US Patent No. 9,369,161

MITIGATION OF RADIO-FREQUENCY INTERFERENCE AT A REMOTE RADIO HEAD


Patent No. 9,369,161
Issue Date June 14, 2016
Title Mitigation Of Radio-frequency Interference At A Remote Radio Head
Inventorship Chaitanya Chukka, Overland Park, KS (US)
Andrew M. Wurtenberger, Olathe, KS (US)
Patrick Jacob Schmidt, Bonner Springs, KS (US)
Sreekar Marupaduga, Overland Park, KS (US)
Assignee Sprint Communications Company L.P., Overland Park, KS (US)

Claim of US Patent No. 9,369,161

1. One or more non-transitory computer-readable media having computer executable instructions embodied thereon that, when
executed, perform a method of mitigating radio-frequency (RF) interference at a remote radio head (RRH) of a base station
due to non-linearity in one or more of the RRH components including at least a power amplifier, wherein the power amplifier
is configured to operate in an at least an active mode and a saturation mode, the method comprising:
receiving RF-interference indicators from a plurality of user devices communicating with the base station;
using the RF-interference indicators:
adjusting the power amplifier such that the power amplifier operates in the active mode when the RF-interference indicators
indicate that RF interference at the RRH is below a predefined threshold; and

adjusting the power amplifier such that the power amplifier operates in the saturation mode when the RF-interference indicators
indicate that RF interference at the RRH is above the predefined threshold.