Patent ID: 8036162

Claim:
A wireless communication system, comprising: a first wireless communication device for generating and transmitting a first wireless communication signal; a second wireless communication device for generating and transmitting a second wireless communication signal of a communication system different from the communication system of said first wireless communication signal, or the same communication system; and a third wireless communication device for receiving said first and second wireless communication signals, wherein said first wireless communication signal and said second wireless communication signal are adjacently positioned on a frequency axis; said third wireless communication device includes a fixed band-pass filter through which received said first wireless communication signal and said second wireless communication signal are selectively passed at a fixed pass band, so that a signal of a total frequency band of said first wireless communication signal and said second wireless communication signal can pass through, and a first variable band-pass filter through which the signal passed through said fixed band-pass filter is selectively passed at a variable pass band, said first wireless communication signal includes a control information indicating said variable pass band in said first variable band-pass filter; and said control information is given to said first variable band-pass filter, thereby enabling said first wireless communication signal to be selectively passed through said first variable band-pass filter, while removing said second wireless communication signal.