US 11,799,507 B2
Configurable receive path for mixer-first or amplifier-first signal processing
Jang Joon Lee, San Diego, CA (US); Kyle David Holland, San Diego, CA (US); Jian Kang, San Diego, CA (US); Aleksandar Miodrag Tasic, San Diego, CA (US); Chih-Fan Liao, San Diego, CA (US); Yingying Li, San Diego, CA (US); Lai Kan Leung, San Marcos, CA (US); and Chiewcharn Narathong, Laguna Niguel, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Sep. 22, 2021, as Appl. No. 17/448,499.
Prior Publication US 2023/0089220 A1, Mar. 23, 2023
Int. Cl. H04B 1/26 (2006.01); H04B 1/16 (2006.01)
CPC H04B 1/1638 (2013.01) 28 Claims
OG exemplary drawing
 
1. A method, comprising:
processing a radio frequency (RF) input signal in a receiver in an amplifier-first configuration through a first mixer;
determining whether criteria are met for switching to a mixer-first configuration for the receiver;
when the determining results in determining the criteria are met:
configuring the receiver to the mixer-first configuration, the configuring comprising bypassing an amplifier of the receiver; and
processing the RF input signal in the receiver in the mixer-first configuration through a second mixer,
wherein processing the RF input signal in the receiver in the mixer-first configuration comprises adjusting a gain control element before downconverting the RF input signal in the second mixer, the gain control element being separate from the amplifier.