Abstract:
The present invention relates to a wireless communication system, and more specifically, disclosed are a method and an apparatus for accessing a channel in a WLAN system. A method for accessing the channel from a station (STA) in the wireless communication system, according to one embodiment of the present invention, comprises receiving from an access point (AP) setting information of a time window, which does not allow channel access of the STA in a traffic indication map (TIM) mode and which is repeatedly set in a cyclic manner; and carrying out the channel access on the basis of the time window, wherein the setting information includes starting point information of a specific time window and cycle information of the time window, wherein the time window is repeatedly set for every cycle that is indicated by the cycle information of the time window.
Abstract:
The present invention relates to a method for transmitting data units in wireless LAN systems. The method includes the steps of generating a short training field (STF) for a first channel, generating a long training field (LTF) for the first channel, duplicating the STF on at least one second channel, duplicating the LTF on at least one second channel, transmitting the STF and the one or more duplicated STFs through a transmission channel, transmitting the LTF and the one or more duplicated LTFs through the transmission channel, and transmitting a data field through the transmission channel.
Abstract:
A wireless communication system using pilot subcarrier allocation and a method of allocating the pilot subcarriers for use in downlink and uplink communication in a multiple-input multiple-output (MIMO) antenna system using orthogonal frequency division multiplexing (OFDM) modulation are disclosed. The method includes providing a frame structure comprising OFDM symbols in time domain and subcarriers in frequency domain and alternately allocating first pilot subcarriers for a first antenna and second pilot subcarriers for a second antenna in the time and frequency domains, wherein each of the alternating first pilot subcarriers and the second pilot subcarriers is separated by a multiple of 9 subcarriers in the frequency domain and further allocated in two contiguous OFDM symbols.
Abstract:
In a wireless local area network (LAN) system, a sharing access point (AP): receives, from a first AP, basic service set (BSS) information of the first AP; receives, from a second AP, BSS information of the second AP; receives, from a station (STA), a link report signal including link quality information about the link between the first AP and the STA and link quality information about the link between the second AP and the STA; and selects the first AP as a shared AP on the basis of first and second capability information and the link quality information.
Abstract:
Proposed are a method and a device for requesting partial information from APs within a transmission MLD in a WLAN system. Particularly, a reception MLD transmits a probe request frame to a transmission MLD via a first link. The reception MLD receives a probe response frame from the transmission MLD via the first link. When the partial information regarding the first link and the partial information regarding the second link are the same, the partial information regarding the second link is requested on the basis of the first request element, and a value of a first full information profile sub-field is set to 0.
Abstract:
Disclosed are a method and an apparatus for accessing a channel in a wireless LAN system. A method performed by a station (STA) in a wireless LAN system according to an embodiment of the present disclosure may comprise the steps of: receiving information related to a restricted-target wake time (R-TWT) service period (SP) from an access point (AP); and setting at least one R-TWT traffic identifier (TID) for the R-TWT SP. Here, whether to perform a back-off operation for an access category (AC) in the R-TWT SP may be determined on the basis of a mapping relationship between the at least one R-TWT TID and the AC.
Abstract:
In a wireless local area network system, a station (STA) can transmit a first physical protocol data unit (PPDU) including a link adaptation control field. The link adaptation control field can include a bit indicating whether the link adaptation control field includes information related to low-latency traffic. The low-latency traffic can require a latency of less than or equal to a threshold value. The STA can be allocated resources for the low-latency traffic. The STA can transmit a second PPDU including the low-latency traffic through the resources.
Abstract:
Proposed are a method and apparatus for performing sensing in a wireless LAN system. In detail, a first STA broadcasts a sensing request frame. The first STA receives a first sensing response frame form a second STA and receives a second sensing response frame from a third STA. The sensing request frame includes STA identifier information and RU allocation information. The STA identifier information includes identifiers of the second and third STAs. The RU allocation information includes information about a first RU allocated to the second STA and information about a second RU allocated to the third STA. The first sensing response frame is received through the first RU. The second sensing response frame is received through the second RU.
Abstract:
In a wireless local area network system, a receiving device may receive a Block Acknowledgment Request (BAR) frame including information related to a link for which an ACK is requested, and transmit a Block ACK (BA) frame on the basis of the BAR frame. The receiving device is a Multi-Link Device (MLD), which supports communication over multiple links. Each link of the multiple links can be configured based on 2.4 GHz band, 5 GHz band, and/or 6 GHz band defined in a conventional wireless local area network system.
Abstract:
One embodiment according to the present specification relates to a technique for transmitting information related to a packet extension field in a wireless LAN (WLAN) system. An NGV PPDU can include at least one midamble and a packet extension field set on the basis of the at least one midamble. For example, a duration related to the packet extension field can be set on the basis of the number of the at least one midamble. A preamble of the NGV PPDU can include information related to a packet extension field.