US 12,334,963 B2
Radio-frequency L-DRX device, radio-frequency transceiving system, and communication apparatus
Wu Chen, Dongguan (CN)
Assigned to GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD., Dongguan (CN)
Filed by GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD., Dongguan (CN)
Filed on Nov. 14, 2022, as Appl. No. 17/986,659.
Application 17/986,659 is a continuation of application No. PCT/CN2021/089585, filed on Apr. 25, 2021.
Claims priority of application No. 202010459959.7 (CN), filed on May 26, 2020; and application No. 202020916149.5 (CN), filed on May 26, 2020.
Prior Publication US 2023/0089408 A1, Mar. 23, 2023
Int. Cl. H04B 1/04 (2006.01)
CPC H04B 1/04 (2013.01) [H04B 2001/0408 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A radio-frequency Low Noise Amplifier-Diversity receive (RX) (L-DRX) device, having a receiving port and a polling transmitting port that are used for a connection to a radio-frequency transceiver, and an antenna port for a connection to an antenna, the radio-frequency L-DRX device comprising:
a first switching unit connected to the antenna port and the polling transmitting port, the first switching unit being configured to selectively switch on a receiving path where the receiving port is located and a transmitting path where the polling transmitting port is located;
a first filtering unit disposed in the receiving path or the transmitting path, the first filtering unit being configured to perform a filtering processing on a received or transmitted radio-frequency signal; and
a first low noise amplifier disposed in the receiving path and having an output terminal connected to the receiving port, the first low noise amplifier being configured to amplify the filtered radio-frequency signal to be outputted via the receiving port.