Sequence-based signal processing method and signal processing device

Abstract

The present application provides a sequence-based signal processing method and apparatus. By determining a sequence used for transmitting a signal by PUSCH, the sequence is a sequence {x n} including N elements, where x n is an element in the sequence {x n}, and the determined sequence {x n} is a sequence satisfying a preset condition. Then, a first signal is generated and transmitted. By using the above-determined sequence, good sequence frequency-domain flatness can be maintained when using PUSCH to transmit a signal, while maintaining a low PAPR value and a low inter-sequence cross-correlation, so as to meet the communication application environment of using PUSCH to transmit a signal. In particular, it meets the NR system or NR-like scenarios.

Description

[0001] This application claims the priority of a Chinese patent application titled "Sequence-based Signal Processing Method and Signal Processing Apparatus" with the application number 201711140831.9, filed with the Chinese Patent Office on November 16, 2017, the entire content of which is incorporated herein by reference, and simultaneously claims the priority of a Chinese patent application titled "Sequence-based Signal Processing Method and Signal Processing Apparatus" with the application number 201811303070.9, filed with the Chinese Patent Office on November 2, 2018, the entire content of which is incorporated herein by reference, and simultaneously claims the priority of a Chinese patent application titled "Sequence-based Signal Processing Method and Signal Processing Apparatus" with the application number 201880074425.3, filed with the Chinese Patent Office on May 15, 2020, the entire content of which is incorporated herein by reference. Technical Field

[0002] This application relates to the field of communication technologies, and in particular, to a sequence-based signal processing method and a signal processing apparatus. Background Art

[0003] In a long term evolution (LTE) system, a physical uplink shared channel (PUSCH) uses a demodulation reference signal (DMRS) for channel estimation and thus signal demodulation. In the LTE system, the base sequence of the uplink DMRS is directly mapped to resource elements without any coding process. In LTE, the uplink DMRS reference sequence is defined as a cyclic shift of the base sequence, and the base sequence of the uplink DMRS is obtained by cyclic extension of a Zadoff-Chu sequence (ZC sequence). This ZC sequence is a sequence that satisfies the properties of a constant amplitude zero auto-correlation (CAZAC) sequence.

[0004] In the new radio access technology (NR), the Discrete Fourier Transform spread OFDM (DFT-s-OFDM) waveform that supports uplink discrete Fourier transform spreading uses the π / 2 BPSK modulation method and supports filtering when using π / 2 BPSK modulation. When the uplink DFT-s-OFDM DMRS waveform uses π / 2 BPSK modulation, the uplink DMRS can use a sequence based on the Gold sequence or a Computer Generated Sequence (CGS). Currently, it is planned to support the use of ZC sequences in the NR for the DFT-s-OFDM DMRS waveform. However, when the uplink DFT-s-OFDM DMRS waveform uses the π / 2 BPSK modulation method and a filter, if the uplink DFT-s-OFDM DMRS waveform uses a sequence based on the Gold sequence or CGS and appropriate screening cannot be performed, the frequency flatness of the sequence will be poor, which is not conducive to channel estimation. If the uplink DFT-s-OFDM DMRS waveform uses a ZC sequence, the peak-to-average power ratio (PAPR) of the DMRS will be higher than the PAPR of the transmitted data, resulting in out-of-band spurious emissions and in-band signal losses of the pilot signal, affecting the channel estimation performance, or causing uplink coverage limitations.

[0005] That is to say, using the existing sequences used for DMRS of PDSCH cannot meet the current communication application environment for transmitting signals using PUSCH. Summary of the Invention

[0006] In view of this, embodiments of the present application provide a sequence-based signal processing method and a communication device for providing new sequences to meet the communication application environment for transmitting signals using PUSCH.

[0007] Embodiments of the present application provide the following technical solutions:

[0008] In a first aspect of embodiments of the present application, a sequence-based signal processing method is provided, including: determining a sequence {x n} including N elements, where N is a positive integer greater than 1, and x n is an element in the sequence {x n}, and the sequence {x n} is a sequence that meets a preset condition, and the preset condition is: x n = A · b n ·j n , where n ranges from 0 to N - 1, A is a non-zero complex number, Element b n =u·(1-2·s n ), u is a non-zero complex number, composed of elements s n The sequence of {s n The set of} includes at least one of the sequences in the first sequence set or one of the equivalent sequences of the sequences in the first sequence set; here, the sequences in the first sequence set can refer to the description in the specification; generate a first signal and send it.

[0009] It should be noted that the sequence {x n The preset conditions satisfied by} can be expressed in multiple equivalent ways. For example, the preset conditions can also be expressed as: n =A·b n ′·j n mod 2 , where n is an integer, the value of n ranges from 0 to N-1, and N is a positive integer greater than 1. A is a non-zero complex number. Element b n ′=u·(1-2·s n ′), u is a non-zero complex number. Although the two preconditions are expressed in different ways, when s n ′ and s n satisfy hour, The same sequence {x n}.

[0010] That is, for the sequence {x n}, no matter how the preconditions are expressed, as long as s n ′ and s n satisfy hour, A sequence {x n} is equivalent to a sequence.

[0011] In a possible design, when N=18, the corresponding operation can be performed according to the above method; when N=18, the corresponding operation can also be performed according to the following method, which is: when N=18, determine the sequence {x n}, N is a positive integer greater than 1, x n is an element in the sequence {xn}, and the sequence {xn} is a sequence that satisfies a preset condition, and the preset condition is: n =y (n+Μ)modΝ , where M∈{0,1,2,...,N-1}, y n =A·b n ·j n , n ranges from 0 to N-1, A is a non-zero complex number, Element b n = u·(1 - 2·s n ), where u is a non-zero complex number, and the set of sequences {s n} composed of element s n} includes at least one of the sequences in the third sequence set; here, the sequences in the third sequence set can be referred to the description in the specification.

[0012] In the above solution, by using the determined sequences, when transmitting signals using PUSCH, good sequence frequency-domain flatness can be maintained, while keeping a low PAPR value and low inter-sequence cross-correlation, so as to meet the communication application environment of transmitting signals using PUSCH. In particular, it meets the NR system or NR-like scenarios.

[0013] In a possible design, the generating and transmitting the first signal includes: performing discrete Fourier transform processing on N elements in the sequence {x n} to obtain a sequence {f n}; mapping the N elements in the sequence {f n} to N consecutive subcarriers respectively to obtain a frequency-domain signal containing N elements; or, mapping the N elements in the sequence {f n} to N equally spaced subcarriers respectively to obtain a frequency-domain signal containing N elements; generating the first signal; transmitting the first signal through radio frequency.

[0014] In a possible design, the generating the first signal includes: performing inverse fast Fourier transform on the frequency-domain signal containing N elements to obtain a corresponding time-domain signal, and adding a cyclic prefix to the time-domain signal to generate the first signal.

[0015] In a possible design, it further includes: filtering the sequence {x n} before performing discrete Fourier transform processing on the N elements in the sequence {x n}; or,

[0016] filtering the sequence {x n} after performing discrete Fourier transform processing on the N elements in the sequence {x n};

[0017] Or, before or after performing discrete Fourier transform processing on the N elements in the sequence {x n}, the sequence {x n} is not filtered.

[0018] In a possible design, the first signal is a reference signal; alternatively, the first signal is a signal for carrying communication information.

[0019] In a possible design, the sequence {s n} composed of elements s n constitutes a set that includes at least the first sequence in the second sequence set or an equivalent sequence of the first sequence, and the second sequence in the second sequence set or an equivalent sequence of the second sequence. Here, the sequences in the second sequence set can be found in the description of the specification.

[0020] In a possible design, when N = 18, the sequence {s n} composed of elements s n constitutes a set that includes at least the first sequence in the fourth sequence set and the second sequence in the fourth sequence set. Here, the sequences in the fourth sequence set can be found in the description of the specification.

[0021] In a possible design, the equivalent sequence is {q n}, and the elements q n in the equivalent sequence {q n} satisfy q n = s (n+M)modN where M ∈ {0, 1, 2,..., N - 1} and N is the sequence length.

[0022] The second aspect of the embodiments of the present application provides a sequence-based signal processing method. The signal processing method includes:

[0023] Receiving a first signal carried on N subcarriers, and obtaining N elements in the sequence {x n}, where N is a positive integer greater than 1, and x n is an element in the sequence {x n}. The sequence {x n} is a sequence that satisfies a preset condition. The preset condition is: x n = A · b n · j n , where n ranges from 0 to N - 1, A is a non-zero complex number, the element b n = u · (1 - 2 · s n ), u is a non-zero complex number, and the set of the sequence {s n} composed of elements s n includes at least one of the sequences in the first sequence set or an equivalent sequence of one of the sequences in the first sequence set. Here, the sequences in the first sequence set can be found in the description of the specification; processing the first signal according to the N elements in the sequence {x n}.

[0024] It should be noted that the preset conditions satisfied by the sequence {x n} can have multiple equivalent representation forms. For example, the preset conditions can also be expressed as: x n = A·b n ′·j n mod 2 , where n is an integer, the value range of n is from 0 to N - 1, and N is a positive integer greater than 1. A is a non-zero complex number. The element b n ′ = u·(1 - 2·s n ′), and u is a non-zero complex number. Although the two representation forms of the preset conditions are different, when s n ′ and s n satisfy , the two preset conditions describe the same sequence {x n}.

[0025] That is to say, for the sequence {x n}, no matter what form the preset conditions it satisfies are represented in, as long as s n ′ and s n satisfy , the sequence {x n} that satisfies the preset conditions represented in any form is equivalent to a sequence.

[0026] In a possible design, when N = 18, corresponding operations can be performed according to the above method; when N = 18, corresponding operations can also be performed according to the following method. The following method is: when N = 18, receive the first signal carried on N subcarriers, and obtain N elements in the sequence {x n}, where N is a positive integer greater than 1, x n is an element in the sequence {x n}, and the sequence {xn} is a sequence that satisfies the preset conditions. The preset conditions are: x n = y (n+ Μ)modΝ, where M ∈ {0, 1, 2,..., N - 1}, y n = A·b n ·j n , the value range of n is from 0 to N - 1, A is a non-zero complex number, the element b n = u·(1 - 2·s n ), u is a non-zero complex number, and the set of the sequence {s n} composed of the elements s n includes at least one of the sequences in the third sequence set; here, the sequences in the third sequence set can be referred to the records in the specification.

[0027] With the above - determined sequence, the above - mentioned solution can maintain good sequence frequency - domain flatness when transmitting signals using PUSCH, while maintaining a low PAPR value and low cross - correlation between sequences, thus meeting the communication application environment for transmitting signals using PUSCH. In particular, it meets the NR system or NR - like scenarios.

[0028] In a possible design, receiving a first signal carried on N sub - carriers and obtaining N elements in the sequence {x n} includes: obtaining the first signal on the N sub - carriers on consecutive N sub - carriers, or obtaining the first signal on the N sub - carriers on equally - spaced N sub - carriers; obtaining N elements in the sequence {f n}, where N is a positive integer greater than 1, and the first signal is generated by mapping the sequence {f n} to N sub - carriers, and f n is an element in the sequence {f n}; performing an inverse discrete Fourier transform on the sequence {f n} to obtain N elements in the sequence {x n}.

[0029] In a possible design, the first signal is a reference signal; or the first signal is a signal for carrying communication information.

[0030] In a possible design, the set composed of the sequence {s n} consisting of elements s n includes at least the first sequence in the second sequence set or an equivalent sequence of the first sequence, and the second sequence in the second sequence set or an equivalent sequence of the second sequence. Here, the sequences in the second sequence set are referred to the records in the specification.

[0031] In a possible design, when N = 18, the set composed of the sequence {s n} consisting of elements s n includes at least the first sequence in the fourth sequence set and the second sequence in the fourth sequence set. Here, the sequences in the fourth sequence set are referred to the records in the specification.

[0032] In a possible design, the equivalent sequence is {q n}, and the element q n in the equivalent sequence {q n} satisfies q n = s (n+M)modN for M ∈ {0, 1, 2, …, N - 1}, where N is the sequence length.

[0033] In a third aspect of the embodiments of the present application, a signal processing device is provided. The signal processing device may be a communication device or a chip within a communication device, and the communication device or the chip has the function of implementing the sequence-based signal processing method in the first aspect or any of its possible designs. This function can be implemented by hardware or by hardware executing corresponding software. The hardware or software includes one or more units corresponding to the above functions.

[0034] The communication device includes a processing unit and a transceiver unit. The processing unit may be a processor, and the transceiver unit may be a transceiver. The transceiver includes a radio frequency circuit. Optionally, the communication device further includes a storage unit, which may be a memory, for example. When the communication device includes a storage unit, the storage unit is used to store computer execution instructions. The processing unit is connected to the storage unit, and the processing unit executes the computer execution instructions stored in the storage unit to enable the communication device to execute the sequence-based signal processing method in the first aspect or any of its possible designs.

[0035] The chip includes a processing unit and a transceiver unit. The processing unit may be a processor, and the transceiver unit may be an input / output interface, a pin, or a circuit on the chip, etc. The processing unit can execute the computer execution instructions stored in the storage unit to enable the chip to execute the sequence-based signal processing method in the first aspect or any of its possible designs. Optionally, the storage unit may be a storage unit within the chip (such as a register, a cache, etc.), and the storage unit may also be a storage unit outside the chip within the communication device (such as a read-only memory (ROM)) or other types of static storage devices that can store static information and instructions (such as a random access memory (RAM)).

[0036] The processor mentioned in the third aspect may be a central processing unit (CPU), a microprocessor, or an application specific integrated circuit (ASIC), or may also be one or more integrated circuits for controlling the execution of the program of the sequence-based signal processing method in the first aspect or any of its possible designs.

[0037] A fourth aspect of the embodiments of the present application provides a signal processing device, which may be a communication device or a chip within a communication device. The communication device or the chip has the function of implementing the sequence-based signal processing method in the second aspect or any possible design thereof. This function can be implemented by hardware or by hardware executing corresponding software. The hardware or software includes one or more units corresponding to the above functions.

[0038] The communication device includes a processing unit and a transceiver unit. The processing unit may be a processor, and the transceiver unit may be a transceiver, and the transceiver includes a radio frequency circuit. Optionally, the communication device further includes a storage unit, which may be a memory, for example. When the communication device includes a storage unit, the storage unit is used to store computer execution instructions, the processing unit is connected to the storage unit, and the processing unit executes the computer execution instructions stored in the storage unit to enable the communication device to execute the sequence-based signal processing method in the second aspect or any possible design thereof.

[0039] The chip includes a processing unit and a transceiver unit. The processing unit may be a processor, and the transceiver unit may be an input / output interface, a pin, or a circuit on the chip, etc. The processing unit can execute the computer execution instructions stored in the storage unit to enable the chip to execute the sequence-based signal processing method in the second aspect or any possible design thereof. Optionally, the storage unit may be a storage unit within the chip (such as a register, a cache, etc.), and the storage unit may also be a storage unit outside the chip within the communication device (such as a read-only memory (ROM)) or other types of static storage devices that can store static information and instructions (such as a random access memory (RAM), etc.).

[0040] The processor mentioned in the fourth aspect may be a central processing unit (CPU), a microprocessor, or an application specific integrated circuit (ASIC), or may also be one or more integrated circuits for controlling the execution of the program of the sequence-based signal processing method in the second aspect or any possible design thereof.

[0041] A fifth aspect of the embodiments of the present application provides a communication system, which includes the communication device provided in the third aspect of the embodiments of the present application and the communication device provided in the fourth aspect of the embodiments of the present application.

[0042] The sixth aspect of the embodiments of the present application provides a computer-readable storage medium for storing computer instructions. When the computer instructions run on a computer, the computer is caused to execute the sequence-based signal processing method provided in the first aspect or the second aspect of the embodiments of the present application.

[0043] The seventh aspect of the embodiments of the present application provides a computer program product containing instructions. When the computer program product runs on a computer, the computer is caused to execute the sequence-based signal processing method provided in the first aspect or the second aspect of the embodiments of the present application.

[0044] For the sequence-based signal processing method, sequence-based signal processing device, communication system, computer-readable storage medium, and computer program product disclosed in the embodiments of the present application, by determining a sequence used for transmitting a PUSCH signal, the sequence is a sequence {x n} including N elements, x n being an element in the sequence {x n}, and the determined sequence {x n} is a sequence that meets a preset condition. Then, a first signal is generated and transmitted. By using the determined sequence above, better sequence frequency-domain flatness can be maintained when using a PUSCH to transmit a signal, while maintaining a lower PAPR value and a lower inter-sequence cross-correlation, thereby meeting the communication application environment for transmitting a signal using a PUSCH. In particular, it meets the NR system or NR-like scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 is a schematic flowchart of a sequence-based signal transmission processing disclosed in the embodiments of the present application;

[0046] Figure 2 is a schematic flowchart of a terminal device determining a sequence {x n} in the embodiments of the present application;

[0047] Figure 3 is a schematic flowchart of a terminal device generating and transmitting a first signal in the embodiments of the present application;

[0048] Figure 4a , Figure 4b and Figure 4c are schematic diagrams of a sequence {x n} including N elements obtaining a frequency-domain sequence {f n} including N elements through DFT in the embodiments of the present application;

[0049] Figure 5a and Figure 5b are schematic diagrams of a sequence {x n} including N elements obtaining a frequency-domain sequence {fn Schematic diagram of mapping to N sub - carriers;

[0050] Figure 6 Schematic diagram of a network device processing a first signal disclosed in an embodiment of the present application;

[0051] Figure 7a and Figure 7b Schematic flowchart of determining whether the frequency domain of a time - domain sequence is flat disclosed in an embodiment of the present application;

[0052] Figure 8 Schematic diagram of the structure of a terminal device disclosed in an embodiment of the present application;

[0053] Figure 9 Schematic diagram of the structure of another terminal device disclosed in an embodiment of the present application;

[0054] Figure 10 Schematic diagram of the structure of a network device disclosed in an embodiment of the present application;

[0055] Figure 11 Schematic diagram of the structure of another network device disclosed in an embodiment of the present application;

[0056] Figure 12 Schematic diagram of the structure of a communication system disclosed in an embodiment of the present application. Detailed implementation manners

[0057] Embodiments of the present application provide a sequence - based signal processing method and a communication device. By determining the sequence used for PUSCH - transmitted signals, good frequency - domain flatness of the sequence can be maintained when using PUSCH to transmit signals, while maintaining a low PAPR value and a low cross - correlation between sequences, thereby meeting the communication application environment for using PUSCH to transmit signals. In particular, it meets the NR system or NR - like scenarios.

[0058] In the descriptions of the embodiments, claims, and drawings of the present application, unless otherwise specified, "a plurality" means two or more than two. Additionally, for the convenience of clearly describing the technical solutions of the embodiments of the present application, in the embodiments of the present application, terms such as "first" and "second" are used to distinguish identical or similar items with basically the same functions and effects. Those skilled in the art can understand that the terms "first" and "second" do not limit the quantity and execution order, and the terms "first" and "second" do not necessarily mean different. In addition, the terms "including" and "having" in the embodiments, claims, and drawings of the present application are not exclusive. For example, a process, method, system, product, or device that includes a series of steps or modules is not limited to the listed steps or modules, and may further include unlisted steps or modules.

[0059] In a communication system, reference signals are usually used to obtain a channel estimation matrix for demodulating data information. Currently, in LTE systems, 4G systems, 4.5G systems, 5G systems, and NR systems or NR-like scenarios, when π / 2 BPSK modulation is supported for the uplink DFT-s-OFDM DMRS waveform, the uplink DMRS can use sequences based on Gold sequences or CGS. However, when the π / 2 BPSK modulation method is used for the uplink DFT-s-OFDM DMRS waveform and a filter is used, if the uplink DMRS uses sequences based on Gold sequences or CGS and appropriate screening cannot be performed, the frequency flatness of the sequences will be poor, which is not conducive to channel estimation. Currently, it is planned to support the use of ZC sequences for the DFT-s-OFDM DMRS waveform in NR.

[0060] The ZC sequence is a sequence that satisfies the properties of CAZAC sequences. Its mathematical definition is as follows. When the length N of the ZC sequence is even: When the length N of the ZC sequence is odd: The period of the ZC sequence is the length of the sequence and satisfies the property of central symmetry. In addition, the ZC sequence has good autocorrelation and cross-correlation. Its autocorrelation coefficient is N at the starting point and zero at other points, and the cross-correlation coefficient between different roots is approximately However, when the π / 2 BPSK modulation method is used for the uplink DFT-s-OFDM DMRS waveform, using the ZC sequence will cause the PAPR of the DMRS to be higher than the PAPR of the transmitted data, resulting in out-of-band spurious emissions and in-band signal losses of the pilot signal, affecting the channel estimation performance, or causing uplink coverage limitations.

[0061] To ensure that in LTE systems, 4G systems, 4.5G systems, 5G systems, and NR systems or NR-like scenarios, and even in other communication systems or communication application environments with higher requirements, the sequences used for the DMRS of the PDSCH can maintain good sequence frequency flatness while transmitting signals on the PDSCH, and at the same time maintain a low PAPR value and low inter-sequence cross-correlation, the embodiments of the present invention provide a specific implementation process of sequence-based signal processing, which will be described in detail through the following embodiments.

[0062] In the embodiments of the present invention, the sequence-based signal processing is mainly described from the receiving side and the transmitting side in a communication system or communication application environment. Among them, the receiving side can be a network device, and the transmitting side can be a terminal device; or the receiving side can be a terminal device, and the transmitting side can be the network side. In the following embodiments, the receiving side is a network device and the transmitting side is a terminal device as an example for description, but the present invention is not limited thereto.

[0063] In the embodiments of the present application, the terminal device involved may be a user equipment. The user equipment may be a wired device or a wireless device. Among them, the wireless device may be a handheld device with a wireless connection function, or other processing devices connected to a wireless modem, a mobile terminal that communicates with one or more core networks via a radio access network. For example, the wireless terminal may be a mobile phone, a cellular phone, a computer, a tablet computer, a personal digital assistant (PDA), a mobile internet device (MID), a wearable device, an e-book reader, etc. Also, the wireless terminal may be a portable, pocket-sized, handheld, computer-integrated or vehicle-mounted mobile device. Again, the wireless terminal may be a mobile station or an access point.

[0064] In the embodiments of the present application, the network device involved may be a base station. The base station may include various forms of macro base stations, micro base stations, relay stations, access point base station controllers, transmit and receive points, etc. In systems adopting different radio access technologies, the specific names of the base stations may vary.

[0065] As Figure 1 shown, it is a schematic flowchart of a sequence-based signal processing method disclosed in the embodiments of the present application, including:

[0066] S101, the terminal device determines a sequence {x n} including N elements.

[0067] For the execution of S101, optionally, it may be that after the terminal device accesses the network, it determines a sequence {x n} including N elements. Or it may be that when the terminal device accesses the network, the network device determines the sequence {b n} and configures it to the terminal device, and the terminal device determines a sequence {x n} including N elements based on the sequence {b n}. N is a positive integer greater than 1.

[0068] In a specific implementation, x n is an element in the sequence {x n}, and b n is an element in the sequence {b n}. The determined sequence {x n} is a sequence that meets a preset condition. The preset condition is: x n = A·b n ·j n .

[0069] Among them, n is an integer, the value of n ranges from 0 to N - 1, and N is a positive integer greater than 1. A is a non-zero complex number. Element b n = u·(1 - 2·s n ), where u is a non - zero complex number.

[0070] It should be noted that during the calculation process, optionally, the value of u is not fixed. In a specific implementation, the value of u is the same for all elements in the currently selected same sequence. The value of u can be different for elements in different sequences.

[0071] Among them, the sequence {s n} composed of the element s n} is one of the sequences in the first sequence set or one of the equivalent sequences of the sequences in the first sequence set.

[0072] In a possible embodiment, when N = 18, calculations can also be performed based on the above - mentioned preset conditions and corresponding operations can be executed.

[0073] In another possible embodiment, when N = 18, the preset condition can also be: x n = y (n+ Μ)mo dΝ , where Μ ∈ {0, 1, 2,..., Ν - 1}, y n = A·b n ·j n , n is an integer, the value of n ranges from 0 to N - 1, N is a positive integer greater than 1. A is a non - zero complex number. Element b n = u·(1 - 2·s n ), u is a non - zero complex number, and (n + Μ) mod Ν is the subscript of y.

[0074] It should be noted that during the calculation process, optionally, the value of u is not fixed. In a specific implementation, the value of u is the same for all elements in the currently selected same sequence. The value of u can be different for elements in different sequences.

[0075] Among them, the sequence {s n} composed of the element s n} is one of the sequences in the third sequence set.

[0076] On the other hand, in another possible embodiment, when N = 12, and / or when N = 18, and / or when N = 24, the preset condition can also be: x n = y (n+Μ)modΝ , where Μ ∈ {0, 1, 2,..., Ν - 1}, y n = A·b n ·j nmod2, n takes values from 0 to N - 1, A is a non - zero complex number, element b n = u·(1 - 2·s n ), u is a non - zero complex number, (n + Μ) mod Ν is the subscript of y.

[0077] Among them, the sequence {s n} composed of elements s n has a set that includes at least one of the sequences in the fifth sequence set.

[0078] It should be noted that during the calculation, optionally, the value of u is not fixed. In a specific implementation, the value of u is the same for all elements in the same currently selected sequence. The value of u can be different for elements in different sequences.

[0079] Among them, the sequence {s n} composed of elements s n is one of the sequences in the third sequence set.

[0080] In a possible example, when the length of the sequence in the first sequence set is 12, that is, N = 12, some or all of the sequences in sequence set 1 of the first sequence set. The sequences in sequence set 1 include the following 61 sequences. The sequences and their equivalent sequences after π / 2BPSK modulation correspond to the sequence {x n} satisfying that when using time - domain filtering with a filtering coefficient of [0.1, 1, 0.1], the PAPR is less than 3.05dB. When the filtering coefficient is [0.16, 1, 0.16], the PAPR is less than 2.52dB. When the filtering coefficient is [0.22, 1, 0.22], the PAPR is less than 1.95dB. When the filtering coefficient is [0.28, 1, 0.28], the PAPR is less than 1.50dB. At the same time, it satisfies that the first maximum normalized power of the frequency - domain sequence corresponding to {x n} is less than 4dB, and the first minimum normalized power is greater than - 4dB, that is, the frequency - domain flatness of the corresponding sequence {x n} is relatively good:

[0081] {1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 1}; {1, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 0};

[0082] {1,0,0,0,0,0,0,1,0,1,0,1}；{1,0,0,0,0,0,0,1,1,0,1,0}；{1,0,0,0,0,0,1,0,0,0,1,0}；{1,0,0,0,0,0,1,0,1,0,0,0}；{1,0,0,0,0,1,0,0,1,0,1,0}；{1,0,0,0,0,1,0,0,1,0,1,1}；{1,0,0,0,0,1,0,1,0,0,0,1}；{1,0,0,0,0,1,0,1,0,1,0,0}；{1,0,0,0,0,1,0,1,1,0,1,1}；{1,0,0,0,0,1,0,1,1,1,0,1}；{1,0,0,0,0,1,1,0,0,0,1,0}；{1,0,0,0,0,1,1,0,1,0,1,1}；{1,0,0,0,0,1,1,0,1,1,1,0}；{1,0,0,0,0,1,1,1,0,1,0,0}；{1,0,0,0,0,1,1,1,0,1,0,1}；{1,0,0,0,0,1,1,1,0,1,1,0}；{1,0,0,1,0,0,0,0,0,1,0,1}；{1,0,0,1,0,0,0,0,0,1,1,0}；{1,0,0,1,0,0,0,1,0,0,1,1}；{1,0,0,1,0,0,0,1,0,1,1,1}；{1,0,0,1,0,0,0,1,1,1,1,0}；{1,0,0,1,0,1,0,0,0,0,0,1}；{1,0,0,1,0,1,0,0,0,1,1,1}；{1,0,0,1,0,1,0,0,1,1,1,1}；{1,0,0,1,0,1,0,1,1,1,1,1}；{1,0,0,1,0,1,1,0,0,0,0,0}；{1,0,0,1,0,1,1,0,1,1,1,1}；{1,0,0,1,0,1,1,1,1,0,0,0}；{1,0,0,1,0,1,1,1,1,0,0,1}；{1,0,0,1,0,1,1,1,1,1,0,1}；{1,0,0,1,1,0,0,0,0,0,1,0}；{1,0,0,1,1,0,0,0,0,1,0,1}；{1,0,0,1,1,0,1,0,0,0,0,0}；{1,0,0,1,1,0,1,0,0,0,0,1}；{1,0,0,1,1,0,1,0,1,1,1,1}；{1,0,0,1,1,0,1,1,1,1,1,0}；{1,0,0,1,1,1,0,1,0,1,1,1}；{1,0,0,1,1,1,1,0,0,0,1,0}；{1,0,0,1,1,1,1,0,1,0,0,0}; {1,0,0,1,1,1,1,0,1,0,0,1}; {1,0,0,1,1,1,1,0,1,0,1,1}; {1,0,0,1,1,1,1,1,0,1,0,1}; {1,0,0,1,1,1,1,1,0,1,1,0}; {1,0,0,1,1,1,1,1,1,0,1,0}; {1,1,0,0,0,0,0,1,1,0,1,0}; {1,1,0,0,0,1,0,0,0,0,1,0}; {1,1,0,0,0,1,0,0,0,1,1,0}; {1,1,0,0,0,1,0,1,1,0,1,1}; {1,1,0,0,0,1,0,1,1,1,1,1}; {1,1,0,0,1,0,0,1,1,1,0,1}; {1,1,0,0,1,0,1,1,1,1,0,1}; {1,1,0,1,0,0,0,0,1,0,0,0}; {1,1,0,1,0,0,0,1,1,1,1,0}; {1,1,0,1,0,0,0,1,1,1,1,1}; {1,1,0,1,0,0,1,1,1,0,1,1}; {1,1,0,1,0,1,0,1,1,0,1,1}; {1,1,0,1,0,1,0,1,1,1,1,0}; {1,1,0,1,0,1,1,1,0,1,1,1}; {1,1,0,1,0,1,1,1,1,1,0,1};

[0083] and the following 8 sequences, the sequences corresponding to these sequences and their equivalent sequences after π / 2 BPSK modulation {x n} satisfy that when using time-domain filtering with a filtering coefficient of [0.28, 1, 0.28], the PAPR is less than 1.50 dB: and at the same time, the first maximum normalized power of the frequency-domain sequence corresponding to {x n} is less than 4 dB, and the first minimum normalized power is greater than -4 dB, that is, the frequency-domain flatness of the corresponding sequence {x n} is relatively good:

[0084] {1,0,0,0,0,1,0,0,0,1,0,1}; {1,0,0,0,0,1,0,0,1,1,1,0};

[0085] {1,0,0,0,0,1,0,1,1,1,0,0}; {1,0,0,0,0,1,1,0,1,0,0,0}; {1,0,0,1,0,1,1,1,0,1,1,1}; {1,0,0,1,1,1,1,0,1,1,1,0}; {1,1,0,0,0,1,0,1,1,1,1,0}; {1,1,0,1,0,0,0,1,1,0,1,1}。

[0086] In a possible example, when the sequence length in the first sequence set is 24, i.e., N = 24, the sequences in the first sequence set include some or all of the sequences in sequence set 2. The sequence set 2 includes the following 194 sequences. The sequences and their equivalent sequences, after being modulated by π / 2 BPSK, the corresponding sequences {x n} satisfy that when using time-domain filtering with filter coefficients [0.1, 1, 0.1], the PAPR is less than 3.17 dB; when the filter coefficients are [0.16, 1, 0.16], the PAPR is less than 2.58 dB; when the filter coefficients are [0.22, 1, 0.22], the PAPR is less than 1.94 dB; when the filter coefficients are [0.28, 1, 0.28], the PAPR is less than 1.39 dB. At the same time, {x n} satisfies that the first maximum normalized power of the corresponding frequency-domain sequence is less than 1.5 dB, and the first minimum normalized power is greater than -1.5 dB, that is, the corresponding sequence {x n} has good frequency-domain flatness:

[0087] {1,0,0,0,0,1,0,0,1,0,0,0,1,0,1,0,0,0,0,1,1,0,1,1};

[0088] {1,0,0,0,0,1,0,0,1,0,0,0,1,0,1,0,0,0,1,1,1,1,0,0};

[0089] {1,0,0,0,0,1,0,0,1,1,1,1,0,0,0,1,0,1,0,0,0,1,0,0};

[0090] {1,0,0,0,0,1,0,1,0,0,0,1,0,0,1,0,0,0,0,1,1,1,0,1};

[0091] {1,0,0,0,0,1,0,1,0,0,0,1,0,0,1,0,0,0,1,1,1,1,0,1};

[0092] {1,0,0,0,0,1,0,1,0,0,0,1,0,0,1,1,1,1,0,1,1,0,1,1};

[0093] {1,0,0,0,0,1,1,1,0,1,1,0,1,1,1,0,1,0,1,1,1,1,0,0}；

[0094] {1,0,0,0,0,1,1,1,0,1,1,0,1,1,1,1,0,0,1,0,0,0,1,0}；

[0095] {1,0,0,1,0,0,0,0,0,0,1,0,1,0,0,1,1,0,1,0,0,0,1,1}；

[0096] {1,0,0,1,0,0,0,0,0,0,1,0,1,1,0,0,0,1,1,1,0,1,0,1}；

[0097] {1,0,0,1,0,0,0,0,0,1,0,0,0,1,1,1,0,1,0,0,0,1,1,0}；

[0098] {1,0,0,1,0,0,0,0,0,1,0,0,0,1,1,1,0,1,0,0,1,0,1,1}；

[0099] {1,0,0,1,0,0,0,0,0,1,0,1,0,0,1,1,0,0,0,0,1,0,1,1}；

[0100] {1,0,0,1,0,0,0,0,0,1,0,1,1,1,0,0,1,0,1,0,0,0,0,1}；

[0101] {1,0,0,1,0,0,0,0,0,1,1,0,0,0,1,0,1,0,1,1,1,1,0,0}；

[0102] {1,0,0,1,0,0,0,0,0,1,1,1,0,0,0,0,1,0,0,1,1,0,1,0}；

[0103] {1,0,0,1,0,0,0,0,0,1,1,1,0,0,1,0,1,0,1,1,1,1,0,0}；

[0104] {1,0,0,1,0,0,0,0,0,1,1,1,0,1,0,1,1,0,1,0,0,0,0,1}；

[0105] {1,0,0,1,0,0,0,0,0,1,1,1,0,1,0,1,1,0,1,1,1,0,0,0}；

[0106] {1,0,0,1,0,0,0,0,0,1,1,1,0,1,1,0,1,0,1,1,1,0,0,0}；

[0107] {1,0,0,1,0,0,0,0,0,1,1,1,0,1,1,0,1,1,1,0,0,0,1,0}；

[0108] {1,0,0,1,0,0,0,0,0,1,1,1,1,0,1,0,0,1,1,0,0,0,1,0}；{1,0,0,1,0,0,0,0,1,0,0,0,0,1,1,0,1,0,0,0,1,0,1,1}；{1,0,0,1,0,0,0,0,1,0,1,0,0,0,1,1,0,0,1,0,1,1,1,1}；{1,0,0,1,0,0,0,0,1,0,1,0,0,1,1,1,1,1,0,1,0,0,0,1}；{1,0,0,1,0,0,0,0,1,0,1,1,0,0,1,1,1,1,1,0,1,0,1,1}；{1,0,0,1,0,0,0,0,1,1,1,0,1,0,1,1,1,1,0,0,1,0,0,0}；{1,0,0,1,0,0,0,0,1,1,1,1,0,1,1,0,0,0,1,0,1,0,0,0}；{1,0,0,1,0,0,0,0,1,1,1,1,0,1,1,0,1,1,1,0,1,0,1,1}；{1,0,0,1,0,0,0,1,0,0,1,0,1,0,0,0,1,0,0,0,0,1,1,1}；{1,0,0,1,0,0,0,1,0,0,1,0,1,0,1,1,1,1,1,0,0,1,1,1}；{1,0,0,1,0,0,0,1,0,0,1,1,1,1,0,0,0,0,1,0,0,0,1,0}；{1,0,0,1,0,0,0,1,0,0,1,1,1,1,0,0,1,1,1,1,1,0,1,0}；{1,0,0,1,0,0,0,1,0,0,1,1,1,1,0,1,0,1,1,1,0,0,0,0}；{1,0,0,1,0,0,0,1,0,1,0,0,0,0,1,1,0,1,1,1,1,0,0,0}；{1,0,0,1,0,0,0,1,0,1,0,0,0,1,1,0,1,1,1,1,0,0,0,0}；{1,0,0,1,0,0,0,1,0,1,1,1,1,1,0,0,1,1,0,0,0,0,1,0}；{1,0,0,1,0,0,0,1,1,0,0,0,0,0,1,0,1,1,1,1,0,1,0,1}；{1,0,0,1,0,0,0,1,1,1,0,1,0,1,1,0,1,1,1,0,0,0,0,0}；{1,0,0,1,0,0,0,1,1,1,0,1,0,1,1,0,1,1,1,1,1,0,0,0}；{1,0,0,1,0,0,0,1,1,1,0,1,1,0,1,0,1,1,1,0,0,0,0,0}；{1,0,0,1,0,0,0,1,1,1,0,1,1,0,1,1,1,1,1,0,0,0,1,0}；{1,0,0,1,0,0,0,1,1,1,1,0,1,0,1,1,1,0,1,1,0,0,0,0}；{1,0,0,1,0,0,0,1,1,1,1,1,0,1,0,0,1,1,0,0,0,0,1,0}；{1,0,0,1,0,0,0,1,1,1,1,1,0,1,1,0,1,0,1,1,1,0,0,0}；{1,0,0,1,0,0,0,1,1,1,1,1,0,1,1,0,1,1,1,0,0,0,1,0}；{1,0,0,1,0,0,1,0,1,0,0,0,1,1,0,0,0,1,0,1,1,1,1,1}；{1,0,0,1,0,0,1,0,1,0,0,0,1,1,1,1,1,1,0,0,1,1,1,0}；{1,0,0,1,0,0,1,0,1,0,1,0,0,0,0,0,0,1,1,0,0,1,1,1}；{1,0,0,1,0,0,1,0,1,1,1,0,0,1,1,1,1,1,1,0,0,0,1,0}；{1,0,0,1,0,0,1,1,1,1,0,0,0,0,1,0,0,0,0,1,0,1,0,1}；{1,0,0,1,0,0,1,1,1,1,0,0,1,1,0,0,0,0,0,0,1,0,1,0}；{1,0,0,1,0,0,1,1,1,1,0,1,0,1,0,0,0,1,1,0,0,0,0,0}；{1,0,0,1,0,0,1,1,1,1,0,1,0,1,0,0,1,1,1,0,0,0,0,0}；{1,0,0,1,0,0,1,1,1,1,1,1,0,1,0,0,0,1,1,0,0,0,1,0}；{1,0,0,1,0,0,1,1,1,1,1,1,0,1,0,0,1,1,1,0,0,0,1,0}；{1,0,0,1,0,1,0,0,0,0,0,0,1,0,0,1,1,1,0,0,0,1,0,1}；{1,0,0,1,0,1,0,0,0,0,0,1,0,0,1,1,1,0,1,0,0,0,0,1}；{1,0,0,1,0,1,0,0,0,0,1,0,0,0,1,1,1,1,1,0,1,0,0,1}；{1,0,0,1,0,1,0,0,0,0,1,0,0,1,1,0,0,0,1,0,1,1,1,1}；{1,0,0,1,0,1,0,0,0,0,1,0,1,1,1,1,1,0,0,1,1,1,0,1}；{1,0,0,1,0,1,0,0,0,0,1,1,0,0,1,0,1,1,1,1,1,0,0,0}；{1,0,0,1,0,1,0,0,0,0,1,1,0,0,1,1,1,1,1,0,1,0,0,0}；{1,0,0,1,0,1,0,0,0,1,0,1,1,0,0,0,0,0,0,1,0,0,1,1}；{1,0,0,1,0,1,0,0,0,1,1,0,0,1,0,1,1,1,1,0,0,0,0,0}；{1,0,0,1,0,1,0,0,0,1,1,1,0,0,1,0,1,1,1,1,1,1,0,0}；{1,0,0,1,0,1,0,0,0,1,1,1,0,0,1,0,1,1,1,1,1,1,0,1}；{1,0,0,1,0,1,0,0,0,1,1,1,0,1,1,0,1,1,1,0,0,0,0,0}；{1,0,0,1,0,1,0,0,0,1,1,1,0,1,1,0,1,1,1,1,1,0,0,0}；{1,0,0,1,0,1,0,0,0,1,1,1,1,1,0,1,1,0,0,1,1,1,1,0}；{1,0,0,1,0,1,0,0,0,1,1,1,1,1,0,1,1,0,1,1,1,0,0,0}；{1,0,0,1,0,1,0,1,1,0,0,0,0,0,1,0,0,0,0,1,1,1,0,1}；{1,0,0,1,0,1,0,1,1,0,0,0,0,0,1,0,0,0,1,1,1,1,0,1}；{1,0,0,1,0,1,0,1,1,0,0,1,0,0,0,0,1,1,1,0,0,0,0,0}；{1,0,0,1,0,1,0,1,1,0,0,1,0,0,0,0,1,1,1,0,1,1,1,1}；{1,0,0,1,0,1,0,1,1,0,0,1,0,0,0,1,1,1,1,0,1,1,1,1}；{1,0,0,1,0,1,0,1,1,0,1,1,1,1,1,0,0,0,1,1,1,1,0,1}；{1,0,0,1,0,1,0,1,1,1,1,0,0,1,1,0,1,0,0,0,0,0,0,1}；{1,0,0,1,0,1,0,1,1,1,1,0,1,1,1,1,0,0,0,0,1,1,0,1}；{1,0,0,1,0,1,1,0,0,0,1,0,1,1,1,0,0,0,1,0,0,0,0,0}；{1,0,0,1,0,1,1,0,0,0,1,1,0,0,0,0,0,0,1,0,1,1,1,0}；{1,0,0,1,0,1,1,0,1,0,0,0,1,0,1,1,1,1,1,1,0,0,1,1}；{1,0,0,1,0,1,1,0,1,1,1,1,1,0,1,1,1,0,0,0,1,0,1,1}；{1,0,0,1,0,1,1,1,0,0,0,1,0,0,0,0,0,1,0,0,1,1,1,0}；{1,0,0,1,0,1,1,1,0,0,0,1,1,0,1,1,1,1,1,1,0,1,0,1}；{1,0,0,1,0,1,1,1,0,1,0,0,0,0,0,0,1,1,0,0,0,1,1,0}；{1,0,0,1,0,1,1,1,0,1,0,0,0,1,1,0,1,1,1,1,0,1,1,1}；{1,0,0,1,0,1,1,1,0,1,0,1,1,0,0,0,1,1,0,1,1,1,1,1}；{1,0,0,1,0,1,1,1,1,0,0,1,1,0,1,1,1,1,1,0,0,0,1,0}；{1,0,0,1,0,1,1,1,1,0,1,1,0,0,0,1,0,1,0,0,0,0,0,1}；{1,0,0,1,0,1,1,1,1,1,0,0,0,1,0,0,0,0,1,0,1,0,0,1}；{1,0,0,1,0,1,1,1,1,1,1,0,0,1,1,0,1,0,1,0,0,0,0,1}；{1,0,0,1,1,0,0,0,0,1,0,1,0,0,1,1,1,0,1,0,0,0,0,0}；{1,0,0,1,1,0,0,0,0,1,0,1,1,0,1,0,1,1,1,0,0,0,0,0}；{1,0,0,1,1,0,0,0,1,0,1,0,0,0,0,1,0,0,1,1,1,1,1,0}；{1,0,0,1,1,0,1,0,0,0,0,0,1,1,1,0,1,1,1,1,0,1,0,1}；{1,0,0,1,1,0,1,0,0,0,0,1,0,0,1,1,1,0,1,0,1,1,1,1}；{1,0,0,1,1,0,1,0,0,0,0,1,1,1,1,1,0,1,1,0,1,0,1,1}；{1,0,0,1,1,0,1,0,1,0,0,0,0,1,0,0,0,0,1,1,1,1,0,0}；{1,0,0,1,1,0,1,0,1,1,1,1,0,1,0,0,0,0,0,1,1,0,0,0}；{1,0,0,1,1,0,1,0,1,1,1,1,0,1,1,1,0,0,0,0,0,1,0,1}；{1,0,0,1,1,0,1,0,1,1,1,1,1,1,0,1,1,0,0,0,1,1,1,0}；{1,0,0,1,1,0,1,1,1,0,0,0,0,1,0,0,0,0,0,1,1,0,1,0}；{1,0,0,1,1,0,1,1,1,1,0,0,0,1,0,0,0,0,0,1,1,0,1,0}；{1,0,0,1,1,0,1,1,1,1,0,0,0,1,1,1,1,1,0,1,1,0,1,0}；{1,0,0,1,1,0,1,1,1,1,0,1,0,1,1,0,0,0,0,0,1,0,1,1}；{1,0,0,1,1,0,1,1,1,1,1,1,0,1,0,0,1,1,1,0,0,0,1,0}；{1,0,0,1,1,1,0,0,1,0,0,0,0,0,0,1,1,0,1,0,0,0,1,0}；{1,0,0,1,1,1,0,0,1,1,1,1,1,1,0,1,0,0,0,1,0,1,1,0}；{1,0,0,1,1,1,0,1,0,0,0,0,0,1,1,0,1,0,1,1,1,1,0,1}；{1,0,0,1,1,1,0,1,0,0,0,1,0,1,1,0,0,0,0,1,0,0,0,0}；{1,0,0,1,1,1,0,1,0,0,0,1,1,1,0,1,1,1,1,1,0,1,1,0}；{1,0,0,1,1,1,0,1,0,1,1,0,1,1,0,0,0,0,0,0,1,0,1,1}；{1,0,0,1,1,1,0,1,0,1,1,0,1,1,1,1,1,0,0,0,0,1,0,1}；{1,0,0,1,1,1,0,1,0,1,1,1,0,1,1,0,1,1,1,1,0,0,0,0}；{1,0,0,1,1,1,0,1,0,1,1,1,1,0,1,1,0,0,0,0,0,1,0,1}；{1,0,0,1,1,1,1,0,1,0,1,0,0,1,1,0,0,0,0,0,0,1,0,1}；{1,0,0,1,1,1,1,0,1,1,1,1,0,1,1,0,0,0,1,0,1,1,1,0}；{1,0,0,1,1,1,1,1,0,1,0,0,0,0,1,0,1,0,0,1,1,0,1,1}；{1,0,0,1,1,1,1,1,0,1,1,0,1,1,0,0,0,0,1,0,1,0,1,1}；{1,0,0,1,1,1,1,1,0,1,1,1,0,0,0,0,1,0,0,1,1,0,1,0}；{1,0,0,1,1,1,1,1,0,1,1,1,1,0,0,0,1,0,0,1,1,0,1,0}；{1,0,0,1,1,1,1,1,1,0,1,0,0,1,1,0,0,0,0,1,0,1,0,1}；{1,1,0,0,0,0,0,0,0,1,0,1,0,1,1,0,0,1,1,0,1,0,0,1}；{1,1,0,0,0,0,0,0,1,0,1,0,0,1,1,0,1,0,0,1,1,1,0,1}；{1,1,0,0,0,0,0,0,1,0,1,1,0,0,0,1,1,1,0,1,0,1,1,0}；{1,1,0,0,0,0,0,0,1,1,0,0,0,1,0,0,1,0,1,1,1,0,1,0}；{1,1,0,0,0,0,0,0,1,1,0,0,0,1,0,1,1,0,1,1,0,1,0,1}；{1,1,0,0,0,0,0,0,1,1,0,0,0,1,0,1,1,0,1,1,1,0,1,0}；{1,1,0,0,0,0,0,0,1,1,0,1,0,1,1,1,0,1,0,0,1,0,0,0}；{1,1,0,0,0,0,0,0,1,1,0,1,0,1,1,1,0,1,1,0,1,0,0,0}；{1,1,0,0,0,0,0,0,1,1,1,0,1,0,1,1,0,1,1,0,1,0,0,0}；{1,1,0,0,0,0,0,1,0,0,0,0,1,1,0,1,0,1,0,0,0,1,1,0}；{1,1,0,0,0,0,0,1,0,0,0,1,0,1,1,0,1,0,0,1,1,1,0,1}；{1,1,0,0,0,0,0,1,0,0,1,1,0,1,1,1,1,0,1,0,1,0,0,1}；{1,1,0,0,0,0,0,1,0,1,0,0,0,1,1,0,1,1,1,1,0,1,0,0}；{1,1,0,0,0,0,0,1,0,1,0,1,1,1,0,0,1,0,0,1,0,0,0,0}；{1,1,0,0,0,0,0,1,0,1,1,0,0,1,1,1,1,0,1,0,1,1,0,1}；{1,1,0,0,0,0,0,1,0,1,1,1,0,1,1,0,1,0,1,1,1,1,0,0}；{1,1,0,0,0,0,1,0,0,0,0,0,1,1,0,1,1,0,0,0,1,0,1,0}；{1,1,0,0,0,0,1,0,0,1,0,0,1,1,1,0,1,0,1,0,0,0,0,0}；{1,1,0,0,0,0,1,0,1,0,1,1,0,0,0,1,1,1,1,1,0,1,1,0}；{1,1,0,0,0,0,1,1,0,1,1,1,1,0,1,1,0,1,1,1,0,1,0,1}；{1,1,0,0,0,0,1,1,1,0,1,0,1,1,1,0,1,1,0,1,1,1,1,0}；{1,1,0,0,0,0,1,1,1,1,0,1,1,1,1,0,1,0,1,0,0,1,1,0}；{1,1,0,0,0,1,0,0,0,0,0,1,0,1,1,0,0,0,1,0,0,1,0,1}；{1,1,0,0,0,1,0,0,0,0,0,1,0,1,1,0,0,0,1,0,1,1,0,1}；{1,1,0,0,0,1,0,0,0,0,0,1,0,1,1,0,1,1,1,0,0,0,1,0}；{1,1,0,0,0,1,0,0,0,1,1,0,1,0,0,0,0,0,1,0,0,1,0,1}；{1,1,0,0,0,1,0,0,0,1,1,0,1,0,0,1,0,1,1,1,0,1,1,1}；{1,1,0,0,0,1,0,0,0,1,1,0,1,0,0,1,1,0,1,0,1,1,1,1}；{1,1,0,0,0,1,0,0,0,1,1,1,0,1,0,0,1,0,0,0,0,0,1,0}；{1,1,0,0,0,1,0,0,0,1,1,1,1,1,0,1,1,1,0,1,0,0,1,0}；{1,1,0,0,0,1,0,0,0,1,1,1,1,1,1,0,1,0,1,1,0,0,1,0}；{1,1,0,0,0,1,0,0,1,0,1,1,1,0,0,1,0,1,1,1,1,1,0,1}；{1,1,0,0,0,1,0,0,1,0,1,1,1,1,1,0,1,1,1,0,0,1,0,1}；{1,1,0,0,0,1,0,1,0,1,1,1,1,1,0,0,1,1,1,1,0,1,1,0}；{1,1,0,0,0,1,0,1,1,0,1,0,0,0,1,1,0,1,1,1,1,1,0,1}；{1,1,0,0,0,1,0,1,1,0,1,0,0,0,1,1,1,0,1,1,1,1,1,0}；{1,1,0,0,0,1,0,1,1,0,1,1,1,0,0,1,0,1,1,1,1,1,0,1}；{1,1,0,0,0,1,0,1,1,0,1,1,1,1,1,0,1,0,0,1,1,1,0,1}；{1,1,0,0,0,1,0,1,1,1,1,0,0,1,1,0,1,0,1,1,1,1,1,0}；{1,1,0,0,0,1,0,1,1,1,1,1,0,1,1,0,0,1,1,1,1,0,1,0}；{1,1,0,0,0,1,1,0,1,0,0,0,0,0,0,1,0,0,1,1,0,1,0,1}；{1,1,0,0,0,1,1,0,1,0,0,0,0,0,0,1,1,0,1,1,0,1,0,1}；{1,1,0,0,0,1,1,0,1,0,0,1,1,0,0,1,0,1,0,1,1,1,1,1}；{1,1,0,0,0,1,1,0,1,0,1,0,0,0,0,1,0,0,1,1,0,1,1,1}；{1,1,0,0,0,1,1,0,1,0,1,0,0,0,0,1,1,0,1,1,0,1,1,1}；{1,1,0,0,0,1,1,1,1,1,0,1,1,0,0,1,0,0,0,0,1,0,1,0}；{1,1,0,0,0,1,1,1,1,1,1,1,0,1,0,1,0,0,1,1,0,0,1,0}；{1,1,0,0,1,0,0,0,0,0,1,1,1,0,0,1,0,1,0,1,1,1,1,0}；{1,1,0,0,1,0,0,1,1,1,0,1,0,1,0,0,1,1,1,1,0,1,1,1}；{1,1,0,0,1,0,0,1,1,1,1,1,0,1,1,1,1,0,0,1,0,1,0,1}；{1,1,0,0,1,0,1,0,0,0,0,0,0,1,1,1,0,1,1,1,0,0,1,0}；{1,1,0,0,1,0,1,0,0,0,1,0,0,1,0,1,1,1,0,0,1,1,1,1}；{1,1,0,0,1,0,1,0,0,0,1,0,1,1,0,1,1,1,0,0,1,1,1,1}；{1,1,0,0,1,0,1,1,0,0,1,1,0,1,0,1,0,0,0,0,0,0,0,1}；{1,1,0,0,1,0,1,1,0,1,0,0,0,1,0,0,0,0,0,1,1,1,0,1}；{1,1,0,0,1,0,1,1,1,1,1,0,1,1,0,1,0,0,0,1,1,1,0,1}；{1,1,0,0,1,1,0,1,0,0,0,0,0,1,1,0,1,1,1,1,0,1,0,1}；{1,1,0,0,1,1,0,1,0,0,0,0,0,1,1,1,0,1,1,0,1,0,1,1}；{1,1,0,0,1,1,0,1,1,1,1,1,0,1,0,0,0,1,1,0,1,0,1,1}; {1,1,0,0,1,1,1,0,1,0,0,1,0,0,0,1,0,1,0,0,1,1,1,1}; {1,1,0,0,1,1,1,0,1,0,1,0,0,0,0,1,1,0,1,1,0,1,1,1}; {1,1,0,0,1,1,1,0,1,1,0,1,0,0,0,1,0,1,0,0,1,1,1,1}; {1,1,0,0,1,1,1,1,0,1,0,0,0,1,1,0,1,1,1,1,1,0,1,0}; {1,1,0,0,1,1,1,1,0,1,0,1,1,0,1,1,1,0,1,0,0,0,0,0}; {1,1,0,0,1,1,1,1,1,0,1,0,1,0,0,0,1,1,0,1,1,0,1,1}; {1,1,0,1,0,0,0,0,0,1,0,0,0,1,1,0,1,0,0,0,1,1,1,0}; {1,1,0,1,0,0,0,0,0,1,0,0,0,1,1,1,0,1,0,0,1,0,0,0}; {1,1,0,1,0,0,0,0,0,1,0,0,0,1,1,1,0,1,1,0,1,0,0,0}; {1,1,0,1,0,0,0,1,1,1,0,1,1,1,1,1,0,1,0,0,1,1,1,0}; {1,1,0,1,0,0,1,0,0,0,1,1,1,0,1,0,0,1,1,1,0,1,1,1}; {1,1,0,1,0,0,1,0,0,0,1,1,1,0,1,1,1,1,1,0,1,0,0,1};

[0109] and, for the following 100 sequences, the sequences {x n} corresponding to these sequences and their equivalent sequences after π / 2 BPSK modulation satisfy that when using time-domain filtering with a filtering coefficient of [0.28, 1, 0.28], the PAPR is less than 1.39 dB, and at the same time satisfy that the first maximum normalized power of the frequency-domain sequence corresponding to {x n} is less than 1.5 dB, and the first minimum normalized power is greater than -1.5 dB, that is, the frequency-domain flatness of the sequence {x n} corresponding to it is relatively good:

[0110] {1,0,0,0,0,1,0,0,0,1,0,1,1,0,0,0,1,0,1,1,1,1,0,1}；{1,0,0,0,0,1,0,0,0,1,0,1,1,1,0,0,1,0,1,1,1,1,0,1}；{1,0,0,0,0,1,0,1,1,0,0,0,1,0,1,1,1,0,1,1,1,1,0,0}；{1,0,0,0,0,1,0,1,1,1,0,0,1,0,1,1,1,0,1,1,1,1,0,0}；{1,0,0,1,0,0,0,0,0,0,1,1,1,0,0,1,1,0,1,0,0,0,1,0}；{1,0,0,1,0,0,0,0,0,1,0,1,0,1,1,0,0,1,1,1,1,0,0,0}；{1,0,0,1,0,0,0,0,0,1,0,1,0,1,1,0,1,1,1,0,0,0,0,1}；{1,0,0,1,0,0,0,0,0,1,1,1,0,1,1,0,0,1,1,1,1,0,1,0}；{1,0,0,1,0,0,0,0,1,0,1,1,1,0,1,1,1,1,0,0,1,0,1,1}；{1,0,0,1,0,0,0,1,0,0,0,0,0,1,1,0,1,0,1,0,0,1,1,1}；{1,0,0,1,0,0,0,1,1,0,0,0,0,1,1,0,1,0,1,0,1,1,1,1}；{1,0,0,1,0,0,0,1,1,1,0,1,0,1,1,1,1,1,1,0,0,1,1,0}；{1,0,0,1,0,0,0,1,1,1,1,0,0,1,1,0,1,0,1,0,0,0,0,0}；{1,0,0,1,0,0,0,1,1,1,1,0,0,1,1,0,1,1,1,1,1,0,1,0}；{1,0,0,1,0,0,0,1,1,1,1,1,0,1,1,0,1,0,1,0,0,0,0,1}；{1,0,0,1,0,0,0,1,1,1,1,1,1,0,1,0,1,1,1,0,0,1,1,0}；{1,0,0,1,0,1,0,0,0,0,0,0,0,1,1,0,1,0,0,1,1,0,1,1}；{1,0,0,1,0,1,0,0,0,0,0,1,1,0,1,0,0,0,1,1,0,1,1,1}；{1,0,0,1,0,1,0,0,0,1,0,0,0,1,1,1,1,1,1,0,0,1,1,0}；{1,0,0,1,0,1,0,0,0,1,0,1,1,0,0,1,1,1,0,0,0,0,0,0}；{1,0,0,1,0,1,0,0,0,1,1,1,1,1,1,0,1,0,0,1,1,0,0,0}；{1,0,0,1,0,1,0,0,1,1,0,1,0,0,0,1,0,0,0,0,0,0,1,1}；{1,0,0,1,0,1,0,0,1,1,0,1,0,0,0,1,1,1,1,1,1,0,1,1}；{1,0,0,1,0,1,0,0,1,1,1,0,0,0,0,0,0,1,0,0,0,1,0,1}；{1,0,0,1,0,1,0,0,1,1,1,0,1,1,1,1,1,1,0,0,0,1,0,1}；{1,0,0,1,0,1,0,1,0,0,0,0,0,1,1,0,1,1,1,0,0,1,1,1}；{1,0,0,1,0,1,0,1,1,0,0,0,0,0,1,0,0,0,1,0,0,1,1,1}；{1,0,0,1,0,1,0,1,1,0,0,0,0,1,1,0,1,1,1,0,1,1,1,1}；{1,0,0,1,0,1,0,1,1,0,0,0,1,1,1,1,1,1,1,0,1,0,0,1}；{1,0,0,1,0,1,0,1,1,0,0,1,1,0,1,0,0,0,0,0,0,0,1,1}；{1,0,0,1,0,1,0,1,1,1,1,0,0,1,1,0,1,1,1,0,0,0,0,0}；{1,0,0,1,0,1,0,1,1,1,1,1,0,1,1,0,0,1,1,1,1,0,0,0}；{1,0,0,1,0,1,0,1,1,1,1,1,0,1,1,0,1,1,1,0,0,0,0,1}；{1,0,0,1,0,1,1,0,0,0,0,0,0,0,1,0,1,0,0,1,1,1,0,1}；{1,0,0,1,0,1,1,0,0,1,0,0,0,1,1,0,1,0,1,1,1,1,1,1}；{1,0,0,1,0,1,1,0,0,1,1,1,0,1,0,1,1,1,1,1,1,0,0,0}；{1,0,0,1,0,1,1,0,0,1,1,1,1,1,1,0,0,0,1,0,0,0,1,0}；{1,0,0,1,0,1,1,0,0,1,1,1,1,1,1,0,1,0,1,1,1,0,0,0}；{1,0,0,1,0,1,1,0,1,0,1,1,1,0,1,1,1,0,0,0,0,0,0,1}；{1,0,0,1,0,1,1,0,1,1,1,0,0,0,0,0,0,1,0,1,0,0,0,1}；{1,0,0,1,0,1,1,0,1,1,1,0,0,0,1,0,1,0,0,0,0,0,0,1}；{1,0,0,1,0,1,1,1,0,0,1,0,0,0,0,1,1,0,1,0,1,1,1,1}；{1,0,0,1,0,1,1,1,0,1,0,1,1,0,1,1,1,1,1,1,0,0,0,1}；{1,0,0,1,0,1,1,1,1,1,1,0,0,0,1,0,1,0,0,1,0,0,0,1}；{1,0,0,1,0,1,1,1,1,1,1,1,0,0,0,1,1,0,1,0,1,0,0,1}；{1,0,0,1,1,0,0,0,0,0,0,1,0,1,0,0,0,1,1,1,0,1,1,0}；{1,0,0,1,1,0,0,0,0,0,0,1,1,1,0,1,1,1,0,1,0,1,1,0}；{1,0,0,1,1,0,0,0,0,1,0,1,0,1,1,0,1,1,1,1,1,0,0,0}；{1,0,0,1,1,0,0,0,0,1,1,1,0,1,1,0,1,0,1,0,0,0,0,0}；{1,0,0,1,1,0,0,0,0,1,1,1,0,1,1,0,1,1,1,1,1,0,1,0}；{1,0,0,1,1,0,0,0,1,0,1,0,0,0,0,0,0,1,1,1,0,1,1,0}；{1,0,0,1,1,0,0,0,1,1,1,1,1,1,0,1,1,0,1,0,1,1,1,0}；{1,0,0,1,1,0,1,0,0,0,0,0,0,1,1,1,0,1,0,1,1,0,1,1}；{1,0,0,1,1,1,0,0,0,0,0,0,0,1,0,1,1,0,0,1,1,0,1,0}；{1,0,0,1,1,1,0,1,0,0,0,0,1,0,0,1,1,1,1,0,1,1,1,0}；{1,0,0,1,1,1,0,1,0,0,1,1,1,1,0,1,1,1,0,1,0,0,0,0}；{1,0,0,1,1,1,0,1,0,0,1,1,1,1,1,0,1,0,1,1,0,0,0,0}；{1,0,0,1,1,1,0,1,1,0,0,0,0,0,1,0,1,0,1,0,0,1,1,1}；{1,0,0,1,1,1,0,1,1,0,1,0,1,1,1,0,0,0,0,0,0,1,0,1}；{1,0,0,1,1,1,1,1,0,1,0,1,0,1,1,0,0,0,0,1,1,0,0,0}；{1,0,0,1,1,1,1,1,0,1,1,1,0,1,1,0,0,0,0,1,1,0,1,0}；{1,0,0,1,1,1,1,1,1,1,0,1,0,1,1,0,0,0,1,0,0,1,1,0}；{1,1,0,0,0,0,0,0,1,1,0,0,1,1,1,1,0,1,0,1,0,1,1,0}；{1,1,0,0,0,0,0,0,1,1,0,1,0,0,1,1,1,0,1,1,1,0,1,0}；{1,1,0,0,0,0,0,0,1,1,0,1,0,1,1,1,0,1,1,1,0,0,1,0}；{1,1,0,0,0,0,0,0,1,1,0,1,1,0,1,0,1,0,1,1,1,1,0,0}；{1,1,0,0,0,0,0,1,0,0,0,0,1,1,0,0,1,0,0,1,0,1,0,1}；{1,1,0,0,0,0,0,1,0,0,0,1,0,0,1,0,1,0,1,1,0,0,1,1}；{1,1,0,0,0,0,0,1,0,1,0,0,1,1,1,1,0,1,1,0,0,0,1,0}；{1,1,0,0,0,0,0,1,1,0,0,0,0,1,0,0,0,1,0,1,0,1,1,0}；{1,1,0,0,0,0,0,1,1,0,0,0,0,1,0,0,1,0,1,0,1,1,1,0}；{1,1,0,0,0,0,0,1,1,0,1,1,0,1,0,1,0,0,0,1,0,0,0,0}；{1,1,0,0,0,0,0,1,1,0,1,1,1,0,1,0,1,0,0,1,0,0,0,0}；{1,1,0,0,0,0,1,0,0,0,0,0,1,1,1,0,1,0,1,0,0,1,0,0}；{1,1,0,0,0,0,1,0,0,1,1,1,0,1,0,0,0,0,1,0,0,0,1,0}；{1,1,0,0,0,0,1,0,0,1,1,1,1,0,1,0,1,1,1,0,1,1,0,1}；{1,1,0,0,0,0,1,0,1,0,1,0,0,1,0,0,1,1,1,1,1,1,0,0}；{1,1,0,0,0,0,1,0,1,1,1,0,0,1,0,1,1,1,0,1,1,1,1,0}；{1,1,0,0,0,0,1,1,0,0,1,0,1,0,1,1,0,1,1,1,0,1,1,1}；{1,1,0,0,0,0,1,1,0,1,1,1,0,1,1,0,1,0,1,1,1,0,1,1}；{1,1,0,0,0,0,1,1,1,1,0,1,1,1,0,1,0,1,1,0,1,1,1,0}；{1,1,0,0,0,0,1,1,1,1,1,0,1,1,1,0,1,1,0,1,0,1,0,0}；{1,1,0,0,0,1,0,0,0,1,0,1,0,0,1,1,1,1,1,1,0,0,1,0}；{1,1,0,0,0,1,0,0,1,0,0,0,0,1,1,0,1,1,1,0,1,0,1,1}；{1,1,0,0,0,1,0,1,0,1,1,0,1,1,0,0,1,1,1,1,0,1,1,1}；{1,1,0,0,0,1,0,1,1,1,1,0,0,1,0,0,0,0,1,0,0,0,1,0}；

[0111] {1,1,0,0,0,1,0,1,1,1,1,0,1,1,1,0,1,0,0,1,1,1,1,0}；

[0112] {1,1,0,0,1,0,0,0,0,1,1,0,1,0,0,0,1,0,0,0,0,1,0,1}；

[0113] {1,1,0,0,1,0,0,0,1,0,1,0,1,1,0,1,1,1,1,0,0,1,1,1}；

[0114] {1,1,0,0,1,0,0,1,0,1,0,1,0,0,0,0,1,1,0,0,1,1,1,1}；

[0115] {1,1,0,0,1,0,0,1,0,1,0,1,1,1,0,1,1,1,1,0,0,1,1,1}；

[0116] {1,1,0,0,1,0,1,0,0,0,1,0,0,0,1,1,0,1,0,0,1,1,1,1}；

[0117] {1,1,0,0,1,0,1,1,1,0,1,1,1,1,0,1,0,0,0,1,1,0,1,1}；

[0118] {1,1,0,0,1,1,0,1,0,1,0,0,1,0,0,0,1,0,0,0,0,0,1,1}；

[0119] {1,1,0,0,1,1,0,1,1,0,1,0,1,0,0,0,1,1,1,1,1,0,1,1}；

[0120] {1, 1, 0, 0, 1, 1, 1, 1, 0, 1, 1, 0, 1, 0, 1, 0, 0, 0, 1, 0, 0, 1, 1, 1};

[0121] {1, 1, 0, 0, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1, 0, 1, 0, 0, 1, 0, 0, 1, 1, 1};

[0122] {1, 1, 0, 1, 0, 0, 0, 0, 1, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1, 0, 0, 1};

[0123] {1, 1, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 1, 1, 1, 1, 0, 1, 0, 0, 0};

[0124] {1, 1, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 1, 1, 0, 1, 1, 1, 1, 0, 1, 0, 0, 0}。

[0125] In a possible example, when the sequence length in the first sequence set is 36, i.e., N = 36, the sequences in the first sequence set include some or all of the sequences in sequence set 3. The sequence set 3 includes the following 144 sequences. The sequences and their equivalent sequences, after being modulated by π / 2 BPSK, the corresponding sequences {x n} satisfy that when using time-domain filtering with filter coefficients [0.1, 1, 0.1], the PAPR is less than 3.19 dB; when the filter coefficients are [0.16, 1, 0.16], the PAPR is less than 2.59 dB; when the filter coefficients are [0.22, 1, 0.22], the PAPR is less than 1.95 dB; when the filter coefficients are [0.28, 1, 0.28], the PAPR is less than 1.40 dB. At the same time, the first maximum normalized power of the frequency-domain sequence corresponding to {x n} is less than 1 dB, and the first minimum normalized power is greater than -1 dB, that is, the frequency-domain flatness of the corresponding sequence {x n} is relatively good:

[0126] {0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 1, 0, 0, 0, 1, 1, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 0, 1, 1, 1, 0, 1}; {0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 1, 1, 0, 0, 0, 1, 1, 0, 1, 0, 0, 0, 1, 1, 1, 0, 1};

[0127] {0,0,0,0,0,0,0,0,1,0,1,1,1,0,0,0,1,0,1,1,0,0,0,1,1,0,1,0,1,1,0,0,1,1,0,1}；

[0128] {0,0,0,0,0,0,0,0,1,0,1,1,1,0,0,0,1,0,1,1,0,0,1,1,0,1,0,1,1,0,0,0,1,1,0,1}；

[0129] {0,0,0,0,0,0,0,1,0,1,1,1,0,1,0,1,1,0,0,1,1,0,1,0,0,0,0,1,0,1,1,0,0,0,1,1}；

[0130] {0,0,0,0,0,0,0,1,1,0,0,0,1,1,0,1,0,0,0,0,1,0,1,1,0,0,1,1,0,1,0,1,1,1,0,1}；

[0131] {0,0,0,0,0,0,1,0,0,0,1,0,1,0,1,1,0,1,1,0,0,0,0,0,1,1,0,0,1,0,1,0,0,1,1,1}；

[0132] {0,0,0,0,0,0,1,0,0,0,1,1,0,0,0,1,0,1,0,1,0,0,1,0,0,1,0,1,1,0,0,1,1,1,1,1}；

[0133] {0,0,0,0,0,0,1,0,0,0,1,1,0,1,1,0,0,1,0,1,1,0,1,1,1,1,0,1,0,1,0,0,0,1,1,1}；

[0134] {0,0,0,0,0,0,1,0,0,1,0,0,0,1,0,0,0,1,1,1,0,1,0,1,0,0,1,0,1,1,0,0,1,1,1,1}；

[0135] {0,0,0,0,0,0,1,0,0,1,0,1,0,0,0,0,1,1,1,0,0,1,0,0,1,1,0,1,0,1,1,1,0,1,1,1}；

[0136] {0,0,0,0,0,0,1,0,0,1,0,1,1,0,0,1,0,0,0,0,1,1,1,1,0,1,0,1,0,1,1,1,0,0,1,1}；

[0137] {0,0,0,0,0,0,1,0,0,1,1,1,1,0,1,0,0,1,1,1,0,1,1,0,0,0,0,1,1,0,0,1,0,1,0,1}；

[0138] {0,0,0,0,0,0,1,0,1,0,1,0,0,1,1,0,0,0,0,1,1,0,1,1,1,0,0,1,0,1,1,1,1,0,0,1}；

[0139] {0,0,0,0,0,0,1,0,1,0,1,1,0,1,1,1,1,0,0,0,0,1,1,0,0,1,0,1,0,0,0,1,0,0,1,1}；

[0140] {0,0,0,0,0,0,1,1,0,0,1,0,0,0,1,0,1,0,0,1,1,0,0,0,0,1,1,1,1,0,1,1,0,1,0,1}；

[0141] {0,0,0,0,0,0,1,1,0,0,1,1,1,0,1,0,1,0,1,1,1,1,0,0,0,0,1,0,0,1,1,0,1,0,0,1}；

[0142] {0,0,0,0,0,0,1,1,0,1,0,0,0,1,0,0,0,1,1,0,1,0,1,1,0,0,1,1,1,1,1,0,1,0,1,1}；

[0143] {0,0,0,0,0,0,1,1,0,1,0,1,1,1,1,1,0,0,1,1,0,1,0,1,1,0,0,0,1,0,0,0,1,0,1,1}；

[0144] {0,0,0,0,0,0,1,1,1,0,0,0,1,0,1,0,1,1,1,1,0,1,1,0,1,0,0,1,1,0,1,1,0,0,0,1}；

[0145] {0,0,0,0,0,0,1,1,1,0,0,1,0,1,0,0,1,1,0,0,0,0,0,1,1,0,1,1,0,1,0,1,0,0,0,1}；{0,0,0,0,0,0,1,1,1,0,1,1,1,0,1,0,1,1,0,0,1,0,0,1,1,1,0,0,0,0,1,0,1,0,0,1}；{0,0,0,0,0,0,1,1,1,1,0,0,1,1,0,1,0,0,1,0,1,0,1,1,1,0,0,0,1,0,0,0,1,0,0,1}；{0,0,0,0,0,0,1,1,1,1,1,0,0,1,1,0,1,0,0,1,0,0,1,0,1,0,1,0,0,0,1,1,0,0,0,1}；{0,0,0,0,0,1,0,0,0,1,0,0,1,0,1,1,1,1,0,0,0,1,0,0,0,1,0,1,0,0,1,0,0,1,1,1}；{0,0,0,0,0,1,0,0,0,1,0,0,1,1,1,1,0,1,0,0,1,0,1,0,1,1,1,0,1,1,0,0,0,0,1,1}；{0,0,0,0,0,1,0,0,0,1,0,1,0,0,1,0,0,0,1,1,0,1,1,0,1,1,1,0,0,0,1,1,1,1,0,1}；{0,0,0,0,0,1,0,0,1,0,1,0,0,1,1,0,0,0,0,0,1,1,1,0,1,0,1,1,0,1,1,1,0,1,1,1}；{0,0,0,0,0,1,0,0,1,1,0,0,0,1,0,0,1,0,1,0,1,0,0,1,1,1,1,0,0,1,1,1,1,1,0,1}；{0,0,0,0,0,1,0,1,0,0,1,1,1,1,1,1,0,0,1,0,1,1,1,0,1,1,1,0,0,1,0,1,0,0,1,1}；{0,0,0,0,0,1,0,1,0,1,1,0,1,1,1,1,0,0,1,0,1,1,1,0,1,1,1,1,0,0,0,1,0,0,1,1}；{0,0,0,0,0,1,0,1,1,0,0,0,0,1,0,0,0,0,1,0,1,1,1,0,1,1,0,0,1,1,1,0,1,0,1,1}；{0,0,0,0,0,1,0,1,1,1,1,0,0,0,1,1,1,0,1,1,0,1,1,0,0,0,1,0,0,1,0,1,0,0,0,1}；{0,0,0,0,0,1,0,1,1,1,1,1,0,0,1,1,1,1,0,0,1,0,1,0,1,0,0,1,0,0,0,1,1,0,0,1}；{0,0,0,0,0,1,0,1,1,1,1,1,0,1,1,0,0,1,1,1,0,1,1,0,1,0,1,0,1,1,0,0,0,0,1,1}；{0,0,0,0,0,1,1,0,0,0,0,1,1,0,1,0,1,0,1,1,0,1,1,1,0,0,1,1,0,1,1,1,1,1,0,1}；{0,0,0,0,0,1,1,0,0,0,0,1,1,0,1,1,1,0,1,0,1,0,0,1,0,1,1,1,1,0,0,1,0,0,0,1}；{0,0,0,0,0,1,1,0,0,1,0,0,0,1,1,1,1,0,1,1,1,0,1,0,0,1,1,1,1,0,1,1,0,1,0,1}；{0,0,0,0,0,1,1,0,0,1,0,1,0,0,1,0,0,0,0,0,1,1,1,0,1,1,1,0,1,1,0,1,0,1,1,1}；{0,0,0,0,0,1,1,0,0,1,0,1,0,0,1,1,1,0,1,1,1,0,1,0,0,1,1,1,1,1,1,0,0,1,0,1}；{0,0,0,0,0,1,1,0,0,1,0,1,1,0,1,1,0,1,0,1,0,1,1,1,0,0,1,1,1,0,1,1,1,1,1,1}；{0,0,0,0,0,1,1,0,1,0,1,1,1,0,0,1,1,0,1,1,1,0,1,0,0,0,0,1,0,0,0,0,1,1,0,1}；{0,0,0,0,0,1,1,1,0,0,1,0,0,1,0,1,0,0,0,1,0,0,0,1,1,1,1,0,1,0,0,1,0,0,0,1}；{0,0,0,0,0,1,1,1,1,1,1,0,1,1,1,0,0,1,1,1,0,1,0,1,0,1,1,0,1,1,0,1,0,0,1,1}；{0,0,0,0,1,0,0,0,0,1,0,1,1,1,0,1,0,0,1,1,1,0,1,1,0,0,0,0,1,0,0,0,1,0,1,1}；{0,0,0,0,1,0,0,0,0,1,0,1,1,1,0,1,0,0,1,1,1,1,0,1,1,1,0,1,0,0,1,1,1,0,1,1}；{0,0,0,0,1,0,0,0,0,1,1,0,1,0,0,0,1,0,0,0,0,1,1,0,1,1,1,0,0,1,0,1,1,1,0,1}；{0,0,0,0,1,0,0,0,0,1,1,0,1,1,1,0,0,1,0,1,1,1,0,1,1,1,1,0,0,1,0,1,1,1,0,1}；{0,0,0,0,1,0,0,0,1,0,1,1,0,0,0,0,1,0,0,0,1,1,0,1,1,1,0,1,0,0,1,1,1,1,0,1}；{0,0,0,0,1,0,0,0,1,0,1,1,0,0,0,0,1,0,0,1,0,1,0,1,1,1,1,1,0,0,1,1,0,1,1,1}；{0,0,0,0,1,0,0,0,1,0,1,1,0,0,0,0,1,0,1,1,1,1,0,1,1,1,0,1,0,0,1,1,1,0,1,1}；{0,0,0,0,1,0,0,0,1,0,1,1,0,0,0,1,0,0,1,1,1,1,0,1,1,1,0,1,0,0,0,0,1,0,1,1}；{0,0,0,0,1,0,0,0,1,0,1,1,0,0,0,1,0,0,1,1,1,1,0,1,1,1,0,1,0,0,1,1,1,1,0,1}；{0,0,0,0,1,0,0,0,1,0,1,1,0,0,0,1,0,0,1,1,1,1,0,1,1,1,1,0,1,0,0,0,1,0,1,1}；{0,0,0,0,1,0,0,0,1,0,1,1,1,1,0,1,0,0,1,1,1,1,0,1,1,1,0,0,1,0,0,0,1,0,1,1}；{0,0,0,0,1,0,0,0,1,0,1,1,1,1,0,1,0,0,1,1,1,1,0,1,1,1,0,1,0,0,1,1,1,0,1,1}；{0,0,0,0,1,0,0,0,1,1,0,1,1,1,0,1,0,0,1,1,1,1,0,1,1,1,0,1,0,0,0,0,1,0,1,1}；{0,0,0,0,1,0,0,1,0,1,0,1,1,1,1,1,1,0,0,1,1,0,1,1,1,0,1,0,1,1,0,0,1,1,1,1}；{0,0,0,0,1,0,0,1,0,1,1,0,0,1,0,0,1,1,1,0,1,1,1,1,1,1,0,0,0,1,1,1,0,1,0,1}；{0,0,0,0,1,0,1,0,1,0,0,0,1,1,0,0,1,1,1,1,1,1,0,1,1,0,1,0,0,1,1,0,1,1,1,1}；{0,0,0,0,1,0,1,0,1,1,1,0,0,0,1,1,1,1,1,1,0,1,1,1,0,0,1,0,0,1,1,0,1,0,0,1}；{0,0,0,0,1,0,1,1,0,0,0,1,0,0,1,1,1,1,0,0,1,1,0,1,0,1,0,1,1,1,1,1,1,0,1,1}；{0,0,0,0,1,0,1,1,0,1,0,1,0,0,0,1,0,0,1,1,1,1,0,0,1,1,1,1,1,0,1,1,1,0,1,1}；{0,0,0,0,1,0,1,1,0,1,1,1,0,1,1,1,1,1,0,0,0,1,1,0,1,1,0,1,0,1,1,1,0,1,1,1}；{0,0,0,0,1,0,1,1,1,0,1,1,1,1,0,0,1,0,0,0,1,1,0,1,0,0,0,1,0,0,0,0,1,1,0,1}；{0,0,0,0,1,0,1,1,1,0,1,1,1,1,0,0,1,0,1,1,1,0,1,1,0,0,0,1,0,0,0,0,1,1,0,1}；{0,0,0,0,1,0,1,1,1,1,0,0,1,0,1,1,1,0,1,1,0,0,0,1,0,0,0,0,1,1,0,1,0,0,0,1}；{0,0,0,0,1,0,1,1,1,1,0,0,1,0,1,1,1,0,1,1,1,1,0,0,1,0,0,0,1,1,0,1,0,0,0,1}；{0,0,0,0,1,0,1,1,1,1,0,1,1,1,0,1,0,0,1,1,1,1,0,1,1,1,0,0,1,0,0,0,1,0,1,1}；{0,0,0,0,1,0,1,1,1,1,1,0,1,1,1,0,1,0,1,1,0,1,1,1,0,0,1,0,0,1,0,0,0,1,1,1}；{0,0,0,0,1,1,0,0,1,0,1,1,0,1,0,1,0,0,0,1,1,1,0,1,1,1,0,1,1,0,1,1,1,1,1,1}；{0,0,0,0,1,1,0,1,0,0,0,1,0,0,0,0,1,1,0,1,1,1,0,0,1,0,1,1,1,0,1,1,1,1,0,1}；{0,0,0,0,1,1,0,1,0,0,0,1,0,0,0,0,1,1,1,0,1,1,0,0,1,1,1,1,1,0,1,0,1,0,0,1}；{0,0,0,0,1,1,0,1,0,0,0,1,0,0,1,1,1,0,1,1,1,1,0,0,1,0,1,1,1,0,1,1,1,1,0,1}；{0,0,0,0,1,1,0,1,0,0,0,1,0,0,1,1,1,0,1,1,1,1,0,0,1,0,1,1,1,1,0,1,0,0,0,1}；{0,0,0,0,1,1,0,1,0,0,0,1,0,1,1,1,1,0,1,1,1,1,0,0,1,0,0,0,1,1,0,1,0,0,0,1}；{0,0,0,0,1,1,0,1,1,1,0,0,1,0,1,1,1,0,1,1,1,1,0,0,1,0,1,1,1,1,0,1,0,0,0,1}；{0,0,0,0,1,1,0,1,1,1,0,1,1,1,1,1,0,0,1,1,1,1,0,0,1,0,0,0,1,0,1,0,1,1,0,1}；{0,0,0,0,1,1,0,1,1,1,1,1,1,0,1,0,1,0,1,1,0,0,1,1,1,1,0,0,1,0,0,0,1,1,0,1}；{0,0,0,0,1,1,1,0,0,0,1,0,0,1,0,0,1,1,1,0,1,1,0,1,0,1,1,1,0,1,1,1,1,1,0,1}；{0,0,0,0,1,1,1,0,1,1,1,0,1,0,1,1,0,1,1,0,0,0,1,1,1,1,1,0,1,1,1,0,1,1,0,1}；{0,0,0,0,1,1,1,1,0,0,1,1,0,1,0,1,1,1,0,1,1,0,0,1,1,1,1,1,1,0,1,0,1,0,0,1}；{0,0,0,0,1,1,1,1,0,1,1,0,0,1,0,1,1,0,1,1,1,1,1,1,0,0,1,1,0,0,0,1,0,1,0,1}；{0,0,0,0,1,1,1,1,1,1,0,1,1,0,1,1,1,0,1,1,1,0,0,0,1,0,1,0,1,1,0,1,0,0,1,1}；{0,0,0,1,0,0,0,1,0,0,1,0,1,0,0,0,1,1,1,1,1,0,0,1,1,0,1,0,1,1,0,1,1,1,1,1}；{0,0,0,1,0,0,0,1,0,1,0,0,1,1,0,1,1,0,0,0,1,1,1,1,0,1,0,1,1,0,1,1,1,1,1,1}；{0,0,0,1,0,0,0,1,1,1,1,1,0,1,1,0,1,0,1,1,0,0,1,1,1,1,1,0,0,0,1,0,1,0,0,1}；{0,0,0,1,0,0,0,1,1,1,1,1,1,0,1,1,0,1,0,1,1,1,1,0,0,0,1,1,0,1,1,0,0,1,0,1}；{0,0,0,1,0,0,1,1,0,0,0,1,0,1,0,0,1,1,1,1,1,0,1,0,0,1,1,1,1,0,1,1,1,1,0,1}；{0,0,0,1,0,0,1,1,1,1,0,1,1,1,0,1,0,0,1,1,1,1,0,1,1,1,1,0,1,0,0,0,1,0,1,1}；{0,0,0,1,0,1,0,0,1,1,0,0,1,0,1,1,1,1,0,1,0,0,1,1,1,0,0,1,1,1,1,1,1,1,0,1}；{0,0,0,1,0,1,1,1,1,0,1,1,1,1,0,0,1,0,1,1,1,0,1,1,1,1,0,0,1,0,0,0,1,1,0,1}；{0,0,0,1,0,1,1,1,1,0,1,1,1,1,0,0,1,0,1,1,1,1,1,0,0,1,0,1,0,0,0,1,1,0,0,1}；{0,0,0,1,0,1,1,1,1,1,1,1,0,0,1,1,1,0,0,1,0,1,1,1,1,0,1,0,0,1,1,0,0,1,0,1}；{0,0,0,1,0,1,1,1,1,1,1,1,1,0,1,0,0,1,1,0,0,1,0,1,0,0,1,1,1,0,0,1,0,1,1,1}；{0,0,0,1,0,1,1,1,1,1,1,1,1,0,1,0,0,1,1,1,0,0,1,0,1,0,0,1,1,0,0,1,0,1,1,1}；{0,0,0,1,1,0,1,0,1,1,0,0,1,1,1,1,1,0,0,1,0,0,1,0,1,0,1,1,1,0,1,1,1,1,1,1}；{0,0,0,1,1,1,0,1,0,0,1,1,0,0,1,0,1,0,0,1,1,1,0,0,1,0,1,1,1,1,1,1,1,1,0,1}；{0,0,0,1,1,1,0,1,0,0,1,1,1,0,0,1,0,1,0,0,1,1,0,0,1,0,1,1,1,1,1,1,1,1,0,1}；{0,0,0,1,1,1,1,1,1,0,1,1,1,0,1,0,1,0,0,1,0,0,1,1,1,1,1,0,0,1,1,0,1,0,1,1}；{0,1,0,0,0,0,0,1,1,0,0,1,1,1,1,0,1,0,0,0,0,1,1,0,1,1,0,0,1,0,1,0,1,0,0,0}；{0,1,0,0,0,0,1,0,1,0,1,0,0,1,1,0,1,1,0,0,0,0,1,0,1,1,1,1,0,0,1,1,0,0,0,0}；{0,1,0,0,0,0,1,0,1,0,1,0,1,1,1,1,0,0,1,0,0,1,1,1,1,1,0,0,1,1,0,0,0,0,1,0}；{0,1,0,0,0,0,1,0,1,0,1,0,1,1,1,1,0,0,1,1,0,0,0,0,0,1,1,0,1,1,0,0,0,0,1,0}；{0,1,0,0,0,0,1,0,1,1,1,0,1,0,0,1,1,1,1,0,1,0,1,1,0,0,0,0,0,1,0,0,1,1,0,0}；{0,1,0,0,0,1,0,0,0,0,0,1,1,0,0,0,1,1,0,1,1,0,1,0,0,0,0,0,1,1,1,0,1,0,1,0}；{0,1,0,0,0,1,0,0,1,0,1,0,1,1,1,0,0,0,0,0,1,0,1,1,0,1,1,0,0,0,1,1,0,0,0,0}；{0,1,0,0,0,1,1,0,0,1,0,0,0,0,0,1,1,0,1,0,1,1,1,1,0,0,1,0,1,1,1,0,1,0,0,0}；{0,1,0,0,1,0,0,0,0,1,1,0,0,1,1,1,1,1,0,0,1,0,0,1,1,1,1,0,1,0,1,0,1,0,0,0}；

[0146] {0,1,0,0,1,0,0,0,0,1,1,0,1,1,0,0,0,0,0,1,1,0,0,1,1,1,1,0,1,0,1,0,1,0,0,0}；

[0147] {0,1,0,1,0,0,0,0,0,0,1,1,1,0,1,0,0,1,1,1,1,0,1,1,1,0,1,0,0,1,0,0,0,1,1,0}；

[0148] {0,1,0,1,0,0,0,0,0,1,1,0,1,0,1,0,0,1,1,1,1,0,1,1,1,0,1,1,0,0,0,0,0,1,1,0}；

[0149] {0,1,0,1,0,0,0,0,1,0,1,0,0,0,1,1,0,0,1,0,0,0,1,1,1,1,1,1,1,0,0,1,0,1,1,0}；

[0150] {0,1,0,1,0,0,0,0,1,0,1,0,0,1,1,0,1,0,0,1,1,1,1,1,1,1,0,0,0,1,0,0,1,1,0,0}；

[0151] {0,1,0,1,0,0,0,0,1,0,1,1,0,1,1,0,1,1,1,0,0,0,1,1,0,1,1,1,0,0,0,0,0,1,0,0}；

[0152] {0,1,0,1,0,0,0,0,1,1,0,1,0,0,0,1,0,1,1,1,1,0,1,1,1,0,0,1,1,0,1,1,1,1,1,0}；

[0153] {0,1,0,1,0,0,0,1,0,0,0,0,0,1,1,1,0,1,1,0,0,0,1,1,1,0,1,1,0,1,1,0,1,0,0,0}；

[0154] {0,1,0,1,0,0,0,1,0,0,0,1,1,0,1,0,0,0,0,1,1,1,1,1,1,0,1,1,1,0,0,1,0,1,1,0}；

[0155] {0,1,0,1,0,0,1,0,1,0,1,1,1,0,1,1,0,0,1,0,0,0,0,0,0,0,1,1,1,0,0,0,0,1,1,0}；

[0156] {0,1,0,1,0,0,1,1,0,0,0,0,0,1,1,0,1,1,1,0,1,1,1,1,0,0,1,0,1,0,1,1,0,0,0,0}；

[0157] {0,1,0,1,0,0,1,1,0,0,0,0,1,1,1,0,0,0,0,0,0,0,1,0,0,1,1,0,1,1,1,0,1,0,1,0}；

[0158] {0,1,0,1,0,0,1,1,0,0,0,1,0,0,1,0,1,1,1,0,1,1,1,1,0,0,1,0,1,1,1,0,0,0,0,0}；

[0159] {0,1,0,1,0,0,1,1,0,1,0,0,1,1,1,0,1,1,1,1,1,1,0,0,0,0,1,0,1,1,0,0,0,1,0,0}；

[0160] {0,1,0,1,0,0,1,1,1,1,1,0,1,1,0,0,1,1,1,0,1,1,1,1,0,1,0,0,0,1,0,1,1,0,0,0}；

[0161] {0,1,0,1,0,1,0,1,1,1,1,0,1,1,0,1,1,1,1,0,0,1,0,0,1,1,1,1,1,0,0,1,1,0,0,0}；

[0162] {0,1,0,1,0,1,0,1,1,1,1,0,1,1,0,1,1,1,1,0,0,1,1,0,0,0,0,0,1,1,0,1,1,0,0,0}；

[0163] {0,1,0,1,0,1,1,0,0,0,0,1,0,0,0,1,0,0,1,1,1,1,1,0,0,1,1,0,1,0,1,1,1,1,1,0}；

[0164] {0,1,0,1,0,1,1,0,0,1,1,0,1,1,1,1,1,1,1,0,1,0,0,1,0,1,1,1,0,0,1,1,1,1,0,0}；

[0165] {0,1,0,1,0,1,1,0,0,1,1,1,0,1,1,1,1,1,0,0,1,1,0,1,0,0,1,0,1,1,1,0,0,0,0,0}；

[0166] {0,1,0,1,0,1,1,0,1,0,1,1,0,0,1,1,1,1,0,0,0,1,1,1,1,1,1,1,0,1,1,0,0,1,0,0}；

[0167] {0,1,0,1,0,1,1,0,1,1,0,1,1,1,1,1,1,0,1,0,0,0,1,1,1,1,0,0,1,1,1,0,0,1,0,0}；

[0168] {0,1,0,1,0,1,1,0,1,1,1,0,1,1,1,1,1,0,0,1,1,1,0,0,1,0,0,1,0,1,1,1,1,1,0,0}；

[0169] {0,1,0,1,0,1,1,1,0,0,0,0,1,1,0,0,0,1,0,1,1,0,1,0,0,0,0,0,0,0,1,0,0,1,1,0}；

[0170] {0,1,0,1,0,1,1,1,0,0,1,0,1,1,1,1,0,0,1,0,0,0,1,1,0,1,0,0,1,1,0,0,0,0,0,0}；

[0171] {0,1,0,1,0,1,1,1,0,1,1,0,0,0,1,1,0,0,0,0,1,1,1,0,1,0,0,0,0,0,0,1,0,0,1,0}；

[0172] {0,1,0,1,0,1,1,1,1,1,1,0,0,0,1,0,1,1,0,1,0,0,1,1,0,0,0,0,0,1,0,0,0,1,1,0}；

[0173] {0,1,0,1,0,1,1,1,1,1,1,1,0,0,1,1,0,1,0,0,1,1,1,0,1,1,0,0,0,0,1,0,1,1,0,0}；

[0174] {0,1,0,1,1,0,0,0,0,1,0,0,0,1,0,1,1,0,1,1,1,0,0,1,1,0,1,0,1,1,1,1,1,1,0,0}；

[0175] {0,1,0,1,1,0,1,0,0,0,1,1,0,0,0,0,1,1,1,0,1,0,1,0,0,1,1,0,0,1,0,0,0,0,0,0}；

[0176] {0,1,0,1,1,1,0,0,0,0,1,1,0,0,0,1,1,0,1,1,1,0,1,0,1,0,0,1,0,0,1,0,0,0,0,0}；

[0177] {0,1,0,1,1,1,1,0,0,0,0,0,0,1,0,0,0,1,1,0,1,0,0,1,1,0,1,0,1,1,1,0,1,1,1,0};

[0178] {0,1,0,1,1,1,1,0,1,0,1,1,1,0,1,1,1,1,1,0,0,0,1,0,0,1,1,1,0,0,0,1,0,0,1,0};

[0179] {0,1,0,1,1,1,1,1,1,0,1,1,0,1,1,0,1,0,1,0,0,0,1,0,0,1,1,1,0,0,1,1,1,1,0,0};

[0180] {0,1,0,1,1,1,1,1,1,1,0,1,1,0,0,1,1,0,1,0,1,0,0,0,1,1,1,1,0,0,1,1,1,0,1,0};

[0181] and some or all of the following 95 sequences, the sequences corresponding to these sequences and their equivalent sequences after π / 2 BPSK modulation {x n} satisfy that when using time-domain filtering with filter coefficients [0.28, 1, 0.28], the PAPR is less than 1.40 dB, and at the same time satisfy that the first maximum normalized power of the frequency-domain sequence corresponding to {x n} is less than 1 dB, and the first minimum normalized power is greater than -1 dB, that is, the frequency-domain flatness of the corresponding sequence {x n} is relatively good:

[0182] {0,0,0,0,0,0,0,0,1,0,0,1,1,0,1,0,0,0,1,1,1,0,0,1,1,0,1,0,1,0,0,1,0,1,1,1}; {0,0,0,0,0,0,0,0,1,1,1,0,1,0,0,1,0,1,0,1,1,0,0,1,1,1,0,0,0,1,0,1,1,0,0,1};

[0183] {0,0,0,0,0,0,0,1,0,0,0,1,1,0,1,0,1,1,1,0,1,0,0,1,1,1,0,0,1,0,0,1,0,1,1,1}；{0,0,0,0,0,0,0,1,0,0,1,0,1,1,0,0,0,1,1,1,1,0,1,1,0,0,1,1,0,1,0,1,0,1,1,1}；{0,0,0,0,0,0,0,1,0,1,0,0,1,0,0,1,0,1,1,1,0,1,1,0,0,0,1,0,1,1,1,0,0,1,1,1}；{0,0,0,0,0,0,0,1,1,0,0,0,1,1,0,1,0,1,1,1,1,1,0,0,1,0,0,1,1,0,1,0,1,0,1,1}；{0,0,0,0,0,0,0,1,1,0,0,1,0,1,0,1,0,0,1,0,0,1,1,1,1,0,1,1,1,0,1,0,0,1,1,1}；{0,0,0,0,0,0,0,1,1,0,1,0,0,0,1,0,0,0,0,1,1,0,1,0,1,0,1,1,0,1,1,0,0,1,1,1}；{0,0,0,0,0,0,0,1,1,0,1,0,1,0,1,1,0,0,1,0,0,1,1,1,1,1,0,1,0,1,1,0,0,0,1,1}；{0,0,0,0,0,0,0,1,1,1,0,0,1,0,1,1,1,0,1,1,1,1,0,0,1,0,0,1,0,1,0,1,0,0,1,1}；{0,0,0,0,0,0,0,1,1,1,0,0,1,1,0,1,1,0,1,0,1,0,1,1,0,0,0,0,1,0,0,0,1,0,1,1}；{0,0,0,0,0,0,0,1,1,1,0,0,1,1,1,0,1,0,0,0,1,1,0,1,1,1,0,1,0,0,1,0,0,1,0,1}；{0,0,0,0,0,0,0,1,1,1,0,1,0,0,1,0,0,1,1,1,0,0,1,0,1,1,1,0,1,0,1,1,0,0,0,1}；{0,0,0,0,0,0,0,1,1,1,0,1,0,1,0,1,1,0,0,1,1,0,1,1,1,1,0,0,0,1,1,0,1,0,0,1}；{0,0,0,0,0,0,1,0,0,1,0,0,0,1,1,0,1,0,0,1,1,1,1,0,0,1,0,0,0,1,1,1,0,1,0,1}；{0,0,0,0,0,0,1,0,0,1,1,0,1,1,0,1,0,1,1,1,1,1,0,0,0,1,1,0,0,0,1,0,1,0,1,1}；{0,0,0,0,0,0,1,0,1,0,0,1,0,1,1,0,0,1,0,0,0,0,1,1,1,0,1,1,1,0,1,0,0,0,1,1}；{0,0,0,0,0,0,1,0,1,0,1,1,1,0,0,0,1,0,0,1,1,1,1,0,0,1,0,1,1,0,0,0,1,0,0,1}；{0,0,0,0,0,0,1,0,1,1,1,0,1,1,0,1,1,0,1,0,1,1,0,1,1,1,0,1,1,1,0,0,0,1,1,1}；{0,0,0,0,0,0,1,1,0,0,0,1,0,1,1,1,0,1,1,1,0,0,0,0,1,0,0,1,1,0,1,0,0,1,0,1}；{0,0,0,0,0,0,1,1,0,0,1,0,0,1,0,0,0,0,1,1,0,0,0,1,0,1,0,1,0,1,1,0,1,1,1,1}；{0,0,0,0,0,0,1,1,0,1,0,1,0,0,0,1,1,0,0,0,1,1,1,1,1,0,1,0,1,1,0,1,1,0,0,1}；{0,0,0,0,0,0,1,1,1,0,0,0,1,1,1,0,1,1,1,0,1,1,0,1,0,1,1,0,1,1,0,1,1,1,0,1}；{0,0,0,0,0,0,1,1,1,1,0,1,1,0,1,0,1,0,1,0,0,0,1,1,0,0,0,0,1,0,0,1,0,0,1,1}；{0,0,0,0,0,1,0,0,0,0,1,1,0,1,1,0,0,0,1,1,1,1,0,1,1,0,1,0,1,0,1,1,1,0,1,1}；{0,0,0,0,0,1,0,0,0,1,0,0,1,0,0,1,1,1,0,0,0,1,0,0,0,1,0,1,0,0,1,0,1,1,1,1}；{0,0,0,0,0,1,0,0,1,0,0,1,0,0,0,1,1,0,1,1,1,0,0,0,1,1,1,0,1,0,1,1,1,1,0,1}；{0,0,0,0,0,1,0,0,1,0,1,0,0,1,0,0,0,1,0,0,0,1,0,1,1,1,0,0,0,1,1,1,1,0,1,1}；{0,0,0,0,0,1,0,1,0,0,1,0,0,0,1,1,1,0,1,1,1,1,0,0,1,0,1,1,1,0,1,1,0,1,1,1}；{0,0,0,0,0,1,0,1,0,0,1,0,0,1,1,0,1,1,1,1,1,1,0,0,1,0,1,0,1,1,1,0,0,1,1,1}；{0,0,0,0,0,1,0,1,0,0,1,1,1,0,0,1,1,1,1,1,1,1,0,0,1,0,1,0,1,0,0,1,1,0,1,1}；{0,0,0,0,0,1,0,1,1,1,1,0,1,0,1,1,1,0,0,0,1,1,1,0,1,1,0,0,0,1,0,0,1,0,0,1}；{0,0,0,0,0,1,1,0,1,1,0,0,1,0,1,0,1,0,0,1,1,1,1,1,1,1,0,0,1,1,1,0,0,1,0,1}；{0,0,0,0,0,1,1,0,1,1,1,0,1,0,1,0,1,1,0,1,1,1,1,0,0,0,1,1,0,1,1,0,0,0,0,1}；{0,0,0,0,0,1,1,0,1,1,1,1,0,0,0,1,1,1,0,1,0,0,0,1,0,0,0,1,0,0,1,0,1,0,0,1}；{0,0,0,0,0,1,1,1,0,0,0,1,0,0,0,0,1,0,1,0,1,1,0,1,1,0,1,1,0,1,1,1,0,1,1,1}；{0,0,0,0,0,1,1,1,0,0,1,1,1,0,1,0,1,0,0,1,1,1,1,1,1,0,1,1,0,0,1,0,0,1,0,1}；{0,0,0,0,0,1,1,1,0,1,1,0,1,1,1,0,1,0,0,1,1,1,1,0,1,1,1,0,0,0,1,0,0,1,0,1}；{0,0,0,0,0,1,1,1,0,1,1,1,0,1,1,0,1,1,0,1,1,0,1,0,1,0,0,0,0,1,0,0,0,1,1,1}；{0,0,0,0,0,1,1,1,1,0,1,0,0,1,0,1,0,0,0,1,0,0,0,1,1,1,0,0,1,0,0,1,0,0,0,1}；{0,0,0,0,1,0,0,0,0,1,0,0,1,1,0,0,0,1,0,1,1,1,0,1,0,0,1,0,1,1,1,0,1,1,1,1}；{0,0,0,0,1,0,0,0,0,1,1,1,1,0,1,1,1,0,1,0,0,1,0,1,1,1,0,1,0,0,0,1,1,0,0,1}；{0,0,0,0,1,0,0,0,1,0,1,1,0,0,0,1,1,1,1,1,1,1,0,0,1,1,0,1,0,1,0,1,1,0,1,1}；{0,0,0,0,1,0,0,0,1,0,1,1,0,1,0,0,0,1,0,1,1,1,0,0,1,1,0,1,1,1,1,0,1,1,1,1}；{0,0,0,0,1,0,0,0,1,0,1,1,0,1,1,0,0,0,0,1,1,1,0,1,1,1,0,1,1,0,0,0,0,1,0,1}；{0,0,0,0,1,0,0,0,1,1,1,0,1,1,0,1,0,1,1,1,1,1,0,0,0,1,0,0,1,0,0,0,1,0,1,1}；{0,0,0,0,1,0,0,1,0,1,0,1,0,0,0,1,0,0,1,1,1,1,1,0,1,1,1,1,0,0,1,0,0,1,1,1}；{0,0,0,0,1,0,0,1,0,1,0,1,0,1,1,1,0,0,1,1,1,1,0,1,1,0,1,1,0,0,1,1,1,1,1,1}；{0,0,0,0,1,0,0,1,1,0,0,1,0,1,0,1,0,0,0,1,1,1,1,1,1,1,0,1,1,0,1,0,0,1,1,1}；{0,0,0,0,1,0,0,1,1,1,1,1,0,1,1,0,1,0,1,1,0,1,1,1,0,1,1,1,0,1,0,0,0,1,1,1}；{0,0,0,0,1,0,1,0,0,0,0,1,1,0,1,1,1,0,1,1,1,0,0,0,0,1,1,0,1,1,0,1,0,0,0,1}；{0,0,0,0,1,0,1,0,0,0,1,1,1,0,0,0,1,0,0,1,1,1,0,1,1,0,1,1,0,1,1,1,1,1,0,1}；{0,0,0,0,1,0,1,1,0,1,0,1,1,1,0,1,1,1,0,0,0,1,1,0,1,1,0,1,1,1,0,1,1,1,1,1}；{0,0,0,0,1,0,1,1,1,1,1,0,1,1,0,1,1,0,1,1,1,0,0,1,0,0,0,1,1,1,0,0,0,1,0,1}；{0,0,0,0,1,1,0,1,0,0,0,1,0,0,1,0,0,0,1,1,1,1,1,0,1,0,1,1,0,1,1,1,0,0,0,1}；{0,0,0,0,1,1,0,1,0,0,1,1,1,0,1,1,0,1,1,1,1,1,1,0,1,0,1,0,0,0,1,1,1,0,1,1}；{0,0,0,0,1,1,0,1,1,0,1,0,1,0,1,1,0,0,1,1,1,1,1,1,1,0,0,0,1,1,0,1,0,0,0,1}；{0,0,0,0,1,1,0,1,1,1,0,0,0,1,0,1,0,1,1,1,1,1,1,0,1,1,0,1,1,1,0,0,1,0,1,1}；{0,0,0,0,1,1,1,0,0,0,1,0,1,1,1,0,1,1,1,0,1,1,0,1,0,1,1,0,1,1,1,1,1,0,0,1}；{0,0,0,0,1,1,1,0,0,1,0,0,1,1,1,1,0,1,1,1,1,1,0,0,1,0,0,0,1,0,1,0,1,0,0,1}；{0,0,0,0,1,1,1,0,0,1,0,1,1,0,1,1,1,1,1,1,1,0,0,0,1,0,1,0,1,0,0,1,1,0,0,1}；{0,0,0,0,1,1,1,1,0,1,1,1,1,0,1,1,0,0,1,1,1,0,1,0,0,0,1,0,1,1,0,1,0,0,0,1}；{0,0,0,0,1,1,1,1,1,0,1,1,1,0,1,1,0,1,1,0,0,0,1,1,1,0,1,1,1,0,1,0,1,1,0,1}；{0,0,0,0,1,1,1,1,1,1,0,0,1,1,0,1,1,0,1,1,1,1,0,0,1,1,1,0,1,0,1,0,1,0,0,1}；{0,0,0,1,0,0,0,1,0,0,1,0,0,1,0,0,1,0,1,0,1,1,1,1,0,1,1,1,0,0,0,1,1,1,1,1}；{0,0,0,1,0,0,0,1,0,0,1,0,1,0,0,1,0,0,1,0,0,0,1,0,1,1,1,1,1,1,0,0,0,1,1,1}；{0,0,0,1,0,0,0,1,0,0,1,1,1,1,0,1,0,1,1,1,1,0,1,1,1,0,1,0,0,1,0,0,1,1,1,1}；{0,0,0,1,0,0,0,1,0,1,1,1,0,0,1,1,1,1,1,1,0,1,0,1,1,0,1,0,0,1,1,0,1,1,1,1}；{0,0,0,1,0,0,0,1,1,1,0,0,0,1,1,1,1,1,1,0,1,0,0,0,1,0,0,1,0,0,1,0,1,0,0,1}；{0,0,0,1,0,0,0,1,1,1,1,0,0,1,0,0,1,0,1,1,1,0,1,1,1,1,0,1,0,1,1,1,1,0,0,1}；{0,0,0,1,0,0,0,1,1,1,1,0,1,1,0,0,1,0,1,1,0,1,0,1,1,1,1,1,1,0,0,1,1,1,0,1}；{0,0,0,1,0,0,0,1,1,1,1,1,0,0,0,1,1,1,0,1,1,1,1,0,1,0,1,0,0,1,0,0,1,0,0,1}；{0,0,0,1,0,0,1,1,1,0,1,0,0,0,1,1,0,0,0,1,1,1,1,1,1,1,0,1,0,1,1,0,1,1,0,1}；{0,0,0,1,0,1,0,0,1,1,1,0,1,1,1,1,1,1,1,0,0,0,1,0,1,1,0,1,1,0,0,0,1,1,0,1}；{0,0,0,1,0,1,1,0,0,0,1,1,0,1,1,0,1,0,0,0,1,1,1,1,1,1,1,0,1,1,1,0,0,1,0,1}；{0,0,0,1,0,1,1,0,1,0,1,0,0,1,1,0,0,0,1,1,1,0,1,0,0,1,1,0,1,1,1,1,1,1,1,1}；{0,0,0,1,0,1,1,0,1,1,0,1,0,1,1,1,1,1,1,1,0,0,0,1,1,0,0,0,1,0,1,1,1,0,0,1}；{0,0,0,1,1,0,0,1,0,0,1,0,1,0,1,0,0,1,1,1,1,0,1,1,1,0,1,0,0,1,1,1,1,1,1,1}；{0,0,0,1,1,0,0,1,0,1,0,1,1,0,1,0,0,0,1,1,1,1,1,1,1,1,0,1,1,0,0,1,0,1,1,1}；{0,0,0,1,1,1,0,0,1,0,0,0,1,1,1,1,1,0,1,1,1,0,1,0,1,1,1,1,0,1,0,0,1,0,0,1}；{0,0,0,1,1,1,1,1,1,1,0,0,1,0,1,1,1,0,1,1,1,1,0,0,1,0,1,0,1,0,0,1,0,0,1,1}；{0,1,0,0,0,0,1,1,1,0,0,0,0,0,1,0,1,0,1,0,0,1,0,0,1,1,0,1,1,1,1,0,1,1,0,0}；{0,1,0,0,0,1,0,0,0,0,1,0,0,1,1,0,1,0,1,0,0,0,0,0,1,1,1,1,0,0,1,1,1,0,1,0}；{0,1,0,0,0,1,0,0,0,1,1,0,1,0,0,0,0,0,1,0,1,1,1,0,1,1,1,1,0,0,0,1,1,0,1,0}；{0,1,0,0,0,1,0,0,1,0,1,1,0,0,0,1,1,1,1,0,1,1,1,0,1,0,0,0,0,0,1,0,1,1,0,0}；{0,1,0,0,0,1,0,0,1,0,1,1,1,0,0,1,1,1,1,0,0,0,0,0,1,0,1,0,1,1,0,0,1,0,0,0}；{0,1,0,0,0,1,1,0,1,1,1,1,0,1,1,0,0,1,0,0,1,0,1,0,1,0,0,0,0,0,1,1,1,0,0,0}；{0,1,0,1,0,0,0,1,1,1,1,1,0,0,0,1,0,0,0,1,0,0,0,0,1,0,0,1,0,0,1,0,1,1,1,0}；{0,1,0,1,0,0,1,1,1,0,1,0,0,1,0,0,1,0,0,0,0,1,0,0,0,1,0,0,0,1,1,1,1,1,0,0}；{0,1,0,1,0,1,0,0,0,1,1,1,1,0,0,1,0,0,1,0,1,1,1,0,0,1,1,0,0,0,0,0,0,0,1,0}；{0,1,0,1,0,1,0,0,1,0,0,0,0,0,0,0,1,1,0,0,1,1,1,0,1,0,0,1,0,0,1,1,1,1,0,0}；{0,1,0,1,0,1,1,1,1,1,0,0,0,0,1,1,0,0,0,1,0,1,1,0,1,1,1,0,1,1,1,1,0,1,1,0}；{0,1,0,1,1,0,1,1,0,0,0,0,1,1,1,0,1,0,1,0,1,1,0,1,1,1,1,1,1,1,0,0,1,1,0,0}；{0, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 0, 0, 0, 0, 1, 1, 1, 0, 1, 0, 1, 1, 0, 0}; {0, 1, 0, 1, 1, 1, 1, 1, 0, 1, 0, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 0, 1, 0, 0, 1, 1, 1, 0, 0, 0, 0, 1, 0, 0}.;

[0184] In a possible example, when the length of the sequences in the first sequence set is 120, i.e., N = 120, the sequences in the first sequence set include: part or all of the sequences obtained by intercepting 120 elements from the sequences generated by modulo-2 addition of two preset m-sequences of length 127 to generate a 127-bit Gold sequence;

[0185] Among them, the generating polynomials of the two preset m-sequences of length 127 include: {x 7 + x 3 + 1 and x 7 + x + 1}, when the initial state of the first m-sequence is {1, 1, 1, 1, 1, 1, 1}, the initial states of the second m-sequence include:

[0186] {1, 0, 0, 1, 0, 0, 1}; {1, 0, 0, 1, 0, 1, 0}; {0, 0, 1, 0, 0, 1, 1}; {1, 0, 0, 1, 1, 1, 1}; {1, 1, 0, 0, 1, 0, 0}; {1, 1, 1, 0, 1, 1, 1}; {0, 1, 0, 0, 0, 0, 0}; {1, 0, 1, 0, 1, 0, 0}; {0, 1, 1, 0, 0, 1, 0}; {1, 1, 0, 1, 0, 0, 0}; {1, 0, 1, 0, 0, 0, 0}; {0, 0, 0, 1, 0, 0, 1}; {1, 0, 0, 0, 1, 0, 0}; {0, 0, 0, 0, 0, 0, 1}; {1, 1, 0, 0, 0, 1, 1}; {1, 0, 0, 1, 0, 0, 0}; {0, 1, 1, 1, 1, 1, 1}; {0, 1, 0, 0, 1, 0, 0}; {0, 0, 1, 0, 1, 0, 1}; {1, 1, 0, 0, 1, 1, 1}; {0, 0, 1, 0, 1, 1, 1}; {1, 0, 1, 1, 0, 0, 1}; {1, 0, 0, 0, 1, 0, 1}; {0, 0, 0, 1, 0, 0, 0}; {1, 1, 0, 1, 0, 1, 1}; {0, 1, 1, 1, 0, 1, 1}; {1, 0, 0, 1, 1, 0, 0}; {1, 1, 1, 0, 0, 0, 1}; {0, 0, 0, 1, 0, 1, 0}; {1, 1, 1, 0, 0, 0, 0}; or,

[0187] The generating polynomials of the two preset m-sequences of length 127 include: {x 7 + x3 +1 and x 7 +x 6 +1}, when the initial state of the first m-sequence is {1, 1, 1, 1, 1, 1, 1}, the initial states of the second m-sequence include:

[0188] {1, 0, 0, 1, 0, 0, 1}; {0, 0, 1, 1, 1, 1, 0}; {0, 0, 0, 1, 1, 1, 0}; {0, 1, 1, 0, 0, 1, 0}; {1, 1, 0, 1, 1, 1, 1}; {1, 1, 0, 0, 1, 0, 1}; {1, 0, 0, 1, 1, 0, 1}; {0, 0, 0, 0, 1, 0, 0}; {1, 0, 1, 0, 1, 1, 0}; {1, 0, 1, 1, 0, 0, 1}; {1, 1, 0, 0, 0, 0, 0}; {1, 0, 1, 0, 0, 0, 0}; {0, 0, 0, 0, 0, 0, 1}; {1, 0, 0, 1, 1, 0, 0}; {1, 1, 1, 0, 0, 1, 0}; {0, 1, 1, 1, 0, 1, 0}; {0, 0, 1, 1, 0, 1, 1}; {1, 1, 1, 1, 0, 0, 0}; {0, 0, 1, 1, 0, 0, 0}; {1, 1, 1, 1, 0, 0, 1}; {0, 0, 0, 1, 0, 1, 0}; {0, 1, 0, 0, 1, 1, 1}; {1, 1, 1, 1, 1, 0, 0}; {1, 1, 1, 0, 0, 0, 0}; {0, 0, 1, 1, 1, 0, 0}; {1, 0, 1, 1, 1, 1, 0}; {0, 0, 1, 1, 1, 1, 1}; {1, 1, 0, 0, 1, 1, 1}; {1, 1, 0, 1, 0, 0, 0}; {0, 0, 0, 0, 0, 1, 0}; or,

[0189] The generating polynomials of two preset m-sequences of length 127 include: {x 7 +x + 1 and x 7 +x 4 +1}, when the initial state of the first m-sequence is {1, 1, 1, 1, 1, 1, 1}, the initial states of the second m-sequence include:

[0190] {0,0,0,1,0,1,0}; {1,1,0,0,0,0,0}; {0,1,0,1,0,1,0}; {1,1,0,0,1,0,0}; {1,0,1,1,0,1,0}; {0,0,1,1,0,1,0}; {1,1,1,1,0,0,0}; {1,0,1,0,0,0,0}; {0,1,0,0,0,1,1}; {1,0,0,1,0,0,0}; {0,0,0,1,1,0,1}; {1,1,0,0,0,0,1}; {0,0,1,1,1,1,0}; {0,0,1,1,1,0,0}; {0,1,1,0,0,1,0}; {0,1,0,1,0,1,1}; {0,1,1,1,0,0,0}; {0,1,0,1,1,1,1}; {1,0,1,0,1,1,0}; {1,0,0,1,1,1,0}; {1,1,1,1,0,1,0}; {0,0,1,1,0,0,0}; {1,1,1,1,1,0,1}; {1,0,0,0,0,0,0}; {0,0,1,1,1,1,1}; {1,0,1,1,0,1,1}; {0,1,1,1,1,0,0}; {1,1,0,1,1,0,0}; {0,1,1,0,1,0,1}; {0,1,0,1,1,1,0}; or,

[0191] The generating polynomials of two preset m-sequences of length 127 include: {x 7 + x 6 + 1 and x 7 + x 4 + 1}, when the initial state of the first m-sequence is {1,1,1,1,1,1,1}, the initial state of the second m-sequence includes:

[0192] {1,0,0,1,0,1,1}; {0,0,1,1,1,1,1}; {0,0,1,0,1,1,1}; {1,1,1,0,0,1,1}; {1,0,1,1,1,1,0}; {0,1,1,0,0,1,0}; {1,1,0,0,0,1,1}; {1,1,1,0,0,1,0}; {0,1,1,0,1,0,1}; {1,1,0,1,1,1,1}; {1,0,0,1,0,0,0}; {1,1,0,1,0,0,1}; {1,1,0,1,1,0,0}; {0,0,0,1,1,0,1}; {1,1,0,0,0,0,0}; {0,1,1,1,1,1,1}; {0,1,1,1,1,1,0}; {0,1,1,1,1,0,1}; {1,1,0,1,0,1,0}; {0,1,0,0,1,0,1}; {0,0,0,1,0,1,0}; {1,1,0,1,0,0,0}; {0,0,0,0,1,1,0}; {1,0,1,1,0,0,0}; {0,1,0,0,1,1,0}; {1,1,1,0,0,0,0}; {0,0,0,0,1,0,0}; {0,0,0,1,1,0,0}; {0,1,0,1,0,1,0}; {1,0,0,0,0,1,1}。

[0193] The generating polynomials of all the above m-sequences are the polynomials with fewer terms in the primitive polynomials.

[0194] In a possible example, when the length of the sequences in the third sequence set is 18, i.e., N = 18, some or all of the sequences in sequence set 14 of the third sequence set, the sequences in sequence set 14 include the following 108 sequences, and the sequences {x n} corresponding to these sequences after π / 2BPSK modulation satisfy that when the time-domain filtering is used and the filtering coefficients are [0.1, 1, 0.1], the PAPR is less than 2.89 dB. When the filtering coefficients are [0.16, 1, 0.16], the PAPR is less than 2.35 dB. When the filtering coefficients are [0.22, 1, 0.22], the PAPR is less than 1.76 dB. When the filtering coefficients are [0.28, 1, 0.28], the PAPR is less than 1.27 dB. At the same time, the second maximum normalized power of the frequency-domain sequences corresponding to {x n} is less than 0.5 dB, and the second minimum normalized power is greater than -0.5 dB, that is, the frequency-domain flatness of the sequences {x n} corresponding to them is relatively good:

[0195] {1,0,0,0,0,0,0,0,1,1,0,1,1,0,0,1,0,1}；{1,0,0,1,1,0,1,1,0,0,0,0,0,0,0,1,0,1}；

[0196] {1,0,0,1,1,1,0,1,1,1,0,1,0,0,0,0,0,1}；{1,1,1,0,1,0,0,0,1,0,0,0,1,1,0,1,0,0}；

[0197] {1,1,0,0,1,1,1,1,0,0,0,1,0,1,0,0,1,0}；{1,0,0,1,0,1,0,1,1,1,0,0,1,1,1,1,0,0}；

[0198] {1,0,0,1,1,1,0,1,1,0,1,0,1,1,1,0,0,0}；{1,0,0,0,0,1,1,0,1,0,1,0,0,0,1,0,0,0}；

[0199] {1,0,0,0,1,0,1,0,1,1,0,0,0,0,1,1,1,1}；{1,0,1,1,0,1,0,0,0,0,0,1,0,0,0,1,1,1}；

[0200] {1,0,1,1,0,1,1,1,1,0,1,0,0,0,0,0,1,0}；{1,0,1,1,0,0,0,0,0,0,0,1,0,1,0,0,1,1}；

[0201] {1,0,1,1,0,1,0,0,0,1,1,1,0,1,1,1,1,1}；{1,0,1,1,1,1,1,0,1,0,0,0,0,1,0,0,1,0}；

[0202] {1,1,0,0,0,0,0,0,0,1,1,0,1,0,1,0,0,1}；{1,1,0,1,0,0,1,1,0,1,0,1,1,1,1,1,1,1}；

[0203] {1,1,1,1,1,1,0,0,1,0,0,1,0,1,0,1,1,0}；{1,0,0,0,0,0,0,0,1,0,1,1,0,1,1,0,1,1}；

[0204] {1,0,0,1,0,0,1,0,0,1,0,1,1,1,1,1,1,1}；{1,1,0,0,0,0,1,0,0,1,0,1,0,0,0,1,1,0}；

[0205] {1,0,0,0,1,1,0,0,0,1,0,1,0,0,1,0,0,0}；{1,0,0,0,1,1,0,1,0,1,1,0,0,0,1,1,1,1}；

[0206] {1,0,0,0,0,1,1,1,0,0,1,0,1,0,0,1,1,1}；{1,0,0,0,0,0,1,1,1,1,0,1,1,0,1,0,1,1}；

[0207] {1,0,0,0,0,0,1,0,1,0,0,0,1,1,1,0,1,0}；{1,0,0,0,0,1,0,1,0,0,0,0,0,1,0,1,1,0}；

[0208] {1,0,0,1,0,1,1,1,0,0,0,1,0,1,0,0,0,0}；{1,1,0,1,0,1,1,1,1,1,0,0,0,1,1,0,1,0}；

[0209] {1,1,0,1,1,1,1,0,1,0,0,1,1,0,1,0,0,0}；{1,0,0,1,0,0,0,0,0,1,0,1,0,0,0,0,1,1}；

[0210] {1,0,0,1,0,1,1,1,1,0,1,1,1,1,1,0,1,0}；{1,0,1,1,0,0,0,1,1,1,1,1,0,1,0,1,1,1}；

[0211] {1,0,1,1,1,0,0,0,0,1,0,0,0,1,1,1,0,1}；{1,1,1,0,1,0,1,0,0,0,1,1,1,0,1,1,1,1}；

[0212] {1,0,1,1,1,1,0,0,0,1,0,1,0,0,0,0,1,1}；{1,0,0,0,0,1,0,1,0,0,0,1,1,1,1,0,1,0}；

[0213] {1,0,1,1,0,0,0,0,1,1,1,0,0,0,1,1,0,1}；{1,0,0,1,0,1,1,1,0,1,1,1,1,1,0,1,1,0}；

[0214] {1,1,0,1,0,0,1,1,0,0,1,0,0,0,0,0,1,0}；{1,0,0,0,0,0,0,0,1,0,1,1,0,1,0,1,1,0}；

[0215] {1,0,0,0,1,0,0,1,0,0,1,0,1,0,0,0,0,0}；{1,0,0,0,1,0,1,0,0,1,1,1,1,1,0,1,1,0}；

[0216] {1,0,0,1,0,1,0,0,1,0,1,1,1,1,1,1,1,0}；{1,1,0,1,0,1,1,0,1,1,0,1,1,1,1,1,1,0}；

[0217] {1,1,1,1,0,1,0,1,1,0,1,1,0,1,1,1,0,0}；{1,0,0,0,0,0,0,1,0,0,1,0,0,1,0,1,0,0}；

[0218] {1,0,1,1,1,0,0,1,1,0,1,1,1,1,1,0,0,1}；{1,0,0,0,1,0,1,0,1,1,0,0,0,1,1,1,0,0}；

[0219] {1,0,0,0,0,0,0,1,0,1,1,1,1,0,1,0,0,0}；{1,1,1,1,0,0,0,0,0,0,1,1,1,1,0,1,0,1}；

[0220] {1,0,0,0,0,0,0,1,1,1,1,1,1,0,1,0,0,1}；{1,0,1,0,0,0,0,1,0,1,1,1,1,1,1,0,0,0}；

[0221] {1,1,0,1,0,0,0,0,0,0,1,0,1,1,1,1,0,0}；{1,1,1,1,0,0,0,1,0,0,0,1,0,1,0,1,1,1}；

[0222] {1,1,1,0,1,0,1,0,0,0,1,0,0,0,1,1,1,1}；{1,0,0,1,1,1,1,1,1,1,0,1,0,0,1,1,0,1}；

[0223] {1,0,1,1,1,1,1,1,1,0,0,1,0,1,0,0,1,1}；{1,0,0,0,0,0,1,0,1,1,1,1,0,0,1,1,0,1}；

[0224] {1,0,0,1,1,0,0,0,0,1,0,1,1,1,1,1,0,1}；{1,0,0,0,0,1,1,0,0,1,1,0,0,0,0,1,0,1}；

[0225] {1,0,1,0,0,0,1,0,0,0,1,1,1,0,0,0,1,1}；{1,0,1,0,1,0,0,0,1,1,1,0,0,0,1,1,0,0}；

[0226] {1,1,0,1,1,1,0,1,0,1,1,0,0,0,1,1,1,0}；{1,0,1,1,0,1,0,1,1,1,1,0,0,1,0,0,0,0}；

[0227] {1,0,0,0,0,1,0,1,0,0,1,0,0,0,0,0,1,0}；{1,1,1,0,0,0,0,1,0,1,0,1,1,1,1,1,1,0}；

[0228] {1,0,0,0,0,0,0,1,0,1,0,1,1,1,1,0,0,0}；{1,0,0,0,0,1,1,0,1,0,0,0,0,0,1,0,0,1}；

[0229] {1,0,0,1,1,1,1,0,1,0,0,1,0,0,0,0,0,1}；{1,0,0,0,0,0,1,0,1,1,1,0,1,0,1,1,1,0}；

[0230] {1,0,0,0,1,0,0,0,1,0,1,0,0,1,0,0,0,0}；{1,0,0,0,1,1,1,1,1,0,1,1,0,1,0,1,1,1}；

[0231] {1,1,0,0,1,1,1,0,1,0,1,1,1,0,1,0,0,0}；{1,1,1,0,1,0,0,0,1,1,0,1,0,1,1,1,1,1}；

[0232] {1,1,1,1,1,0,1,0,1,1,0,0,0,1,0,1,1,1}；

[0233] {1,0,0,0,1,0,1,1,0,1,1,0,1,1,1,1,1,0}；

[0234] {1,0,1,1,0,1,0,0,0,1,1,0,0,0,0,0,1,0}；

[0235] {1,0,0,0,0,0,1,0,0,1,0,0,0,0,1,0,0,1}；

[0236] {1,1,1,0,1,0,1,1,0,0,0,0,0,0,1,1,0,1}；

[0237] {1,0,0,1,0,0,0,1,1,1,1,1,0,0,0,1,0,1}；

[0238] {1,0,1,0,0,0,1,1,1,1,1,0,0,0,1,0,0,1}；

[0239] {1,1,1,1,1,1,0,0,1,0,1,0,0,0,1,0,1,1}；

[0240] {1,0,0,0,0,0,1,0,1,0,0,1,0,1,1,1,1,0}；

[0241] {1,0,0,0,0,1,0,1,1,0,1,0,1,1,1,1,1,0}；

[0242] {1,0,0,0,0,1,1,1,1,0,1,0,1,0,0,1,1,0}；

[0243] {1,0,0,1,0,1,0,1,1,1,1,0,0,0,0,1,1,0}；

[0244] {1,0,0,0,0,1,1,1,0,1,1,0,1,0,1,1,0,0}；

[0245] {1,1,0,0,1,0,1,0,0,1,0,0,0,1,1,1,1,0}；

[0246] {1,0,0,0,1,1,0,0,0,0,1,1,0,1,0,1,0,0}；

[0247] {1,0,0,0,0,1,0,1,1,1,0,0,0,0,1,0,1,0}；

[0248] {1,1,1,1,1,0,1,0,0,1,0,0,0,0,1,0,1,1}；

[0249] {1,0,0,0,0,0,0,1,1,0,1,0,1,1,0,1,0,0}；

[0250] {1,0,0,1,0,1,0,0,1,1,1,1,1,1,0,0,0,1}；

[0251] {1,0,1,1,1,1,0,0,1,0,1,0,0,0,0,1,1,1}；

[0252] {1,1,0,0,0,1,1,1,0,1,1,1,1,0,0,1,0,1}；

[0253] {1,1,1,0,0,1,0,1,0,0,1,1,1,1,0,1,1,1}；

[0254] {1,0,0,0,0,0,0,1,0,0,1,1,1,1,1,0,0,1}；

[0255] {1,0,0,1,1,1,1,1,0,0,1,0,0,0,0,0,0,1}；

[0256] {1,0,1,0,1,1,1,1,0,0,0,0,1,0,0,1,0,0}；

[0257] {1,1,1,0,0,1,0,1,0,1,1,0,0,0,0,1,0,0}；

[0258] {1,1,1,1,0,1,1,1,1,0,0,1,0,1,0,1,1,0}；

[0259] {1,1,0,0,0,0,1,0,1,0,0,0,1,0,0,1,0,0}；

[0260] {1,1,0,1,1,0,1,1,0,0,0,0,0,1,0,1,0,0}；

[0261] {1,1,1,0,0,1,1,1,1,0,1,0,1,0,1,1,1,0}；

[0262] {1,0,0,1,1,1,1,0,0,0,1,0,1,0,1,0,0,0}；

[0263] {1,0,1,1,1,0,1,0,0,1,0,1,1,0,0,0,0,0}；

[0264] {1,0,1,1,1,1,1,1,0,0,1,0,1,1,0,1,0,0}；

[0265] {1,1,0,1,0,1,1,1,1,1,0,0,1,0,0,1,0,0}。

[0266] In a possible example, when the sequence length in the fifth sequence set is 12, that is, N = 12, some or all of the sequences in the sequence set 15 in the fifth sequence set, the sequences in the sequence set 15 include the following 30 sequences, and the sequences corresponding to these sequences after π / 2 BPSK modulation are {x n} satisfy that when using time-domain filtering with the filter coefficients [0.28, 1, 0.28], the PAPR is less than 1.50 dB. At the same time, it satisfies that the first maximum normalized power of the frequency-domain sequence corresponding to {x n} is less than 4 dB, the first minimum normalized power is greater than -4 dB, and the cross-correlation is less than 0.85, that is, the frequency-domain flatness of the corresponding sequence {x n} is relatively good:

[0267] {1,0,1,1,0,1,1,0,1,0,0,0}; {1,0,1,0,0,1,1,1,0,0,1,0};

[0268] {1,0,1,0,1,1,0,1,1,0,1,0}; {1,0,1,1,0,0,0,1,1,0,1,1}; {1,0,1,0,0,1,0,0,1,0,1,0}; {1,0,1,1,0,0,1,0,1,0,0,1};

[0269] {1,0,1,1,0,0,0,1,0,0,0,1}; {1,0,1,1,0,1,1,1,0,1,1,0};

[0270] {1,0,1,1,0,1,0,1,1,0,1,1}; {1,0,1,1,0,1,0,0,0,1,0,1}; {1,0,1,0,1,0,1,1,0,0,0,1}; {1,0,1,0,1,1,0,0,1,0,0,1};

[0271] {1,0,1,0,0,0,1,0,0,0,0,0}; {1,1,1,1,0,1,1,1,0,1,0,1};

[0272] {1,0,1,1,0,1,0,1,1,1,0,1}; {1,0,1,0,1,1,1,0,1,1,0,1}; {1,0,1,0,0,1,0,0,1,0,0,0}; {1,0,1,0,1,1,0,1,1,0,1,1};

[0273] {1,0,1,0,0,1,0,1,0,0,1,1}; {1,0,1,0,0,1,0,1,1,1,0,0};

[0274] {1,0,1,1,0,1,0,1,1,0,0,0}; {1,0,1,0,1,1,0,1,0,0,0,1}; {1,0,1,0,1,1,0,1,1,0,0,0}; {1,0,1,1,0,1,0,1,0,0,0,1};

[0275] {1,0,1,0,0,1,0,0,1,1,1,0}; {1,0,1,0,1,0,0,0,1,1,0,1};

[0276] {1,0,1,1,0,0,1,1,1,0,0,0}; {1,0,1,1,0,1,1,0,0,1,1,1}; {1,0,1,1,0,0,1,1,1,1,0,1}; {1,0,1,1,0,1,1,1,1,0,0,1}.

[0277] In a possible example, when the sequence length in the fifth sequence set is 18, i.e., N = 18, some or all of the sequences in sequence set 16 of the fifth sequence set, the sequences in sequence set 16 include the following 30 sequences, and the sequences corresponding to these sequences after π / 2 BPSK modulation {x n} satisfy that when using time-domain filtering with filter coefficients [0.1, 1, 0.1], the PAPR is less than 2.89 dB. When the filter coefficients are [0.16, 1, 0.16], the PAPR is less than 2.35 dB. When the filter coefficients are [0.22, 1, 0.22], the PAPR is less than 1.76 dB. When the filter coefficients are [0.28, 1, 0.28], the PAPR is less than 1.27 dB. At the same time, the second largest normalized power of the frequency-domain sequence corresponding to {x n} is less than 0.5 dB, the second smallest normalized power is greater than -0.5 dB, and the cross-correlation coefficient is less than 0.672, that is, the frequency-domain flatness of the corresponding sequence {x n} is relatively good:

[0278] {1,0,1,1,0,0,1,1,1,1,1,0,1,0,1,0,0,1};

[0279] {1,0,1,0,1,0,0,0,0,0,1,1,0,0,1,0,0,1};

[0280] {1,1,1,1,1,1,0,0,0,0,1,0,0,1,1,1,1,0};

[0281] {1,0,1,0,1,1,1,0,1,0,0,1,1,1,0,1,0,0}；

[0282] {1,0,1,1,0,1,0,1,1,0,0,1,0,0,0,1,0,0}；

[0283] {1,0,1,1,1,0,0,1,1,1,1,1,0,0,0,0,1,1}；

[0284] {1,0,0,0,0,1,0,0,1,0,0,1,0,0,1,1,1,0}；

[0285] {1,0,0,0,1,1,0,1,1,0,1,1,0,1,1,1,1,0}；

[0286] {1,1,1,1,0,0,1,1,0,1,0,1,1,0,0,1,0,1}；

[0287] {1,0,1,1,1,1,1,0,0,1,1,1,1,1,0,1,0,0}；

[0288] {1,0,1,0,1,0,1,1,1,0,0,1,0,1,1,1,0,0}；

[0289] {1,0,1,1,0,0,0,1,1,0,1,1,1,1,0,1,1,0}；

[0290] {1,0,1,1,0,1,1,0,0,0,1,1,0,1,1,0,1,0}；

[0291] {1,1,1,0,0,1,0,0,1,0,1,0,1,0,0,1,0,0}；

[0292] {1,0,1,0,0,1,0,0,0,1,0,0,1,1,1,0,1,0}；

[0293] {1,1,1,0,0,0,0,0,0,0,0,1,0,0,1,1,1,0}；

[0294] {1,0,1,1,1,0,0,1,0,1,0,0,1,1,1,0,1,0}；

[0295] {1,0,0,0,1,0,1,0,1,0,0,0,1,1,0,1,0,1}；

[0296] {1,0,1,1,0,1,0,0,0,0,0,1,1,1,1,0,1,1}；

[0297] {1, 0, 1, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0};

[0298] {1, 1, 1, 1, 0, 1, 1, 0, 1, 1, 0, 0, 1, 0, 0, 1, 0, 0};

[0299] {1, 0, 0, 0, 0, 1, 1, 0, 1, 1, 0, 1, 0, 1, 1, 1, 0, 0};

[0300] {1, 0, 1, 1, 0, 0, 0, 1, 1, 1, 0, 1, 1, 0, 0, 0, 1, 0};

[0301] {1, 1, 1, 1, 1, 1, 0, 1, 1, 0, 0, 0, 1, 0, 0, 1, 0, 0};

[0302] {1, 0, 1, 0, 0, 1, 1, 1, 0, 0, 1, 1, 1, 1, 0, 1, 1, 0};

[0303] {1, 0, 1, 1, 1, 1, 0, 0, 1, 1, 1, 0, 0, 1, 0, 1, 0, 1};

[0304] {1, 1, 0, 1, 0, 1, 0, 0, 1, 0, 0, 1, 1, 1, 1, 0, 0, 0};

[0305] {1, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 1, 0, 0};

[0306] {1, 1, 0, 1, 1, 0, 0, 1, 0, 1, 1, 1, 0, 0, 0, 0, 1, 1};

[0307] {1, 0, 1, 1, 0, 1, 0, 0, 1, 0, 0, 0, 0, 1, 1, 0, 0, 0}。

[0308] In a possible example, when the sequence length in the fifth sequence set is 24, that is, N = 24, some or all of the sequences in sequence set 17 in the fifth sequence set, the sequences in sequence set 17 include the following 30 sequences, and the sequences {x n} corresponding to these sequences after π / 2 BPSK modulation satisfy that when using time-domain filtering with a filtering coefficient of [0.28, 1, 0.28], the PAPR is less than 1.39 dB, and at the same time satisfy that the first maximum normalized power of the frequency-domain sequence corresponding to {x n} is less than 1.5 dB, the first minimum normalized power is greater than -1.5 dB, and the cross-correlation coefficient is less than 0.6, that is, the frequency-domain flatness of the corresponding sequence {x n} is relatively good:

[0309] {1,0,1,0,1,1,0,0,1,0,0,1,0,1,0,1,0,0,1,0,0,1,1,0}；

[0310] {1,0,1,0,0,0,1,1,0,1,0,0,0,1,0,1,1,0,0,0,1,0,1,1}；

[0311] {1,0,1,0,1,1,0,0,0,1,0,0,1,0,1,1,1,0,1,0,1,0,0,1}；

[0312] {1,1,1,1,1,0,0,1,0,0,0,1,1,1,1,0,1,1,1,1,1,1,0,0}；

[0313] {1,0,1,0,0,0,1,0,0,1,1,1,0,0,0,0,0,1,0,0,1,0,1,1}；

[0314] {1,1,1,1,0,1,1,1,0,0,1,0,0,1,0,1,0,0,0,1,1,1,1,0}；

[0315] {1,0,1,0,0,0,1,0,0,0,1,1,0,1,0,1,1,0,0,1,0,1,0,0}；

[0316] {1,1,1,1,0,0,1,1,1,1,1,0,0,0,0,0,1,0,0,0,1,0,0,1}；

[0317] {1,0,1,1,0,1,1,1,1,0,1,1,1,0,0,1,0,0,0,0,1,1,1,1}；

[0318] {1,0,1,0,0,0,1,0,1,0,1,1,0,0,0,1,1,1,0,0,0,1,1,0}；

[0319] {1,1,1,1,0,0,0,0,1,0,0,1,1,1,0,1,1,1,1,0,1,1,0,1}；

[0320] {1,0,1,0,0,1,1,1,0,0,0,1,1,1,0,0,1,0,1,0,1,1,1,0}；

[0321] {1,1,1,1,1,0,1,0,0,1,1,0,1,1,1,0,1,1,0,1,0,1,0,0}；

[0322] {1,0,1,0,0,0,1,1,1,0,0,1,0,1,0,0,1,1,1,0,0,0,1,0}；

[0323] {1,1,1,1,1,0,1,0,1,1,0,0,0,1,0,0,1,0,1,0,0,1,1,0}；

[0324] {1,0,1,0,0,1,1,1,0,1,1,0,1,0,1,1,0,0,1,0,0,0,0,0}；

[0325] {1,0,1,0,0,1,1,1,0,1,1,1,0,1,0,0,1,1,0,1,0,1,0,1}；

[0326] {1,0,1,0,0,1,0,1,0,1,0,0,1,1,0,1,0,0,0,1,0,0,0,1}；

[0327] {1,0,1,0,0,0,1,1,1,0,0,1,0,0,0,0,0,0,0,1,1,1,0,0}；

[0328] {1,0,1,0,1,1,1,0,0,0,1,0,0,1,0,1,0,0,1,0,0,0,1,1}；

[0329] {1,0,1,0,0,1,0,0,0,1,1,1,0,1,0,1,1,1,0,0,0,1,0,0}；

[0330] {1,0,1,0,1,1,1,0,1,1,1,1,0,0,1,0,0,0,1,0,0,1,0,1}；

[0331] {1,0,1,0,0,0,1,0,0,0,0,1,1,0,0,0,1,1,0,1,0,1,0,0}；

[0332] {1,0,1,0,1,1,1,0,0,0,0,0,1,1,1,0,1,1,1,0,0,0,1,1}；

[0333] {1,0,1,0,0,1,1,0,1,1,0,1,1,1,0,0,0,0,1,1,1,1,1,0}；

[0334] {1,0,1,0,1,0,0,1,1,1,0,0,1,1,1,0,1,0,1,1,1,1,0,1}；

[0335] {1,0,1,0,0,0,1,1,0,1,0,0,0,1,1,0,1,0,0,1,0,0,1,0};

[0336] {1,1,1,0,0,0,1,1,0,1,1,1,0,1,0,1,1,0,1,1,1,1,0,1};

[0337] {1,0,1,0,0,0,0,1,1,1,0,1,0,1,0,0,1,1,0,1,0,0,0,1}; {1,0,1,0,0,1,0,0,1,1,0,0,0,0,1,0,1,0,0,1,1,0,1,0}.

[0338] In a possible example, after the terminal device accesses the network, the process of determining a sequence {x n} can be as Figure 2 shown. The specific process is as follows:

[0339] The terminal device determines the sequence {b n} and A. The value of n ranges from 0 to N - 1. A is a non-zero complex number. The sequence {b n} can be stored in the terminal device, can be configured by the network device for the terminal device, or can be calculated by the terminal device according to a predefined formula.

[0340] S102: Generate a first signal and send it to the network device.

[0341] Optionally, the process of generating the first signal, as Figure 3 shown, in a specific implementation is: First, the terminal device performs a discrete Fourier transform (DFT) on the N elements in the sequence {x n} to obtain the sequence {f n}. Here, it mainly means that the terminal device uses the N elements in the configured sequence {x n} to perform DFT processing to obtain a frequency-domain sequence. The frequency-domain sequence here refers to the sequence {f n}. Then, the terminal device maps the sequence {f n} to N subcarriers, generates a first signal and sends it to the network device.

[0342] Optionally, the specific process of the terminal device performing DFT processing on the sequence {x n} containing N elements to obtain a frequency-domain sequence, and then mapping the frequency-domain sequence to N subcarriers respectively to generate a first signal and send it to the network device, as Figure 3 shown, includes:

[0343] S301, the terminal device performs DFT processing on a sequence {x n} containing N elements to obtain a sequence {f n}.

[0344] Optionally, when executing S301, as Figure 4a shown, during the process that the terminal device performs DFT processing on the sequence {x n} to obtain the sequence {f n}, a filter may not be used. Optionally, as Figure 4b shown, during the process that the terminal device performs DFT processing on the sequence {x n} to obtain the sequence {f n}, after using the filter, DFT processing may be performed again to obtain the sequence {f n}. Optionally, as Figure 4c shown, during the process that the terminal device performs DFT processing on the sequence {x n} to obtain the sequence {f n}, after performing DFT processing, the filter may be used again to obtain the sequence {f n}.

[0345] S302, the terminal device maps the sequence {f n} to N subcarriers respectively to obtain an N-point frequency-domain signal.

[0346] In a specific implementation, the N-point frequency-domain signal is a frequency-domain signal containing N elements.

[0347] In the following Figure 5a and Figure 5b disclosed in the embodiments of the present application, s represents the index of the first subcarrier among the N subcarriers to which the sequence {f n} is mapped in the subcarriers of the communication system.

[0348] Optionally, the terminal device maps the N elements in the sequence {f n} to N consecutive subcarriers respectively. As Figure 5a shown, optionally, the elements f0 to f n in the sequence {f N-1} are mapped to N consecutive subcarriers respectively, and the subcarrier labels are s+0, s+1,..., s+N-1.

[0349] In a possible example, the terminal device maps the N elements in the sequence {f n} to N subcarriers in descending order of subcarriers. Among them, one element in a sequence {f n} is mapped to one frequency-domain subcarrier. The frequency-domain subcarrier is the smallest unit of the frequency-domain resource, which is used to carry data information.

[0350] In a possible example, the terminal device maps N elements in the sequence {f n} to N subcarriers in ascending order of subcarrier frequency. Mapping an element in the sequence {f n} to a subcarrier means carrying this element on this subcarrier. After mapping, when the terminal device transmits data via radio frequency, it is equivalent to transmitting this element on this subcarrier. In a communication system, different terminal devices can occupy different subcarriers to transmit data. The positions of the N subcarriers among the multiple subcarriers existing in the communication system can be predefined or configured by the network device via signaling.

[0351] Optionally, the N elements in the sequence {f n} can also be respectively mapped to N equally spaced subcarriers. As Figure 5b shown, optionally, the interval between the N subcarriers is 1, and the N subcarriers are equally spaced in the frequency domain. The interval between the subcarriers to which the elements f0 to f n in the sequence {f N-1} are mapped is 1 subcarrier. Specifically: they are respectively mapped to N equally spaced subcarriers with subcarrier numbers s+0, s+2, …, s+2(N-1)

[0352] The embodiments of the present application for the manner of respectively mapping the N elements in the sequence {f n} to N subcarriers are not limited to the above manner.

[0353] S303, the terminal device performs an inverse fast Fourier transformation (IFFT) on the frequency domain signal containing N elements to obtain the corresponding time domain signal, and adds a cyclic prefix to this time domain signal to generate a first signal.

[0354] S304, the terminal device transmits this first signal via radio frequency.

[0355] Optionally, when performing S303, the time domain signal obtained by the terminal device after performing IFFT on the generated N-point frequency domain signal is an orthogonal frequency division multiplexing (OFDM) symbol. When performing S303, the terminal device transmits the first signal via radio frequency. That is, the terminal device transmits the first signal carrying the sequence {f n} on the N subcarriers.

[0356] In a possible example, the terminal device can transmit the first signal carrying the sequence {f nThe first signal of {}. It is also possible to send the bearing sequence {f} on multiple OFDM symbols n The first signal of {}.

[0357] It should be noted that, in the embodiments of the present application, the method for generating the first signal is not limited to the above implementation manner in which the terminal device performs DFT processing on the sequence {x} containing N elements to obtain a frequency-domain sequence, and then maps the frequency-domain sequence to N subcarriers respectively to generate the first signal and send it to the network device. n} to obtain a frequency-domain sequence, and then map the frequency-domain sequence to N subcarriers respectively to generate the first signal and send it to the network device.

[0358] Optionally, the sequence {x} can be used with a shaping filter to obtain the sequence {y} n}, and then modulate the sequence {y} n} onto a carrier to generate the first signal and send it to the network device. n} onto a carrier to generate the first signal and send it to the network device.

[0359] Optionally, the first signal is a reference signal. Specifically, the first signal can be UCI, DMRS, SRS, and PTRS. It can also be acknowledgment (ACK) information, or negative acknowledgment (NACK) information, or uplink scheduling request (SR) information. The embodiments of the present application are not limited to including the above information for the first signal.

[0360] Optionally, the first signal is a signal for carrying communication information. In a specific implementation, the communication information can be carried in a sequence selection manner or a sequence modulation manner, but is not limited thereto.

[0361] Optionally, the sequence selection method is: allocate 2 n orthogonal sequences to a terminal device. These 2 n orthogonal sequences can optionally be 2 cyclic shifts of 1 root sequence. These 2 n orthogonal sequences can carry n bits of information. For example, 4 sequences numbered 0, 1, 2, and 3. Among them, 00 corresponds to sequence 0, 01 corresponds to sequence 1, 10 corresponds to sequence {2}, and 11 corresponds to sequence 3. In this way, 4 sequences can carry 2 bits of information. n orthogonal sequences can carry n bits of information. For example, 4 sequences numbered 0, 1, 2, and 3. Among them, 00 corresponds to sequence 0, 01 corresponds to sequence 1, 10 corresponds to sequence {2}, and 11 corresponds to sequence 3. In this way, 4 sequences can carry 2 bits of information.

[0362] Optionally, the sequence modulation method is as follows: allocate 1 sequence to a user, and generate modulation symbols for the information to be transmitted by the user. The modulation symbols include but are not limited to BPSK symbols, QPSK symbols, 8QAM symbols, 16QAM symbols, etc. Multiply the modulation symbols by the sequence to generate the actual transmission sequence. For example, a BPSK symbol may be 1 or -1. For a sequence {x n}, after modulation based on the BPSK symbol, the transmitted sequence can be {x n} or {-x n}.

[0363] In a possible example, as Figure 2 corresponding to the description in the specification, after the terminal device accesses the network, it can determine the sequence {x n} containing N elements configured by the network device through A and the sequence {b n}.

[0364] It should be noted that for the sequence modulation method, different values of A in the sequence {x n} carry different information.

[0365] Optionally, A can be a modulation symbol. In this case, after one path of data information bits or control information bits are modulated, A is obtained. A is carried on the N elements included in the sequence {x n}, and A does not change with the change of n.

[0366] Optionally, A is a constant. For example, A = 1. For example, A can be a symbol known to both the terminal device and the network device. A can also represent amplitude.

[0367] It should be noted that A being a constant in one transmission time unit does not mean that A is fixed and unchangeable. When sending the first signal at different moments, A can be variable. For example, all N elements included in the sequence {x n} are reference signals, A is the amplitude of the reference signal, and the terminal device can send according to A = 1 when sending the first signal for the first time. The terminal device can send according to A = 2 when sending the first signal for the second time.

[0368] S103: The network device receives the first signal carried on N subcarriers and obtains the N elements in the sequence {x n}.

[0369] For the execution of S103, the network device receives the signals on N subcarriers according to the positions of the N subcarriers predefined or configured by the base station in the subcarriers of the communication system.

[0370] Optionally, the network device obtains the first signal on N subcarriers on consecutive N subcarriers, or obtains the first signal on the N subcarriers on N equally spaced subcarriers.

[0371] Optionally, the way to obtain N elements in the sequence {x n} is that the network device obtains N elements in the sequence {f n}, performs an inverse discrete Fourier transformation (IDFT) on the sequence {f n}, and obtains N elements in the sequence {x n}.

[0372] As can be seen from the description in the specification corresponding to S102, the first signal is obtained by the terminal device performing DFT processing on N elements in the sequence {x n} to obtain the sequence {f n}, and then mapping the sequence {f n} to N subcarriers for generation. The specific description of the sequence {x n} can refer to the corresponding descriptions in S101 and S102 above, and will not be elaborated here.

[0373] In one possible design for the execution of S103, first, the network device obtains the first signal on N subcarriers on consecutive N subcarriers, or obtains the first signal on the N subcarriers on N equally spaced subcarriers. Then, the cyclic prefix of the first signal is removed to obtain a time-domain signal. Then, DFT of M points is performed on the time-domain signal to obtain a frequency-domain signal containing N elements, where M is greater than or equal to N. Then, based on the frequency-domain signal containing N elements, N elements in the sequence {f n} are determined.

[0374] In a specific implementation, after the terminal device accesses the network, it uses the configured sequence {x n} to send PUSCH, and the network device uses the sequence {x n} configured for the terminal device to receive PUSCH.

[0375] S104: The network device processes the first signal according to N elements in the sequence {x n}.

[0376] Optionally, the schematic diagram of the process of the network device processing the first signal is as shown in Figure 6 . The network device obtains all possible sequences by traversing the sequence {x' n} stored locally. The obtained sequence {x n} is compared with the sequence {x' nProcess all possible sequences separately and perform maximum likelihood comparison to obtain the data transmitted by the terminal device.

[0377] Combined with the description of the corresponding specification in S102 above, the value combinations of the two-bit information are {(0, 0), (0, 1), (1, 0), (1, 1)}. Combining Figure 2 , when the two-bit information is (0, 0), the obtained sequence {x' n} is the sequence {x1' ，,n}, when the two-bit information is (0, 1), the obtained sequence {x' n} is the sequence {x' 2,n}, when the two-bit information is (1, 0), the obtained sequence {x' n} is the sequence {x3' ,n}, when the two-bit information is (1, 1), the obtained sequence {x' n} is the sequence {x' 4,n}. The four sequences {x1' ，,n}, {x' 2,n}, {x3' ,n}, {x' 4,n} can be cyclic shift sequences of the same sequence. Correlate the sequence {x n} with {x1' ，,n}, {x' 2,n}, {x3' ,n}, {x' 4,n} respectively to obtain four correlation values. The value of the two-bit information corresponding to the maximum correlation value is the data obtained by the network device. For example, if the maximum correlation value is obtained by correlating the sequence {x n} with {x1' ，,n}, then the two-bit information is (0, 0).

[0378] A sequence-based signal processing method disclosed in an embodiment of the present application determines a sequence used for transmitting a PUSCH signal. The sequence is a sequence {x n} including N elements, and x n is an element in the sequence {x n}. The determined sequence {x n} is a sequence that meets the preset conditions. Then, a first signal is generated and transmitted. Using the above-determined sequence, it is possible to maintain good sequence frequency-domain flatness, low PAPR value, and low inter-sequence cross-correlation when using PUSCH to transmit signals, thereby meeting the communication application environment of using PUSCH to transmit signals. In particular, it meets the NR system or NR-like scenarios.

[0379] Further, based on the sequence-based signal processing method disclosed in the embodiments of the present application above, the sequence {x n} including N elements determined in S101 involves a sequence {s n}, and the set composed of the sequence {s n} composed of elements s n} includes at least the first sequence in the second sequence set or an equivalent sequence of the first sequence, and the second sequence in the second sequence set or an equivalent sequence of the second sequence. That is to say, the set composed of the sequence {s n} composed of elements s n} includes at least two non-equivalent sequences among the sequences in the second sequence set and the equivalent sequences of the sequences in the second sequence set, that is, the set composed of the sequence {s n} composed of elements s n} includes at least two sequences in the second sequence set, or the set composed of the sequence {s n} composed of elements s n} includes at least one sequence in the second sequence set and an equivalent sequence of another sequence in the second sequence set, or the set composed of the sequence {s n} composed of elements s n} includes at least an equivalent sequence of one sequence in the second sequence set and an equivalent sequence of another sequence in the second sequence set. Here, in the case where there is partial overlap between the sequences in the first sequence set and the second sequence set, one of the first sequence and the second sequence can be a sequence in the first sequence set, or neither of them is a sequence in the first sequence set.

[0380] In another possible embodiment, when N = 18, the set composed of the sequence {s n} composed of elements s n} in S101 includes at least the first sequence in the fourth sequence set and the second sequence in the fourth sequence set. That is to say, the set composed of the sequence {s n} composed of elements s n} includes at least two sequences in the fourth sequence set.

[0381] It should be noted that the number of sequences in the second sequence set is at least 2, and can also include more than 2 sequences.

[0382] When N = 12, the second sequence set is sequence set 4 or sequence set 5; and / or when N = 24, the second sequence set is sequence set 6 or sequence set 7 or sequence set 8 or sequence set 9; and / or when N = 36, the second sequence set is sequence set 10 or sequence set 11 or sequence set 12 or sequence set 13.

[0383] The sequence set 4 includes some or all of the following 30 sequences, and the sequences {x n} corresponding to these sequences and their equivalent sequences after π / 2BPSK modulation satisfy that when using time-domain filtering with filter coefficients [0.1, 1, 0.1], the PAPR is less than 3.05 dB; when the filter coefficients are [0.16, 1, 0.16], the PAPR is less than 2.52 dB; when the filter coefficients are [0.22, 1, 0.22], the PAPR is less than 1.95 dB; when the filter coefficients are [0.28, 1, 0.28], the PAPR is less than 1.50 dB. At the same time, the first maximum normalized power of the frequency-domain sequences corresponding to {x n} is less than 4 dB, and the first minimum normalized power is greater than -4 dB. At the same time, the cross-correlation coefficient between the sequences {x n} corresponding to these sequences and their equivalent sequences after π / 2BPSK modulation is less than 0.85:

[0384] {1, 0, 0, 1, 1, 0, 1, 0, 1, 1, 1, 1}; {1, 0, 0, 1, 1, 1, 1, 1, 0, 1, 0, 1};

[0385] {1,0,0,0,0,1,1,0,1,1,1,0}; {1,0,0,1,1,1,1,0,1,0,0,0}; {1,1,0,0,1,0,1,1,1,1,0,1}; {1,1,0,0,0,0,0,1,1,0,1,0}; {1,1,0,1,0,0,1,1,1,0,1,1}; {1,0,0,0,0,1,0,0,1,0,1,1}; {1,0,0,0,0,1,0,1,1,0,1,1}; {1,0,0,0,0,1,1,1,0,1,1,0}; {1,0,0,0,0,1,1,1,0,1,0,0}; {1,0,0,1,0,0,0,1,0,0,1,1}; {1,1,0,0,0,1,0,0,0,1,1,0}; {1,0,0,0,0,0,1,0,1,0,0,0}; {1,0,0,0,0,0,1,0,0,0,1,0}; {1,0,0,0,0,1,1,0,1,0,1,1}; {1,0,0,1,1,0,1,0,0,0,0,0}; {1,0,0,1,1,1,1,0,1,0,1,1}; {1,0,0,0,0,1,1,0,0,0,1,0}; {1,0,0,1,1,0,0,0,0,1,0,1}; {1,0,0,0,0,0,0,1,1,0,1,0}; {1,0,0,1,0,0,0,0,0,1,0,1}; {1,0,0,0,0,0,0,1,0,1,0,1}; {1,0,0,0,0,1,1,1,0,1,0,1}; {1,0,0,1,0,0,0,0,0,1,1,0}; {1,0,0,1,0,1,1,0,0,0,0,0}; {1,0,0,1,0,1,1,1,1,0,0,1}; {1,0,0,0,0,0,0,0,1,1,1,0}; {1,0,0,0,0,0,0,0,1,0,1,1}; {1,1,0,1,0,1,0,1,1,0,1,1}。

[0386] The sequence set 5 includes some or all of the following 30 sequences, and for these sequences and their equivalent sequences, the sequences {x n} corresponding to them after π / 2 BPSK modulation satisfy that when using time-domain filtering with a filtering coefficient of [0.28, 1, 0.28], the PAPR is less than 1.50 dB, and at the same time satisfy that the first maximum normalized power of the frequency-domain sequences corresponding to {x n} is less than 4 dB, the first minimum normalized power is greater than -4 dB, and at the same time the cross-correlation coefficient between the sequences corresponding to the said sequences {x n} is less than 0.84:

[0387] {1,0,0,1,1,0,1,0,1,1,1,1}; {1,0,0,1,0,1,1,1,0,1,1,1}

[0388] {1,0,0,0,0,1,0,0,0,1,0,1}; {1,0,0,0,0,1,0,0,1,1,1,0}; {1,0,0,0,0,1,0,1,1,1,0,0}; {1,0,0,1,1,1,1,1,0,1,0,1}; {1,0,0,0,0,1,1,0,1,1,1,0}; {1,0,0,1,1,1,1,0,1,0,0,0}; {1,1,0,0,0,0,0,1,1,0,1,0}; {1,0,0,0,0,1,0,0,1,0,1,1}; {1,0,0,0,0,1,0,1,1,0,1,1}; {1,0,0,1,0,0,0,1,0,0,1,1}; {1,1,0,0,0,1,0,0,0,1,1,0}; {1,0,0,0,0,0,1,0,1,0,0,0}; {1,0,0,0,0,0,1,0,0,0,1,0}; {1,0,0,0,0,1,1,0,1,0,1,1}; {1,0,0,1,1,0,1,0,0,0,0,0}; {1,0,0,1,1,1,1,0,1,0,1,1}; {1,0,0,0,0,1,1,0,0,0,1,0}; {1,0,0,1,1,0,0,0,0,1,0,1}; {1,0,0,0,0,0,0,1,1,0,1,0}; {1,0,0,1,0,0,0,0,0,1,0,1}; {1,0,0,0,0,0,0,1,0,1,0,1}; {1,0,0,0,0,1,1,1,0,1,0,1}; {1,0,0,1,0,0,0,0,0,1,1,0}; {1,0,0,1,0,1,1,0,0,0,0,0}; {1,0,0,1,0,1,1,1,1,0,0,1}; {1,0,0,0,0,0,0,0,1,1,1,0}; {1,0,0,0,0,0,0,0,1,0,1,1}; {1,1,0,1,0,1,0,1,1,0,1,1}

[0389] The sequence set 6 includes some or all of the following 30 sequences, and the sequences corresponding to these sequences and their equivalent sequences after π / 2 BPSK modulation are {x n} When using time-domain filtering and the filter coefficients are [0.1, 1, 0.1], the PAPR is less than 3.17 dB; when the filter coefficients are [0.16, 1, 0.16], the PAPR is less than 2.58 dB; when the filter coefficients are [0.22, 1, 0.22], the PAPR is less than 1.94 dB; when the filter coefficients are [0.28, 1, 0.28], the PAPR is less than 1.39 dB, and at the same time satisfy {x n} The first maximum normalized power of the corresponding frequency-domain sequence is less than 1.5 dB, and the first minimum normalized power is greater than -1.5 dB, that is, the corresponding sequence {x n} has good frequency-domain flatness. At the same time, the cross-correlation coefficient between the sequences corresponding to the sequence {x n} is less than 0.66:

[0390] {1, 0, 0, 1, 1, 1, 1, 1, 1, 0, 1, 0, 0, 1, 1, 0, 0, 0, 0, 1, 0, 1, 0, 1};

[0391] {1, 0, 0, 1, 0, 0, 0, 0, 0, 1, 1, 1, 0, 1, 1, 0, 1, 0, 1, 1, 1, 0, 0, 0};

[0392] {1, 0, 0, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 0, 0, 0, 1, 0, 0, 1, 1, 0, 1, 0};

[0393] {1, 1, 0, 0, 1, 0, 1, 0, 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 0, 0, 1, 1, 1, 1};

[0394] {1, 0, 0, 1, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 1, 1, 0, 1, 1, 1, 1, 0, 0, 0};

[0395] {1, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 1, 1, 0, 0, 0, 1, 0, 1, 1, 0, 1};

[0396] {1, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 1, 0, 1, 0, 0, 0, 1, 1, 1, 1, 0, 0};

[0397] {1, 0, 0, 1, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 1, 0, 1, 1, 1, 1, 0, 1, 0, 1};

[0398] {1,0,0,1,0,0,0,0,0,1,0,0,0,1,1,1,0,1,0,0,1,0,1,1}；{1,1,0,0,0,0,1,1,1,0,1,0,1,1,1,0,1,1,0,1,1,1,1,0}；{1,0,0,1,0,1,0,0,0,0,1,0,1,1,1,1,1,0,0,1,1,1,0,1}；{1,0,0,1,0,1,1,0,0,0,1,0,1,1,1,0,0,0,1,0,0,0,0,0}；{1,0,0,1,1,1,0,1,0,0,0,0,0,1,1,0,1,0,1,1,1,1,0,1}；{1,0,0,1,0,0,0,0,1,0,1,0,0,1,1,1,1,1,0,1,0,0,0,1}；{1,0,0,1,0,1,1,1,0,1,0,1,1,0,0,0,1,1,0,1,1,1,1,1}；{1,1,0,0,1,0,0,1,1,1,1,1,0,1,1,1,1,0,0,1,0,1,0,1}；{1,1,0,0,0,0,1,0,0,0,0,0,1,1,0,1,1,0,0,0,1,0,1,0}；{1,0,0,1,0,1,0,0,0,1,0,1,1,0,0,0,0,0,0,1,0,0,1,1}；{1,1,0,0,0,0,0,1,0,0,0,1,0,1,1,0,1,0,0,1,1,1,0,1}；{1,0,0,1,1,1,0,1,0,0,0,1,0,1,1,0,0,0,0,1,0,0,0,0}；{1,1,0,0,1,0,1,1,0,1,0,0,0,1,0,0,0,0,0,1,1,1,0,1}；{1,0,0,1,0,1,1,1,0,1,0,0,0,1,1,0,1,1,1,1,0,1,1,1}；{1,0,0,1,0,0,0,0,0,0,1,0,1,0,0,1,1,0,1,0,0,0,1,1}；{1,0,0,1,0,1,0,1,1,1,1,0,1,1,1,1,0,0,0,0,1,1,0,1}；{1,0,0,1,1,0,1,0,1,1,1,1,1,1,0,1,1,0,0,0,1,1,1,0}；{1,0,0,1,0,0,0,0,0,1,1,1,0,1,0,1,1,0,1,0,0,0,0,1}；{1,0,0,0,0,1,0,1,0,0,0,1,0,0,1,1,1,1,0,1,1,0,1,1}；{1,0,0,1,0,0,1,0,1,1,1,0,0,1,1,1,1,1,1,0,0,0,1,0}；{1,0,0,1,1,0,1,1,1,1,0,0,0,1,1,1,1,1,0,1,1,0,1,0}; {1,1,0,0,0,1,0,1,1,1,1,0,0,1,1,0,1,0,1,1,1,1,1,0}.;

[0399] The sequences in the sequence set 7 include some or all of the following 30 sequences, and the sequences {x n} corresponding to these sequences and their equivalent sequences after π / 2 BPSK modulation satisfy that when using time-domain filtering with a filtering coefficient of [0.28, 1, 0.28], the PAPR is less than 1.39 dB, and at the same time, the first maximum normalized power of the frequency-domain sequence corresponding to {x n} is less than 1.5 dB, and the first minimum normalized power is greater than -1.5 dB, that is, the frequency-domain flatness of the corresponding sequence {x n} is relatively good, and at the same time, the cross-correlation coefficient between the sequences {x n} corresponding to the said sequences is less than 0.6:

[0400] {1,0,0,1,1,1,1,1,1,0,1,0,0,1,1,0,0,0,0,1,0,1,0,1}；{1,0,0,1,0,0,0,0,0,1,1,1,0,1,1,0,1,0,1,1,1,0,0,0}；{1,0,0,1,1,1,1,1,0,1,1,1,1,0,0,0,1,0,0,1,1,0,1,0}；{1,1,0,0,1,0,1,0,0,0,1,0,1,1,0,1,1,1,0,0,1,1,1,1}；{1,0,0,1,0,0,0,1,0,1,0,0,0,0,1,1,0,1,1,1,1,0,0,0}；{1,1,0,0,0,1,0,0,0,0,0,1,0,1,1,0,0,0,1,0,1,1,0,1}；{1,0,0,1,0,0,0,1,0,0,0,0,0,1,1,0,1,0,1,0,0,1,1,1}；{1,1,0,0,0,0,0,0,1,1,0,1,0,0,1,1,1,0,1,1,1,0,1,0}；{1,0,0,0,0,1,0,0,1,0,0,0,1,0,1,0,0,0,1,1,1,1,0,0}；{1,0,0,1,0,0,0,1,1,0,0,0,0,0,1,0,1,1,1,1,0,1,0,1}；{1,1,0,0,0,0,1,1,1,0,1,0,1,1,1,0,1,1,0,1,1,1,1,0}；{1,0,0,1,0,1,0,0,0,0,1,0,1,1,1,1,1,0,0,1,1,1,0,1}；{1,1,0,0,1,0,0,1,0,1,0,1,1,1,0,1,1,1,1,0,0,1,1,1}；{1,0,0,1,0,0,0,0,1,0,1,0,0,1,1,1,1,1,0,1,0,0,0,1}；{1,1,0,0,1,0,0,1,1,1,1,1,0,1,1,1,1,0,0,1,0,1,0,1}；{1,0,0,1,0,1,0,0,0,1,0,1,1,0,0,0,0,0,0,1,0,0,1,1}；{1,0,0,1,0,1,0,0,0,1,0,0,0,1,1,1,1,1,1,0,0,1,1,0}；{1,0,0,1,0,1,1,0,0,1,1,1,1,1,1,0,0,0,1,0,0,0,1,0}；{1,0,0,1,0,0,0,0,1,0,1,0,0,0,1,1,0,0,1,0,1,1,1,1}；{1,0,0,1,1,1,0,1,0,0,0,1,0,1,1,0,0,0,0,1,0,0,0,0}；{1,0,0,1,0,1,1,1,0,1,0,0,0,1,1,0,1,1,1,1,0,1,1,1}; {1,0,0,1,1,1,0,1,1,1,0,0,0,0,0,1,0,0,0,1,0,1,1,0}; {1,0,0,1,0,0,0,1,0,0,1,0,1,0,1,1,1,1,1,0,0,1,1,1}; {1,0,0,1,1,1,0,1,0,0,1,1,1,1,0,1,1,1,0,1,0,0,0,0}; {1,0,0,1,0,1,0,1,1,1,1,0,1,1,1,1,0,0,0,0,1,1,0,1}; {1,0,0,1,1,0,1,0,1,1,1,1,1,1,0,1,1,0,0,0,1,1,1,0}; {1,0,0,1,0,0,0,0,0,1,1,1,0,1,0,1,1,0,1,0,0,0,0,1}; {1,1,0,1,0,0,0,0,0,1,0,0,0,1,1,0,1,0,0,0,1,1,1,0}; {1,0,0,1,0,0,1,0,1,1,1,0,0,1,1,1,1,1,1,0,0,0,1,0}; {1,0,0,1,0,1,1,1,1,1,1,1,0,0,0,1,1,0,1,0,1,0,0,1}.;

[0401] The sequences in the sequence set 11 include some or all of the following 62 sequences. The sequences and their equivalent sequences, after being modulated by π / 2 BPSK, the corresponding sequences {x n} satisfy that when using time-domain filtering with filter coefficients [0.1, 1, 0.1], the PAPR is less than 3.17 dB; when the filter coefficients are [0.16, 1, 0.16], the PAPR is less than 2.58 dB; when the filter coefficients are [0.22, 1, 0.22], the PAPR is less than 1.94 dB; when the filter coefficients are [0.28, 1, 0.28], the PAPR is less than 1.39 dB. At the same time, the first maximum normalized power of the corresponding frequency-domain sequences of {x n} is less than 1.5 dB, and the first minimum normalized power is greater than -1.5 dB, that is, the frequency-domain flatness of the corresponding sequences {x n} is relatively good. At the same time, the cross-correlation coefficient between the corresponding sequences {x n} is less than 0.69:

[0402] {1,0,0,1,1,1,1,1,1,0,1,0,0,1,1,0,0,0,0,1,0,1,0,1}；{1,0,0,1,0,0,0,1,1,1,1,1,0,1,1,0,1,1,1,0,0,0,1,0}；{1,0,0,1,0,0,0,0,0,1,1,1,0,1,1,0,1,0,1,1,1,0,0,0}；{1,0,0,1,0,1,0,1,1,1,1,0,0,1,1,0,1,0,0,0,0,0,0,1}；{1,0,0,1,1,1,1,1,0,1,1,1,1,0,0,0,1,0,0,1,1,0,1,0}；{1,1,0,0,1,0,1,0,0,0,1,0,1,1,0,1,1,1,0,0,1,1,1,1}；{1,0,0,1,1,0,1,1,1,0,0,0,0,1,0,0,0,0,0,1,1,0,1,0}；{1,1,0,0,1,1,1,0,1,1,0,1,0,0,0,1,0,1,0,0,1,1,1,1}；{1,0,0,1,0,0,0,1,0,1,0,0,0,0,1,1,0,1,1,1,1,0,0,0}；{1,1,0,0,0,1,0,0,0,0,0,1,0,1,1,0,0,0,1,0,1,1,0,1}；{1,1,0,0,0,1,0,0,1,0,1,1,1,0,0,1,0,1,1,1,1,1,0,1}；{1,1,0,0,0,0,0,0,0,1,0,1,0,1,1,0,0,1,1,0,1,0,0,1}；{1,1,0,0,1,0,1,1,0,0,1,1,0,1,0,1,0,0,0,0,0,0,0,1}；{1,0,0,1,0,0,1,0,1,0,1,0,0,0,0,0,0,1,1,0,0,1,1,1}；{1,0,0,0,0,1,0,1,0,0,0,1,0,0,1,0,0,0,1,1,1,1,0,1}；{1,0,0,1,0,0,1,1,1,1,0,0,1,1,0,0,0,0,0,0,1,0,1,0}；{1,0,0,0,0,1,0,0,1,0,0,0,1,0,1,0,0,0,1,1,1,1,0,0}；{1,0,0,1,0,0,0,1,1,0,0,0,0,0,1,0,1,1,1,1,0,1,0,1}；{1,0,0,1,0,1,0,0,0,0,1,0,0,0,1,1,1,1,1,0,1,0,0,1}；{1,0,0,1,0,1,1,1,1,1,0,0,0,1,0,0,0,0,1,0,1,0,0,1}；{1,0,0,1,0,1,1,0,1,1,1,1,1,0,1,1,1,0,0,0,1,0,1,1}；{1,1,0,0,0,0,1,1,1,0,1,0,1,1,1,0,1,1,0,1,1,1,1,0}；{1,0,0,1,0,1,0,0,0,0,1,0,1,1,1,1,1,0,0,1,1,1,0,1}；{1,0,0,1,0,1,1,0,0,0,1,0,1,1,1,0,0,0,1,0,0,0,0,0}；{1,0,0,1,1,1,0,1,0,0,0,0,0,1,1,0,1,0,1,1,1,1,0,1}；{1,0,0,1,0,0,0,0,1,0,1,0,0,1,1,1,1,1,0,1,0,0,0,1}；{1,0,0,1,0,1,1,1,0,1,0,1,1,0,0,0,1,1,0,1,1,1,1,1}；{1,1,0,0,1,0,0,1,1,1,1,1,0,1,1,1,1,0,0,1,0,1,0,1}；{1,1,0,0,0,0,1,0,0,0,0,0,1,1,0,1,1,0,0,0,1,0,1,0}；{1,0,0,1,0,1,0,0,0,1,0,1,1,0,0,0,0,0,0,1,0,0,1,1}；{1,1,0,0,0,0,0,1,0,0,0,1,0,1,1,0,1,0,0,1,1,1,0,1}；{1,0,0,1,0,0,0,0,1,0,1,0,0,0,1,1,0,0,1,0,1,1,1,1}；{1,0,0,1,1,1,0,1,0,0,0,1,0,1,1,0,0,0,0,1,0,0,0,0}；{1,1,0,0,1,0,1,1,0,1,0,0,0,1,0,0,0,0,0,1,1,1,0,1}；{1,0,0,1,0,1,1,1,0,1,0,0,0,1,1,0,1,1,1,1,0,1,1,1}；{1,0,0,1,1,0,0,0,1,0,1,0,0,0,0,1,0,0,1,1,1,1,1,0}；{1,1,0,0,0,1,0,1,1,1,1,1,0,1,1,0,0,1,1,1,1,0,1,0}；{1,0,0,1,0,0,0,1,0,0,1,1,1,1,0,0,0,0,1,0,0,0,1,0}；{1,1,0,0,1,1,0,1,1,1,1,1,0,1,0,0,0,1,1,0,1,0,1,1}；{1,0,0,1,0,0,0,1,0,0,1,0,1,0,0,0,1,0,0,0,0,1,1,1}；{1,1,0,0,1,0,1,0,0,0,0,0,0,1,1,1,0,1,1,1,0,0,1,0}；{1,0,0,1,0,0,0,1,0,0,1,0,1,0,1,1,1,1,1,0,0,1,1,1}；{1,1,0,0,0,1,0,0,0,1,1,1,1,1,1,0,1,0,1,1,0,0,1,0}；{1,0,0,1,0,0,0,1,0,0,1,1,1,1,0,0,1,1,1,1,1,0,1,0}；{1,0,0,1,0,0,0,0,0,0,1,0,1,0,0,1,1,0,1,0,0,0,1,1}；{1,0,0,1,0,1,0,1,1,1,1,0,1,1,1,1,0,0,0,0,1,1,0,1}；{1,1,0,0,0,1,0,1,0,1,1,1,1,1,0,0,1,1,1,1,0,1,1,0}；{1,0,0,1,0,1,1,0,0,0,1,1,0,0,0,0,0,0,1,0,1,1,1,0}；{1,0,0,1,1,0,1,0,1,1,1,1,1,1,0,1,1,0,0,0,1,1,1,0}；{1,1,0,0,1,1,1,1,1,0,1,0,1,0,0,0,1,1,0,1,1,0,1,1}；{1,0,0,1,0,0,1,1,1,1,0,0,0,0,1,0,0,0,0,1,0,1,0,1}；{1,0,0,1,0,1,1,1,0,1,0,0,0,0,0,0,1,1,0,0,0,1,1,0}；{1,0,0,0,0,1,1,1,0,1,1,0,1,1,1,1,0,0,1,0,0,0,1,0}；{1,1,0,1,0,0,1,0,0,0,1,1,1,0,1,0,0,1,1,1,0,1,1,1}；{1,0,0,0,0,1,0,1,0,0,0,1,0,0,1,1,1,1,0,1,1,0,1,1}；{1,1,0,1,0,0,0,0,0,1,0,0,0,1,1,0,1,0,0,0,1,1,1,0}；{1,0,0,1,0,0,1,0,1,1,1,0,0,1,1,1,1,1,1,0,0,0,1,0}；{1,0,0,1,1,0,1,1,1,1,0,0,0,1,1,1,1,1,0,1,1,0,1,0}；{1,0,0,1,0,0,0,0,0,1,1,1,0,0,0,0,1,0,0,1,1,0,1,0}；{1,1,0,0,0,0,0,0,1,1,0,0,0,1,0,1,1,0,1,1,0,1,0,1}；{1,0,0,1,0,0,0,1,0,0,1,1,1,1,0,1,0,1,1,1,0,0,0,0}; {1,0,0,1,0,0,0,0,1,1,1,0,1,0,1,1,1,1,0,0,1,0,0,0}。;

[0403] The sequences in the sequence set 9 include some or all of the following 56 sequences. The sequences and their equivalent sequences, after being modulated by π / 2 BPSK, correspond to the sequence {x n} that satisfies that when using time-domain filtering with the filtering coefficients [0.28, 1, 0.28], the PAPR is less than 1.49 dB, and at the same time, the first maximum normalized power of the frequency-domain sequence corresponding to {x n} is less than 1.5 dB, and the first minimum normalized power is greater than -1.5 dB, that is, the frequency-domain flatness of the corresponding sequence {x n} is relatively good. At the same time, the cross-correlation coefficient between the sequences corresponding to the sequence {x n} is less than 0.67:

[0404] {1,0,0,1,1,1,1,1,1,0,1,0,0,1,1,0,0,0,0,1,0,1,0,1}；{1,0,0,1,0,0,0,1,1,1,1,1,0,1,1,0,1,1,1,0,0,0,1,0}；{1,0,0,1,0,0,0,0,0,1,1,1,0,1,1,0,1,0,1,1,1,0,0,0}；{1,0,0,1,0,1,0,1,1,1,1,0,0,1,1,0,1,0,0,0,0,0,0,1}；{1,0,0,1,1,1,1,1,0,1,1,1,1,0,0,0,1,0,0,1,1,0,1,0}；{1,1,0,0,1,0,1,0,0,0,1,0,1,1,0,1,1,1,0,0,1,1,1,1}；{1,0,0,1,0,1,1,1,0,0,1,0,1,1,1,1,1,0,1,1,1,0,0,0}；{1,1,0,0,0,0,0,1,1,0,0,0,0,1,0,0,1,0,1,0,1,1,1,0}；{1,0,0,1,0,0,0,1,0,1,0,0,0,0,1,1,0,1,1,1,1,0,0,0}；{1,1,0,0,0,1,0,0,0,0,0,1,0,1,1,0,0,0,1,0,1,1,0,1}；{1,1,0,0,0,0,0,0,0,1,0,1,0,1,1,0,0,1,1,0,1,0,0,1}；{1,1,0,0,1,0,1,1,0,0,1,1,0,1,0,1,0,0,0,0,0,0,0,1}；{1,0,0,1,0,0,1,1,1,1,0,0,1,1,0,0,0,0,0,0,1,0,1,0}；{1,1,0,0,1,0,1,0,0,0,1,0,0,0,1,1,0,1,0,0,1,1,1,1}；{1,0,0,1,0,0,0,1,0,0,0,0,0,1,1,0,1,0,1,0,0,1,1,1}；{1,1,0,0,0,0,0,0,1,1,0,1,0,0,1,1,1,0,1,1,1,0,1,0}；{1,0,0,0,0,1,0,0,1,0,0,0,1,0,1,0,0,0,1,1,1,1,0,0}；{1,0,0,1,0,0,0,1,1,0,0,0,0,0,1,0,1,1,1,1,0,1,0,1}；{1,0,0,1,0,1,0,0,0,0,1,0,0,0,1,1,1,1,1,0,1,0,0,1}；{1,0,0,1,0,1,1,1,1,1,0,0,0,1,0,0,0,0,1,0,1,0,0,1}；{1,0,0,1,0,1,1,0,1,1,1,1,1,0,1,1,1,0,0,0,1,0,1,1}；{1,1,0,0,0,0,1,1,1,0,1,0,1,1,1,0,1,1,0,1,1,1,1,0}；{1,0,0,1,0,1,0,0,0,0,1,0,1,1,1,1,1,0,0,1,1,1,0,1}；{1,0,0,1,0,1,1,0,0,0,1,0,1,1,1,0,0,0,1,0,0,0,0,0}；{1,0,0,1,1,1,0,1,0,0,0,0,0,1,1,0,1,0,1,1,1,1,0,1}；{1,1,0,0,1,0,0,1,0,1,0,1,1,1,0,1,1,1,1,0,0,1,1,1}；{1,0,0,1,0,0,0,0,1,0,1,0,0,1,1,1,1,1,0,1,0,0,0,1}；{1,1,0,0,0,0,0,1,1,0,0,0,0,1,0,0,0,1,0,1,0,1,1,0}；{1,0,0,1,0,1,0,0,1,1,0,1,0,0,0,1,0,0,0,0,0,0,1,1}；{1,0,0,1,0,1,0,0,1,1,1,0,0,0,0,0,0,1,0,0,0,1,0,1}；{1,0,0,1,0,1,1,1,0,1,0,1,1,0,0,0,1,1,0,1,1,1,1,1}；{1,1,0,0,1,0,0,1,1,1,1,1,0,1,1,1,1,0,0,1,0,1,0,1}；{1,1,0,0,0,0,1,0,0,0,0,0,1,1,0,1,1,0,0,0,1,0,1,0}；{1,0,0,1,0,1,0,0,0,1,0,1,1,0,0,0,0,0,0,1,0,0,1,1}；{1,0,0,1,0,0,0,0,1,0,1,0,0,0,1,1,0,0,1,0,1,1,1,1}；{1,0,0,1,1,1,0,1,0,0,0,1,0,1,1,0,0,0,0,1,0,0,0,0}；{1,0,0,1,0,1,1,1,0,1,0,0,0,1,1,0,1,1,1,1,0,1,1,1}；{1,0,0,1,1,0,0,0,1,0,1,0,0,0,0,1,0,0,1,1,1,1,1,0}；{1,0,0,1,0,0,0,1,0,0,1,1,1,1,0,0,0,0,1,0,0,0,1,0}；

[0405] {1,1,0,0,0,0,1,1,0,1,1,1,0,1,1,0,1,0,1,1,1,0,1,1}；

[0406] {1,1,0,0,1,0,1,0,0,0,0,0,0,1,1,1,0,1,1,1,0,0,1,0}；

[0407] {1,0,0,1,0,0,0,1,0,0,1,0,1,0,1,1,1,1,1,0,0,1,1,1}；

[0408] {1,1,0,0,0,1,0,0,0,1,1,1,1,1,1,0,1,0,1,1,0,0,1,0}；

[0409] {1,0,0,1,0,0,0,1,0,0,1,1,1,1,0,0,1,1,1,1,1,0,1,0}；

[0410] {1,0,0,1,0,1,0,1,1,1,1,0,1,1,1,1,0,0,0,0,1,1,0,1}；

[0411] {1,1,0,0,0,1,0,1,0,1,1,1,1,1,0,0,1,1,1,1,0,1,1,0}；

[0412] {1,0,0,1,0,1,1,0,0,0,1,1,0,0,0,0,0,0,1,0,1,1,1,0}；

[0413] {1,1,0,0,1,1,1,1,1,0,1,0,1,0,0,0,1,1,0,1,1,0,1,1}；

[0414] {1,0,0,1,0,0,0,0,0,0,1,1,1,0,0,1,1,0,1,0,0,0,1,0}；

[0415] {1,0,0,1,0,0,0,0,0,1,1,1,0,1,0,1,1,0,1,0,0,0,0,1}；

[0416] {1,0,0,1,0,1,0,0,0,1,0,1,1,0,0,1,1,1,0,0,0,0,0,0}；

[0417] {1,0,0,1,0,1,0,0,0,1,1,1,1,1,0,1,1,0,0,1,1,1,1,0}；

[0418] {1,0,0,1,0,1,1,1,0,1,0,0,0,0,0,0,1,1,0,0,0,1,1,0};

[0419] {1,0,0,0,0,1,0,1,0,0,0,1,0,0,1,1,1,1,0,1,1,0,1,1};

[0420] {1,0,0,1,0,1,0,1,1,0,0,0,1,1,1,1,1,1,1,0,1,0,0,1};

[0421] {1,0,0,1,0,1,1,1,1,1,1,1,0,0,0,1,1,0,1,0,1,0,0,1}。

[0422] The sequences in the sequence set 10 include some or all of the following 30 sequences. The sequences and their equivalent sequences, after being modulated by π / 2 BPSK, the corresponding sequences {x n} satisfy that when using time-domain filtering with filter coefficients [0.1, 1, 0.1], the PAPR is less than 3.19 dB; when the filter coefficients are [0.16, 1, 0.16], the PAPR is less than 2.59 dB; when the filter coefficients are [0.22, 1, 0.22], the PAPR is less than 1.95 dB; when the filter coefficients are [0.28, 1, 0.28], the PAPR is less than 1.40 dB. At the same time, it satisfies that the first maximum normalized power of the frequency-domain sequence corresponding to {x n} is less than 1 dB, and the first minimum normalized power is greater than -1 dB, that is, the frequency-domain flatness of the corresponding sequence {x n} is relatively good. At the same time, the cross-correlation coefficient between the sequences corresponding to the sequences {x n} is less than 0.57:

[0423] {0,0,0,0,0,0,1,1,0,1,0,1,1,1,1,1,0,0,1,1,0,1,0,1,1,0,0,0,1,0,0,0,1,0,1,1}; {0,0,0,0,0,1,0,1,0,1,1,0,1,1,1,1,0,0,1,0,1,1,1,0,1,1,1,1,0,0,0,1,0,0,1,1};

[0424] {0,1,0,1,0,0,1,1,0,0,0,1,0,0,1,0,1,1,1,0,1,1,1,1,0,0,1,0,1,1,1,0,0,0,0,0};

[0425] {0,1,0,1,0,0,0,0,0,1,1,0,1,0,1,0,0,1,1,1,1,0,1,1,1,0,1,1,0,0,0,0,0,1,1,0}；

[0426] {0,1,0,0,0,0,1,0,1,1,1,0,1,0,0,1,1,1,1,0,1,0,1,1,0,0,0,0,0,1,0,0,1,1,0,0}；

[0427] {0,0,0,0,0,1,0,1,1,1,1,0,0,0,1,1,1,0,1,1,0,1,1,0,0,0,1,0,0,1,0,1,0,0,0,1}；

[0428] {0,0,0,1,0,1,1,1,1,0,1,1,1,1,0,0,1,0,1,1,1,1,1,0,0,1,0,1,0,0,0,1,1,0,0,1}；

[0429] {0,1,0,1,0,0,0,0,1,0,1,1,0,1,1,0,1,1,1,0,0,0,1,1,0,1,1,1,0,0,0,0,0,1,0,0}；

[0430] {0,0,0,0,0,0,1,0,0,0,1,0,1,0,1,1,0,1,1,0,0,0,0,0,1,1,0,0,1,0,1,0,0,1,1,1}；

[0431] {0,0,0,0,0,0,1,1,1,0,0,1,0,1,0,0,1,1,0,0,0,0,0,1,1,0,1,1,0,1,0,1,0,0,0,1}；

[0432] {0,0,0,0,0,1,0,0,0,1,0,0,1,0,1,1,1,1,0,0,0,1,0,0,0,1,0,1,0,0,1,0,0,1,1,1}；

[0433] {0,0,0,0,0,1,1,1,0,0,1,0,0,1,0,1,0,0,0,1,0,0,0,1,1,1,1,0,1,0,0,1,0,0,0,1}；

[0434] {0,0,0,0,1,0,1,1,0,1,0,1,0,0,0,1,0,0,1,1,1,1,0,0,1,1,1,1,1,0,1,1,1,0,1,1}；

[0435] {0,0,0,0,1,1,0,1,1,1,0,1,1,1,1,1,0,0,1,1,1,1,0,0,1,0,0,0,1,0,1,0,1,1,0,1}；

[0436] {0,0,0,0,1,1,1,1,0,0,1,1,0,1,0,1,1,1,0,1,1,0,0,1,1,1,1,1,1,0,1,0,1,0,0,1}；

[0437] {0,1,0,1,0,1,1,1,1,1,1,0,0,0,1,0,1,1,0,1,0,0,1,1,0,0,0,0,0,1,0,0,0,1,1,0}；

[0438] {0,0,0,0,1,0,0,1,0,1,0,1,1,1,1,1,1,0,0,1,1,0,1,1,1,0,1,0,1,1,0,0,1,1,1,1}；

[0439] {0,1,0,1,0,1,1,0,0,1,1,1,0,1,1,1,1,1,0,0,1,1,0,1,0,0,1,0,1,1,1,0,0,0,0,0}；

[0440] {0,0,0,0,0,0,0,0,1,0,1,1,0,0,0,1,1,0,1,0,1,1,0,0,1,1,0,1,0,0,0,1,1,1,0,1}；

[0441] {0,1,0,0,0,0,1,0,1,0,1,0,1,1,1,1,0,0,1,0,0,1,1,1,1,1,0,0,1,1,0,0,0,0,1,0}；

[0442] {0,1,0,1,0,1,1,0,1,1,0,1,1,1,1,1,1,0,1,0,0,0,1,1,1,1,0,0,1,1,1,0,0,1,0,0}；

[0443] {0,0,0,0,0,0,1,1,1,0,0,0,1,0,1,0,1,1,1,1,0,1,1,0,1,0,0,1,1,0,1,1,0,0,0,1}；

[0444] {0,1,0,1,0,1,1,1,0,1,1,0,0,0,1,1,0,0,0,0,1,1,1,0,1,0,0,0,0,0,0,1,0,0,1,0}；

[0445] {0,0,0,0,0,0,1,0,0,0,1,1,0,1,1,0,0,1,0,1,1,0,1,1,1,1,0,1,0,1,0,0,0,1,1,1};

[0446] {0,1,0,0,0,0,0,1,1,0,0,1,1,1,1,0,1,0,0,0,0,1,1,0,1,1,0,0,1,0,1,0,1,0,0,0};

[0447] {0,0,0,0,0,0,1,1,1,1,1,0,0,1,1,0,1,0,0,1,0,0,1,0,1,0,1,0,0,0,1,1,0,0,0,1};

[0448] {0,0,0,1,0,1,0,0,1,1,0,0,1,0,1,1,1,1,0,1,0,0,1,1,1,0,0,1,1,1,1,1,1,1,0,1};

[0449] {0,1,0,1,0,1,1,0,1,0,1,1,0,0,1,1,1,1,0,0,0,1,1,1,1,1,1,1,0,1,1,0,0,1,0,0};

[0450] {0,0,0,0,1,1,0,0,1,0,1,1,0,1,0,1,0,0,0,1,1,1,0,1,1,1,0,1,1,0,1,1,1,1,1,1};

[0451] {0,0,0,0,0,0,1,0,0,1,0,0,0,1,0,0,0,1,1,1,0,1,0,1,0,0,1,0,1,1,0,0,1,1,1,1};

[0452] The sequences in the sequence set 11 include some or all of the following 30 sequences. The sequences and their equivalent sequences, after being modulated by π / 2 BPSK, the corresponding sequences {x n} satisfy that when using time-domain filtering with the filtering coefficients [0.28, 1, 0.28], the PAPR is less than 1.40 dB. At the same time, the first maximum normalized power of the frequency-domain sequence corresponding to {x n} is less than 1 dB, and the first minimum normalized power is greater than -1 dB, that is, the frequency-domain flatness of the corresponding sequence {x n} is relatively good. At the same time, the cross-correlation coefficient between the sequences corresponding to the sequences {x n} is less than 0.557:

[0453] {0,0,0,0,0,0,1,1,0,1,0,1,1,1,1,1,0,0,1,1,0,1,0,1,1,0,0,0,1,0,0,0,1,0,1,1}；{0,0,0,0,0,1,0,1,0,1,1,0,1,1,1,1,0,0,1,0,1,1,1,0,1,1,1,1,0,0,0,1,0,0,1,1}；

[0454] {0,1,0,1,0,0,1,1,0,0,0,1,0,0,1,0,1,1,1,0,1,1,1,1,0,0,1,0,1,1,1,0,0,0,0,0}；

[0455] {0,1,0,1,0,0,0,0,0,1,1,0,1,0,1,0,0,1,1,1,1,0,1,1,1,0,1,1,0,0,0,0,0,1,1,0}；

[0456] {0,1,0,0,0,0,1,0,1,1,1,0,1,0,0,1,1,1,1,0,1,0,1,1,0,0,0,0,0,1,0,0,1,1,0,0}；

[0457] {0,0,0,0,0,1,0,1,1,1,1,0,0,0,1,1,1,0,1,1,0,1,1,0,0,0,1,0,0,1,0,1,0,0,0,1}；

[0458] {0,0,0,1,0,1,1,1,1,0,1,1,1,1,0,0,1,0,1,1,1,1,1,0,0,1,0,1,0,0,0,1,1,0,0,1}；

[0459] {0,0,0,1,1,1,0,0,1,0,0,0,1,1,1,1,1,0,1,1,1,0,1,0,1,1,1,1,0,1,0,0,1,0,0,1}；

[0460] {0,0,0,0,0,1,0,0,0,1,0,0,1,0,0,1,1,1,0,0,0,1,0,0,0,1,0,1,0,0,1,0,1,1,1,1}；

[0461] {0,0,0,0,1,0,1,1,0,1,0,1,1,1,0,1,1,1,0,0,0,1,1,0,1,1,0,1,1,1,0,1,1,1,1,1}；

[0462] {0,0,0,0,0,0,1,0,0,0,1,0,1,0,1,1,0,1,1,0,0,0,0,0,1,1,0,0,1,0,1,0,0,1,1,1}；

[0463] {0,0,0,0,0,0,1,1,1,0,0,1,0,1,0,0,1,1,0,0,0,0,0,1,1,0,1,1,0,1,0,1,0,0,0,1}；

[0464] {0,0,0,0,1,0,0,0,1,1,1,0,1,1,0,1,0,1,1,1,1,1,0,0,0,1,0,0,1,0,0,0,1,0,1,1}；

[0465] {0,0,0,0,1,0,1,1,0,1,0,1,0,0,0,1,0,0,1,1,1,1,0,0,1,1,1,1,1,0,1,1,1,0,1,1}；

[0466] {0,0,0,0,1,1,0,1,1,1,0,1,1,1,1,1,0,0,1,1,1,1,0,0,1,0,0,0,1,0,1,0,1,1,0,1}；

[0467] {0,0,0,0,0,0,0,1,1,0,0,1,0,1,0,1,0,0,1,0,0,1,1,1,1,0,1,1,1,0,1,0,0,1,1,1}；

[0468] {0,0,0,0,0,0,0,1,1,1,0,0,1,0,1,1,1,0,1,1,1,1,0,0,1,0,0,1,0,1,0,1,0,0,1,1}；

[0469] {0,0,0,0,0,1,0,1,0,0,1,0,0,0,1,1,1,0,1,1,1,1,0,0,1,0,1,1,1,0,1,1,0,1,1,1}；

[0470] {0,0,0,0,1,1,1,1,0,0,1,1,0,1,0,1,1,1,0,1,1,0,0,1,1,1,1,1,1,0,1,0,1,0,0,1}；

[0471] {0,1,0,1,0,1,1,1,1,1,1,0,0,0,1,0,1,1,0,1,0,0,1,1,0,0,0,0,0,1,0,0,0,1,1,0}；

[0472] {0,0,0,1,0,1,0,1,1,0,1,1,0,1,1,1,1,1,1,0,1,0,0,0,1,1,1,1,0,0,1,1,1,0,0,1};

[0473] {0,0,0,0,0,0,1,1,1,0,0,0,1,0,1,0,1,1,1,1,0,1,1,0,1,0,0,1,1,0,1,1,0,0,0,1};

[0474] {0,0,0,1,0,0,1,1,1,0,0,1,1,1,1,0,0,0,1,0,1,1,1,1,1,1,0,1,1,0,1,1,0,1,0,1};

[0475] {0,0,0,0,0,0,1,0,0,0,1,1,0,1,1,0,0,1,0,1,1,0,1,1,1,1,0,1,0,1,0,0,0,1,1,1};

[0476] {0,0,0,0,1,0,0,1,1,1,1,1,0,1,1,0,1,0,1,1,0,1,1,1,0,1,1,1,0,1,0,0,0,1,1,1}; {0,1,0,1,0,0,0,1,1,1,1,1,0,0,0,1,0,0,0,1,0,0,0,0,1,0,0,1,0,0,1,0,1,1,1,0}; {0,1,0,0,0,0,0,1,1,0,0,1,1,1,1,0,1,0,0,0,0,1,1,0,1,1,0,0,1,0,1,0,1,0,0,0}; {0,0,0,0,0,0,1,1,0,0,0,1,0,1,1,1,0,1,1,1,0,0,0,0,1,0,0,1,1,0,1,0,0,1,0,1}; {0,0,0,1,0,0,0,1,0,1,1,1,0,0,1,1,1,1,1,1,0,1,0,1,1,0,1,0,0,1,1,0,1,1,1,1}; {0,0,0,1,0,0,0,1,1,1,1,1,1,0,1,1,0,1,0,1,1,1,1,0,0,0,1,1,0,1,1,0,0,1,0,1}.

[0477] The sequences in the sequence set 12 include some or all of the following 59 sequences, and the sequences corresponding to these sequences and their equivalent sequences after π / 2 BPSK modulation are {x n}When using time-domain filtering and the filter coefficients are [0.1, 1, 0.1], the PAPR is less than 3.19 dB; when the filter coefficients are [0.16, 1, 0.16], the PAPR is less than 2.59 dB; when the filter coefficients are [0.22, 1, 0.22], the PAPR is less than 1.95 dB; when the filter coefficients are [0.28, 1, 0.28], the PAPR is less than 1.40 dB, and at the same time satisfying {x n}The first maximum normalized power of the corresponding frequency-domain sequence is less than 1 dB, and the first minimum normalized power is greater than -1 dB, that is, the corresponding sequence {x n}has good frequency-domain flatness, and at the same time the cross-correlation coefficient between the sequences corresponding to the sequence {x n}is less than 0.7:

[0478] {0,0,0,0,0,0,1,1,0,1,0,1,1,1,1,1,0,0,1,1,0,1,0,1,1,0,0,0,1,0,0,01,0,1,1}；{0,0,0,0,0,1,0,1,0,1,1,0,1,1,1,1,0,0,1,0,1,1,1,0,1,1,1,1,0,0,0,10,0,1,1}；{0,1,0,1,0,0,0,0,0,0,1,1,1,0,1,0,0,1,1,1,1,0,1,1,1,0,1,0,0,1,0,00,1,1,0}；{0,1,0,1,0,0,1,1,0,0,0,1,0,0,1,0,1,1,1,0,1,1,1,1,0,0,1,0,1,1,1,00,0,0,0}；{0,0,0,0,1,0,0,0,0,1,0,1,1,1,0,1,0,0,1,1,1,0,1,1,0,0,0,0,1,0,0,01,0,1,1}；{0,1,0,0,0,0,1,0,1,1,1,0,1,0,0,1,1,1,1,0,1,0,1,1,0,0,0,0,0,1,0,01,1,0,0}；{0,0,0,0,0,1,0,1,1,1,1,0,0,0,1,1,1,0,1,1,0,1,1,0,0,0,1,0,0,1,0,10,0,0,1}；{0,0,0,1,0,1,1,1,1,0,1,1,1,1,0,0,1,0,1,1,1,1,1,0,0,1,0,1,0,0,0,11,0,0,1}；{0,1,0,1,0,0,0,0,1,0,1,1,0,1,1,0,1,1,1,0,0,0,1,1,0,1,1,1,0,0,0,00,1,0,0}；{0,0,0,0,0,0,1,0,0,0,1,0,1,0,1,1,0,1,1,0,0,0,0,0,1,1,0,0,1,0,1,00,1,1,1}；{0,0,0,0,0,0,1,1,1,0,0,1,0,1,0,0,1,1,0,0,0,0,0,1,1,0,1,1,0,1,0,10,0,0,1}；{0,0,0,0,0,1,0,0,0,1,0,0,1,0,1,1,1,1,0,0,0,1,0,0,0,1,0,1,0,0,1,00,1,1,1}；{0,0,0,0,0,1,1,1,0,0,1,0,0,1,0,1,0,0,0,1,0,0,0,1,1,1,1,0,1,0,0,10,0,0,1}；{0,0,0,0,1,0,1,1,0,1,0,1,0,0,0,1,0,0,1,1,1,1,0,0,1,1,1,1,1,0,1,11,0,1,1}；{0,0,0,0,1,1,0,1,1,1,0,1,1,1,1,1,0,0,1,1,1,1,0,0,1,0,0,0,1,0,1,01,1,0,1}；{0,1,0,1,1,1,1,0,0,0,0,0,0,1,0,0,0,1,1,0,1,0,0,1,1,0,1,0,1,1,1,01,1,1,0}；{0,1,0,1,0,0,1,1,0,1,0,0,1,1,1,0,1,1,1,1,1,1,0,0,0,0,1,0,1,1,0,00,1,0,0}；{0,0,0,0,1,1,1,1,0,0,1,1,0,1,0,1,1,1,0,1,1,0,0,1,1,1,1,1,1,0,1,01,0,0,1}；{0,1,0,1,0,1,1,1,1,1,1,0,0,0,1,0,1,1,0,1,0,0,1,1,0,0,0,0,0,1,0,00,1,1,0}；{0,0,0,0,1,0,0,1,0,1,0,1,1,1,1,1,1,0,0,1,1,0,1,1,1,0,1,0,1,1,0,01,1,1,1}；{0,1,0,1,0,1,1,0,0,1,1,1,0,1,1,1,1,1,0,0,1,1,0,1,0,0,1,0,1,1,1,00,0,0,0}；{0,0,0,0,0,0,0,0,1,0,1,1,0,0,0,1,1,0,1,0,1,1,0,0,1,1,0,1,0,0,0,11,1,0,1}；{0,0,0,1,1,1,0,1,0,0,1,1,0,0,1,0,1,0,0,1,1,1,0,0,1,0,1,1,1,1,1,11,1,0,1}；{0,1,0,0,0,0,1,0,1,0,1,0,1,1,1,1,0,0,1,0,0,1,1,1,1,1,0,0,1,1,0,00,0,1,0}；{0,1,0,0,1,0,0,0,0,1,1,0,0,1,1,1,1,1,0,0,1,0,0,1,1,1,1,0,1,0,1,01,0,0,0}；{0,1,0,1,0,1,1,0,1,1,0,1,1,1,1,1,1,0,1,0,0,0,1,1,1,1,0,0,1,1,1,00,1,0,0}；{0,0,0,0,0,0,1,1,1,0,0,0,1,0,1,0,1,1,1,1,0,1,1,0,1,0,0,1,1,0,1,10,0,0,1}；{0,1,0,1,0,1,1,1,0,1,1,0,0,0,1,1,0,0,0,0,1,1,1,0,1,0,0,0,0,0,0,10,0,1,0}；{0,0,0,0,0,0,1,0,0,0,1,1,0,1,1,0,0,1,0,1,1,0,1,1,1,1,0,1,0,1,0,00,1,1,1}；{0,1,0,0,0,0,0,1,1,0,0,1,1,1,1,0,1,0,0,0,0,1,1,0,1,1,0,0,1,0,1,01,0,0,0}；{0,0,0,0,0,0,0,0,1,0,1,1,1,0,0,0,1,0,1,1,0,0,0,1,1,0,1,0,1,1,0,01,1,0,1}；{0,0,0,0,0,0,1,1,1,1,1,0,0,1,1,0,1,0,0,1,0,0,1,0,1,0,1,0,0,0,1,10,0,0,1}；{0,0,0,1,0,1,0,0,1,1,0,0,1,0,1,1,1,1,0,1,0,0,1,1,1,0,0,1,1,1,1,11,1,0,1}；{0,1,0,1,0,1,1,0,1,0,1,1,0,0,1,1,1,1,0,0,0,1,1,1,1,1,1,1,0,1,1,00,1,0,0}；{0,0,0,0,0,0,0,0,1,0,1,1,0,0,1,1,0,1,0,1,1,0,0,0,1,1,0,1,0,0,0,11,1,0,1}；{0,0,0,0,1,1,0,0,1,0,1,1,0,1,0,1,0,0,0,1,1,1,0,1,1,1,0,1,1,0,1,11,1,1,1}；{0,1,0,1,0,1,0,1,1,1,1,0,1,1,0,1,1,1,1,0,0,1,0,0,1,1,1,1,1,0,0,11,0,0,0}；{0,0,0,0,0,0,0,1,1,0,0,0,1,1,0,1,0,0,0,0,1,0,1,1,0,0,1,1,0,1,0,11,1,0,1}；{0,0,0,0,0,0,1,0,0,1,0,0,0,1,0,0,0,1,1,1,0,1,0,1,0,0,1,0,1,1,0,01,1,1,1}；{0,1,0,0,0,0,1,0,1,0,1,0,0,1,1,0,1,1,0,0,0,0,1,0,1,1,1,1,0,0,1,10,0,0,0}；{0,0,0,0,0,0,1,0,0,0,1,1,0,0,0,1,0,1,0,1,0,0,1,0,0,1,0,1,1,0,0,11,1,1,1}；{0,1,0,0,0,0,1,0,1,0,1,0,1,1,1,1,0,0,1,1,0,0,0,0,0,1,1,0,1,1,0,00,0,1,0}；{0,1,0,1,0,0,1,0,1,0,1,1,1,0,1,1,0,0,1,0,0,0,0,0,0,0,1,1,1,0,0,00,1,1,0}；{0,1,0,1,1,0,1,0,0,0,1,1,0,0,0,0,1,1,1,0,1,0,1,0,0,1,1,0,0,1,0,00,0,0,0}；{0,0,0,0,1,0,1,0,1,0,0,0,1,1,0,0,1,1,1,1,1,1,0,1,1,0,1,0,0,1,1,01,1,1,1}；{0,0,0,0,1,1,1,1,0,1,1,0,0,1,0,1,1,0,1,1,1,1,1,1,0,0,1,1,0,0,0,10,1,0,1}；{0,1,0,1,1,1,1,1,1,1,0,1,1,0,0,1,1,0,1,0,1,0,0,0,1,1,1,1,0,0,1,11,0,1,0}；{0,0,0,1,0,0,0,1,1,1,1,1,1,0,1,1,0,1,0,1,1,1,1,0,0,0,1,1,0,1,1,00,1,0,1}；{0,1,0,0,0,1,0,0,1,0,1,0,1,1,1,0,0,0,0,0,1,0,1,1,0,1,1,0,0,0,1,10,0,0,0}；{0,1,0,0,0,1,0,0,0,0,0,1,1,0,0,0,1,1,0,1,1,0,1,0,0,0,0,0,1,1,1,01,0,1,0}；{0,0,0,1,0,0,0,1,0,1,0,0,1,1,0,1,1,0,0,0,1,1,1,1,0,1,0,1,1,0,1,11,1,1,1}；{0,0,0,0,0,0,1,0,1,0,1,0,0,1,1,0,0,0,0,1,1,0,1,1,1,0,0,1,0,1,1,11,0,0,1}；{0,1,0,1,0,1,1,1,1,1,1,1,0,0,1,1,0,1,0,0,1,1,1,0,1,1,0,0,0,0,1,01,1,0,0}; {0,0,0,0,0,0,1,0,0,1,1,1,1,0,1,0,0,1,1,1,0,1,1,0,0,0,0,1,1,0,0,10,1,0,1}; {0,1,0,1,0,1,1,1,0,0,1,0,1,1,1,1,0,0,1,0,0,0,1,1,0,1,0,0,1,1,0,00,0,0,0}; {0,0,0,0,0,1,0,1,1,1,1,1,0,0,1,1,1,1,0,0,1,0,1,0,1,0,0,1,0,0,0,11,0,0,1}; {0,0,0,0,0,1,0,0,1,1,0,0,0,1,0,0,1,0,1,0,1,0,0,1,1,1,1,0,0,1,1,11,1,0,1}; {0,1,0,1,0,0,0,0,1,0,1,0,0,1,1,0,1,0,0,1,1,1,1,1,1,1,0,0,0,1,0,01,1,0,0}; {0,1,0,1,0,0,0,0,1,0,1,0,0,0,1,1,0,0,1,0,0,0,1,1,1,1,1,1,1,0,0,10,1,1,0}.;

[0479] The sequences in the sequence set 13 include some or all of the following 60 sequences. The sequences and their equivalent sequences, after being modulated by π / 2 BPSK, the corresponding sequences {x n} satisfy that when using time-domain filtering with the filtering coefficients [0.28, 1, 0.28], the PAPR is less than 1.40 dB. At the same time, the first maximum normalized power of the frequency-domain sequence corresponding to {x n} is less than 1 dB, and the first minimum normalized power is greater than -1 dB, that is, the frequency-domain flatness of the corresponding sequence {x n} is relatively good. At the same time, the cross-correlation coefficient between the sequences corresponding to the said sequences {x n} is less than 0.65:

[0480] {0,0,0,0,0,0,1,1,0,1,0,1,1,1,1,1,0,0,1,1,0,1,0,1,1,0,0,0,1,0,0,01,0,1,1}；{0,0,0,0,0,1,0,1,0,1,1,0,1,1,1,1,0,0,1,0,1,1,1,0,1,1,1,1,0,0,0,10,0,1,1}；{0,1,0,1,0,0,1,1,0,0,0,1,0,0,1,0,1,1,1,0,1,1,1,1,0,0,1,0,1,1,1,00,0,0,0}；{0,1,0,1,0,0,0,0,0,1,1,0,1,0,1,0,0,1,1,1,1,0,1,1,1,0,1,1,0,0,0,00,1,1,0}；{0,1,0,0,0,0,1,0,1,1,1,0,1,0,0,1,1,1,1,0,1,0,1,1,0,0,0,0,0,1,0,01,1,0,0}；{0,0,0,0,0,1,0,1,1,1,1,0,0,0,1,1,1,0,1,1,0,1,1,0,0,0,1,0,0,1,0,10,0,0,1}；{0,0,0,1,0,1,1,1,1,0,1,1,1,1,0,0,1,0,1,1,1,1,1,0,0,1,0,1,0,0,0,11,0,0,1}；{0,0,0,1,1,1,0,0,1,0,0,0,1,1,1,1,1,0,1,1,1,0,1,0,1,1,1,1,0,1,0,01,0,0,1}；{0,0,0,0,0,1,0,0,0,1,0,0,1,0,0,1,1,1,0,0,0,1,0,0,0,1,0,1,0,0,1,01,1,1,1}；{0,0,0,0,1,0,1,1,0,1,0,1,1,1,0,1,1,1,0,0,0,1,1,0,1,1,0,1,1,1,0,11,1,1,1}；{0,0,0,0,0,0,1,0,0,0,1,0,1,0,1,1,0,1,1,0,0,0,0,0,1,1,0,0,1,0,1,00,1,1,1}；{0,0,0,0,0,0,1,1,1,0,0,1,0,1,0,0,1,1,0,0,0,0,0,1,1,0,1,1,0,1,0,10,0,0,1}；{0,0,0,0,1,0,0,0,1,1,1,0,1,1,0,1,0,1,1,1,1,1,0,0,0,1,0,0,1,0,0,01,0,1,1}；{0,0,0,0,1,0,1,1,0,1,0,1,0,0,0,1,0,0,1,1,1,1,0,0,1,1,1,1,1,0,1,11,0,1,1}；{0,0,0,0,1,1,0,1,1,1,0,1,1,1,1,1,0,0,1,1,1,1,0,0,1,0,0,0,1,0,1,01,1,0,1}；{0,0,0,0,0,0,0,1,1,0,0,1,0,1,0,1,0,0,1,0,0,1,1,1,1,0,1,1,1,0,1,00,1,1,1}；{0,1,0,1,1,1,1,0,0,0,0,0,0,1,0,0,0,1,1,0,1,0,0,1,1,0,1,0,1,1,1,01,1,1,0}；{0,1,0,1,0,0,1,1,0,1,0,0,1,1,1,0,1,1,1,1,1,1,0,0,0,0,1,0,1,1,0,00,1,0,0}；{0,0,0,0,0,0,0,1,1,1,0,0,1,0,1,1,1,0,1,1,1,1,0,0,1,0,0,1,0,1,0,10,0,1,1}；{0,0,0,0,0,1,0,1,0,0,1,0,0,0,1,1,1,0,1,1,1,1,0,0,1,0,1,1,1,0,1,10,1,1,1}；{0,0,0,0,0,1,0,1,1,1,1,0,1,0,1,1,1,0,0,0,1,1,1,0,1,1,0,0,0,1,0,01,0,0,1}；{0,0,0,0,0,1,0,0,1,0,0,1,0,0,0,1,1,0,1,1,1,0,0,0,1,1,1,0,1,0,1,11,1,0,1}；{0,0,0,0,1,1,1,1,0,0,1,1,0,1,0,1,1,1,0,1,1,0,0,1,1,1,1,1,1,0,1,01,0,0,1}；{0,1,0,1,0,1,1,1,1,1,1,0,0,0,1,0,1,1,0,1,0,0,1,1,0,0,0,0,0,1,0,00,1,1,0}；{0,0,0,0,1,0,0,1,0,1,0,1,1,1,1,1,1,0,0,1,1,0,1,1,1,0,1,0,1,1,0,01,1,1,1}；{0,1,0,1,0,1,1,0,0,1,1,1,0,1,1,1,1,1,0,0,1,1,0,1,0,0,1,0,1,1,1,00,0,0,0}；{0,0,0,1,0,1,0,1,1,0,1,1,0,1,1,1,1,1,1,0,1,0,0,0,1,1,1,1,0,0,1,11,0,0,1}；{0,0,0,0,0,0,1,1,1,0,0,0,1,0,1,0,1,1,1,1,0,1,1,0,1,0,0,1,1,0,1,10,0,0,1}；{0,0,0,1,0,0,1,1,1,0,0,1,1,1,1,0,0,0,1,0,1,1,1,1,1,1,0,1,1,0,1,10,1,0,1}；{0,0,0,0,0,0,1,0,0,0,1,1,0,1,1,0,0,1,0,1,1,0,1,1,1,1,0,1,0,1,0,00,1,1,1}；{0,0,0,0,1,0,0,1,1,1,1,1,0,1,1,0,1,0,1,1,0,1,1,1,0,1,1,1,0,1,0,00,1,1,1}；{0,1,0,1,0,0,0,1,1,1,1,1,0,0,0,1,0,0,0,1,0,0,0,0,1,0,0,1,0,0,1,01,1,1,0}；{0,0,0,1,1,0,0,1,0,0,1,0,1,0,1,0,0,1,1,1,1,0,1,1,1,0,1,0,0,1,1,11,1,1,1}；{0,0,0,0,0,0,0,1,1,0,1,0,0,0,1,0,0,0,0,1,1,0,1,0,1,0,1,1,0,1,1,00,1,1,1}；{0,1,0,0,0,0,0,1,1,0,0,1,1,1,1,0,1,0,0,0,0,1,1,0,1,1,0,0,1,0,1,01,0,0,0}；{0,0,0,0,0,0,0,0,1,0,1,1,1,0,0,0,1,0,1,1,0,0,0,1,1,0,1,0,1,1,0,01,1,0,1}；{0,0,0,0,0,0,1,1,1,1,1,0,0,1,1,0,1,0,0,1,0,0,1,0,1,0,1,0,0,0,1,10,0,0,1}；{0,0,0,1,0,1,0,0,1,1,0,0,1,0,1,1,1,1,0,1,0,0,1,1,1,0,0,1,1,1,1,11,1,0,1}；{0,1,0,1,0,1,1,0,1,0,1,1,0,0,1,1,1,1,0,0,0,1,1,1,1,1,1,1,0,1,1,00,1,0,0}；{0,1,0,1,0,1,0,1,1,1,1,0,1,1,0,1,1,1,1,0,0,1,0,0,1,1,1,1,1,0,0,11,0,0,0}；{0,0,0,0,1,1,0,1,0,0,1,1,1,0,1,1,0,1,1,1,1,1,1,0,1,0,1,0,0,0,1,11,0,1,1}；{0,0,0,0,0,0,1,0,0,1,0,0,0,1,1,0,1,0,0,1,1,1,1,0,0,1,0,0,0,1,1,10,1,0,1}；{0,0,0,1,0,0,0,1,0,1,1,1,0,0,1,1,1,1,1,1,0,1,0,1,1,0,1,0,0,1,1,01,1,1,1}；{0,1,0,0,0,1,0,0,0,0,1,0,0,1,1,0,1,0,1,0,0,0,0,0,1,1,1,1,0,0,1,11,0,1,0}；{0,0,0,0,0,0,0,0,1,1,1,0,1,0,0,1,0,1,0,1,1,0,0,1,1,1,0,0,0,1,0,11,0,0,1}；{0,0,0,0,0,0,0,0,1,0,0,1,1,0,1,0,0,0,1,1,1,0,0,1,1,0,1,0,1,0,0,10,1,1,1}；{0,1,0,1,1,0,1,0,0,0,1,1,0,0,0,0,1,1,1,0,1,0,1,0,0,1,1,0,0,1,0,00,0,0,0}；{0,0,0,0,1,1,1,1,0,1,1,0,0,1,0,1,1,0,1,1,1,1,1,1,0,0,1,1,0,0,0,10,1,0,1}；{0,0,0,1,0,0,0,1,1,1,1,1,1,0,1,1,0,1,0,1,1,1,1,0,0,0,1,1,0,1,1,00,1,0,1}；{0,1,0,0,0,1,0,0,1,0,1,0,1,1,1,0,0,0,0,0,1,0,1,1,0,1,1,0,0,0,1,10,0,0,0}；{0,1,0,0,0,1,0,0,0,0,0,1,1,0,0,0,1,1,0,1,1,0,1,0,0,0,0,0,1,1,1,01,0,1,0}；{0,0,0,1,0,0,0,1,0,1,0,0,1,1,0,1,1,0,0,0,1,1,1,1,0,1,0,1,1,0,1,11,1,1,1}；{0,0,0,1,0,0,1,1,1,0,1,0,0,0,1,1,0,0,0,1,1,1,1,1,1,1,0,1,0,1,1,01,1,0,1}; {0,0,0,1,0,1,1,0,1,1,0,1,0,1,1,1,1,1,1,1,0,0,0,1,1,0,0,0,1,0,1,11,0,0,1}; {0,1,0,0,0,0,1,1,1,0,0,0,0,0,1,0,1,0,1,0,0,1,0,0,1,1,0,1,1,1,1,01,1,0,0}; {0,1,0,0,0,1,1,0,1,1,1,1,0,1,1,0,0,1,0,0,1,0,1,0,1,0,0,0,0,0,1,11,0,0,0}; {0,0,0,0,0,1,1,1,0,1,1,1,0,1,1,0,1,1,0,1,1,0,1,0,1,0,0,0,0,1,0,00,1,1,1}; {0,0,0,0,0,0,1,0,1,1,1,0,1,1,0,1,1,0,1,0,1,1,0,1,1,1,0,1,1,1,0,00,1,1,1}; {0,0,0,0,0,1,1,1,0,0,0,1,0,0,0,0,1,0,1,0,1,1,0,1,1,0,1,1,0,1,1,10,1,1,1}; {0,0,0,0,0,0,1,1,1,0,0,0,1,1,1,0,1,1,1,0,1,1,0,1,0,1,1,0,1,1,0,11,1,0,1}.;

[0481] And / or, when N = 18, the fourth sequence set is sequence set 18;

[0482] This sequence set 18 includes some or all of the following 30 sequences, and the sequences {x n} corresponding to these sequences after π / 2 BPSK modulation satisfy that when using time-domain filtering with filter coefficients [0.1, 1, 0.1], the PAPR is less than 2.89 dB, when the filter coefficients are [0.16, 1, 0.16], the PAPR is less than 2.35 dB, when the filter coefficients are [0.22, 1, 0.22], the PAPR is less than 1.76 dB, when the filter coefficients are [0.28, 1, 0.28], the PAPR is less than 1.27 dB, and at the same time, the second largest normalized power of the frequency-domain sequences corresponding to {x n} is less than 0.5 dB, the second smallest normalized power is greater than -0.5 dB, and at the same time, the cross-correlation coefficients between the sequences {x n} corresponding to these sequences after π / 2 BPSK modulation are less than 0.672:

[0483] {1,0,0,0,0,0,0,0,1,1,0,1,1,0,0,1,0,1}；{1,0,0,1,1,0,1,1,0,0,0,0,0,0,0,1,0,1}；

[0484] {1,1,0,0,1,1,1,1,0,0,0,1,0,1,0,0,1,0}；{1,0,0,1,1,1,0,1,1,0,1,0,1,1,1,0,0,0}；

[0485] {1,0,0,0,0,1,1,0,1,0,1,0,0,0,1,0,0,0}；{1,0,0,0,1,0,1,0,1,1,0,0,0,0,1,1,1,1}；

[0486] {1,0,1,1,0,1,1,1,1,0,1,0,0,0,0,0,1,0}；{1,0,1,1,1,1,1,0,1,0,0,0,0,1,0,0,1,0}；

[0487] {1,1,0,0,0,0,0,0,0,1,1,0,1,0,1,0,0,1}；{1,0,0,0,1,1,0,1,0,1,0,0,1,1,1,0,0,0}；

[0488] {1,0,0,1,1,0,0,0,1,0,1,0,0,1,0,0,0,0}；{1,0,0,0,0,0,1,0,1,0,0,0,1,1,1,0,1,0}；

[0489] {1,0,0,0,0,1,0,1,0,0,0,0,0,1,0,1,1,0}；{1,1,0,1,0,1,1,1,1,0,0,1,1,0,1,0,0,0}；

[0490] {1,0,0,1,0,1,1,1,0,1,1,1,1,1,0,1,1,0}；{1,1,0,1,0,0,1,1,0,0,1,0,0,0,0,0,1,0}；

[0491] {1,0,0,0,1,0,1,0,0,1,1,1,1,1,0,1,1,0}；{1,0,1,1,1,0,0,1,1,0,1,1,1,1,1,0,0,1}；

[0492] {1,0,0,0,0,1,1,1,0,0,1,0,1,1,0,1,1,1}; {1,0,0,0,0,0,0,1,0,1,1,1,1,0,1,0,0,0}

[0493] {1,1,0,0,0,1,0,1,1,1,1,1,1,0,1,0,0,0}; {1,0,1,1,0,1,0,1,1,1,1,0,0,1,0,0,0,0}

[0494] {1,0,0,0,0,0,1,0,1,1,1,0,1,0,1,1,1,0}; {1,1,0,0,1,1,1,0,1,0,1,1,1,0,1,0,0,0}

[0495] {1,0,0,1,0,1,0,0,0,0,0,0,1,1,1,0,1,0}; {1,0,0,0,1,1,1,1,1,1,0,1,0,1,1,0,0,1}

[0496] {1,1,1,0,0,1,1,1,1,0,1,0,1,1,0,1,0,0}; {1,0,0,1,0,1,1,0,1,0,0,0,0,1,0,0,0,0}

[0497] {1,1,1,0,1,0,1,0,0,1,0,0,0,0,1,1,1,1}; {1,0,0,0,0,1,1,1,1,0,1,1,0,1,0,1,0,0}

[0498] Generally speaking, for sequences with a relatively low PAPR, the CM value is also relatively small. The CM values of the above sequences have been verified to be very small.

[0499] Based on the sequence-based signal processing method disclosed in the embodiments of the present application above, the equivalent sequences of the sequences {s n} in each of the above-mentioned sequence sets can be represented by {q n}. The elements q n in the equivalent sequence {q n} satisfy: q n = s (n+M)modN . M ∈ {0, 1, 2,..., N - 1}. N is the sequence length.

[0500] Here, if an equivalent sequence of the sequence {s n} is {q n}, then the sequences {u·(1 - 2·s n )} and {u·(1 - 2·q n)} The difference is a constant, or a constant and a cyclic shift transformation. Determining whether the frequency domain of a time-domain sequence is flat can be processed through the process shown in Figure 7a or Figure 7b As shown, according to Figure 7a Shown in, the first maximum normalized power of the frequency-domain sequence corresponding to a time-domain sequence {x n} is defined as the maximum value after normalizing the sequence {f n *}, and the first minimum normalized power of the frequency-domain sequence corresponding to a time-domain sequence {x n} is defined as the minimum value after normalizing the sequence {f n *}. According to Figure 7b Shown in, the second maximum normalized power of the frequency-domain sequence corresponding to a time-domain sequence {x n} is defined as the maximum value after normalizing the sequence {f n **}, and the second minimum normalized power of the frequency-domain sequence corresponding to a time-domain sequence {x n} is defined as the minimum value after normalizing the sequence {f n **}.

[0501] A sequence-based signal processing method disclosed in an embodiment of the present application, by determining a sequence used for PUSCH transmission signals, the sequence is a sequence {x n} including N elements, x n is an element in the sequence {x n}, and the determined sequence {x n} is a sequence that meets the preset conditions, and then, a first signal is generated and transmitted. Using the above-determined sequence, better sequence frequency-domain flatness can be maintained when using PUSCH to transmit signals, while maintaining a lower PAPR value and a lower inter-sequence cross-correlation, so as to meet the communication application environment of using PUSCH to transmit signals. In particular, it meets the NR system or NR-like scenarios.

[0502] Based on the sequence-based signal processing method disclosed in the above embodiment of the present application, the embodiment of the present application also discloses a sequence-based signal processing device and a communication system.

[0503] As Figure 8 Shown in, it is a schematic structural diagram of a sequence-based signal processing device 800 disclosed in an embodiment of the present application. The signal processing device 800 can be a communication device or a chip in a communication device. The signal processing device 800 includes a processing unit 801 and a transceiver unit 802.

[0504] A processing unit 801, configured to determine a sequence {x n} including N elements, where N is a positive integer greater than 1, and x n is an element in the sequence {x n}, and the sequence {x n} is a sequence that meets a preset condition.

[0505] The preset condition involved in the processing unit 801 can refer to the preset condition disclosed in the sequence-based signal processing method disclosed in the above embodiments of the present application. The two are consistent, and will not be elaborated here.

[0506] The processing unit 801 is further configured to perform DFT processing on the N elements in the sequence {x n} to obtain a sequence {f n}; map the sequence {f n} to N subcarriers to generate a first signal.

[0507] A transceiver unit 802, configured to transmit the first signal.

[0508] The corresponding operations involved in the signal processing device 800 disclosed in the above embodiments of the present application can refer to the corresponding operations performed in the sequence-based signal processing method disclosed in the above embodiments of the present application. They will not be elaborated here.

[0509] Combined with the sequence-based signal processing method disclosed in the embodiments of the present application, the signal processing device disclosed in the embodiments of the present application can also be implemented directly by hardware, a memory executed by a processor, or a combination of the two.

[0510] As Figure 9 shown, the signal processing device 900 includes: a processor 901 and a transceiver 903. Optionally, the signal processing device 900 further includes a memory 902.

[0511] The processor 901 is coupled to the memory 902 through a bus. The processor 901 is coupled to the transceiver 903 through a bus.

[0512] The processor 901 may specifically be a central processing unit (CPU), a network processor (NP), an application-specific integrated circuit (ASIC), or a programmable logic device (PLD). The above PLD may be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), or a generic array logic (GAL).

[0513] The memory 902 may specifically be a content-addressable memory (CAM) or a random-access memory (RAM). The CAM may be a ternary content-addressable memory (TCAM).

[0514] When the signal processing device 900 is a communication device, the transceiver 903 may be a radio frequency circuit. When the signal processing device 900 is a chip within a terminal device, the transceiver 903 may be an input / output interface, a pin, or a circuit on the chip, etc.

[0515] The memory 902 may also be integrated in the processor 901. If the memory 902 and the processor 901 are independent devices, the memory 902 and the processor 901 are connected. For example, the memory 902 and the processor 901 may communicate via a bus. The transceiver 903 and the processor 901 may communicate via a bus, and the transceiver 903 may also be directly connected to the processor 901.

[0516] The memory 902 is used to store operation programs, codes, or instructions for sequence-based signal processing. Optionally, the memory 902 includes an operating system and application programs for storing operation programs, codes, or instructions for sequence-based signal processing.

[0517] When the processor 901 or a hardware device needs to perform operations related to sequence-based signal processing, calling and executing the operation programs, codes, or instructions stored in the memory 902 can complete Figures 1 - 6 the process of the terminal device involved in performing sequence-based signal processing. For the specific process, reference may be made to the corresponding parts of the embodiments of the present application above, which will not be elaborated here.

[0518] It can be understood thatFigure 9 Only a simplified design of the signal processing device 900 is shown. In practical applications, the signal processing device 900 may include any number of transceivers, processors, memories, etc., and all signal processing devices 900 that can implement the embodiments of the present application are within the protection scope of the embodiments of the present application.

[0519] As Figure 10 shown, it is a schematic structural diagram of the sequence-based signal processing device 1000 disclosed in the embodiments of the present application. The signal processing device 1000 may be a communication device or a chip within a communication device. The signal processing device 1000 includes a transceiver unit 1001 and a processing unit 1002.

[0520] The transceiver unit 1001 is configured to receive a first signal carried on N subcarriers.

[0521] The processing unit 1002 is configured to obtain N elements in the sequence {f n}, perform IDFT processing on the sequence {f n}, and obtain N elements in the sequence {x n}, where x n is an element in the sequence {x n}, and the sequence {x n} is a sequence that satisfies a preset condition.

[0522] The preset condition involved in the processing unit 1002 may refer to the preset condition disclosed in the sequence-based signal processing method disclosed in the above embodiments of the present application. The two are consistent, and will not be elaborated here.

[0523] The processing unit 1002 is further configured to process the first signal according to the N elements in the sequence {x n}.

[0524] The corresponding operations involved in the signal processing device 1000 disclosed in the above embodiments of the present application may refer to the corresponding operations performed in the sequence-based signal processing method disclosed in the above embodiments of the present application. The two are consistent, and will not be elaborated here.

[0525] Combined with the sequence-based signal processing method disclosed in the embodiments of the present application, the signal processing device disclosed in the embodiments of the present application may also be implemented directly by hardware, a memory executed by a processor, or a combination of the two.

[0526] As Figure 11 shown, the signal processing device 1100 includes: a processor 1101 and a transceiver 1103. Optionally, the signal processing device 1100 further includes a memory 1102.

[0527] The processor 1101 is coupled to the memory 1102 via a bus. The processor 1101 is coupled to the transceiver 1103 via a bus.

[0528] The processor 1101 may specifically be a CPU, NP, ASIC or PLD. The above PLD may be a CPLD, FPGA or GAL.

[0529] The memory 1102 may specifically be a CAM or RAM. The CAM may be a TCAM.

[0530] When the signal processing device 1100 is a communication device, the transceiver 1103 may be a radio frequency circuit. When the signal processing device 1100 is a chip within a terminal device, the transceiver 1103 may be an input / output interface, pin or circuit on the chip, etc.

[0531] The memory 1102 may also be integrated in the processor 1101. If the memory 1102 and the processor 1101 are independent devices, the memory 1102 and the processor 1101 are connected, for example, the memory 1102 and the processor 1101 may communicate via a bus. The transceiver 1103 and the processor 1101 may communicate via a bus, and the transceiver 1103 may also be directly connected to the processor 1101.

[0532] The memory 1102 is used to store operation programs, codes or instructions for sequence-based signal processing. Optionally, the memory 1102 includes an operating system and application programs, and is used to store operation programs, codes or instructions for sequence-based signal processing.

[0533] When the processor 1101 or a hardware device needs to perform operations related to sequence-based signal processing, calling and executing the operation programs, codes or instructions stored in the memory 1102 can be completed. Figure 1 - The process of the network device involved in FIG. 7 performing sequence-based signal processing. For the specific process, reference may be made to the corresponding parts of the embodiments of the present application above, and details are not described herein again.

[0534] It can be understood that Figure 11 Only a simplified design of the signal processing device 1100 is shown. In practical applications, the signal processing device 1100 may include any number of interfaces, processors, memories, etc., and all signal processing devices 1100 that can implement the embodiments of the present application are within the protection scope of the embodiments of the present application.

[0535] Figure 12 A communication system 1200 disclosed in an embodiment of the present application includes a first communication device 1201 and a second communication device 1202. Among them, the first communication device 1201 is a device on the sending side, and the second communication device 1202 is a device on the terminal side.

[0536] The first communication device 1201 is configured to determine a sequence {x n} including N elements, and perform DFT on the N elements in the sequence {x n} to obtain a sequence {f n}, then map the sequence {f n} onto N subcarriers to generate a first signal and send it to the second communication device 1202.

[0537] The second communication device 1202 is configured to receive the first signal on the N subcarriers sent by the first communication device 1201, obtain the N elements in the sequence {f n}, perform IDFT processing on the sequence {f n} to obtain the N elements in the sequence {x n}, and process the first signal according to the N elements in the sequence {x n}.

[0538] In the communication system disclosed in the embodiments of the present application above, the numbers of the first communication device 1201 and the second communication device 1202 are not limited. The first communication device 1201 may specifically be Figure 9 and Figure 10 the communication devices disclosed therein. Optionally, it may be used to perform the corresponding operations involved in the terminal device in the embodiments of the present application Figure 1 to FIG. 7. The second communication device 1202 may specifically be Figure 10 and Figure 11 the communication devices disclosed therein. Optionally, it may be used to perform the corresponding operations involved in the network device in the embodiments of the present application Figure 1 to FIG. 7. The specific process and implementation principle may refer to the above description and will not be elaborated here.

[0539] Those skilled in the art should be able to realize that in one or more of the above examples, the functions described in the present application can be implemented by hardware, software, firmware, or any combination thereof. When implemented using software, these functions can be stored in a computer-readable medium or transmitted as one or more instructions or codes in a computer-readable medium. The computer-readable medium includes computer storage media and communication media, where the communication media includes any medium facilitating the transmission of a computer program from one place to another. The storage media can be any available medium accessible by a general-purpose or special-purpose computer.

[0540] Each part of this specification is described in a progressive manner. For the same or similar parts among the embodiments, reference can be made to each other. Each embodiment focuses on the differences from other embodiments. In particular, for the device and system embodiments, since they are basically similar to the method embodiments, the description is relatively simple. For the relevant parts, reference can be made to the description in the method embodiment section.

[0541] Finally, it should be noted that the above embodiments are only used to exemplarily illustrate the technical solutions of the present application, rather than to limit them; although the technical solutions of the present application and the beneficial effects brought by the present application have been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the claims of the present application.

Claims

1. A sequence-based signal processing method, characterized in that, The signal processing method includes: Determine a sequence including N elements , where N is a positive integer greater than 1 is the sequence among the elements, and the sequence is a sequence that satisfies a preset condition, and the preset condition is:[[]] , where n ranges from 0 to N - 1, A is a non-zero complex number , the element , u is a non-zero complex number, and the sequence composed of the elements has a set that includes at least one of the sequences in the first sequence set or one of the equivalent sequences of the sequences in the first sequence set; Generating a first signal and transmitting it; Wherein, when N = 24, the sequences in the first sequence set include some or all of the sequences in sequence set 1, and the sequences in sequence set 1 include: {1, 0, 0, 0, 0, 1, 1, 1, 0, 1, 1, 0, 1, 1, 1, 0, 1, 0, 1, 1, 1, 1, 0, 0};{1, 0, 0, 1, 0, 0, 0, 0, 0, 1, 1, 1, 0, 1, 1, 0, 1, 0, 1, 1, 1, 0, 0, 0};{1,0, 0, 1, 0, 0, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0}; {1, 0,0, 1, 0, 1, 0, 1, 1, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 0, 0, 0, 0, 1};{1, 1, 0,0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 1, 1, 0, 0, 0, 1, 0, 1, 1, 0, 1}; {1, 0, 0, 1,0, 1, 1, 1, 0, 0, 1, 0, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 0, 0}。 2. The signal processing method according to claim 1, wherein The generating the first signal and transmitting it includes: Perform discrete Fourier transform processing on the N elements in the sequence to obtain the sequence ; Map the N elements in the said sequence to N consecutive subcarriers respectively to obtain a frequency-domain signal containing N elements; or map the N elements in the said sequence to N equally-spaced subcarriers respectively to obtain a frequency-domain signal containing N elements; Generating a first signal; Transmitting the first signal via radio frequency.

3. The signal processing method according to claim 2, characterized in that It further includes: Before performing discrete Fourier transform processing on the N elements in the sequence , filter the sequence ; or After performing discrete Fourier transform processing on the N elements in the sequence , filter the sequence .

4. The signal processing method according to any one of claims 1 to 3, characterized in that The first signal is a reference signal; or, the first signal is a signal for carrying communication information.

5. The signal processing method according to any one of claims 1 to 3, characterized in that The equivalent sequence is , and the elements in the equivalent sequence satisfy , , where N is the sequence length. ​ 6. A sequence-based signal processing method, characterized in that, The signal processing method includes: Receive a first signal carried on N subcarriers, and obtain N elements in a sequence, where N is a positive integer greater than 1. For n taking values from 0 to N - 1, A is a non-zero complex number. is an element in the sequence The sequence is a sequence that satisfies a preset condition, and the preset condition is: For n taking values from 0 to N - 1, A is a non-zero complex number. The element where u is a non-zero complex number, and the sequence composed of elements has a set that includes at least one of the sequences in a first sequence set or one of the equivalent sequences of the sequences in the first sequence set. Process the first signal according to N elements in the sequence ; Wherein, when N = 24, the sequences in the first sequence set include some or all of the sequences in sequence set 1, and the sequences in sequence set 1 include: {1, 0, 0, 0, 0, 1, 1, 1, 0, 1, 1, 0, 1, 1, 1, 0, 1, 0, 1, 1, 1, 1, 0, 0};{1, 0, 0, 1, 0, 0, 0, 0, 0, 1, 1, 1, 0, 1, 1, 0, 1, 0, 1, 1, 1, 0, 0, 0};{1,0, 0, 1, 0, 0, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0}; {1, 0,0, 1, 0, 1, 0, 1, 1, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 0, 0, 0, 0, 1};{1, 1, 0,0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 1, 1, 0, 0, 0, 1, 0, 1, 1, 0, 1}; {1, 0, 0, 1,0, 1, 1, 1, 0, 0, 1, 0, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 0, 0}。 7. The signal processing method according to claim 6, wherein Receiving a first signal carried on N subcarriers and obtaining N elements in a sequence including: Obtaining the first signal on N subcarriers on continuous N subcarriers, or obtaining the first signal on N subcarriers on equally spaced N subcarriers; Obtain a sequence of N elements, where N is a positive integer greater than 1, and the first signal is generated by mapping the sequence onto N subcarriers, where is an element in the sequence; Perform an inverse discrete Fourier transform on the said sequence to obtain N elements in the sequence .

8. The signal processing method according to claim 6 or 7, characterized in that, The first signal is a reference signal; or, the first signal is a signal for carrying communication information.

9. The signal processing method according to claim 6 or 7, characterized in that, The equivalent sequence is , and the elements in the equivalent sequence satisfy , , where N is the sequence length.

10. A sequence-based signal processing device, characterized in that, It includes: A processing unit for determining a sequence including N elements , generating a first signal, where N is a positive integer greater than 1 for the sequence among the elements, and the sequence is a sequence that satisfies a preset condition, and the preset condition is , where n ranges from 0 to N - 1, A is a non-zero complex number , the element , u is a non-zero complex number, and the sequence composed of the elements has a set that includes at least one of the sequences in the first sequence set or one of the equivalent sequences of the sequences in the first sequence set; Wherein, when N = 24, the sequences in the first sequence set include some or all of the sequences in sequence set 1, and the sequences in sequence set 1 include: {1, 0, 0, 0, 0, 1, 1, 1, 0, 1, 1, 0, 1, 1, 1, 0, 1, 0, 1, 1, 1, 1, 0, 0};{1, 0, 0, 1, 0, 0, 0, 0, 0, 1, 1, 1, 0, 1, 1, 0, 1, 0, 1, 1, 1, 0, 0, 0};{1,0, 0, 1, 0, 0, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0}; {1, 0,0, 1, 0, 1, 0, 1, 1, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 0, 0, 0, 0, 1};{1, 1, 0,0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 1, 1, 0, 0, 0, 1, 0, 1, 1, 0, 1}; {1, 0, 0, 1,0, 1, 1, 1, 0, 0, 1, 0, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 0, 0}； A transceiver unit for transmitting the first signal.

11. The signal processing device according to claim 10, wherein The processing unit is further configured to: perform discrete Fourier transform processing on N elements in the sequence to obtain a sequence ; map the N elements in the sequence to N consecutive subcarriers respectively to obtain a frequency-domain signal including N elements; or map the N elements in the sequence to N equally-spaced subcarriers respectively to obtain a frequency-domain signal including N elements; generate a first signal. The transceiver unit is further configured to: Transmit the first signal via radio frequency.

12. The signal processing device according to claim 11, wherein The processing unit is further configured to: Before performing discrete Fourier transform processing on the N elements in the sequence , filter the N elements in the sequence ; or, after performing discrete Fourier transform processing on the N elements in the sequence , filter the N elements in the sequence .

13. The signal processing device according to any one of claims 10 to 12, characterized in that, The first signal is a reference signal; or, the first signal is a signal for carrying communication information.

14. The signal processing device according to any one of claims 10 to 12, characterized in that, The equivalent sequence is , the elements in the equivalent sequence satisfy , , where N is the sequence length. ​ 15. A sequence-based signal processing device, characterized in that It includes: A transceiver unit for receiving the first signal carried on N subcarriers; A processing unit for obtaining N elements in a sequence, where N is a positive integer greater than 1, being elements in the sequence and the sequence being a sequence that meets a preset condition, the preset condition being: , where n ranges from 0 to N - 1, A is a non-zero complex number, , element , u is a non-zero complex number, and the set of sequences composed of elements includes at least one of the sequences in the first sequence set or one of the equivalent sequences of the sequences in the first sequence set; processing the first signal according to the N elements in the sequence ; ​ Wherein, when N = 24, the sequences in the first sequence set include some or all of the sequences in sequence set 1, and the sequences in sequence set 1 include: {1, 0, 0, 0, 0, 1, 1, 1, 0, 1, 1, 0, 1, 1, 1, 0, 1, 0, 1, 1, 1, 1, 0, 0};{1, 0, 0, 1, 0, 0, 0, 0, 0, 1, 1, 1, 0, 1, 1, 0, 1, 0, 1, 1, 1, 0, 0, 0};{1,0, 0, 1, 0, 0, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0}; {1, 0,0, 1, 0, 1, 0, 1, 1, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 0, 0, 0, 0, 1};{1, 1, 0,0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 1, 1, 0, 0, 0, 1, 0, 1, 1, 0, 1}; {1, 0, 0, 1,0, 1, 1, 1, 0, 0, 1, 0, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 0, 0}。 16. The signal processing device according to claim 15, wherein The transceiver unit is further configured to obtain the first signal on N subcarriers on continuous N subcarriers, or obtain the first signal on N subcarriers on equally spaced N subcarriers; The processing unit is further configured to obtain a sequence of N elements, where N is a positive integer greater than 1, and the first signal is generated by mapping the sequence onto N subcarriers, being an element in the sequence ; perform an inverse discrete Fourier transform process on the sequence to obtain N elements in the sequence .

17. A computer-readable storage medium for storing a computer program, characterized in that, The computer program is used to execute the instructions of the signal processing method according to any one of claims 1 - 9.

18. A chip device, characterized in that, The chip device is used to execute the instructions of the signal processing method according to any one of claims 1 - 9.

19. A communication device, characterized in that, The communication device is used to execute the instructions of the signal processing method according to any one of claims 1 - 9.

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