Sequence-based signal processing method, signal processing device and computer readable storage medium

Abstract

The invention provides a sequence-based signal processing method, signal processing device and computer readable storage medium. The method comprises the following steps: determining a sequence used for meeting a reference signal or a control channel sending signal; wherein the sequence is a sequence [fn] comprising N elements, the fn refers to elements in the sequence [fn], the determined sequence [fn] is a sequence meeting a preset condition, and then the N elements in the sequence[fn] are respectively mapped to N subcarriers to generate a first signal and send the first signal. By utilizing the determined sequence, low cross-correlation between the sequences can be kept, and a reference signal or a control channel can keep a lower PAPR value and a lower CM value, so that a communication application environment for transmitting a signal by utilizing the reference signal or the control channel is met, especially when / 2 <-> is transmitted; And when the BPSK modulates the data signal or carries out frequency shaping filtering on the reference signal or the control channel.

Description

technical field [0001] The present application relates to the technical field of communications, and in particular, to a sequence-based signal processing method, a signal processing device, and a computer-readable storage medium. Background technique [0002] Currently, in the LTE system, there are 30 root sequences {x i}, i=0, 1, 2,..., N-1, N=6, 12, 18 or 24, used for LTE demodulation reference signal (Demodulation Reference Signal, DMRS). In the 5G NR (NewRadio) system, 30 low PAPR sequences with a length of N=12 are defined, which are used to transmit 1 to 2 bits of a reference signal occupying 1 RB or the transmission of a control channel (physical uplink control channel) , can also be used for DMRS transmission of a data channel of 1 RB. [0003] In the NR system, π / 2-BPSK modulation is considered, which is applied to the case of DFT-S-OFDM (Discrete Fourier Transform Extended OFDM) transmission, or applied to a single carrier system. After the signal is modulated b...

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Problems solved by technology

[0007] In view of this, the embodiments of the present application provide a sequence-based signal processing method, signal processing device, communication system, computer-readable storage medium, and computer program product, which are used to solve the PAPR of the transmitted sequence signal in the prior art. It cannot meet the low PAPR requirements of the communication system and the frequency domain flatness is relatively good, especially when the data channel uses π / 2-BPSK, or the transmitted sequence signal is subjected to frequency domain shaping filtering

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