US 12,457,595 B2
Communication apparatus and communication method
Ryuichi Hirata, Tokyo (JP); and Yusuke Tanaka, Tokyo (JP)
Assigned to SONY GROUP CORPORATION, Tokyo (JP)
Filed by Sony Group Corporation, Tokyo (JP)
Filed on May 6, 2024, as Appl. No. 18/655,361.
Application 18/655,361 is a continuation of application No. 17/430,729, granted, now 12,028,843, previously published as PCT/JP2020/001026, filed on Jan. 15, 2020.
Claims priority of application No. 2019-059860 (JP), filed on Mar. 27, 2019.
Prior Publication US 2024/0292394 A1, Aug. 29, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 72/0453 (2023.01); H04L 5/00 (2006.01); H04W 74/0816 (2024.01)
CPC H04W 72/0453 (2013.01) [H04W 74/0816 (2013.01); H04L 5/0005 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A communication apparatus comprising:
a control circuit that controls a communication operation of a transceiver that performs transmission of a wireless signal by using multiple bands,
wherein the control circuit controls the transceiver to transmit in a first band of the multiple bands, after a transmission right has been acquired in the first band and before a transmission right is acquired in a second band of the multiple bands, a first signal that includes a data frame containing information regarding the transmission right of the second band,
wherein the control circuit transmits the first signal based on time required to acquire the transmission right in the second band, and
wherein the control circuit performs control such that:
the data frame is transmitted as the first signal in a case where the time required to acquire the transmission right in the second band is equal to or longer than a time required to transmit a minimum unit of decodable data, or
a request to send (RTS) frame is transmitted as the first signal in a case where the time required to acquire the transmission right in the second band is equal to or longer than a time required to carry out an exchange of the RTS frame and a clear to send (CTS) frame, or
the CTS frame is transmitted as the first signal in a case where the time required to acquire the transmission right in the second band is shorter than a time required to carry out the exchange of the RTS frame and the CTS frame but is equal to or longer than a time required to transmit the CTS frame, or
a busy tone is transmitted as the first signal in a case where the time required to acquire the transmission right in the second band is shorter than a time required to transmit the CTS frame.