Victim System Detector, Method of Detecting a Victim System, Wireless Communication Device and Wireless Communication Method

A wireless communication device, comprising:

• an antenna configured to receive a wireless signal in a first wireless communication system;
• a radio frequency (RF) unit configured to receive the wireless signal from the antenna and configured to convert the wireless signal into a baseband signal;
• and
• a baseband processor configured to perform a data processing operation based on the baseband signal, the baseband processor including:
• an analog-digital converter (ADC) configured to convert the baseband signal into a digital baseband signal;
• a frequency domain converter configured to convert the digital baseband signal into a frequency domain baseband signal;
• and
• a system detector configured to calculate a correlation value between the frequency domain baseband signal and a correlation sequence of a second wireless communication system and configured to determine, based on the correlation value, whether the second wireless communication system uses frequency bands that are used by the first wireless communication system.

A wireless communication method, comprising:

• receiving a wireless signal in a first wireless communication system;
• converting the wireless signal into a baseband signal;
• converting the baseband signal into a digital baseband signal;
• converting the digital baseband signal into a frequency domain baseband signal;
• calculating a correlation value between the frequency domain baseband signal and a correlation sequence of a second wireless communication system;
• determining, based on the correlation value, whether the second wireless communication system uses frequency bands that are used by the first wireless communication system;
• and
• reducing interference with the second wireless communication system when the second wireless communication system uses frequency bands that are used by the first wireless communication system.