Patent ID: 7801107

Claim:
A method for transmitting a packet in a wireless communications network, comprising: constructing a packet including synchronization header, a physical layer header, and a payload; inserting a preamble and a start of frame delimiter in the synchronization header; inserting an arbitrary sequence of ternary codes in the start of frame delimiter, each code representing a fixed length ternary sequence, in which the ternary codes are 0, +1, or −1, and each code 0 corresponds to a sequence of zeros having the fixed length, and each code +1 represents a perfectly balanced ternary sequence of the fixed length in the preamble, and each code −1 represents a negation of the perfectly balanced ternary sequence in the preamble, and in which the arbitrary sequence of ternary codes is represented by Su, and the perfectly balanced ternary sequence is represented by Si, and the start of frame delimiter is a Kronecker product of Su{circle around (x)}Si; and transmitting the packet.