Patent ID: 7983296

Claim:
A wireless communication system comprising: a first communication station configured to operate according to a first communication method; a second communication station configured to operate according to both the first communication method and a second communication method and transmit a packet composed of a first decoding portion including spoofed information of a packet length and a transmission rate receivable according to said first communication method, and a second decoding portion receivable according to said second communication method, wherein at least a part of said second decoding portion is modulated by using a modulation scheme that translates a signal point location of said at least a part of said second decoding portion by 90 degrees phase rotation relative to a phase of said first decoding portion containing said spoofed information, said first decoding portion being a PHY header including the spoofed information and another portion that is phase rotated relative to the phase of the first decoding portion containing the spoofed information.