Title:
RADIO-FREQUENCY CIRCUIT, SIGNAL FEEDBACK CIRCUIT, AND COMMUNICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2022/110230
Kind Code:
A1
Abstract:
A radio-frequency circuit, a signal feedback circuit, and a communication system, used for configuring a signal feedback path for the communication system. The radio-frequency circuit comprises at least one radio-frequency transmitting channel and a radio-frequency circuit; the at least one radio-frequency transmitting channel is connected to at least one PA, and the at least one PA is connected to at least one envelope tracking (ET) circuit which is used for supplying power to the at least one PA; a first input end of the signal feedback circuit is connected to an output end of the at least one PA, a second input end of the signal feedback circuit is connected to an output end of the at least one ET circuit, and the signal feedback circuit is used for feeding back an output signal of the at least one PA and a signal outputted by the at least one ET circuit and outputting by means of an output end of the signal feedback circuit.
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Inventors:
GUO YAN (CN)
LI XIAORAN (CN)
LI WEINAN (CN)
LI FENG (CN)
LI PENG (CN)
SHI PO (CN)
LI XIAORAN (CN)
LI WEINAN (CN)
LI FENG (CN)
LI PENG (CN)
SHI PO (CN)
Application Number:
PCT/CN2020/132959
Publication Date:
June 02, 2022
Filing Date:
November 30, 2020
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04L25/49; H04B17/13
Foreign References:
| CN105991096A | 2016-10-05 | |||
| CN106209270A | 2016-12-07 | |||
| US20130072139A1 | 2013-03-21 | |||
| US20130049858A1 | 2013-02-28 |
Attorney, Agent or Firm:
TDIP & PARTNERS (CN)
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