公开(公告)号：US11916587B2

公开(公告)日：2024-02-27

申请号：US17485016

申请日：2021-09-24

Applicant: QUALCOMM Incorporated

Inventor： Hasnain Lakdawala ,  Ahmed Abbas Mohamed Helmy ,  Francesco Gatta ,  Balasubramanian Ramachandran ,  Ketan Humnabadkar ,  Andrea Fenaroli

IPC: H04B1/403 ,  H04W72/23

CPC classification number: H04B1/403 ,  H04W72/23

Abstract: Techniques and apparatus are described for reducing power consumption when performing wireless communications by dynamically changing the frequency of a local oscillator signal for a radio frequency (RF) downconversion circuit, based on signal conditions. An example method includes receiving an RF signal and downconverting the RF signal using an oscillating signal with a first frequency at a first time. The method also includes switching to downconverting the RF signal using the oscillating signal with a second frequency, based on a property associated with the RF signal at a second time. The second frequency is a subharmonic of the first frequency.