Title:
SIGNAL PROCESSING METHOD AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/218733
Kind Code:
A1
Abstract:
Disclosed in the present application are a signal processing method and device. The method comprises: performing coded modulation processing on first data to obtain a first signal, wherein the coded modulation processing comprises probabilistic constellation shaping (PCS) processing, and a first probability density function (PDF) is obtained after the first data is subject to the PCS processing; determining a first quantization parameter set according to the first PDF, the first quantization parameter set comprising at least one quantization parameter, the quantization parameter being a difference between magnitude values of two adjacent level signals, and each level signal corresponding to one voltage value within a voltage measurement range of a DAC; and performing, according to the first quantization parameter set, fixed-point quantization processing on the first signal to obtain a second signal. On the basis of probability distribution characteristics of signal magnitudes subject to PCS, the method adds an ENOB-augmented coding function at a sending end, and converts original uniform quantization parameters into a non-uniform first quantization parameter set, thereby improving the accuracy of ENOB.
Inventors:
ZHAO MAN (CN)
DENG BANGMEI (CN)
CHAI SHENGJUN (CN)
DENG BANGMEI (CN)
CHAI SHENGJUN (CN)
Application Number:
PCT/CN2021/088638
Publication Date:
November 04, 2021
Filing Date:
April 21, 2021
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04B10/50
Foreign References:
| CN1332906A | 2002-01-23 | |||
| CN106712771A | 2017-05-24 | |||
| CN111064521A | 2020-04-24 | |||
| CN108494719A | 2018-09-04 | |||
| US20180026725A1 | 2018-01-25 | |||
| US10396899B1 | 2019-08-27 |
Attorney, Agent or Firm:
CHINABLE IP (CN)
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