Patent ID: 6996161

Claim:
A method for data communication in a Wireless local area network (WLAN) using a plurality of correlators and M-ary Code Keying with an associated chip period, wherein the communication utilizes a signature sequence of a type generated by performing the steps of: selecting a seed set of sequences of a given size having a plurality of inner sequences; generating a plurality of cosets from the seed set of sequences by multiplying in turn each inner sequence by an element of an associated sequence; constructing a subset of sequences by concatenating the sequences of a coset; and constructing a full set of sequences by concatenating subsets of sequences, for simultaneously generating: a periodic signal for acquiring symbol synchronization; and a difference squarewave signal for acquiring and maintaining chip synchronization, a chip synchronization signal being generated by subtracting a sum of even groups of correlator outputs from a sum of odd groups of correlator outputs.