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Title:
SIGNAL PROCESSING CIRCUIT AND DIGITAL TRANSMITTER
Document Type and Number:
WIPO Patent Application WO/2019/205050
Kind Code:
A1
Abstract:
Disclosed by the present application is a signal processing circuit for processing signals of different system bandwidths, improving signal processing efficiency, and reducing tuning difficulty. The signal processing circuit comprises: a signal processing module and an amplifying module; the signal processing module includes at least two baseband processing modules, and the amplifying module includes at least two digital power amplifier (DPA) units; the at least two baseband processing modules and the at least two DPA units form at least two signal processing branches, and signals carried in each signal processing branch have the same slope; the signal processing module is configured to generate a baseband signal according to an input signal, and transmit the baseband signal to the amplifying module; and the amplifying module is configured to modulate the baseband signal and convert the baseband signal to an analog signal for output to an external circuit.

Inventors:
SI, Xiaoshu (Huawei Administration Building, Bantian Longgang Distric, Shenzhen Guangdong 9, 518129, CN)
REN, Zhixiong (Huawei Administration Building, Bantian Longgang Distric, Shenzhen Guangdong 9, 518129, CN)
Application Number:
CN2018/084593
Publication Date:
October 31, 2019
Filing Date:
April 26, 2018
Export Citation:
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Assignee:
HUAWEI TECHNOLOGIES CO., LTD. (Huawei Administration Building, Bantian Longgang Distric, Shenzhen Guangdong 9, 518129, CN)
International Classes:
H04B3/00
Domestic Patent References:
WO2017189250A12017-11-02
WO2017101816A12017-06-22
Foreign References:
CN102362472A2012-02-22
Attorney, Agent or Firm:
SHENPAT INTELLECTUAL PROPERTY AGENCY (18C2, 18D 18E, 18E2,Block B, Lushan Building Chunfeng Road, Nanhu Street, Luohu Distric, Shenzhen Guangdong 1, 518001, CN)
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