SIGNAL PROCESSING METHOD AND APPARATUS

Title:

SIGNAL PROCESSING METHOD AND APPARATUS

Document Type and Number:

WIPO Patent Application WO/2022/000341

Kind Code:

A1

Abstract:

A signal processing method and apparatus, involving: when a first radio-frequency emission channel operates at a first bandwidth, the first radio-frequency emission channel is configured to provide, for a first PA, a signal which is subjected to digital pre-distortion processing, and a first power module is configured to provide a power voltage having a non-envelope waveform to the first PA; the first PA is used to perform amplifying processing on a first signal output from the first radio-frequency emission channel; and when the first radio-frequency emission channel operates at a second bandwidth, the first power module is configured to provide a power voltage having an envelope waveform to the first PA, and the first radio-frequency emission channel is configured to provide, for the first PA, a signal that is not subjected to the digital pre-distortion processing. In the solution, when a bandwidth is switched, an LUT which is required for the digital pre-distortion processing does not need to be adjusted, and an LUT which is required for generating the power voltage having the envelope waveform also does not need to be adjusted, and therefore, quick switching of the bandwidth can be realized, and nonlinear distortion of a signal output from the first radio-frequency emission channel can also be reduced.

Inventors:

GUO YAN (CN)
HUANG BAOPING (CN)
LI FENG (CN)
LI PENG (CN)
SHI PO (CN)

Application Number:

PCT/CN2020/099581

Publication Date:

January 06, 2022

Filing Date:

June 30, 2020

Export Citation:

Click for automatic bibliography generation Help

Assignee:

HUAWEI TECH CO LTD (CN)

International Classes:

H03F3/20; H03F1/32

Domestic Patent References:

WO2019190469A1

2019-10-03

Foreign References:

CN105515538A	2016-04-20
CN106464392A	2017-02-22
CN101803318A	2010-08-11

Other References: