Communication devices and methods for secure communication

A second communication device for use in a wireless communication system to communicate with a first communication device, the second communication device comprising circuitry configured to

• take part in beamforming training with the first communication device to train a plurality of antenna beams used by the first communication device for transmitting and/or receiving signals,
• receive selection information indicating one or more of the trained antenna beam combinations selected according to a security criterion that is directed to minimizing the probability that a third communication device can eavesdrop on the communication between the first communication device and the second communication device, and
• communicate with the first communication device using the selected one or more antenna beam combinations.

A first communication method of a first communication device for use in a wireless communication system to communicate with a second communication device, the first communication method comprising

• performing beamforming training with the second communication device to train a plurality of antenna beam combinations of antenna beams used by the first and second communication devices for transmitting and/or receiving signals,
• selecting one or more of the trained antenna beam combinations according to a security criterion that is directed to reducing the probability that a third communication device can eavesdrop on the communication between the first communication device and the second communication device, and
• communicating with the second communication device using the selected one or more antenna beam combinations.

A second communication method of a second communication device for use in a wireless communication system to communicate with a first communication device, the second communication method comprising

• taking part in beamforming training with the first communication device to train a plurality of antenna beams used by the first communication device for transmitting and/or receiving signals,
• receiving selection information indicating one or more of the trained antenna beam combinations selected according to a security criterion that is directed to reducing the probability that a third communication device can eavesdrop on the communication between the first communication device and the second communication device, and
• communicating with the first communication device using the selected one or more antenna beam combinations.