METHOD AND DEVICE FOR REDUCING INTER-SUBCARRIER INTERFERENCE IN OFDMA SYSTEM

摘要

Embodiments of the present invention provide a method and device for reducing inter-subcarrier interference in an OFDMA system. The method for reducing inter-subcarrier interference in an OFDMA system comprises: estimating a carrier frequency deviation value of a user equipment according to pilot symbols in subcarriers occupied by the user equipment; determining, according to the carrier frequency deviation value, an inter-carrier interference (ICI) cancellation filter coefficient corresponding to the user equipment; and filtering frequency domain data of the user equipment by using the ICI cancellation filter coefficient. Therefore, the interference between the subcarriers occupied by the user equipment is eliminated, and the inter-subcarrier interference in the OFDMA system is reduced.