Patent ID: 9503207
Filing Date: 2016-11-22
CPC Classification: H04B,H04J,H04L,H04W

Claim Text:
1. A method for calibrating phase hardware-induced distortion in a long term evolution (LTE) communications system, the method comprising: receiving, from a user equipment (UE) in an LTE communications system, an estimate of a phase difference at the UE between estimated downlink channels obtained from signals sent over two or more base station (BS) transmitter chains; determining, at a BS, a phase difference between estimated uplink channels obtained from signals received over two or more BS receiver chains; and determining, based on the received estimate of phase difference between estimated downlink channels and the determined phase difference between estimated uplink channels, a relative phase distortion induced by two or more BS transceiver chains including the two or more BS transmitter chains and the two or more BS receiver chains; wherein at least one of the preceding actions is performed on at least one electronic hardware component.