US Patent No. 10,367,563

BASE STATION DEVICE, WIRELESS TERMINAL DEVICE, AND WIRELESS COMMUNICATION METHOD


Patent No. 10,367,563
Issue Date July 30, 2019
Title Base Station Device, Wireless Terminal Device, And Wireless Communication Method
Inventorship Masataka Irie, Kanagawa (JP)
Naganori Shirakata, Kanagawa (JP)
Hiroyuki Motozuka, Kanagawa (JP)
Hiroshi Takahashi, Kanagawa (JP)
Assignee Panasonic Intellectual Property Management Co., Ltd., Osaka (JP)

Claim of US Patent No. 10,367,563

1. A base station device comprising:frame generation circuitry that generates a first training frame used for receive beam training among frames used for beamforming training and generates at least one trailer as a second training frame, the receive beam training being beam refinement protocol (BRP);
beam controlling circuitry that sets a beam used to transmit the first training frame to an omnidirectional beam;
transmission circuitry that transmits the first training frame at the lowest Modulation and Coding Scheme (MCS) rate defined in IEEE 802.11 and omnidirectionally transmits the second training frame after omnidirectionally transmitting the first training frame;
reception circuitry that receives a first response frame and a second response frame from a wireless terminal device that has received the first training frame after a determined period since transmission of the first training frame; and
frame determination circuitry that determines whether the received first response frame is a response to the receive beam training,
wherein in a case where the received first response frame is a response to the receive beam training, the beam controlling circuitry sets a beam received by the receiver to a directional beam, and the reception circuitry receives the second response frame by using the directional beam.