FM Harmonic Interference to LTE Wireless Systems

LTE, Long Term Evolution, is an internationally-popular wireless technology bringing high-speed broadband data to phones and computing devices on many cellular/wireless systems, Since 2011, cellular operators have deployed new LTE broadband wireless operation at thousands of their sites. The new OFDM-based LTE technology pushes spectral efficiency and data throughput close to the Shannon limit, but in so doing becomes particularly vulnerable to low-level uplink interference, LTE operator complaints of interference from nearby FM broadcast station harmonics number in the hundreds.