Lg Electronics Inc.

Samsung Electronics Co., Ltd.

Lg Display Co., Ltd.

Other

Sungjin Park

Jinsoo Choi

Jinmin Kim

Jeongki Kim

Insun Jang

Taewon Song

Suhwook Kim

Hangyu Cho

Namyeong Kim

Kyungtae Jo

Sunwoong Yun

Kiseon Ryu

Eunsung Park

Changbong Shin

JongIn Lee

Hwanjoon Choi

Hwankuk Yuh

Yonghan Lee

Jiyen Son

Miyeon Seo

GyuHo Lee

Sangdae Park

Suk Ho Choi

Sanggook Kim

Byungjoon Rhee

Sunhee Baek

Saehee Bang

Sangwoon Lee

Sinchul Kang

Sunju Lee

Kiwan Kim

Jinhyoun Joe

Jaegwang Um

Jaewoo Jeong

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

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 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

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.

Reuse of space in multi-ap system

According to various embodiments, a multi-link device (MLD) may transmit, to an access point (AP), a request frame for activating a power saving mechanism (PSM). The multi-link device may receive a response frame for activating the PSM. The multi-link device may activate the PSM in at least one of a first link or the second link on the basis of the response frame.

Technique for performing multi-link communication in wireless communication system

According to various embodiments, a multi-link device (MLD) including a first STA and a second STA can receive a DL PPDU through a first link. The multi-link device can set the state of the second STA to be a doze state during the duration of the DL PPDU. The multi-link device can transmit an ACK frame through the first link in response to the DL PPDU. The multilink device can set the state of the second STA to be an awake state during the duration of the ACK frame.

Technique for performing multilink communication in wireless communication system

According to various embodiments, a multi-link device (MLD) may transmit, to an AP, a request frame for changing a primary link. On the basis of the request frame, the MLD may receive a response frame from the AP. On the basis of the response frame, the MLD may determine whether to change the primary link.

Method for performing multi-link communication in wireless communication system

According to various embodiments, a multi-link device (MLD) operating in a plurality of links may transmit a first request frame for requesting information on the plurality of links. The multi-link device may receive a first response frame on the basis of the first request frame. The first response frame may include information on a ratio of stations (STAs) using a first link as an anchor link, and information on a ratio of STAs using a second link as an anchor link.

In a wireless local area network (LAN) system, a shared AP may determine PPDU transmission power to be transmitted to an STA on the basis of an ARIL of the STA, transmission power of a signal transmitted to the STA by a sharing AP, and an RSSI of a signal received from the sharing AP by the STA.

Transmission power in multi-AP transmission using space reuse

In a wireless local area network (WLAN) system, an STA performs CCA on resources allocated thereto via a trigger frame from an AP and can transmit a TB PPDU via an idle channel among the allocated resources on the basis of the result of the CCA, wherein the PHY of the TB PPDU may include information about the result of the CCA.

Trigger-based data transmission

An AP and a STA can perform a PHY-level HARQ operation in a wireless local area network system, and the AP can transmit resource allocation information about a PHY-level feedback frame to be transmitted by a plurality of STAs. The AP can receive a plurality of HARQ feedback frames from a plurality of STAs. The plurality of HARQ feedback frames are PHY layer signals. The resource allocation information can include information related to a tone set and a symbol from which transmission of the plurality of HARQ feedback frames are started.

HARQ operations at PHY layer level

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.

Shared AP selection in multi-AP system

According to various embodiments, a multi-link device including a first STA and a second STA may receive, via the first STA, at least one PPDU within a transmission opportunity (TXOP) configured in a first link. While the at least one PPDU is received, the state of the second STA may be set to a doze state. The multi-link device may receive, via the first STA, a first control frame for the truncation of the TXOP. The multi-link device may change the state of the second STA from the doze state to an awake state on the basis of the first control frame.

According to various embodiments, a multi-link device including a first STA and a second STA may receive a first PPDU by means of the first STA. The PPDU may include information about traffic buffered in the second STA operating in a second link. In response to the first PPDU, the multi-link device may change the second STA from a doze state to an awake state, and transmit information about the state of the second STA by means of the second STA.

Discussed is a display device using a semiconductor light emitting diode disposed on a substrate, a planarization layer stacked on the substrate while defining a hole that is a region in which the semiconductor light emitting diode is disposed, a light-transmitting layer filling the hole, and a reflective layer formed along at least one surface of the substrate and the planarization layer defining an inner surface of the hole, wherein the hole is formed so that a width thereof expands as a distance from the substrate increases.

Growing community of inventors

Seoul, South Korea

Sungjin Park