Patent ID: 6859899
Filing Date: 2005-02-22
Classification: H04L

Abstract:
1. A method for acquiring packet synchronization in a packet type communication network, comprising the steps of: providing a data packet having a framing format including a preamble split into a plurality of subpreambles of non-interleaved symbols followed by data symbols; for individual subpreamble and for combined subpreamble options, determining the following parameter: where T i is the preamble or subpreamble duration in each option, t i is the preamble or subpreamble start time, β 1 is the approximation of α 1 , and {circumflex over (φ)} i is the estimated phase shift in each option; and determining synchronization using correlation with a priori known symbols using the subpreamble or combined subpreamble option which provides the lowest β.