Patent ID: 6603734
Filing Date: 2003-08-05
Classification: H04L

Abstract:
A method for eliminating interference in an orthogonal frequency division multiplexing radio receiver of a wide band mobile telecommunication system, the method comprising:receiving coded signals transmitted on subcarriers; generating reliability information for the received coded signals; using the reliability information in soft decoding of the coded signals; using a signal-to-interference ratio of a subcarrier as the reliability information, the signal-to-interference ratio being defined by dividing an amplitude of a received signal by an interference amplitude of the received signal, the interference amplitude being defined by calculating a deviation of the amplitudes of a set of selected signals from an average amplitude level of the set of selected signals; and selecting the amplitudes of the set of selected signals from successive symbols in the time domain and from adjacent subcarriers in the frequency domain such that the number of signals selected as part of the set of selected signals is smaller than one fifth of the number of subcarriers.