Apparatus and method for controlling slot usage
AssigneeElectronics and Telecommunications Research Institute
InventorsHyoung Jin Kwon, Jae Seung Lee, Min Ho Cheong, Hee Jung Yu, Jae Woo Park, Sok Kyu Lee
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Abstract
Provided is slot use control apparatus and method, including an access point (AP) to control a slotted channel access of a station (STA) in a wireless local area network (WLAN) includes generating a synchronization (synch) frame including an identification value indicating an STA allocated to a slot, and broadcasting the generated synch frame when a channel is in an idle state at a start point of the slot.
Claims13
A method for an access point (AP) to provide synchronization to a station (STA) in a wireless local area network (WLAN), the method comprising:
- transmitting a synchronization frame including a receiver address (RA) field including an identification value indicating a STA;
- after transmitting the synchronization frame, waiting for a response waiting time;
- and
- when a response frame in response to the synchronization frame is not received during the response waiting time, transmitting a contention free-end (CF-End) frame,
- wherein the CF-End frame is transmitted by the AP to reset a network allocation vector (NAV), and
- wherein the synchronization frame is distinguished from a beacon frame, and is transmitted between beacon frames.
An apparatus for an access point (AP) to provide synchronization to a station (STA) in a wireless local area network (WLAN), the apparatus comprising:
- a generator configured to generate a synchronization frame including a receiver address (RA) field including an identification value indicating a STA;
- and
- a transmitter configured to transmit the synchronization frame,
- wherein, after transmitting the synchronization frame, the apparatus waits for a response waiting time,
- wherein the transmitter is configured to further transmit a contention free-end (CF-End) frame when a response frame in response to the synchronization frame is not received during the response waiting time,
- wherein the CF-End frame is transmitted by the AP to reset a network allocation vector (NAV), and
- wherein the synchronization frame is distinguished from a beacon frame, and is transmitted between beacon frames.
Dependencies are inferred from the claim text.