Lg Electronics Inc.

Insun Jang

Jinsoo Choi

Jeongki Kim

Taewon Song

Namyeong Kim

Suhwook Kim

Dongguk Lim

Eunsung Park

Sunhee Baek

Kiseon Ryu

Sanggook Kim

Jiin Kim

Jinmin Kim

Jinyoung Chun

In a wireless local area network (WLAN) system, an AP multi-link device (MLD) may estimate an uplink transmission time of a non-simultaneous transmit and receive (STR) station (STA) MLD, and on the basis of the time estimation, uplink transmission and downlink transmission in links of the non-STR STA MLD may not overlap.

Method and device for multi-link EDCA information sharing

In a wireless local area network system, a transmission MLD may comprise a first station (STA) and a second STA, wherein the first STA operates on a first link and the second STA operates on a second link. The transmission MLD may transmit, to a reception MLD, capability information regarding whether power saving is supported. The power saving may be performed by one method among first to third power saving methods. The transmission MLD may transmit, to the reception MLD, a control frame comprising method information regarding which method among the first to third power saving methods is to be used.

Power saving in NSTR environment

The present specification proposes NDPA frame formats supported in a next generation wireless LAN system. According to one embodiment of the present specification, the NDPA frame formats may include common information for sensing. Here, the common information may be included in a special user information field. According to another embodiment of the present specification, the NDPA frame formats may use an existing NDPA frame format.

Enhanced NDPA frame for sensing

The present invention relates to a method performed by a shared AP in a wireless LAN system, the method comprising the steps of: allocating a first channel to first and second stations (STAs), wherein the shared AP is associated with the first and second STAs; receiving, from a sharing AP, an allocation of a second channel for transmission of coordinated orthogonal frequency division multiplexing access (C-OFDMA); and transmitting a channel switching signal that requests channel switching from the first channel to the second channel, wherein the channel switching signal is only transmitted to the first STA participating in the C-OFDMA, but not to the second STA not participating in the C-OFDMA.

Channel switching for C-OFDMA transmission in multi-AP system

The present disclosure relates to a method for a hybrid automatic repeat request (HARQ) operation at a physical (PHY) layer level in a wireless local area network (LAN) system or an apparatus for performing same. The method is characterized in receiving, from a transmitting station (STA), a physical protocol data unit (PPDU) including a receiver identifier (ID) which is a physical (PHY) layer signal, performing an error check on the PPDU, based on the error check, transmitting an HARQ feedback frame which is a PHY layer signal, and receiving a retransmission PPDU.

HARQ operation at PHY layer level

According to various embodiments, a multi-link device operating in a plurality of links can transmit, via a first link, a request frame for changing the first link from among the plurality of links to a second link not included in the plurality of links. The multi-link device can receive a response frame via the first link on the basis of the request frame. The multi-link device can change the first link to the second link on the basis of the response frame.

Technique for performing multi-link communication in wireless communication system

A method performed at a sharing access point (AP) of a wireless local area network (LAN) system may comprise the steps of: transmitting, to a first station (STA), a first measurement notification frame requesting measurement of a received signal strength indicator (RSSI); transmitting, to the first STA, a first measurement request frame for requesting a first path loss value which is path loss information of an overlapping basic service set (OBSS) AP and the first STA and an acceptable receiver interference level (ARIL) value; receiving, from the first STA, a first measurement report frame including the first path loss and a first ARIL value of the first STA; and transmitting, to the first STA, first data.

Measurement for space reuse in multi-AP system

Proposed are a method and an apparatus for receiving an MAC address of another STA within a reception MLD in a wireless LAN system. Specifically, the reception MLD receives an ML element from a transmission MLD through a first link. The reception MLD decodes the ML element. The ML element includes common information and link information. The link information includes a profile field of the second transmission STA. The profile field of the second transmission STA includes first information relating to whether an MAC address of the second transmission STA exists. If the first information is configured to be 1, the profile field of the second transmission STA includes the MAC address of the second transmission STA.

Method and apparatus for receiving MAC address of another STA within reception MLD in wireless LAN system

The present disclosure relates to a method performed by a non-access point (AP) station (STA) multi-link device (MLD) of a wireless LAN system, the method comprising the steps of: transmitting, through a first link, a negotiation frame including first maximum number of spatial stream (NSS) information to an AP MLD; and receiving a negotiation response frame from the AP MLD through the first link.

Transmission of capability information about link

In a wireless local area network (LAN) system, a sensing session comprises a first burst and a second burst, wherein, in the first burst, a transmitting STA may transmit a first sounding signal to a first receiving STA and a second receiving STA. In the first burst, the transmitting STA may receive, from the first receiving STA, a first feedback frame comprising first channel information between the transmitting STA and the first receiving STA, and, from the second receiving STA, a second feedback frame comprising channel information between the transmitting STA and the second receiving STA. In the second burst, the transmitting STA may receive a second sounding signal from the first receiving STA. In the second burst, the transmitting STA may receive, from the second receiving STA, a third feedback frame comprising channel information between the first receiving STA and the second receiving STA.

Method and device for carrying out sensing in wireless LAN system

In a wireless local area network (LAN) system, a transmission MLD may include a first station (STA) and a second STA, which operate in a first link and a second link, respectively. The transmission MLD may transmit, to a reception MLD, a connection request frame including capability information related to whether a restricted basic service set (BSS) mode is supported and information related to use of the restricted BSS mode. The information related to the use of the restricted BSS mode may include first information related to an STA (among STAs in the transmission MLD) which operating in the restricted BSS mode, in which monitoring for signal reception (by the STA operating in the restricted BSS from an STA not operating in the restricted BSS mode) is performed based on acquisition of information indicating reception of a signal. The transmission MLD may receive a connection response frame from the reception MLD.

Dynamic configuration of multi-link function in wireless LAN system

In a Wireless Local Area Network system, a reception device can receive information about link deactivation, and deactivate a link. The proposed method includes receiving a physical protocol data unit (PPDU) including a first control field in a first link. In the method, the first control field may include information related to disablement of the first link and information on a time point at which the first link is disabled. The proposed method further includes disabling the first link based on the first control field.

Link deactivation in multi-link

Proposed are a method and a device for requesting partial information on APs in a transmission MLD in a WLAN system. Specifically, a receiving MLD transmits a probe request frame to a transmission MLD through a first link. The receiving MLD receives a probe response frame from the transmission MLD through the first link. The probe request frame includes a profile field of the second receiving STA. The profile field of the second receiving STA includes a first full information profile subfield. When the first receiving STA requests partial information on the second link, the value of the first full information profile subfield is set to 0, and the profile field of the second receiving STA further includes a first request element. The partial information on the second link is requested on the basis of the first request element.

Method and device for requesting partial information on APs in transmission MLD in wireless LAN system

Proposed are a method and a device for receiving significant update information regarding a specific AP via a management frame in a WLAN system. Specifically, a reception MLD receives a management frame from a transmission MLD via a first link. The reception MLD decodes the management frame. The management frame includes a notification method mode field. If a significant update on a second transmission STA occurs, a value of the notification method mode field is set to 1, and the management frame includes significant update information of the second transmission STA.

Method and device for transmitting and receiving significant update information regarding specific AP via management frame in wireless LAN system

A method performed by a sharing access point (AP) of a wireless local area network (LAN) system may comprise the steps of: transmitting, to a shared AP, a first station (STA) list and a first measurement notification frame which requests measurement of received signal strength indicators (RSSIs) of signals transmitted from first STAs included in the first STA list; transmitting, to each of the first STAs, a request frame which requests information related to transmission power of the signals transmitted by the first STAs; receiving a report frame including the information related to the transmission power from each of the first STAs; transmitting a multi-AP transmission trigger frame to the shared AP; and transmitting data to each of the first STAs.

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Seoul, South Korea

Insun Jang