Communication method for use of wireless terminal device, communication method for use of wireless base station device, wireless terminal device, and wireless base station device

A method for use of a wireless base station device, comprising:

• receiving a Probe request frame transmitted from a wireless terminal device using a quasi-omni antenna pattern in a first channel if the beam-forming training with the wireless terminal device is not completed;
• transmitting the Probe response frame to the wireless terminal device on the basis of the Probe request frame;
• and
• performing the beam-forming training with the wireless terminal device without transmitting the Probe response frame if a time period for receiving the Probe response frame has passed.

A wireless terminal device comprising:

• a receiving antenna array;
• a sequencer circuit;
• and
• a transmitting antenna array,
• wherein if beam-forming training with a wireless base station device is not completed in a first channel, the sequencer circuit sets up an antenna pattern of the transmitting antenna array to a quasi-omni antenna pattern, and the transmitting antenna array transmits a Probe request frame to the wireless base station device,
• wherein if the receiving antenna array receives a Probe response frame corresponding to the Probe request frame from the wireless base station device, the sequencer circuit selects the wireless base station device as a connection destination, and
• wherein if a time period for receiving the Probe response frame from the wireless base station device has passed, the sequencer circuit performs the beam-forming training with the wireless base station device in a second channel.

A wireless base station device comprising:

• a receiving antenna array;
• a sequencer circuit;
• and
• a transmitting antenna array,
• wherein if the beam-forming training with a wireless terminal device is not completed in a first channel, the receiving antenna array receives a Probe request frame transmitted from the wireless terminal device using a quasi-omni antenna pattern,
• wherein the transmitting antenna array transmits a Probe response frame on the basis of the Probe request frame, and
• wherein if a time period for receiving the Probe response frame has passed, the sequencer circuit performs the beam-forming training with the wireless terminal device in a second channel.