US 2019/0320444 A1 · Automated Interference Mitigation in Frequency Division Duplex (FDD) Wireless Networks

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.

Claims24

Dependent claims

A method for use in a frequency division duplex (FDD) wireless network including a base station (BS) and a user equipment (UE) being in communication through a medium having an uplink communication channel supporting uplink data communications from the UE to the BS, and a downlink communication channel supporting downlink data communications from the BS to the UE, the method comprising:

identifying an uplink frequency spectrum in the uplink communication channel being affected by an interfering signal;
determining an uplink power level of the interfering signal in the uplink communication channel;
determining whether the interfering signal is caused by a passive intermodulation distortion (PIM);
and
in response to determining that that the interfering signal is caused by the PIM, adjusting, based on the identified uplink frequency spectrum and the determined uplink power level of the interfering signal, at least one of a downlink power level of a downlink signal being transmitted in the downlink communication channel and a downlink frequency range in the downlink communication channel.

2 more elements

A device for use in a frequency division duplex (FDD) wireless network including a base station (BS) and a user equipment (UE) being in communication through a medium having an uplink communication channel supporting uplink data communications from the UE to the BS, and a downlink communication channel supporting downlink data communications from the BS to the UE, the device comprising:

a hardware processor configured to:
identify an uplink frequency spectrum in the uplink communication channel being affected by an interfering signal;
to determine an uplink power level of the interfering signal in the uplink communication channel;
determine whether the interfering signal is caused by a passive intermodulation distortion (PIM);
and
in response to determining that that the interfering signal is caused by the PIM, adjust, based on the identified uplink frequency spectrum and the determined uplink power level of the interfering signal, at least one of a downlink power level of a downlink signal being transmitted in the downlink communication channel and a downlink frequency range in the downlink communication channel.

3 more elements

Dependencies are inferred from the claim text.

Automated Interference Mitigation in Frequency Division Duplex (FDD) Wireless Networks

Life of this patent

Automated Interference Mitigation in Frequency Division Duplex (FDD) Wireless Networks

Life of this patent

Abstract

Claims24