Patent ID: 8243777
Filing Date: 2012-08-14
Classification: H04L

Abstract:
1. A symbol timing offset estimation method for an Orthogonal Frequency Division Multiplexing (OFDM) system, comprising the steps of: acquiring a Carrier to Interference Ratio (CIR) of a Reference Signal (RS) using received pilot signals, wherein the RS CIR comprises power information on channel components of the RS; acquiring a CIR of a Secondary Synchronization Channel (S-SCH) using the received pilot signals, wherein the S-SCH CIR comprises power information on channel components of the S-SCH; suppressing unnecessary channel components from the RS CIR using the S-SCH CIR, wherein real channel components of the RS remain; setting an observation window having a predetermined duration for windowing the real channel components of the RS; searching for a first arriving channel component within the observation window; and estimating a start point of data using the first arriving channel component.