Jeffrey A Heath

US Patent:

20190320444, Oct 17, 2019

Filed:

Apr 11, 2019

Appl. No.:

16/382020

Inventors:

- San Jose CA, US
Jeffrey Abramson Heath - Jericho NY, US

International Classification:

H04W 72/08
H04L 5/14
H04W 72/12
H04W 72/04

Abstract:

A method is disclosed for use in a frequency division duplex (FDD) wireless network including a base station (BS) and a user equipment controller (UE) communicating through a medium having an uplink communication channel supporting communications from the UE to the BS, and a downlink communication channel supporting communications from the BS to the UE. The method includes identifying an uplink frequency spectrum in the uplink communication channel affected by an interfering signal, and determining the uplink power level of the interfering signal and whether the interfering signal is caused by passive intermodulation distortion (PIM). In response to determining that that the interfering signal is caused by PIM, the method includes adjusting, based on the uplink frequency spectrum and the uplink power level of the interfering signal, one or more of a downlink power level of a downlink transmission signal and a downlink frequency range in the downlink communication channel.