公开(公告)号：US09860050B1

公开(公告)日：2018-01-02

申请号：US14571959

申请日：2014-12-16

Applicant: Amazon Technologies, Inc.

Inventor： Rama Diwakara Rao Noolu ,  Saranya Chandrasekaran ,  Adrian Napoles

IPC: H04W24/02 ,  H04L5/14 ,  H04W72/04

CPC classification number: H04L5/14 ,  H04M1/725 ,  H04W24/02

Abstract: Dynamic tuning of antennas towards a receive channel carrier frequency, a transmit channel carrier frequency, or between the receive channel and transmit channel carrier frequencies in frequency division duplex (FDD) communications systems is disclosed. A user device, such as a mobile communications device may be configured to dynamically tune its antenna based at least in part on the amount of data to transmit, data to receive, a receive channel quality, and/or a transmit channel quality. The antenna may be tuned to one of the transmit or receive channels or a frequency between the transmit and receive channels based at least in part on which channel, if any, may benefit from greater antenna efficiency.