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

A signal processing and sequence technology, applied in the field of communication, can solve the problems of low PAPR requirements of the communication system and good frequency domain flatness, etc.

CN109802908AActive Publication Date: 2019-05-24HUAWEI TECH CO LTD
6 Cites 5 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2019-05-24

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

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.
Need to check novelty before this filing date? Find Prior Art

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...

Examples

Embodiment Construction

[0050] The embodiment of the present application provides a sequence-based signal processing method, related equipment, and communication system. By determining the sequence used to satisfy the reference signal or control channel transmission signal, the sequence interval can be maintained when the reference signal or control channel is used to transmit the signal. Low cross-correlation, while maintaining low PAPR value and CM value, so as to meet the communication application environment using reference signal or control channel to send signals.

[0051] The terms "first" and "second" in the embodiments, claims, and drawings of the present application are used to distinguish different objects, rather than to describe a specific order. Furthermore, the terms "comprising" and "having" are not exclusive. For example, a process, method, system, product or device including a series of steps or units is not limited to the listed steps or units, and may also include unlisted steps o...