0291]

[0292]

[0293] When the sampling rate N = 2 and the number of sampling blocks J = 6:

[0294] The first sequence {β i} belongs to the first sequence set, and the sequences in the first sequence set include at least one of the following sequences: {1, 5, 5, -5, -1, -5}; {3, -7, -7, -1, 3, -1}; {7, 7, 5, -3, 5, 1}; {-7, -7, -1, -3, -7, -7}; {7, 7, 1, 7, 1, -5}; {-7, -3, -5, 1, -5, -3}; {1, 3, -1, -3, 1, 1}; {7, 7, 5, 3, -5, 5}; {-1, -7, 1, -1, 1, -5}; {3, -7, -7, -5, -7, 3}; {-3, 3, 1, 5, 1, 3}; {-3, -7, -7, 1, -5, -1}; {7, 7, 5, -5, -7, 5}; {5, 5, -5, -3, 5, 3}; {-3, 1, -3, 5, 7, 3}; {-7, -1, -7, -1, 5, -1}; {3, -3, 5, 5, 1, -1}; {-3, -3, -3, -1, -5, 5}; {-7, -7, -5, 1, -1, -3}; {5, -5, -7, -7, 3, 1}; {-5, -1, -7, -7, 3, -5}; {5, 3, 5, -1, -1, 1}; {-7, -7, 1, 5, 7, -1}; {5, -5, -3, -1, 5, -1}; {3, -3, -1, 3, -7, -5}; {-7, -3, -5, -3, 3, -7}; {3, -5, -1, 3, 1, -1}; {-7, -5, -5, 5, 5, -5}; {5, -5, -1, -7, -7, 5}; {-3, -1, 1, 3, -7, -3}.

[0295] The first sequence set includes 30 groups of first sequences. Some of these 30 groups of first sequences satisfy the conditions in the above-mentioned characteristic 2, and the cross-correlation of these 30 groups of first sequences has no obvious difference from the cross-correlation of the CGS sequences. There is no restriction on the correspondence between these 30 groups of first sequences and the group number u. For example, the correspondence between these 30 groups of first sequences and the group number u is shown in Table 4:

[0296] Table 4

[0297]

[0298]

[0299] Through the above design, the autocorrelation of the generated CPM sequence satisfies the above-mentioned characteristic 1, the PAPR value of the first signal is less than 0.5, and the frequency domain flatness is less than 0.6.

[0300] In a possible implementation, when the modulation index The impulse length L = 2, the modulation dimension M = 8, and the phase response function q(t) is:[[]]

[0301]

[0302]

[0303] When the sampling rate N = 2 and the number of sampling blocks J = 6:

[0304] The first sequence {β i} belongs to the first sequence set, and the sequences in the first sequence set include at least one of the following sequences: {3, -1, -7, -1, -3, -1}; {7, 7, 7, 7, 7, 1}; {-7, -7, -5, 5, -1, 3}; {3, 3, -3, 1, 3, 5}; {-5, -3, -7, -7, 1, -1}; {-7, 5, 5, 5, 7, -5}; {-1, -1, -1, 5, -1, -3}; {-5, 5, 7, 7, 7, 1}; {-7, -5, -3, -7, 5, -7}; {1, 7, 7, 1, 5, 3}; {5, -7, -7, -7, -7, 1}; {-1, -1, -7, -1, -1, -3}; {7, 7, 1, 1, 1, 7}; {5, 5, -5, -7, -3, -7}; {7, 1, 7, 7, -3, 5}; {1, -7, -7, -7, -1, -3}; {-3, -3, -1, 3, -1, 5}; {-7, 3, 3, 3, 3, -7}; {-7, -1, -7, 5, 5, 5}; {3, -3, 5, 7, -1, -1}; {-7, 3, -3, 3, -7, -1}; {5, 7, 5, -3, 1, -3}; {5, -5, -1, -7, -7, 5}; {-1, -1, -7, -1, 5, -7}; {1, -3, 5, -7, -7, 1}; {7, 7, 1, 5, -5, -3}; {5, 1, 5, -7, -1, -1}; {-7, 5, 7, 5, -3, -7}; {5, -7, -1, 5, -1, -1}; {5, 5, -7, -1, -1, 1}; {-1, -7, 5, 5, -1, -3}; {-1, 5, -5, -5, -5, 1}.

[0305] The first sequence set includes 32 groups of first sequences. Some of these 32 groups of first sequences satisfy the conditions in the above property 2, and the cross - correlation of these 32 groups of first sequences has no obvious difference from the cross - correlation of the CGS sequence. The correspondence between these 32 groups of first sequences and the group number u is not restricted. For example, the correspondence between these 32 groups of first sequences and the group number u is shown in Table 5:

[0306] Table 5

[0307]

[0308]

[0309] Through the above design, the autocorrelation of the generated CPM sequence satisfies the above property 1, the PAPR value of the first signal is less than 0.5, and the flatness in the frequency domain is less than 0.5.

[0310] In a possible implementation, when the modulation index The impulse length L = 4, the modulation dimension M = 8, and the phase response function q(t) is:

[0311]

[0312]

[0313] When the sampling rate N = 2 and the number of sampling blocks J = 6:

[0314] The first sequence {β i} belongs to the first sequence set, and the sequences in the first sequence set include at least one of the following sequences: {-7, 3, 1, -5, 5, 3}; {-3, -7, -3, -7, 1, -5}; {1, 7, 1, 7, -3, 5}; {1, -7, -1, -3, -1, -1}; {3, -5, 5, 3, -1, 1}; {-3, -3, -3, -7, 5, -7}; {1, 1, 5, 3, -3, 5}; {1, -1, -5, 1, 5, -7}; {7, 1, -7, 3, 7, 1}; {-3, -5, -5, -5, -1, 1}; {5, -1, 5, -3, 3, 3}; {-7, -1, -3, -7, 7, -1}; {-5, -3, 3, -3, 1, 1}; {3, 1, 5, -1, -5, 3}; {1, 3, -3, 5, -3, -3}; {-3, 1, -7, -1, 3, -5}; {5, 3, 1, -3, 3, 3}; {-5, -3, -3, 7, -3, -5}; {1, 7, -3, -5, 1, -7}; {-1, -3, 5, -1, 1, 5}; {-1, -7, 3, 3, 5, 3}; {7, -3, -7, 1, 5, -3}; {-7, 3, -1, 1, -5, -3}; {3, 3, -7, 3, -5, 3}; {7, -7, -3, -3, 5, -5}; {5, -1, -5, -5, 5, 1}; {5, -1, -5, -5, 5, 1}; {5, 3, -7, 7, -5, -3}; {-7, -3, 3, -7, 7, 1}; {7, -7, 3, -3, -7, 1}.

[0315] The first sequence set includes 30 groups of first sequences. Some of the 30 groups of first sequences satisfy the conditions in the above property 2, and the cross-correlation of the 30 groups of first sequences has no obvious difference from the cross-correlation of the CGS sequence. The correspondence between the 30 groups of first sequences and the group number u is not restricted. For example, the correspondence between the 30 groups of sequences and the group number u is shown in Table 6.

[0316] Table 6

[0317]

[0318]

[0319] Through the above design, the autocorrelation of the generated CPM sequence satisfies the above Property 1, the PAPR value of the first signal is less than 0.5, and the frequency domain flatness is less than 0.6.

[0320] In a possible implementation, when the modulation index The impulse length L = 3, the modulation dimension M = 8, and the phase response function q(t) is:

[0321]

[0322]

[0323] When the sampling rate N = 2 and the number of sampling blocks J = 6:

[0324] The first sequence {β i} belongs to the first sequence set, and the sequences in the first sequence set include at least one of the following sequences: {-7,7,-7,-1,-7,7}; {5,-1,5,5,5,-3}; {-5,-5,-1,-1,-7,-5}; {-7,7,-3,-7,-7,-7}; {1,5,1,-3,-3,7}; {5,5,-7,3,5,5}; {-7,3,-5,-7,-1,1}; {1,-7,5,-1,1,1}; {1,7,-1,-1,7,3}; {-3,7,-5,-5,-3,-7}; {-7,-1,-5,-3,3,-1}; {-3,7,-3,7,-1,-7}; {-1,-1,-1,7,-7,1}; {-1,-5,-7,-7,-5,-1}; {1,-1,5,5,-5,1}; {3,5,3,-7,3,-7}; {7,-5,-5,-7,7,3}; {-7,-5,1,-1,1,-5}; {5,1,1,5,-1,-3}; {5,-1,-7,1,-7,1}; {3,-7,-1,1,-3,-3}; {-7,-5,-7,-3,5,1}; {7,-3,-3,-3,7,3}; {-7,7,-3,7,-7,-5}; {-1,-3,-1,-5,7,-5}; {-5,5,-7,5,5,5}; {-7,-5,-7,3,5,3}; {7,-7,1,-5,7,-3}; {-3,-5,5,3,5,-5}; {7,-5,-7,5,-5,-3}; {3,-5,-7,-1,7,-5}; {5,-7,-5,7,-3,-5}; {3,-5,7,-1,-7,-5}; {-1,-7,5,-3,-1,7}; {-5,7,-7,-3,7,1}; {3,7,-3,3,-3,-7}.

[0325] The first sequence set includes 36 groups of first sequences. These 36 groups of first sequences meet the conditions in the above-mentioned feature 2, and the cross-correlation of these 36 groups of first sequences has no obvious difference from the cross-correlation of the CGS sequence. The corresponding relationship between these 36 groups of first sequences and the group number u is not restricted. For example, the corresponding relationship between these 36 groups of first sequences and the group number u is shown in Table 7:

[0326] Table 7

[0327] Group number u First sequence 0 {-7,7,-7,-1,-7,7} 1 {5,-1,5,5,5,-3} 2 {-5,-5,-1,-1,-7,-5} 3 {-7,7,-3,-7,-7,-7} 4 {1,5,1,-3,-3,7} 5 {5,5,-7,3,5,5} 6 {-7,3,-5,-7,-1,1} 7 {1,-7,5,-1,1,1} 8 {1,7,-1,-1,7,3} 9 {-3,7,-5,-5,-3,-7} 10 {-7,-1,-5,-3,3,-1} 11 {-3,7,-3,7,-1,-7} 12 {-1,-1,-1,7,-7,1} 13 {-1,-5,-7,-7,-5,-1} 14 {1,-1,5,5,-5,1} 15 {3,5,3,-7,3,-7} 16 {7,-5,-5,-7,7,3} 17 {-7,-5,1,-1,1,-5} 18 {5,1,1,5,-1,-3} 19 {5,-1,-7,1,-7,1} 20 {3,-7,-1,1,-3,-3} 21 {-7,-5,-7,-3,5,1} 22 {7,-3,-3,-3,7,3} 23 {-7,7,-3,7,-7,-5} 24 {-1,-3,-1,-5,7,-5} 25 {-5,5,-7,5,5,5} 26 {-7,-5,-7,3,5,3} 27 {7,-7,1,-5,7,-3} 28 {-3,-5,5,3,5,-5} 29 {7,-5,-7,5,-5,-3} 30 {3,-5,-7,-1,7,-5} 31 {5,-7,-5,7,-3,-5} 32 {3,-5,7,-1,-7,-5} 33 {-1,-7,5,-3,-1,7} 34 {-5,7,-7,-3,7,1} 35 {3,7,-3,3,-3,-7}

[0328] Through the above design, the autocorrelation of the generated CPM sequence satisfies the above-mentioned property 1, the PAPR value of the first signal is less than 0.5, and the frequency-domain flatness is less than 0.5.

[0329] In a possible implementation, when the modulation index The impact length L = 3, the modulation dimension M = 8, and the phase response function q(t) is as follows:

[0330]

[0331]

[0332] When the sampling rate N = 2 and the number of sampling blocks J = 6:

[0333] The first sequence {β i} belongs to the first sequence set, and the sequences in the first sequence set include at least one of the following sequences: {3, 3, -1, -7, -1, -7}; {-3, 5, 5, 5, -5, 1}; {-5, -7, -5, -7, -1, 5}; {1, -5, -7, -5, 3, -5}; {5, 7, -1, 5, -3, 5}; {1, 5, -5, 1, -3, -1}; {-7, -7, -7, -3, -5, 1}; {7, -1, 7, 5, 1, -1}; {-7, 3, -3, 1, -1, -1}; {-3, -5, 3, -7, -1, -7}; {3, 3, 3, -7, 7, 1}; {-3, -7, -7, -5, -1, -7}; {-5, 5, -1, -1, 7, 5}; {5, 5, 3, 5, -1, -7}; {1, -7, -7, -7, 3, -1}; {-7, 1, 5, -1, 5, -3}; {3, -3, 3, -7, 5, -1}; {-7, -1, -5, -3, 3, -5}; {3, -7, -7, -7, 3, 5}; {-1, 7, -3, 3, -3, 7}; {-7, 1, -7, 5, 5, 3}; {-1, 3, -3, -7, -5, 3}; {-1, -5, -1, 5, -7, -1}; {-3, 5, 5, 5, -5, -7}; {-1, -7, -3, -7, -3, 1}; {-5, 1, -5, 3, 3, 3}; {-1, -7, 3, 3, -3, 5}; {-7, -5, 3, -1, -5, 5}; {-5, -5, -5, 5, 5, -5}; {-1, 3, 5, 5, -7, 5}.

[0334] The first sequence set includes 30 groups of first sequences. Some of the 30 groups of first sequences meet the conditions in the above-mentioned feature 2, and the cross-correlation of the 30 groups of first sequences has no obvious difference from the cross-correlation of the CGS sequences. The correspondence between the 30 groups of first sequences and the group number u is not restricted. For example, the correspondence between the 30 groups of first sequences and the group number u is shown in Table 8:

[0335] Table 8

[0336] Group number u First sequence 0 {3,3,-1,-7,-1,-7} 1 {-3,5,5,5,-5,1} 2 {-5,-7,-5,-7,-1,5} 3 {1,-5,-7,-5,3,-5} 4 {5,7,-1,5,-3,5} 5 {1,5,-5,1,-3,-1} 6 {-7,-7,-7,-3,-5,1} 7 {7,-1,7,5,1,-1} 8 {-7,3,-3,1,-1,-1} 9 {-3,-5,3,-7,-1,-7} 10 {3,3,3,-7,7,1} 11 {-3,-7,-7,-5,-1,-7} 12 {-5,5,-1,-1,7,5} 13 {5,5,3,5,-1,-7} 14 {1,-7,-7,-7,3,-1} 15 {-7,1,5,-1,5,-3} 16 {3,-3,3,-7,5,-1} 17 {-7,-1,-5,-3,3,-5} 18 {3,-7,-7,-7,3,5} 19 {-1,7,-3,3,-3,7} 20 {-7,1,-7,5,5,3} 21 {-1,3,-3,-7,-5,3} 22 {-1,-5,-1,5,-7,-1} 23 {-3,5,5,5,-5,-7} 24 {-1,-7,-3,-7,-3,1} 25 {-5,1,-5,3,3,3} 26 {-1,-7,3,3,-3,5} 27 {-7,-5,3,-1,-5,5} 28 {-5,-5,-5,5,5,-5} 29 {-1,3,5,5,-7,5}

[0337] Through the above design, the autocorrelation of the generated CPM sequence satisfies the above property 1, the PAPR value of the first signal is less than 0.5, and the frequency domain flatness is less than 0.5.

[0338] In a possible implementation, when the modulation index The impulse length L = 3, the modulation dimension M = 8, and the phase response function q(t) is:

[0339]

[0340]

[0341]

[0342]

[0343] When the bandwidth B = 0.3, the sampling rate N = 2, and the number of sampling blocks J = 6:

[0344] The first sequence {β ibelongs to the first sequence set, and the sequences in the first sequence set include at least one of the following sequences: {-1, -5, 3, -3, 3, -5}; {7, -1, 7, -1, 7, 5}; {-5, 3, -7, -5, -3, -7}; {-1, 5, -5, 5, -1, 5}; {-5, -1, -7, 1, -7, 3}; {5, 5, -1, 3, -1, 5}; {1, -3, -1, 1, 5, 5}; {-3, -3, -5, -7, -5, -1}; {1, -3, 5, -1, 1, -3}; {-3, 3, -3, -7, 1, -7}; {3, -5, 3, 5, 5, 5}; {3, 3, -7, -5, -3, -7}; {-3, 5, 5, 1, 5, 3}; {1, -5, 1, -5, 5, -5}; {-3, -5, -3, 7, -3, 7}; {1, -1, -5, -7, -5, 1}; {1, -1, 3, -3, 5, 3}; {3, -7, 1, -1, -7, -5}; {-5, -5, 5, 5, 5, 3}; {-7, 5, -7, 3, 3, 3}; {-3, -3, -5, 3, 5, -5}; {5, 5, 5, -7, 7, -7}; {3, -7, -1, -7, -3, -3}; {1, 5, -1, -1, -1, 5}; {-5, -1, 3, -1, 1, 3}; {-7, 1, -5, -5, -5, 5}; {-1, -5, 3, 5, 3, -5}; {-3, 5, -5, -5, -5, 5}; {-5, -5, -1, 5, 3, -5}; {1, -7, 3, 3, -7, -1}; {-1, -3, 3, 1, 5, -5}; {-5, -1, 5, -7, 5, -5}; {3, 3, -3, -7, -3, -3}; {5, -7, 5, -1, -5, -5}; {5, -5, 3, -1, -5, 3}; {-5, 3, 5, -1, 1, -3}; {3, -5, 5, 3, -5, -1}.

[0345] The first sequence set includes 37 groups of first sequences. These 37 groups of first sequences meet the conditions in the above-mentioned feature 2, and the cross-correlation of these 37 groups of first sequences has no obvious difference from the cross-correlation of the CGS sequences. The correspondence between these 37 groups of first sequences and the group number u is not restricted. For example, the correspondence between these 37 groups of first sequences and the group number u is shown in Table 9 as follows:

[0346] Table 9

[0347]

[0348]

[0349] Through the above design, the autocorrelation of the generated CPM sequence meets the above-mentioned property 1, the PAPR value of the first signal is less than 0.5, and the frequency domain flatness is less than 0.5.

[0350] It is understandable that in the embodiments of the present application:

[0351] 1. In the process of Figure 2 , it may include fewer steps or more steps than those shown in the process schematic diagram or described in words.

[0352] 2. In the embodiments of the present application, "receiving a signal from (such as the first communication device) by (such as the second communication device)" can be understood as the source end of the signal being the first communication device and the destination end being the second communication device, which may include the second communication device directly or indirectly receiving the signal from the first communication device. Necessary processing may be performed on the signal between the source end and the destination end of the information transmission, such as format conversion, etc., but the destination end can understand the valid information from the source end. Similar expressions in the present application can be understood similarly and will not be elaborated here.

[0353] In the above embodiments provided by the present application, the method provided by the embodiments of the present application has been introduced from the perspective of the interaction between the first communication device and the second communication device. To implement each function in the method provided by the embodiments of the present application, the first communication device or the second communication device, etc., may include a hardware structure and / or a software module, and implement the above functions in the form of a hardware structure, a software module, or a combination of a hardware structure and a software module. Which way to execute a certain function among the above functions depends on the design constraints of the specific application of the technical solution.

[0354] Figure 3 and Figure 4 are schematic structural diagrams of possible communication devices provided by the embodiments of the present application. These communication devices can implement one or more corresponding functions in the above method embodiments. For example, the functions implemented by the first communication device or the second communication device, etc., may thus achieve the beneficial effects possessed by the above method embodiments.

[0355] As Figure 3 shown, the communication device 30 includes a processing unit 310 and a transceiver unit 320. The communication device 30 is used to implement the functions of the first communication device or the second communication device in the method embodiment shown above. Figure 2 shown above.

[0356] Optionally, the transceiver unit 320 may also be referred to as an output unit, an interface unit, or a communication unit, etc. In a possible implementation manner, the transceiver unit 320 includes at least one of a sending unit or a receiving unit. The sending unit and the receiving unit may be integrated together, or may be two independent units, etc.

[0357] When the communication device 30 is used to implement Figure 2When referring to the functions of the first communication device, specifically:

[0358] A processing unit 310, configured to determine a fourth sequence according to a third sequence, where the third sequence is a sequence after discrete Fourier transform (DFT) of a second sequence, and the second sequence is a discrete sequence obtained by sampling a first sequence through continuous-phase modulation (CPM) modulation; the processing unit 310 is further configured to map the fourth sequence onto X subcarriers to generate a first signal, where X is an integer greater than zero; a transceiver unit 320, configured to transmit the first signal, where the first signal is a signal carrying hybrid automatic repeat request (HARQ) information, or the first signal is a signal carrying scheduling request (SR) information, or the first signal is a demodulation reference signal, or the first signal is a phase tracking reference signal.

[0359] In a possible implementation manner, the second sequence {s n} includes X elements, and s n satisfies:

[0360]

[0361] where n is an integer between 0 and X - 1, exp represents the exponential function with base e, represents the phase of the second sequence, satisfies:

[0362] Or,

[0363]

[0364] where, is taken modulo 2*π, or, is not taken modulo 2*π, h represents the modulation index, L represents the impulse length, N represents the sampling rate, J represents the number of sampling blocks, the values of h, L, N, and J are all real numbers, T represents the symbol period, q(t) represents the phase response function, β i represents an element of the first sequence {β i}, and i is an integer between 0 and J - 1.

[0365] In a possible implementation manner, during the CPM modulation sampling process: the value range of the modulation index h is a real number between 11 / 64 and 11 / 32, the value range of the impulse length L is L > 1, the phase response function q(t) takes a value of 0 when t < 0, takes a fixed value when t ≥ LT, and the sampling rate N and the number of sampling blocks J satisfy: NJ = X.

[0366] In a possible implementation manner, when the modulation index The impact length L = 3, the modulation dimension M = 8, and the phase response function q(t) is as follows:

[0367]

[0368]

[0369] When the sampling rate N = 2 and the number of sampling blocks J = 6:

[0370] The first sequence {β i} belongs to the first sequence set, and the sequences in the first sequence set include at least one of the following sequences: {-1, 1, 5, 3, -1, -7}; {-3, -1, 1, 5, -5, 1}; {-7, -5, -1, -3, -3, -5}; {3, -1, 3, 5, 5, 1}; {-7, -7, -7, -5, 5, -3}; {-1, -1, -1, -7, -3, -3}; {5, 5, 3, -5, 3, 5}; {-7, 7, -3, 7, -3, 7}; {-5, -5, -3, -7, -3, 7}; {-5, 3, -7, 1, -5, 5}; {-5, -7, -3, -5, -7, 3}; {5, 3, 3, 3, -7, 1}; {-1, 1, 5, 3, -3, 3}; {-3, -3, -7, 5, -5, -3}; {3, 5, 5, 5, -5, -5}; {-1, 3, -3, -7, -3, 3}; {7, -1, -1, -1, 7, -3}; {5, -7, 7, -7, 5, 5}; {-7, -5, 5, -7, 3, -5}; {-5, 1, -3, -5, 7, -3}; {7, -3, 7, -3, -7, -1}; {-5, 3, -1, -5, 7, 1}; {-7, -5, -7, 1, -1, 3}; {3, -7, 3, 5, 3, -7}; {5, -3, -5, -1, -7, 3}; {-1, 1, 1, 3, -7, 3}; {-3, -7, 3, -1, -3, 3}; {5, -3, 7, -3, -3, -3}; {3, -5, -5, -5, -1, 5}; {-7, -1, -5, 1, -1, 5}; {7, -1, -3, 7, -5, -5}; {-5, -1, 1, -7, -3, 7}; {-5, -3, 7, 1, -1, 1}.

[0371] In a possible implementation, when the modulation index The impact length L = 3, the modulation dimension M = 8, and the phase response function q(t) is as follows:

[0372]

[0373]

[0374] When the sampling rate N = 2 and the number of sampling blocks J = 6:

[0375] The first sequence {β i} belongs to the first sequence set, and the sequences in the first sequence set include at least one of the following sequences: {-1, -3, 5, -1, 7, -7}; {7, 3, 5, 7, -5, 5}; {-3, -5, -5, -7, 5, -7}; {-7, -7, -7, 3, 3, -7}; {7, 7, 7, -1, -5, 7}; {-7, -3, -1, -7, 3, -7}; {-1, 7, -1, 3, -3, 7}; {3, -5, -7, 3, -3, -3}; {7, 5, -3, 7, 1, 5}; {7, 7, 5, -7, -7, 7}; {-3, -1, 3, 3, -5, 1}; {-7, 5, 5, 3, 7, -3}; {3, -7, -7, -7, 1, -5}; {-3, -7, 1, 7, -3, -5}; {5, 7, 1, -3, 7, -5}; {-1, -5, 7, -7, -1, -5}; {-7, -7, -7, 7, -3, 7}; {7, 1, -7, -7, -7, 3}; {-1, -3, 3, 7, 7, -3}; {7, 5, -7, -3, -7, 5}; {7, -5, -7, -1, 7, -1}; {-1, -7, 5, -1, -1, 5}; {-5, 1, -7, 3, 7, 1}; {-3, -7, 5, -3, 5, -7}; {3, 5, -3, 7, 5, -7}; {-3, -5, 5, -7, 3, 7}; {-7, 1, 5, -5, -7, 3}; {3, -5, 7, -5, -7, 7}; {-7, 7, -1, -5, 1, -7}; {7, -7, -5, 1, 1, 5}.

[0376] In a possible implementation, when the modulation index The impulse length L = 3, the modulation dimension M = 8, and the phase response function q(t) is:

[0377]

[0378]

[0379] When the sampling rate N = 2 and the number of sampling blocks J = 6:

[0380] The first sequence {β i} belongs to the first sequence set, and the sequences in the first sequence set include at least one of the following sequences: {-5,1,3,3,3,1}; {-3,-5,-5,-5,-3,-3}; {-1,3,-3,1,-3,3}; {-3,-1,-1,-3,1,-5}; {3,5,-1,1,-1,5}; {3,-1,-1,1,3,1}; {-1,-5,-3,-5,-1,-3}; {-3,-5,-5,-5,-3,3}; {3,1,5,-3,3,3}; {-3,-5,-1,-5,-3,5}; {1,-5,1,-3,3,-3}; {5,-1,-5,-1,5,3}; {-1,3,1,3,-1,-5}; {-1,-3,-3,-1,1,-5}; {3,-3,3,-1,1,3}; {-5,-3,-1,1,-1,-3}; {5,-7,3,-7,5,-5}; {-1,-3,-3,1,5,-5}; {1,-5,3,-5,3,3}; {-5,5,-3,5,-5,-3}; {1,-1,5,-5,3,3}; {3,3,3,-1,-5,-3}; {-1,-5,3,-5,-1,3}; {1,-5,1,3,-3,3}; {-1,-5,-1,3,-5,3}; {-3,-5,-3,5,-7,1}; {-1,5,-3,-1,-3,3}; {-3,5,1,-1,-5,-3}; {-1,-5,-3,5,-3,1}; {-3,5,-1,-5,-3,1}; {1,1,-5,1,5,-3}; {5,1,-5,1,1,-3}; {5,-1,-5,-1,1,-5}; {-5,3,-1,3,-7,1}.

[0381] In a possible implementation, when the modulation index The impulse length L = 2, the modulation dimension M = 8, and the phase response function q(t) is:

[0382]

[0383]

[0384] When the sampling rate N = 2 and the number of sampling blocks J = 6:

[0385] The first sequence {β i} belongs to the first sequence set, and the sequences in the first sequence set include at least one of the following sequences: {1, 5, 5, -5, -1, -5}; {3, -7, -7, -1, 3, -1}; {7, 7, 5, -3, 5, 1}; {-7, -7, -1, -3, -7, -7}; {7, 7, 1, 7, 1, -5}; {-7, -3, -5, 1, -5, -3}; {1, 3, -1, -3, 1, 1}; {7, 7, 5, 3, -5, 5}; {-1, -7, 1, -1, 1, -5}; {3, -7, -7, -5, -7, 3}; {-3, 3, 1, 5, 1, 3}; {-3, -7, -7, 1, -5, -1}; {7, 7, 5, -5, -7, 5}; {5, 5, -5, -3, 5, 3}; {-3, 1, -3, 5, 7, 3}; {-7, -1, -7, -1, 5, -1}; {3, -3, 5, 5, 1, -1}; {-3, -3, -3, -1, -5, 5}; {-7, -7, -5, 1, -1, -3}; {5, -5, -7, -7, 3, 1}; {-5, -1, -7, -7, 3, -5}; {5, 3, 5, -1, -1, 1}; {-7, -7, 1, 5, 7, -1}; {5, -5, -3, -1, 5, -1}; {3, -3, -1, 3, -7, -5}; {-7, -3, -5, -3, 3, -7}; {3, -5, -1, 3, 1, -1}; {-7, -5, -5, 5, 5, -5}; {5, -5, -1, -7, -7, 5}; {-3, -1, 1, 3, -7, -3}.

[0386] In a possible implementation, when the modulation index The impulse length L = 2, the modulation dimension M = 8, and the phase response function q(t) is:

[0387]

[0388]

[0389] When the sampling rate N = 2 and the number of sampling blocks J = 6:

[0390] The first sequence {β i} belongs to the first sequence set, and the sequences in the first sequence set include at least one of the following sequences: {3, -1, -7, -1, -3, -1}; {7, 7, 7, 7, 7, 1}; {-7, -7, -5, 5, -1, 3}; {3, 3, -3, 1, 3, 5}; {-5, -3, -7, -7, 1, -1}; {-7, 5, 5, 5, 7, -5}; {-1, -1, -1, 5, -1, -3}; {-5, 5, 7, 7, 7, 1}; {-7, -5, -3, -7, 5, -7}; {1, 7, 7, 1, 5, 3}; {5, -7, -7, -7, -7, 1}; {-1, -1, -7, -1, -1, -3}; {7, 7, 1, 1, 1, 7}; {5, 5, -5, -7, -3, -7}; {7, 1, 7, 7, -3, 5}; {1, -7, -7, -7, -1, -3}; {-3, -3, -1, 3, -1, 5}; {-7, 3, 3, 3, 3, -7}; {-7, -1, -7, 5, 5, 5}; {3, -3, 5, 7, -1, -1}; {-7, 3, -3, 3, -7, -1}; {5, 7, 5, -3, 1, -3}; {5, -5, -1, -7, -7, 5}; {-1, -1, -7, -1, 5, -7}; {1, -3, 5, -7, -7, 1}; {7, 7, 1, 5, -5, -3}; {5, 1, 5, -7, -1, -1}; {-7, 5, 7, 5, -3, -7}; {5, -7, -1, 5, -1, -1}; {5, 5, -7, -1, -1, 1}; {-1, -7, 5, 5, -1, -3}; {-1, 5, -5, -5, -5, 1}.

[0391] In a possible implementation, when the modulation index The impulse length L = 4, the modulation dimension M = 8, and the phase response function q(t) is:

[0392]

[0393]

[0394] When the sampling rate N = 2 and the number of sampling blocks J = 6:

[0395] The first sequence {β ibelongs to the first sequence set, and the sequences in the first sequence set include at least one of the following sequences: {-7, 3, 1, -5, 5, 3}; {-3, -7, -3, -7, 1, -5}; {1, 7, 1, 7, -3, 5}; {1, -7, -1, -3, -1, -1}; {3, -5, 5, 3, -1, 1}; {-3, -3, -3, -7, 5, -7}; {1, 1, 5, 3, -3, 5}; {1, -1, -5, 1, 5, -7}; {7, 1, -7, 3, 7, 1}; {-3, -5, -5, -5, -1, 1}; {5, -1, 5, -3, 3, 3}; {-7, -1, -3, -7, 7, -1}; {-5, -3, 3, -3, 1, 1}; {3, 1, 5, -1, -5, 3}; {1, 3, -3, 5, -3, -3}; {-3, 1, -7, -1, 3, -5}; {5, 3, 1, -3, 3, 3}; {-5, -3, -3, 7, -3, -5}; {1, 7, -3, -5, 1, -7}; {-1, -3, 5, -1, 1, 5}; {-1, -7, 3, 3, 5, 3}; {7, -3, -7, 1, 5, -3}; {-7, 3, -1, 1, -5, -3}; {3, 3, -7, 3, -5, 3}; {7, -7, -3, -3, 5, -5}; {5, -1, -5, -5, 5, 1}; {-5, -3, 1, 7, -3, -3}; {5, 3, -7, 7, -5, -3}; {-7, -3, 3, -7, 7, 1}; {7, -7, 3, -3, -7, 1}.

[0396] In a possible implementation, when the modulation index The impulse length L = 3, the modulation dimension M = 8, and the phase response function q(t) is:

[0397]

[0398]

[0399] When the sampling rate N = 2 and the number of sampling blocks J = 6:

[0400] The first sequence {β i} belongs to the first sequence set, and the sequences in the first sequence set include at least one of the following sequences: {-7,7,-7,-1,-7,7}; {5,-1,5,5,5,-3}; {-5,-5,-1,-1,-7,-5}; {-7,7,-3,-7,-7,-7}; {1,5,1,-3,-3,7}; {5,5,-7,3,5,5}; {-7,3,-5,-7,-1,1}; {1,-7,5,-1,1,1}; {1,7,-1,-1,7,3}; {-3,7,-5,-5,-3,-7}; {-7,-1,-5,-3,3,-1}; {-3,7,-3,7,-1,-7}; {-1,-1,-1,7,-7,1}; {-1,-5,-7,-7,-5,-1}; {1,-1,5,5,-5,1}; {3,5,3,-7,3,-7}; {7,-5,-5,-7,7,3}; {-7,-5,1,-1,1,-5}; {5,1,1,5,-1,-3}; {5,-1,-7,1,-7,1}; {3,-7,-1,1,-3,-3}; {-7,-5,-7,-3,5,1}; {7,-3,-3,-3,7,3}; {-7,7,-3,7,-7,-5}; {-1,-3,-1,-5,7,-5}; {-5,5,-7,5,5,5}; {-7,-5,-7,3,5,3}; {7,-7,1,-5,7,-3}; {-3,-5,5,3,5,-5}; {7,-5,-7,5,-5,-3}; {3,-5,-7,-1,7,-5}; {5,-7,-5,7,-3,-5}; {3,-5,7,-1,-7,-5}; {-1,-7,5,-3,-1,7}; {-5,7,-7,-3,7,1}; {3,7,-3,3,-3,-7}.

[0401] In a possible implementation, when the modulation index The impulse length L = 3, the modulation dimension M = 8, and the phase response function q(t) is:

[0402]

[0403]

[0404] When the sampling rate N = 2 and the number of sampling blocks J = 6:

[0405] The first sequence {β i} belongs to the first sequence set, and the sequences in the first sequence set include at least one of the following sequences: {3, 3, -1, -7, -1, -7}; {-3, 5, 5, 5, -5, 1}; {-5, -7, -5, -7, -1, 5}; {1, -5, -7, -5, 3, -5}; {5, 7, -1, 5, -3, 5}; {1, 5, -5, 1, -3, -1}; {-7, -7, -7, -3, -5, 1}; {7, -1, 7, 5, 1, -1}; {-7, 3, -3, 1, -1, -1}; {-3, -5, 3, -7, -1, -7}; {3, 3, 3, -7, 7, 1}; {-3, -7, -7, -5, -1, -7}; {-5, 5, -1, -1, 7, 5}; {5, 5, 3, 5, -1, -7}; {1, -7, -7, -7, 3, -1}; {-7, 1, 5, -1, 5, -3}; {3, -3, 3, -7, 5, -1}; {-7, -1, -5, -3, 3, -5}; {3, -7, -7, -7, 3, 5}; {-1, 7, -3, 3, -3, 7}; {-7, 1, -7, 5, 5, 3}; {-1, 3, -3, -7, -5, 3}; {-1, -5, -1, 5, -7, -1}; {-3, 5, 5, 5, -5, -7}; {-1, -7, -3, -7, -3, 1}; {-5, 1, -5, 3, 3, 3}; {-1, -7, 3, 3, -3, 5}; {-7, -5, 3, -1, -5, 5}; {-5, -5, -5, 5, 5, -5}; {-1, 3, 5, 5, -7, 5}.

[0406] In a possible implementation, when the modulation index The impulse length L = 3, the modulation dimension M = 8, and the phase response function q(t) is:

[0407]

[0408]

[0409]

[0410]

[0411] When the bandwidth B = 0.3, the sampling rate N = 2, and the number of sampling blocks J = 6:

[0412] The first sequence {β i} belongs to the first sequence set, and the sequences in the first sequence set include at least one of the following sequences: {-1, -5, 3, -3, 3, -5}; {7, -1, 7, -1, 7, 5}; {-5, 3, -7, -5, -3, -7}; {-1, 5, -5, 5, -1, 5}; {-5, -1, -7, 1, -7, 3}; {5, 5, -1, 3, -1, 5}; {1, -3, -1, 1, 5, 5}; {-3, -3, -5, -7, -5, -1}; {1, -3, 5, -1, 1, -3}; {-3, 3, -3, -7, 1, -7}; {3, -5, 3, 5, 5, 5}; {3, 3, -7, -5, -3, -7}; {-3, 5, 5, 1, 5, 3}; {1, -5, 1, -5, 5, -5}; {-3, -5, -3, 7, -3, 7}; {1, -1, -5, -7, -5, 1}; {1, -1, 3, -3, 5, 3}; {3, -7, 1, -1, -7, -5}; {-5, -5, 5, 5, 5, 3}; {-7, 5, -7, 3, 3, 3}; {-3, -3, -5, 3, 5, -5}; {5, 5, 5, -7, 7, -7}; {3, -7, -1, -7, -3, -3}; {1, 5, -1, -1, -1, 5}; {-5, -1, 3, -1, 1, 3}; {-7, 1, -5, -5, -5, 5}; {-1, -5, 3, 5, 3, -5}; {-3, 5, -5, -5, -5, 5}; {-5, -5, -1, 5, 3, -5}; {1, -7, 3, 3, -7, -1}; {-1, -3, 3, 1, 5, -5}; {-5, -1, 5, -7, 5, -5}; {3, 3, -3, -7, -3, -3}; {5, -7, 5, -1, -5, -5}; {5, -5, 3, -1, -5, 3}; {-5, 3, 5, -1, 1, -3}; {3, -5, 5, 3, -5, -1}.

[0413] In a possible implementation, the fourth sequence includes X elements. When the processing unit 310 maps the fourth sequence to X subcarriers, it is specifically configured to: map the X elements to X consecutive subcarriers respectively; or map the X elements to X non - consecutive and equally - spaced subcarriers respectively.

[0414] When the communication device 30 is used to implement Figure 2 the function of the second communication device in the

[0415] A transceiver unit 320, configured to receive a first signal, where the first signal is a signal carrying hybrid automatic repeat request (HARQ) information, or the first signal is a signal carrying scheduling request (SR) information, or the first signal is a demodulation reference signal, or the first signal is a phase tracking reference signal; a processing unit 310, configured to perform orthogonal frequency division multiplexing (OFDM) demodulation on the first signal to determine a fourth sequence; the processing unit 310 is further configured to determine a first result according to the fourth sequence and a third sequence, where the first result is a decoding result or the first result is a channel estimation result, the third sequence is a sequence after discrete Fourier transform (DFT) of a second sequence, and the second sequence is a discrete sequence obtained by sampling a first sequence through continuous phase modulation (CPM) modulation.

[0416] In a possible implementation manner, the second sequence {s n} includes X elements, and s n satisfies:

[0417]

[0418] where n is an integer between 0 and X - 1, X is an integer greater than zero, exp represents the exponential function with base e, represents the phase of the second sequence, satisfies:

[0419] Or,

[0420]

[0421] where, takes modulo 2*π or does not take modulo 2*π, h represents the modulation index, L represents the impulse length, N represents the sampling rate, J represents the number of sampling blocks, the values of h, L, N, and J are all real numbers, T represents the symbol period, q(t) represents the phase response function, and β i represents an element in the first sequence {β i}, and i is an integer between 0 and J - 1.

[0422] In a possible implementation manner, during the CPM modulation sampling process: the value range of the modulation index h is a real number between 11 / 64 and 11 / 32, the value range of the impulse length L is L > 1, the phase response function q(t) takes a value of 0 when t < 0 and takes a fixed value when t ≥ LT, and the sampling rate N and the number of sampling blocks J satisfy: NJ = X.

[0423] In a possible implementation manner, when the modulation index The impact length L = 3, the modulation dimension M = 8, and the phase response function q(t) is as follows:

[0424]

[0425]

[0426] When the sampling rate N = 2 and the number of sampling blocks J = 6:

[0427] The first sequence {β i} belongs to the first sequence set, and the sequences in the first sequence set include at least one of the following sequences: {-1, 1, 5, 3, -1, -7}; {-3, -1, 1, 5, -5, 1}; {-7, -5, -1, -3, -3, -5}; {3, -1, 3, 5, 5, 1}; {-7, -7, -7, -5, 5, -3}; {-1, -1, -1, -7, -3, -3}; {5, 5, 3, -5, 3, 5}; {-7, 7, -3, 7, -3, 7}; {-5, -5, -3, -7, -3, 7}; {-5, 3, -7, 1, -5, 5}; {-5, -7, -3, -5, -7, 3}; {5, 3, 3, 3, -7, 1}; {-1, 1, 5, 3, -3, 3}; {-3, -3, -7, 5, -5, -3}; {3, 5, 5, 5, -5, -5}; {-1, 3, -3, -7, -3, 3}; {7, -1, -1, -1, 7, -3}; {5, -7, 7, -7, 5, 5}; {-7, -5, 5, -7, 3, -5}; {-5, 1, -3, -5, 7, -3}; {7, -3, 7, -3, -7, -1}; {-5, 3, -1, -5, 7, 1}; {-7, -5, -7, 1, -1, 3}; {3, -7, 3, 5, 3, -7}; {5, -3, -5, -1, -7, 3}; {-1, 1, 1, 3, -7, 3}; {-3, -7, 3, -1, -3, 3}; {5, -3, 7, -3, -3, -3}; {3, -5, -5, -5, -1, 5}; {-7, -1, -5, 1, -1, 5}; {7, -1, -3, 7, -5, -5}; {-5, -1, 1, -7, -3, 7}; {-5, -3, 7, 1, -1, 1}.

[0428] In a possible implementation, when the modulation index The impact length L = 3, the modulation dimension M = 8, and the phase response function q(t) is as follows:

[0429]

[0430]

[0431] When the sampling rate N = 2 and the number of sampling blocks J = 6:

[0432] The first sequence {β i} belongs to the first sequence set, and the sequences in the first sequence set include at least one of the following sequences: {-1, -3, 5, -1, 7, -7}; {7, 3, 5, 7, -5, 5}; {-3, -5, -5, -7, 5, -7}; {-7, -7, -7, 3, 3, -7}; {7, 7, 7, -1, -5, 7}; {-7, -3, -1, -7, 3, -7}; {-1, 7, -1, 3, -3, 7}; {3, -5, -7, 3, -3, -3}; {7, 5, -3, 7, 1, 5}; {7, 7, 5, -7, -7, 7}; {-3, -1, 3, 3, -5, 1}; {-7, 5, 5, 3, 7, -3}; {3, -7, -7, -7, 1, -5}; {-3, -7, 1, 7, -3, -5}; {5, 7, 1, -3, 7, -5}; {-1, -5, 7, -7, -1, -5}; {-7, -7, -7, 7, -3, 7}; {7, 1, -7, -7, -7, 3}; {-1, -3, 3, 7, 7, -3}; {7, 5, -7, -3, -7, 5}; {7, -5, -7, -1, 7, -1}; {-1, -7, 5, -1, -1, 5}; {-5, 1, -7, 3, 7, 1}; {-3, -7, 5, -3, 5, -7}; {3, 5, -3, 7, 5, -7}; {-3, -5, 5, -7, 3, 7}; {-7, 1, 5, -5, -7, 3}; {3, -5, 7, -5, -7, 7}; {-7, 7, -1, -5, 1, -7}; {7, -7, -5, 1, 1, 5}.

[0433] In a possible implementation, when the modulation index The impulse length L = 3, the modulation dimension M = 8, and the phase response function q(t) is:

[0434]

[0435]

[0436] When the sampling rate N = 2 and the number of sampling blocks J = 6:

[0437] The first sequence {β i} belongs to the first sequence set, and the sequences in the first sequence set include at least one of the following sequences: {-5,1,3,3,3,1}; {-3,-5,-5,-5,-3,-3}; {-1,3,-3,1,-3,3}; {-3,-1,-1,-3,1,-5}; {3,5,-1,1,-1,5}; {3,-1,-1,1,3,1}; {-1,-5,-3,-5,-1,-3}; {-3,-5,-5,-5,-3,3}; {3,1,5,-3,3,3}; {-3,-5,-1,-5,-3,5}; {1,-5,1,-3,3,-3}; {5,-1,-5,-1,5,3}; {-1,3,1,3,-1,-5}; {-1,-3,-3,-1,1,-5}; {3,-3,3,-1,1,3}; {-5,-3,-1,1,-1,-3}; {5,-7,3,-7,5,-5}; {-1,-3,-3,1,5,-5}; {1,-5,3,-5,3,3}; {-5,5,-3,5,-5,-3}; {1,-1,5,-5,3,3}; {3,3,3,-1,-5,-3}; {-1,-5,3,-5,-1,3}; {1,-5,1,3,-3,3}; {-1,-5,-1,3,-5,3}; {-3,-5,-3,5,-7,1}; {-1,5,-3,-1,-3,3}; {-3,5,1,-1,-5,-3}; {-1,-5,-3,5,-3,1}; {-3,5,-1,-5,-3,1}; {1,1,-5,1,5,-3}; {5,1,-5,1,1,-3}; {5,-1,-5,-1,1,-5}; {-5,3,-1,3,-7,1}.

[0438] In a possible implementation, when the modulation index The impulse length L = 2, the modulation dimension M = 8, and the phase response function q(t) is:

[0439]

[0440]

[0441] When the sampling rate N = 2 and the number of sampling blocks J = 6:

[0442] The first sequence {β i}\ belong to the first sequence set, and the sequences in the first sequence set include at least one of the following sequences: {1, 5, 5, -5, -1, -5}; {3, -7, -7, -1, 3, -1}; {7, 7, 5, -3, 5, 1}; {-7, -7, -1, -3, -7, -7}; {7, 7, 1, 7, 1, -5}; {-7, -3, -5, 1, -5, -3}; {1, 3, -1, -3, 1, 1}; {7, 7, 5, 3, -5, 5}; {-1, -7, 1, -1, 1, -5}; {3, -7, -7, -5, -7, 3}; {-3, 3, 1, 5, 1, 3}; {-3, -7, -7, 1, -5, -1}; {7, 7, 5, -5, -7, 5}; {5, 5, -5, -3, 5, 3}; {-3, 1, -3, 5, 7, 3}; {-7, -1, -7, -1, 5, -1}; {3, -3, 5, 5, 1, -1}; {-3, -3, -3, -1, -5, 5}; {-7, -7, -5, 1, -1, -3}; {5, -5, -7, -7, 3, 1}; {-5, -1, -7, -7, 3, -5}; {5, 3, 5, -1, -1, 1}; {-7, -7, 1, 5, 7, -1}; {5, -5, -3, -1, 5, -1}; {3, -3, -1, 3, -7, -5}; {-7, -3, -5, -3, 3, -7}; {3, -5, -1, 3, 1, -1}; {-7, -5, -5, 5, 5, -5}; {5, -5, -1, -7, -7, 5}; {-3, -1, 1, 3, -7, -3}.

[0443] In a possible implementation, when the modulation index The impulse length L = 2, the modulation dimension M = 8, and the phase response function q(t) is:

[0444]

[0445]

[0446] When the sampling rate N = 2 and the number of sampling blocks J = 6:

[0447] The first sequence {β i} belongs to the first sequence set, and the sequences in the first sequence set include at least one of the following sequences: {3, -1, -7, -1, -3, -1}; {7, 7, 7, 7, 7, 1}; {-7, -7, -5, 5, -1, 3}; {3, 3, -3, 1, 3, 5}; {-5, -3, -7, -7, 1, -1}; {-7, 5, 5, 5, 7, -5}; {-1, -1, -1, 5, -1, -3}; {-5, 5, 7, 7, 7, 1}; {-7, -5, -3, -7, 5, -7}; {1, 7, 7, 1, 5, 3}; {5, -7, -7, -7, -7, 1}; {-1, -1, -7, -1, -1, -3}; {7, 7, 1, 1, 1, 7}; {5, 5, -5, -7, -3, -7}; {7, 1, 7, 7, -3, 5}; {1, -7, -7, -7, -1, -3}; {-3, -3, -1, 3, -1, 5}; {-7, 3, 3, 3, 3, -7}; {-7, -1, -7, 5, 5, 5}; {3, -3, 5, 7, -1, -1}; {-7, 3, -3, 3, -7, -1}; {5, 7, 5, -3, 1, -3}; {5, -5, -1, -7, -7, 5}; {-1, -1, -7, -1, 5, -7}; {1, -3, 5, -7, -7, 1}; {7, 7, 1, 5, -5, -3}; {5, 1, 5, -7, -1, -1}; {-7, 5, 7, 5, -3, -7}; {5, -7, -1, 5, -1, -1}; {5, 5, -7, -1, -1, 1}; {-1, -7, 5, 5, -1, -3}; {-1, 5, -5, -5, -5, 1}.

[0448] In a possible implementation, when the modulation index The impulse length L = 4, the modulation dimension M = 8, and the phase response function q(t) is:

[0449]

[0450]

[0451] When the sampling rate N = 2 and the number of sampling blocks J = 6:

[0452] The first sequence {β ibelongs to the first sequence set, and the sequences in the first sequence set include at least one of the following sequences: {-7, 3, 1, -5, 5, 3}; {-3, -7, -3, -7, 1, -5}; {1, 7, 1, 7, -3, 5}; {1, -7, -1, -3, -1, -1}; {3, -5, 5, 3, -1, 1}; {-3, -3, -3, -7, 5, -7}; {1, 1, 5, 3, -3, 5}; {1, -1, -5, 1, 5, -7}; {7, 1, -7, 3, 7, 1}; {-3, -5, -5, -5, -1, 1}; {5, -1, 5, -3, 3, 3}; {-7, -1, -3, -7, 7, -1}; {-5, -3, 3, -3, 1, 1}; {3, 1, 5, -1, -5, 3}; {1, 3, -3, 5, -3, -3}; {-3, 1, -7, -1, 3, -5}; {5, 3, 1, -3, 3, 3}; {-5, -3, -3, 7, -3, -5}; {1, 7, -3, -5, 1, -7}; {-1, -3, 5, -1, 1, 5}; {-1, -7, 3, 3, 5, 3}; {7, -3, -7, 1, 5, -3}; {-7, 3, -1, 1, -5, -3}; {3, 3, -7, 3, -5, 3}; {7, -7, -3, -3, 5, -5}; {5, -1, -5, -5, 5, 1}; {-5, -3, 1, 7, -3, -3}; {5, 3, -7, 7, -5, -3}; {-7, -3, 3, -7, 7, 1}; {7, -7, 3, -3, -7, 1}.

[0453] In a possible implementation, when the modulation index the impulse length L = 3, the modulation dimension M = 8, and the phase response function q(t) is:

[0454]

[0455]

[0456] When the sampling rate N = 2 and the number of sampling blocks J = 6:

[0457] The first sequence {β i} belongs to the first sequence set, and the sequences in the first sequence set include at least one of the following sequences: {-7,7,-7,-1,-7,7}; {5,-1,5,5,5,-3}; {-5,-5,-1,-1,-7,-5}; {-7,7,-3,-7,-7,-7}; {1,5,1,-3,-3,7}; {5,5,-7,3,5,5}; {-7,3,-5,-7,-1,1}; {1,-7,5,-1,1,1}; {1,7,-1,-1,7,3}; {-3,7,-5,-5,-3,-7}; {-7,-1,-5,-3,3,-1}; {-3,7,-3,7,-1,-7}; {-1,-1,-1,7,-7,1}; {-1,-5,-7,-7,-5,-1}; {1,-1,5,5,-5,1}; {3,5,3,-7,3,-7}; {7,-5,-5,-7,7,3}; {-7,-5,1,-1,1,-5}; {5,1,1,5,-1,-3}; {5,-1,-7,1,-7,1}; {3,-7,-1,1,-3,-3}; {-7,-5,-7,-3,5,1}; {7,-3,-3,-3,7,3}; {-7,7,-3,7,-7,-5}; {-1,-3,-1,-5,7,-5}; {-5,5,-7,5,5,5}; {-7,-5,-7,3,5,3}; {7,-7,1,-5,7,-3}; {-3,-5,5,3,5,-5}; {7,-5,-7,5,-5,-3}; {3,-5,-7,-1,7,-5}; {5,-7,-5,7,-3,-5}; {3,-5,7,-1,-7,-5}; {-1,-7,5,-3,-1,7}; {-5,7,-7,-3,7,1}; {3,7,-3,3,-3,-7}.

[0458] In a possible implementation, when the modulation index The impulse length L = 3, the modulation dimension M = 8, and the phase response function q(t) is:

[0459]

[0460]

[0461] When the sampling rate N = 2 and the number of sampling blocks J = 6:

[0462] The first sequence {β i}\ belongs to the first sequence set, and the sequences in the first sequence set include at least one of the following sequences: {3, 3, -1, -7, -1, -7}; {-3, 5, 5, 5, -5, 1}; {-5, -7, -5, -7, -1, 5}; {1, -5, -7, -5, 3, -5}; {5, 7, -1, 5, -3, 5}; {1, 5, -5, 1, -3, -1}; {-7, -7, -7, -3, -5, 1}; {7, -

[0463] 1, 7, 5, 1, -1}; {-7, 3, -3, 1, -1, -1}; {-3, -5, 3, -7, -1, -7}; {3, 3, 3, -7, 7, 1}; {-3, -7, -7, -5, -1, -7}; {-5, 5, -1, -1, 7, 5}; {5, 5, 3, 5, -1, -7}; {1, -7, -7, -7, 3, -1}; {-7, 1, 5, -1, 5, -3}; {3, -3, 3, -7, 5, -1}; {-7, -1, -5, -3, 3, -5}; {3, -7, -7, -7, 3, 5}; {-1, 7, -3, 3, -3, 7}; {-7, 1, -7, 5, 5, 3}; {-1, 3, -3, -7, -5, 3}; {-1, -5, -1, 5, -7, -1}; {-3, 5, 5, 5, -5, -7}; {-1, -7, -3, -7, -3, 1}; {-5, 1, -5, 3, 3, 3}; {-1, -7, 3, 3, -3, 5}; {-7, -5, 3, -1, -5, 5}; {-5, -5, -5, 5, 5, -5}; {-1, 3, 5, 5, -7, 5}.

[0464] In a possible implementation, when the modulation index The impulse length L = 3, the modulation dimension M = 8, and the phase response function q(t) is:

[0465]

[0466]

[0467]

[0468]

[0469] When the bandwidth B = 0.3, the sampling rate N = 2, and the number of sampling blocks J = 6:

[0470] The first sequence {β i} belongs to the first sequence set, and the sequences in the first sequence set include at least one of the following sequences: {-1, -5, 3, -3, 3, -5}; {7, -1, 7, -1, 7, 5}; {-5, 3, -7, -5, -3, -7}; {-1, 5, -5, 5, -1, 5}; {-5, -1, -7, 1, -7, 3}; {5, 5, -1, 3, -1, 5}; {1, -3, -1, 1, 5, 5}; {-3, -3, -5, -7, -5, -1}; {1, -3, 5, -1, 1, -3}; {-3, 3, -3, -7, 1, -7}; {3, -5, 3, 5, 5, 5}; {3, 3, -7, -5, -3, -7}; {-3, 5, 5, 1, 5, 3}; {1, -5, 1, -5, 5, -5}; {-3, -5, -3, 7, -3, 7}; {1, -1, -5, -7, -5, 1}; {1, -1, 3, -3, 5, 3}; {3, -7, 1, -1, -7, -5}; {-5, -5, 5, 5, 5, 3}; {-7, 5, -7, 3, 3, 3}; {-3, -3, -5, 3, 5, -5}; {5, 5, 5, -7, 7, -7}; {3, -7, -1, -7, -3, -3}; {1, 5, -1, -1, -1, 5}; {-5, -1, 3, -1, 1, 3}; {-7, 1, -5, -5, -5, 5}; {-1, -5, 3, 5, 3, -5}; {-3, 5, -5, -5, -5, 5}; {-5, -5, -1, 5, 3, -5}; {1, -7, 3, 3, -7, -1}; {-1, -3, 3, 1, 5, -5}; {-5, -1, 5, -7, 5, -5}; {3, 3, -3, -7, -3, -3}; {5, -7, 5, -1, -5, -5}; {5, -5, 3, -1, -5, 3}; {-5, 3, 5, -1, 1, -3}; {3, -5, 5, 3, -5, -1}.

[0471] It can be understood that the division of units in the embodiments of the present application is illustrative, merely a logical function division. In actual implementation, there may be other division methods. Additionally, in the embodiments of the present application, each functional unit can be integrated in a physical device (for example, in a processor), or each functional unit can be a separate physical device, or two or more units can be integrated into one unit for implementation. The above integrated units can be implemented in the form of hardware, or in the form of software functional modules, etc.

[0472] Such as Figure 4As shown, the communication device 400 includes a processor 410 and an interface circuit 420. The processor 410 and the interface circuit 420 are coupled to each other. It can be understood that the interface circuit 420 can be a transceiver or an input / output interface. Optionally, the communication device 400 may further include a memory 430, which is used to store instructions executed by the processor 410, or input data required for the processor 410 to run instructions, or data generated after the processor 410 runs instructions.

[0473] When the communication device 400 is used to implement Figure 2 the method shown, the processor 410 is used to implement the functions of the above-mentioned processing unit 310, and the interface circuit 420 is used to implement the functions of the above-mentioned transceiver unit 320.

[0474] When the above communication device is a chip applied to a terminal, the chip implements the functions of the terminal in the above method embodiment. The chip receives information sent by the access network device to the terminal through other modules (such as a radio frequency module or an antenna) in the terminal; or, the chip sends information to other modules (such as a radio frequency module or an antenna) in the terminal, and the information is sent by the terminal to the access network device.

[0475] When the above communication device is a module applied to an access network device, the module implements the functions of the access network device in the above method embodiment. The module receives information sent by the terminal to the access network device from other modules (such as a radio frequency module or an antenna) in the access network device; or, the module sends information to other modules (such as a radio frequency module or an antenna) in the access network device, and the information is sent by the access network device to the terminal.

[0476] It can be understood that the processor in the embodiments of the present application can be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), field programmable gate arrays (FPGAs), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. The general-purpose processor can be a microprocessor or any conventional processor.

[0477] The memory in the embodiments of the present application may be a random access memory (RAM), a flash memory, a read-only memory (ROM), a programmable ROM (PROM), an erasable PROM (EPROM), an electrically erasable PROM (EEPROM), a register, a hard disk, a removable hard disk, a CD-ROM, or any other form of storage medium well known in the art.

[0478] The method steps in the embodiments of the present application may be implemented in hardware or in software instructions executable by a processor. The software instructions may consist of corresponding software modules, and the software modules may be stored in a random access memory, a flash memory, a read-only memory, a programmable ROM, an erasable PROM, an electrically erasable PROM, a register, a hard disk, a removable hard disk, a CD-ROM, or any other form of storage medium well known in the art. An exemplary storage medium is coupled to the processor so that the processor can read information from the storage medium and write information to the storage medium. The storage medium may also be a part of the processor. The processor and the storage medium may be located in an ASIC.

[0479] The embodiments of the present application further provide a communication device, which includes a processor and a memory. The processor and the memory are coupled, and the processor is used to implement Figure 2 the functions of the first communication device or the second communication device in

[0480] The embodiments of the present application further provide a communication device, including a processor, and the processor is used to implement Figure 2 the functions of the first communication device or the second communication device in

[0481] The embodiments of the present application further provide a computer-readable storage medium, and the computer-readable storage medium stores instructions, which may also be referred to as computer programs, computer program codes, etc. The instructions run on a computer, so that the computer executes the Figure 2 functions of the first communication device or the second communication device in the above method embodiments.

[0482] The embodiments of the present application further provide a computer program product, including a computer program or instructions. When the computer program or instructions run on a computer, Figure 2 the methods of the first communication device or the second communication device in

[0483] An embodiment of the present application further provides a chip, which includes a processor. The processor is coupled to a memory, and the processor is configured to execute a computer program or instruction stored in the memory, so that Figure 2 the functions of the first communication device or the second communication device in Figure 2 are implemented.

[0484] An embodiment of the present application further provides a communication system, which includes a first communication device and a second communication device. The first communication device and the second communication device can be respectively configured to implement Figure 2 the functions of the first communication device and the second communication device in Figure 2 .

[0485] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer program or instruction is loaded and executed on a computer, the processes or functions described in the embodiments of the present application are executed in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, a network device, a user device, or other programmable devices. The computer program or instruction can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer program or instruction can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center in a wired or wireless manner. The computer-readable storage medium can be any available medium that can be accessed by a computer, or a data storage device such as a server or data center integrating one or more available media. The available medium can be a magnetic medium, such as a floppy disk, a hard disk, or a magnetic tape; it can also be an optical medium, such as a digital video disc; or it can be a semiconductor medium, such as a solid-state drive. The computer-readable storage medium can be a volatile or non-volatile storage medium, or can include both volatile and non-volatile storage media.

[0486] In various embodiments of the present application, if there is no special description and logical conflict, the terms and / or descriptions between different embodiments are consistent and can be referenced to each other. The technical features in different embodiments can be combined to form new embodiments according to their internal logical relationships.

Claims

1. A signal sending method, characterized in that, Including: Determine a fourth sequence according to a third sequence, where the third sequence is the sequence after the discrete Fourier transform (DFT) of a second sequence, and the second sequence is a discrete sequence obtained by sampling a first sequence through continuous-phase modulation (CPM) modulation; Map the fourth sequence to X subcarriers to generate a first signal, where X is an integer greater than zero; Transmit the first signal, where the first signal is a signal carrying hybrid automatic repeat request (HARQ) information, or the first signal is a signal carrying scheduling request (SR) information, or the first signal is a demodulation reference signal, or the first signal is a phase-tracking reference signal.

2. The method according to claim 1, characterized in that, The second sequence {s n} includes X elements, s n satisfies: where n is an integer between 0 and X-1, and exp represents the exponential function with base e. represents the phase of the second sequence, satisfies: Alternatively, Among them, modulo 2*π, or, not modulo 2*π, h represents the modulation index, L represents the impulse length, N represents the sampling rate, J represents the number of sampling blocks, the values of h, L, N, and J are all real numbers, T represents the symbol period, q(t) represents the phase response function, β i represents the element of the first sequence {β i}, and f is an integer between 0 and J-1.

3. The method according to claim 1 or 2, characterized in that During the CPM modulation sampling process: the modulation index h ranges from a real number between 11 / 64 and 11 / 32, the impulse length L ranges from L > 1, the phase response function q(t) is 0 when t < 0 and takes a fixed value when t ≥ LT, and the sampling rate N and the number of sampling blocks J satisfy: NJ = X.

4. The method according to claim 2 or 3, characterized in that When the modulation index The impulse length L = 3, the modulation dimension M = 8, and the phase response function q(t) is as follows: When the sampling rate N = 2 and the number of sampling blocks J = 6: The first sequence {β i} belongs to a first sequence set, and the sequences in the first sequence set include at least one of the following sequences: {-1, 1, 5, 3, -1, -7}; {-3, -1, 1, 5, -5, 1}; {-7, -5, -1, -3, -3, -5}; {3, -1, 3, 5, 5, 1}; {-7, -7, -7, -5, 5, -3}; {-1, -1, -1, -7, -3, -3}; {5, 5, 3, -5, 3, 5}; {-7, 7, -3, 7, -3, 7}; {-5, -5, -3, -7, -3, 7}; {-5, 3, -7, 1, -5, 5}; {-5, -7, -3, -5, -7, 3}; {5, 3, 3, 3, -7, 1}; {-1, 1, 5, 3, -3, 3}; {-3, -3, -7, 5, -5, -3}; {3, 5, 5, 5, -5, -5}; {-1, 3, -3, -7, -3, 3}; {7, -1, -1, -1, 7, -3}; {5, -7, 7, -7, 5, 5}; {-7, -5, 5, -7, 3, -5}; {-5, 1, -3, -5, 7, -3}; {7, -3, 7, -3, -7, -1}; {-5, 3, -1, -5, 7, 1}; {-7, -5, -7, 1, -1, 3}; {3, -7, 3, 5, 3, -7}; {5, -3, -5, -1, -7, 3}; {-1, 1, 1, 3, -7, 3}; {-3, -7, 3, -1, -3, 3}; {5, -3, 7, -3, -3, -3}; {3, -5, -5, -5, -1, 5}; {-7, -1, -5, 1, -1, 5}; {7, -1, -3, 7, -5, -5}; {-5, -1, 1, -7, -3, 7}; {-5, -3, 7, 1, -1, 1}.

5. The method according to claim 2 or 3, characterized in that, When the modulation index The impulse length L = 3, the modulation dimension M = 8, and the phase response function q(t) is as follows: When the sampling rate N = 2 and the number of sampling blocks J = 6: The first sequence {β i} belongs to a first sequence set, and the sequences in the first sequence set include at least one of the following sequences: {-1, -3, 5, -1, 7, -7}; {7, 3, 5, 7, -5, 5}; {-3, -5, -5, -7, 5, -7}; {-7, -7, -7, 3, 3, -7}; {7, 7, 7, -1, -5, 7}; {-7, -3, -1, -7, 3, -7}; {-1, 7, -1, 3, -3, 7}; {3, -5, -7, 3, -3, -3}; {7, 5, -3, 7, 1, 5}; {7, 7, 5, -7, -7, 7}; {-3, -1, 3, 3, -5, 1}; {-7, 5, 5, 3, 7, -3}; {3, -7, -7, -7, 1, -5}; {-3, -7, 1, 7, -3, -5}; {5, 7, 1, -3, 7, -5}; {-1, -5, 7, -7, -1, -5}; {-7, -7, -7, 7, -3, 7}; {7, 1, -7, -7, -7, 3}; {-1, -3, 3, 7, 7, -3}; {7, 5, -7, -3, -7, 5}; {7, -5, -7, -1, 7, -1}; {-1, -7, 5, -1, -1, 5}; {-5, 1, -7, 3, 7, 1}; {-3, -7, 5, -3, 5, -7}; {3, 5, -3, 7, 5, -7}; {-3, -5, 5, -7, 3, 7}; {-7, 1, 5, -5, -7, 3}; {3, -5, 7, -5, -7, 7}; {-7, 7, -1, -5, 1, -7}; {7, -7, -5, 1, 1, 5}.

6. The method according to claim 2 or 3, characterized in that, When the modulation index The impulse length L = 3, the modulation dimension M = 8, and the phase response function q(t) is as follows: When the sampling rate N = 2 and the number of sampling blocks J = 6: The first sequence {β i} belongs to a first sequence set, and the sequences in the first sequence set include at least one of the following sequences: {-5, 1, 3, 3, 3, 1}; {-3, -5, -5, -5, -3, -3}; {-1, 3, -3, 1, -3, 3}; {-3, -1, -1, -3, 1, -5}; {3, 5, -1, 1, -1, 5}; {3, -1, -1, 1, 3, 1}; {-1, -5, -3, -5, -1, -3}; {-3, -5, -5, -5, -3, 3}; {3, 1, 5, -3, 3, 3}; {-3, -5, -1, -5, -3, 5}; {1, -5, 1, -3, 3, -3}; {5, -1, -5, -1, 5, 3}; {-1, 3, 1, 3, -1, -5}; {-1, -3, -3, -1, 1, -5}; {3, -3, 3, -1, 1, 3}; {-5, -3, -1, 1, -1, -3}; {5, -7, 3, -7, 5, -5}; {-1, -3, -3, 1, 5, -5}; {1, -5, 3, -5, 3, 3}; {-5, 5, -3, 5, -5, -3}; {1, -1, 5, -5, 3, 3}; {3, 3, 3, -1, -5, -3}; {-1, -5, 3, -5, -1, 3}; {1, -5, 1, 3, -3, 3}; {-1, -5, -1, 3, -5, 3}; {-3, -5, -3, 5, -7, 1}; {-1, 5, -3, -1, -3, 3}; {-3, 5, 1, -1, -5, -3}; {-1, -5, -3, 5, -3, 1}; {-3, 5, -1, -5, -3, 1}; {1, 1, -5, 1, 5, -3}; {5, 1, -5, 1, 1, -3}; {5, -1, -5, -1, 1, -5}; {-5, 3, -1, 3, -7, 1}.

7. The method according to claim 2 or 3, characterized in that, When the modulation index The impulse length L = 2, the modulation dimension M = 8, and the phase response function q(t) is as follows: When the sampling rate N = 2 and the number of sampling blocks J = 6: The first sequence {β i} belongs to a first sequence set, and the sequences in the first sequence set include at least one of the following sequences: {1, 5, 5, -5, -1, -5}; {3, -7, -7, -1, 3, -1}; {7, 7, 5, -3, 5, 1}; {-7, -7, -1, -3, -7, -7}; {7, 7, 1, 7, 1, -5}; {-7, -3, -5, 1, -5, -3}; {1, 3, -1, -3, 1, 1}; {7, 7, 5, 3, -5, 5}; {-1, -7, 1, -1, 1, -5}; {3, -7, -7, -5, -7, 3}; {-3, 3, 1, 5, 1, 3}; {-3, -7, -7, 1, -5, -1}; {7, 7, 5, -5, -7, 5}; {5, 5, -5, -3, 5, 3}; {-3, 1, -3, 5, 7, 3}; {-7, -1, -7, -1, 5, -1}; {3, -3, 5, 5, 1, -1}; {-3, -3, -3, -1, -5, 5}; {-7, -7, -5, 1, -1, -3}; {5, -5, -7, -7, 3, 1}; {-5, -1, -7, -7, 3, -5}; {5, 3, 5, -1, -1, 1}; {-7, -7, 1, 5, 7, -1}; {5, -5, -3, -1, 5, -1}; {3, -3, -1, 3, -7, -5}; {-7, -3, -5, -3, 3, -7}; {3, -5, -1, 3, 1, -1}; {-7, -5, -5, 5, 5, -5}; {5, -5, -1, -7, -7, 5}; {-3, -1, 1, 3, -7, -3}.

8. The method according to claim 2 or 3, characterized in that, When the modulation index The impulse length L = 2, the modulation dimension M = 8, and the phase response function q(t) is as follows: When the sampling rate N = 2 and the number of sampling blocks J = 6: The first sequence {β i} belongs to a first sequence set, and the sequences in the first sequence set include at least one of the following sequences: {3, -1, -7, -1, -3, -1}; {7, 7, 7, 7, 7, 1}; {-7, -7, -5, 5, -1, 3}; {3, 3, -3, 1, 3, 5}; {-5, -3, -7, -7, 1, -1}; {-7, 5, 5, 5, 7, -5}; {-1, -1, -1, 5, -1, -3}; {-5, 5, 7, 7, 7, 1}; {-7, -5, -3, -7, 5, -7}; {1, 7, 7, 1, 5, 3}; {5, -7, -7, -7, -7, 1}; {-1, -1, -7, -1, -1, -3}; {7, 7, 1, 1, 1, 7}; {5, 5, -5, -7, -3, -7}; {7, 1, 7, 7, -3, 5}; {1, -7, -7, -7, -1, -3}; {-3, -3, -1, 3, -1, 5}; {-7, 3, 3, 3, 3, -7}; {-7, -1, -7, 5, 5, 5}; {3, -3, 5, 7, -1, -1}; {-7, 3, -3, 3, -7, -1}; {5, 7, 5, -3, 1, -3}; {5, -5, -1, -7, -7, 5}; {-1, -1, -7, -1, 5, -7}; {1, -3, 5, -7, -7, 1}; {7, 7, 1, 5, -5, -3}; {5, 1, 5, -7, -1, -1}; {-7, 5, 7, 5, -3, -7}; {5, -7, -1, 5, -1, -1}; {5, 5, -7, -1, -1, 1}; {-1, -7, 5, 5, -1, -3}; {-1, 5, -5, -5, -5, 1}.

9. The method according to claim 2 or 3, characterized in that, When the modulation index The impulse length L = 4, the modulation dimension M = 8, and the phase response function q(t) is as follows: When the sampling rate N = 2 and the number of sampling blocks J = 6: The first sequence {β i} belongs to a first sequence set, and the sequences in the first sequence set include at least one of the following sequences: {-7, 3, 1, -5, 5, 3}; {-3, -7, -3, -7, 1, -5}; {1, 7, 1, 7, -3, 5}; {1, -7, -1, -3, -1, -1}; {3, -5, 5, 3, -1, 1}; {-3, -3, -3, -7, 5, -7}; {1, 1, 5, 3, -3, 5}; {1, -1, -5, 1, 5, -7}; {7, 1, -7, 3, 7, 1}; {-3, -5, -5, -5, -1, 1}; {5, -1, 5, -3, 3, 3}; {-7, -1, -3, -7, 7, -1}; {-5, -3, 3, -3, 1, 1}; {3, 1, 5, -1, -5, 3}; {1, 3, -3, 5, -3, -3}; {-3, 1, -7, -1, 3, -5}; {5, 3, 1, -3, 3, 3}; {-5, -3, -3, 7, -3, -5}; {1, 7, -3, -5, 1, -7}; {-1, -3, 5, -1, 1, 5}; {-1, -7, 3, 3, 5, 3}; {7, -3, -7, 1, 5, -3}; {-7, 3, -1, 1, -5, -3}; {3, 3, -7, 3, -5, 3}; {7, -7, -3, -3, 5, -5}; {5, -1, -5, -5, 5, 1}; {-5, -3, 1, 7, -3, -3}; {5, 3, -7, 7, -5, -3}; {-7, -3, 3, -7, 7, 1}; {7, -7, 3, -3, -7, 1}.

10. The method according to claim 2 or 3, characterized in that, When the modulation index The impulse length L = 3, the modulation dimension M = 8, and the phase response function q(t) is as follows: When the sampling rate N = 2 and the number of sampling blocks J = 6: The first sequence {β i} belongs to the first sequence set, and the sequences in the first sequence set include at least one of the following sequences: {-7, 7, -7, -1, -7, 7}; {5, -1, 5, 5, 5, -3}; {-5, -5, -1, -1, -7, -5}; {-7, 7, -3, -7, -7, -7}; {1, 5, 1, -3, -3, 7}; {5, 5, -7, 3, 5, 5}; {-7, 3, -5, -7, -1, 1}; {1, -7, 5, -1, 1, 1}; {1, 7, -1, -1, 7, 3}; {-3, 7, -5, -5, -3, -7}; {-7, -1, -5, -3, 3, -1}; {-3, 7, -3, 7, -1, -7}; {-1, -1, -1, 7, -7, 1}; {-1, -5, -7, -7, -5, -1}; {1, -1, 5, 5, -5, 1}; {3, 5, 3, -7, 3, -7}; {7, -5, -5, -7, 7, 3}; {-7, -5, 1, -1, 1, -5}; {5, 1, 1, 5, -1, -3}; {5, -1, -7, 1, -7, 1}; {3, -7, -1, 1, -3, -3}; {-7, -5, -7, -3, 5, 1}; {7, -3, -3, -3, 7, 3}; {-7, 7, -3, 7, -7, -5}; {-1, -3, -1, -5, 7, -5}; {-5, 5, -7, 5, 5, 5}; {-7, -5, -7, 3, 5, 3}; {7, -7, 1, -5, 7, -3}; {-3, -5, 5, 3, 5, -5}; {7, -5, -7, 5, -5, -3}; {3, -5, -7, -1, 7, -5}; {5, -7, -5, 7, -3, -5}; {3, -5, 7, -1, -7, -5}; {-1, -7, 5, -3, -1, 7}; {-5, 7, -7, -3, 7, 1}; {3, 7, -3, 3, -3, -7}.

11. The method according to claim 2 or 3, characterized in that When the modulation index The impulse length L = 3, the modulation dimension M = 8, and the phase response function q(t) is as follows: When the sampling rate N = 2 and the number of sampling blocks J = 6: The first sequence {β i} belongs to a first sequence set, and the sequences in the first sequence set include at least one of the following sequences: {3, 3, -1, -7, -1, -7}; {-3, 5, 5, 5, -5, 1}; {-5, -7, -5, -7, -1, 5}; {1, -5, -7, -5, 3, -5}; {5, 7, -1, 5, -3, 5}; {1, 5, -5, 1, -3, -1}; {-7, -7, -7, -3, -5, 1}; {7, -1, 7, 5, 1, -1}; {-7, 3, -3, 1, -1, -1}; {-3, -5, 3, -7, -1, -7}; {3, 3, 3, -7, 7, 1}; {-3, -7, -7, -5, -1, -7}; {-5, 5, -1, -1, 7, 5}; {5, 5, 3, 5, -1, -7}; {1, -7, -7, -7, 3, -1}; {-7, 1, 5, -1, 5, -3}; {3, -3, 3, -7, 5, -1}; {-7, -1, -5, -3, 3, -5}; {3, -7, -7, -7, 3, 5}; {-1, 7, -3, 3, -3, 7}; {-7, 1, -7, 5, 5, 3}; {-1, 3, -3, -7, -5, 3}; {-1, -5, -1, 5, -7, -1}; {-3, 5, 5, 5, -5, -7}; {-1, -7, -3, -7, -3, 1}; {-5, 1, -5, 3, 3, 3}; {-1, -7, 3, 3, -3, 5}; {-7, -5, 3, -1, -5, 5}; {-5, -5, -5, 5, 5, -5}; {-1, 3, 5, 5, -7, 5}.

12. The method according to claim 2 or 3, characterized in that When the modulation index The impulse length L = 3, the modulation dimension M = 8, and the phase response function q(t) is as follows: When the bandwidth B = 0.3, the sampling rate N = 2, and the number of sampling blocks J = 6: The first sequence {β i} belongs to a first sequence set, and the sequences in the first sequence set include at least one of the following sequences: {-1, -5, 3, -3, 3, -5}; {7, -1, 7, -1, 7, 5}; {-5, 3, -7, -5, -3, -7}; {-1, 5, -5, 5, -1, 5}; {-5, -1, -7, 1, -7, 3}; {5, 5, -1, 3, -1, 5}; {1, -3, -1, 1, 5, 5}; {-3, -3, -5, -7, -5, -1}; {1, -3, 5, -1, 1, -3}; {-3, 3, -3, -7, 1, -7}; {3, -5, 3, 5, 5, 5}; {3, 3, -7, -5, -3, -7}; {-3, 5, 5, 1, 5, 3}; {1, -5, 1, -5, 5, -5}; {-3, -5, -3, 7, -3, 7}; {1, -1, -5, -7, -5, 1}; {1, -1, 3, -3, 5, 3}; {3, -7, 1, -1, -7, -5}; {-5, -5, 5, 5, 5, 3}; {-7, 5, -7, 3, 3, 3}; {-3, -3, -5, 3, 5, -5}; {5, 5, 5, -7, 7, -7}; {3, -7, -1, -7, -3, -3}; {1, 5, -1, -1, -1, 5}; {-5, -1, 3, -1, 1, 3}; {-7, 1, -5, -5, -5, 5}; {-1, -5, 3, 5, 3, -5}; {-3, 5, -5, -5, -5, 5}; {-5, -5, -1, 5, 3, -5}; {1, -7, 3, 3, -7, -1}; {-1, -3, 3, 1, 5, -5}; {-5, -1, 5, -7, 5, -5}; {3, 3, -3, -7, -3, -3}; {5, -7, 5, -1, -5, -5}; {5, -5, 3, -1, -5, 3}; {-5, 3, 5, -1, 1, -3}; {3, -5, 5, 3, -5, -1}.

13. The method according to any one of claims 1 to 12, characterized in that, The fourth sequence includes X elements, and mapping the fourth sequence to X subcarriers includes: Mapping the X elements to X consecutive subcarriers respectively; or Mapping the X elements to X non-consecutive and equally spaced subcarriers respectively.

14. A signal receiving method, characterized in that, Including: Receive a first signal, where the first signal is a signal carrying hybrid automatic repeat request (HARQ) information, or the first signal is a signal carrying scheduling request (SR) information, or the first signal is a demodulation reference signal, or the first signal is a phase-tracking reference signal; Perform orthogonal frequency division multiplexing (OFDM) demodulation on the first signal to determine the fourth sequence; Determine a first result according to the fourth sequence and the third sequence, where the first result is a decoding result or the first result is a channel estimation result, the third sequence is the sequence after the discrete Fourier transform (DFT) of a second sequence, and the second sequence is a discrete sequence obtained by sampling a first sequence through continuous-phase modulation (CPM) modulation.

15. The method according to claim 14, characterized in that, The second sequence {s n} includes X elements, s n satisfies: where n is an integer between 0 and X-1, X is an integer greater than zero, exp represents the exponential function with base e, represents the phase of the second sequence, satisfies: Alternatively, Among them, modulo 2*π, or not modulo 2*π, h represents the modulation index, L represents the impulse length, N represents the sampling rate, J represents the number of sampling blocks, the values of h, L, N, and J are all real numbers, T represents the symbol period, q(t) represents the phase response function, β i represents the element in the first sequence {β i}, and i is an integer between 0 and J-1.

16. The method according to claim 14 or 15, characterized in that During the CPM modulation sampling process: the modulation index h ranges from a real number between 11 / 64 and 11 / 32, the impulse length L ranges from L > 1, the phase response function q(t) is 0 when t < 0 and takes a fixed value when t ≥ LT, and the sampling rate N and the number of sampling blocks J satisfy: NJ = X.

17. The method according to claim 15 or 16, characterized in that, When the modulation index The impulse length L = 3, the modulation dimension M = 8, and the phase response function q(t) is: When the sampling rate N = 2 and the number of sampling blocks J = 6: The first sequence {β i} belongs to a first sequence set, and the sequences in the first sequence set include at least one of the following sequences: {-1, 1, 5, 3, -1, -7}; {-3, -1, 1, 5, -5, 1}; {-7, -5, -1, -3, -3, -5}; {3, -1, 3, 5, 5, 1}; {-7, -7, -7, -5, 5, -3}; {-1, -1, -1, -7, -3, -3}; {5, 5, 3, -5, 3, 5}; {-7, 7, -3, 7, -3, 7}; {-5, -5, -3, -7, -3, 7}; {-5, 3, -7, 1, -5, 5}; {-5, -7, -3, -5, -7, 3}; {5, 3, 3, 3, -7, 1}; {-1, 1, 5, 3, -3, 3}; {-3, -3, -7, 5, -5, -3}; {3, 5, 5, 5, -5, -5}; {-1, 3, -3, -7, -3, 3}; {7, -1, -1, -1, 7, -3}; {5, -7, 7, -7, 5, 5}; {-7, -5, 5, -7, 3, -5}; {-5, 1, -3, -5, 7, -3}; {7, -3, 7, -3, -7, -1}; {-5, 3, -1, -5, 7, 1}; {-7, -5, -7, 1, -1, 3}; {3, -7, 3, 5, 3, -7}; {5, -3, -5, -1, -7, 3}; {-1, 1, 1, 3, -7, 3}; {-3, -7, 3, -1, -3, 3}; {5, -3, 7, -3, -3, -3}; {3, -5, -5, -5, -1, 5}; {-7, -1, -5, 1, -1, 5}; {7, -1, -3, 7, -5, -5}; {-5, -1, 1, -7, -3, 7}; {-5, -3, 7, 1, -1, 1}.

18. The method according to claim 15 or 16, characterized in that, When the modulation index The impulse length L = 3, the modulation dimension M = 8, and the phase response function q(t) is as follows: When the sampling rate N = 2 and the number of sampling blocks J = 6: The first sequence {β i} belongs to a first sequence set, and the sequences in the first sequence set include at least one of the following sequences: {-1, -3, 5, -1, 7, -7}; {7, 3, 5, 7, -5, 5}; {-3, -5, -5, -7, 5, -7}; {-7, -7, -7, 3, 3, -7}; {7, 7, 7, -1, -5, 7}; {-7, -3, -1, -7, 3, -7}; {-1, 7, -1, 3, -3, 7}; {3, -5, -7, 3, -3, -3}; {7, 5, -3, 7, 1, 5}; {7, 7, 5, -7, -7, 7}; {-3, -1, 3, 3, -5, 1}; {-7, 5, 5, 3, 7, -3}; {3, -7, -7, -7, 1, -5}; {-3, -7, 1, 7, -3, -5}; {5, 7, 1, -3, 7, -5}; {-1, -5, 7, -7, -1, -5}; {-7, -7, -7, 7, -3, 7}; {7, 1, -7, -7, -7, 3}; {-1, -3, 3, 7, 7, -3}; {7, 5, -7, -3, -7, 5}; {7, -5, -7, -1, 7, -1}; {-1, -7, 5, -1, -1, 5}; {-5, 1, -7, 3, 7, 1}; {-3, -7, 5, -3, 5, -7}; {3, 5, -3, 7, 5, -7}; {-3, -5, 5, -7, 3, 7}; {-7, 1, 5, -5, -7, 3}; {3, -5, 7, -5, -7, 7}; {-7, 7, -1, -5, 1, -7}; {7, -7, -5, 1, 1, 5}.

19. The method according to claim 15 or 16, characterized in that, When the modulation index The impulse length L = 3, the modulation dimension M = 8, and the phase response function q(t) is as follows: When the sampling rate N = 2 and the number of sampling blocks J = 6: The first sequence {β i} belongs to a first sequence set, and the sequences in the first sequence set include at least one of the following sequences: {-5, 1, 3, 3, 3, 1}; {-3, -5, -5, -5, -3, -3}; {-1, 3, -3, 1, -3, 3}; {-3, -1, -1, -3, 1, -5}; {3, 5, -1, 1, -1, 5}; {3, -1, -1, 1, 3, 1}; {-1, -5, -3, -5, -1, -3}; {-3, -5, -5, -5, -3, 3}; {3, 1, 5, -3, 3, 3}; {-3, -5, -1, -5, -3, 5}; {1, -5, 1, -3, 3, -3}; {5, -1, -5, -1, 5, 3}; {-1, 3, 1, 3, -1, -5}; {-1, -3, -3, -1, 1, -5}; {3, -3, 3, -1, 1, 3}; {-5, -3, -1, 1, -1, -3}; {5, -7, 3, -7, 5, -5}; {-1, -3, -3, 1, 5, -5}; {1, -5, 3, -5, 3, 3}; {-5, 5, -3, 5, -5, -3}; {1, -1, 5, -5, 3, 3}; {3, 3, 3, -1, -5, -3}; {-1, -5, 3, -5, -1, 3}; {1, -5, 1, 3, -3, 3}; {-1, -5, -1, 3, -5, 3}; {-3, -5, -3, 5, -7, 1}; {-1, 5, -3, -1, -3, 3}; {-3, 5, 1, -1, -5, -3}; {-1, -5, -3, 5, -3, 1}; {-3, 5, -1, -5, -3, 1}; {1, 1, -5, 1, 5, -3}; {5, 1, -5, 1, 1, -3}; {5, -1, -5, -1, 1, -5}; {-5, 3, -1, 3, -7, 1}.

20. The method according to claim 15 or 16, characterized in that, When the modulation index The impulse length L = 2, the modulation dimension M = 8, and the phase response function q(t) is as follows: When the sampling rate N = 2 and the number of sampling blocks J = 6: The first sequence {β i} belongs to a first sequence set, and the sequences in the first sequence set include at least one of the following sequences: {1, 5, 5, -5, -1, -5}; {3, -7, -7, -1, 3, -1}; {7, 7, 5, -3, 5, 1}; {-7, -7, -1, -3, -7, -7}; {7, 7, 1, 7, 1, -5}; {-7, -3, -5, 1, -5, -3}; {1, 3, -1, -3, 1, 1}; {7, 7, 5, 3, -5, 5}; {-1, -7, 1, -1, 1, -5}; {3, -7, -7, -5, -7, 3}; {-3, 3, 1, 5, 1, 3}; {-3, -7, -7, 1, -5, -1}; {7, 7, 5, -5, -7, 5}; {5, 5, -5, -3, 5, 3}; {-3, 1, -3, 5, 7, 3}; {-7, -1, -7, -1, 5, -1}; {3, -3, 5, 5, 1, -1}; {-3, -3, -3, -1, -5, 5}; {-7, -7, -5, 1, -1, -3}; {5, -5, -7, -7, 3, 1}; {-5, -1, -7, -7, 3, -5}; {5, 3, 5, -1, -1, 1}; {-7, -7, 1, 5, 7, -1}; {5, -5, -3, -1, 5, -1}; {3, -3, -1, 3, -7, -5}; {-7, -3, -5, -3, 3, -7}; {3, -5, -1, 3, 1, -1}; {-7, -5, -5, 5, 5, -5}; {5, -5, -1, -7, -7, 5}; {-3, -1, 1, 3, -7, -3}.

21. The method according to claim 15 or 16, characterized in that, When the modulation index The impulse length L = 2, the modulation dimension M = 8, and the phase response function q(t) is as follows: When the sampling rate N = 2 and the number of sampling blocks J = 6: The first sequence {β i} belongs to a first sequence set, and the sequences in the first sequence set include at least one of the following sequences: {3, -1, -7, -1, -3, -1}; {7, 7, 7, 7, 7, 1}; {-7, -7, -5, 5, -1, 3}; {3, 3, -3, 1, 3, 5}; {-5, -3, -7, -7, 1, -1}; {-7, 5, 5, 5, 7, -5}; {-1, -1, -1, 5, -1, -3}; {-5, 5, 7, 7, 7, 1}; {-7, -5, -3, -7, 5, -7}; {1, 7, 7, 1, 5, 3}; {5, -7, -7, -7, -7, 1}; {-1, -1, -7, -1, -1, -3}; {7, 7, 1, 1, 1, 7}; {5, 5, -5, -7, -3, -7}; {7, 1, 7, 7, -3, 5}; {1, -7, -7, -7, -1, -3}; {-3, -3, -1, 3, -1, 5}; {-7, 3, 3, 3, 3, -7}; {-7, -1, -7, 5, 5, 5}; {3, -3, 5, 7, -1, -1}; {-7, 3, -3, 3, -7, -1}; {5, 7, 5, -3, 1, -3}; {5, -5, -1, -7, -7, 5}; {-1, -1, -7, -1, 5, -7}; {1, -3, 5, -7, -7, 1}; {7, 7, 1, 5, -5, -3}; {5, 1, 5, -7, -1, -1}; {-7, 5, 7, 5, -3, -7}; {5, -7, -1, 5, -1, -1}; {5, 5, -7, -1, -1, 1}; {-1, -7, 5, 5, -1, -3}; {-1, 5, -5, -5, -5, 1}.

22. The method according to claim 15 or 16, characterized in that, When the modulation index The impulse length L = 4, the modulation dimension M = 8, and the phase response function q(t) is as follows: When the sampling rate N = 2 and the number of sampling blocks J = 6: The first sequence {β i} belongs to a first sequence set, and the sequences in the first sequence set include at least one of the following sequences: {-7, 3, 1, -5, 5, 3}; {-3, -7, -3, -7, 1, -5}; {1, 7, 1, 7, -3, 5}; {1, -7, -1, -3, -1, -1}; {3, -5, 5, 3, -1, 1}; {-3, -3, -3, -7, 5, -7}; {1, 1, 5, 3, -3, 5}; {1, -1, -5, 1, 5, -7}; {7, 1, -7, 3, 7, 1}; {-3, -5, -5, -5, -1, 1}; {5, -1, 5, -3, 3, 3}; {-7, -1, -3, -7, 7, -1}; {-5, -3, 3, -3, 1, 1}; {3, 1, 5, -1, -5, 3}; {1, 3, -3, 5, -3, -3}; {-3, 1, -7, -1, 3, -5}; {5, 3, 1, -3, 3, 3}; {-5, -3, -3, 7, -3, -5}; {1, 7, -3, -5, 1, -7}; {-1, -3, 5, -1, 1, 5}; {-1, -7, 3, 3, 5, 3}; {7, -3, -7, 1, 5, -3}; {-7, 3, -1, 1, -5, -3}; {3, 3, -7, 3, -5, 3}; {7, -7, -3, -3, 5, -5}; {5, -1, -5, -5, 5, 1}; {-5, -3, 1, 7, -3, -3}; {5, 3, -7, 7, -5, -3}; {-7, -3, 3, -7, 7, 1}; {7, -7, 3, -3, -7, 1}.

23. The method according to claim 15 or 16, characterized in that, When the modulation index The impulse length L = 3, the modulation dimension M = 8, and the phase response function q(t) is as follows: When the sampling rate N = 2 and the number of sampling blocks J = 6: The first sequence {β i} belongs to a first sequence set, and the sequences in the first sequence set include at least one of the following sequences: {-7, 7, -7, -1, -7, 7}; {5, -1, 5, 5, 5, -3}; {-5, -5, -1, -1, -7, -5}; {-7, 7, -3, -7, -7, -7}; {1, 5, 1, -3, -3, 7}; {5, 5, -7, 3, 5, 5}; {-7, 3, -5, -7, -1, 1}; {1, -7, 5, -1, 1, 1}; {1, 7, -1, -1, 7, 3}; {-3, 7, -5, -5, -3, -7}; {-7, -1, -5, -3, 3, -1}; {-3, 7, -3, 7, -1, -7}; {-1, -1, -1, 7, -7, 1}; {-1, -5, -7, -7, -5, -1}; {1, -1, 5, 5, -5, 1}; {3, 5, 3, -7, 3, -7}; {7, -5, -5, -7, 7, 3}; {-7, -5, 1, -1, 1, -5}; {5, 1, 1, 5, -1, -3}; {5, -1, -7, 1, -7, 1}; {3, -7, -1, 1, -3, -3}; {-7, -5, -7, -3, 5, 1}; {7, -3, -3, -3, 7, 3}; {-7, 7, -3, 7, -7, -5}; {-1, -3, -1, -5, 7, -5}; {-5, 5, -7, 5, 5, 5}; {-7, -5, -7, 3, 5, 3}; {7, -7, 1, -5, 7, -3}; {-3, -5, 5, 3, 5, -5}; {7, -5, -7, 5, -5, -3}; {3, -5, -7, -1, 7, -5}; {5, -7, -5, 7, -3, -5}; {3, -5, 7, -1, -7, -5}; {-1, -7, 5, -3, -1, 7}; {-5, 7, -7, -3, 7, 1}; {3, 7, -3, 3, -3, -7}.

24. The method according to claim 15 or 16, characterized in that, When the modulation index The impulse length L = 3, the modulation dimension M = 8, and the phase response function q(t) is as follows: When the sampling rate N = 2 and the number of sampling blocks J = 6: The first sequence {β i} belongs to a first sequence set, and the sequences in the first sequence set include at least one of the following sequences: {3, 3, -1, -7, -1, -7}; {-3, 5, 5, 5, -5, 1}; {-5, -7, -5, -7, -1, 5}; {1, -5, -7, -5, 3, -5}; {5, 7, -1, 5, -3, 5}; {1, 5, -5, 1, -3, -1}; {-7, -7, -7, -3, -5, 1}; {7, -1, 7, 5, 1, -1}; {-7, 3, -3, 1, -1, -1}; {-3, -5, 3, -7, -1, -7}; {3, 3, 3, -7, 7, 1}; {-3, -7, -7, -5, -1, -7}; {-5, 5, -1, -1, 7, 5}; {5, 5, 3, 5, -1, -7}; {1, -7, -7, -7, 3, -1}; {-7, 1, 5, -1, 5, -3}; {3, -3, 3, -7, 5, -1}; {-7, -1, -5, -3, 3, -5}; {3, -7, -7, -7, 3, 5}; {-1, 7, -3, 3, -3, 7}; {-7, 1, -7, 5, 5, 3}; {-1, 3, -3, -7, -5, 3}; {-1, -5, -1, 5, -7, -1}; {-3, 5, 5, 5, -5, -7}; {-1, -7, -3, -7, -3, 1}; {-5, 1, -5, 3, 3, 3}; {-1, -7, 3, 3, -3, 5}; {-7, -5, 3, -1, -5, 5}; {-5, -5, -5, 5, 5, -5}; {-1, 3, 5, 5, -7, 5}.

25. The method according to claim 15 or 16, characterized in that, When the modulation index The impulse length L = 3, the modulation dimension M = 8, and the phase response function q(t) is as follows: When the bandwidth B = 0.3, the sampling rate N = 2, and the number of sampling blocks J = 6: The first sequence {β i} belongs to a first sequence set, and the sequences in the first sequence set include at least one of the following sequences: {-1, -5, 3, -3, 3, -5}; {7, -1, 7, -1, 7, 5}; {-5, 3, -7, -5, -3, -7}; {-1, 5, -5, 5, -1, 5}; {-5, -1, -7, 1, -7, 3}; {5, 5, -1, 3, -1, 5}; {1, -3, -1, 1, 5, 5}; {-3, -3, -5, -7, -5, -1}; {1, -3, 5, -1, 1, -3}; {-3, 3, -3, -7, 1, -7}; {3, -5, 3, 5, 5, 5}; {3, 3, -7, -5, -3, -7}; {-3, 5, 5, 1, 5, 3}; {1, -5, 1, -5, 5, -5}; {-3, -5, -3, 7, -3, 7}; {1, -1, -5, -7, -5, 1}; {1, -1, 3, -3, 5, 3}; {3, -7, 1, -1, -7, -5}; {-5, -5, 5, 5, 5, 3}; {-7, 5, -7, 3, 3, 3}; {-3, -3, -5, 3, 5, -5}; {5, 5, 5, -7, 7, -7}; {3, -7, -1, -7, -3, -3}; {1, 5, -1, -1, -1, 5}; {-5, -1, 3, -1, 1, 3}; {-7, 1, -5, -5, -5, 5}; {-1, -5, 3, 5, 3, -5}; {-3, 5, -5, -5, -5, 5}; {-5, -5, -1, 5, 3, -5}; {1, -7, 3, 3, -7, -1}; {-1, -3, 3, 1, 5, -5}; {-5, -1, 5, -7, 5, -5}; {3, 3, -3, -7, -3, -3}; {5, -7, 5, -1, -5, -5}; {5, -5, 3, -1, -5, 3}; {-5, 3, 5, -1, 1, -3}; {3, -5, 5, 3, -5, -1}.

26. A communication device, characterized in that, It includes units for implementing the method according to any one of claims 1 to 13.

27. A communication device, characterized in that, It includes a processor and a memory, the processor and the memory are coupled, and the processor is used to implement the method according to any one of claims 1 to 13.

28. A communication device, characterized in that, It includes a processor and an interface circuit. The interface circuit is used to receive signals from other communication devices outside the communication device and transmit them to the processor, or send signals from the processor to other communication devices outside the communication device. The processor is used to implement the method according to any one of claims 1 to 13 through logic circuits or by executing code instructions.

29. A communication device, characterized in that, It includes units for implementing the method according to any one of claims 14 to 25.

30. A communication device, characterized in that, It includes a processor and a memory, the processor and the memory are coupled, and the processor is used to implement the method according to any one of claims 14 to 25.

31. A communication device, characterized in that, It includes a processor and an interface circuit. The interface circuit is used to receive signals from other communication devices outside the communication device and transmit them to the processor, or send signals from the processor to other communication devices outside the communication device. The processor is used to implement the method according to any one of claims 14 to 25 through logic circuits or by executing code instructions.

32. A computer-readable storage medium, characterized in that, Instructions are stored on the computer-readable storage medium, and when the instructions run on a computer, the computer executes the method according to any one of claims 1 to 13, or the method according to any one of claims 14 to 25.

33. A computer program product, characterized in that, It includes a computer program or instructions. When the computer program or instructions are run on a communication device, the method according to any one of claims 1 to 13 is executed, or the method according to any one of claims 14 to 25 is executed.

34. A chip, characterized in that, It includes a processor, the processor is coupled to a memory, and is used to execute the computer program or instructions stored in the memory, so that the chip implements the method according to any one of claims 1 to 13, or implements the method according to any one of claims 14 to 25.

35. A communication system, characterized in that, It includes: A first communication device, which is used to execute the method according to any one of claims 1 to 13; A second communication device, which is used to execute the method according to any one of claims 14 to 25.

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