Abstract:
Disclosed are a method and a device for receiving a frame. A method for receiving a frame in a wireless LAN comprises the steps of: an AP transmitting an uplink transmission scheduling frame to a plurality of STAs; the AP receiving, as a response to the uplink transmission scheduling frame, a sync PPDU from each STA; the AP transmitting to the plurality of STAs an adjustment frame comprising adjustment information determined on the basis of the sync PPDU; the AP receiving, on overlapped time resources, an uplink frame transmitted on the basis of the adjustment information by means of each STA; and the AP transmitting to each STA an ACK frame with respect to the uplink frame.
Abstract:
A method and device for receiving a frame are disclosed. The method for receiving a frame over a wireless LAN may include: transmitting, by an access point (AP), an uplink transmission scheduling frame to a plurality of stations (STA); receiving, by the AP, a sync PPDU in response to the uplink transmission scheduling frame from each of the plurality of STAs; transmitting, by the AP, an adjustment frame, including adjustment information determined based on the sync PPDU, to the plurality of STAs; receiving, by the AP, the uplink frame transmitted based on the adjustment information by each of the plurality of STAs over an overlap time resource; and transmitting, by the AP, an ACK frame of the uplink frame to each of the plurality of STAs.
Abstract:
An ACK signal processing method that can be used in a wireless LAN system is proposed. Various information that can be used for a downlink MU PPDU for multiple receiving stations may be proposed, and, for example, in order to omit the re-transmission of the related art, information requesting an ACK or Block ACK corresponding to previously transmitted data may be included. If an immediate acknowledgement (ACK) frame fails to be received after the MU-PPDU is transmitted from the AP, a Block ACK may be requested. In this case, while a Block ACK is requested, a radio resource through which a Block ACK is delivered may be allocated.
Abstract:
The present document relates to a method for determining whether a corresponding medium (for example, a channel) is reusable so as to improve a space reuse rate in a wireless communication system, particularly, a wireless LAN system, and an apparatus for the same. To this end, a station receives a wireless LAN signal through a specific wireless medium, compares the received signal intensity of the wireless LAN signal with a CCA level selected from between a first CCA level and a second CCA level lower than the first CCA level according to the type of the received wireless LAN signal, determines that the corresponding wireless medium is usable if the received signal intensity is lower than the selected CCA level, and can use the wireless medium in a signal transmission.
Abstract:
A power save mode-based operation method and device in a wireless LAN are disclosed. The power save mode-based operation method and device in a wireless LAN can comprise the steps of: transmitting, by an STA, a first trigger frame to an AP in a first service interval; receiving, by the STA, a downlink frame transmitted by the AP on the basis of the first trigger frame in the first service interval; receiving, by the STA, traffic indication information from the AP in a second service interval after reception of the downlink frame; determining, by the STA, whether a pending downlink frame of the AP exists on the basis of the traffic indication information in the second service interval; and determining, by the STA, a mode for saving power on the basis of whether the pending downlink frame exists.
Abstract:
Disclosed are a method and an apparatus for operating based on a power save mode in a wireless LAN. The method for operating based on the power save mode in a wireless LAN may comprise the steps of: an AP receiving, from a first STA, a first trigger frame for triggering the transmission of first downlink data which has been buffered for the first STA; the AP determining a temporary halt of the transmission the first downlink data, which is transmitted as a response to the first trigger frame, based on a first priority rank of the first downlink data which has been buffered for the first STA, a second priority rank of second downlink data which has been buffered for a second STA, and a point when the second STA is switched to an awake state; and the AP transmitting, to the first STA, a temporary halt setting frame for indicating the temporary halt.
Abstract:
A method for transmitting a signal by a neighbor awareness networking (NAN) terminal in a wireless communication system, according to embodiment of the present invention, comprises the steps of: sensing a medium in a discovery window; selecting a back-off count value when the medium is in an occupied state; and transmitting a service discovery frame after performing countdown on the basis of the back-off count value, wherein an interval in which the back-off count value is determined on the basis of at least one of an interval in which a back-off count value for transmitting a synchronization beacon frame is selected, the length of the discovery window, and a hop count value of the terminal.
Abstract:
A method and a device for receiving a multicast frame in a wireless LAN are disclosed. The method for receiving a multicast frame in a wireless LAN comprises the steps of: combining, by an STA, an AP on the basis of an initial access frame transmitted by the AP through a primary channel; setting, by the STA, an operating channel as an exclusive multicast channel on a first time resource, wherein the first time resource and the primary channel are indicated on the basis of the initial access frame; receiving, by the STA, the multicast frame from the AP through the exclusive multicast channel on the first time resource; setting, by the STA, the operating channel as the primary channel on a second time resource; and receiving, by the STA, a unicast frame from the AP through the primary channel on the second time resource.
Abstract:
A method for transmitting data in a wireless LAN may comprise the steps of: receiving a non-target clear to send (CTS) frame from a second station (STA) by a first STA; transmitting a request to send (RTS) frame to a first access point (AP) coupled with the first STA within a network allocation vector (NAV) interval configured on the basis of the non-target CTS frame by the first STA; receiving a CTS frame in response to the RTS frame from the first AP by the first STA; and transmitting a first data frame to the first AP by the first STA.
Abstract:
The present invention relates to a Method for a device-to-device (D2D) communication in a wireless communication system. Specifically, when a terminal, which is performing a device-to-device communication while performing channel hopping, additionally performs the device-to-device communication with a new terminal, a channel hopping period of the existing device to device communication is configured by same time intervals for channels and one time interval among the same time intervals is configured to be identical to a channel hopping period for discovering a new terminal.