Patent ID: 11930511
Assignee: SONY GROUP CORPORATION
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 4:
5. A wireless communication apparatus serving as a station (STA) of a first wireless local area network (WLAN), the wireless communication apparatus comprising:
a transceiver; and
control circuitry configured to:
detect a transmission from a device of a second WLAN different from the first WLAN, the detected transmission corresponding to a channel used in an Overlap Basic Service Set (OBSS) of the second WLAN;
generate a first channel notification signal including information regarding the channel used in the OBSS of the second WLAN;
transmit the first channel notification signal to an access point (AP) of the first WLAN;
receive a second channel notification signal from the AP of the first WLAN, the second channel notification signal including information regarding a frequency band of a channel of a Basic Service Set (BSS) to be used in the first WLAN, the frequency band of the channel of the BSS determined by the AP based on the information regarding the channel used in the OBSS in the second WLAN;
transmit a response to the second channel notification signal to the AP in the first WLAN; and
communicate with other devices of the first WLAN in accordance with the BSS, wherein
the first channel notification signal includes:
a first announce type indicating that the information regarding the channel used in the OBSS was received by the STA from a STA in the second WLAN, or
a second announce type, different from the first announce type, indicating that the information regarding the channel used in the OBSS was received by the STA from an AP in the second WLAN,

the second channel notification signal includes a third announce type, different from the first and second announce types, indicating that the second channel notification signal is related to channel usage in the first WLAN,
the response includes a fourth announce type, different from the first, second and third announce types, indicating that the STA in the first WLAN has assigned one or more frequencies according to the BSS,
the information regarding the channel used in the OBSS comprises:
first information regarding a primary channel used in the OBSS, and
second information regarding at least one secondary channel used in the OBSS, and

the determined frequency band comprises:
a frequency band of a primary channel of the BSS that is farthest, in terms of frequency, from a frequency band of the primary channel used in the OBSS, and
a frequency band of at least one secondary channel of the BSS.