Patent ID: 6859899

Claim:
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: β i = 1 T i 2 · ∫ t i t i + T i | r ⁡ ( t ) · ⅇ - j ⁢ ⁢ ϕ i ^ ⁢ | 2 ⁢ ⅆ t ; 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.