US 2026/0040353 A1Published application

Method and apparatus for str in wireless lan that supports multi-links

AssigneesElectronics and Telecommunications Research Institute, Korea National University of Transportation Industry-Academic Cooperation Foundation

InventorsSung Hyun HWANG, Kyu Min KANG, Jae Cheol PARK, Jin Hyung OH, Dong Woo LIM, Su Na CHOI, Yong Ho KIM, Han Seul HONG

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Abstract

A method and an apparatus for STR in a wireless LAN that supports multi-links are disclosed. An operating method of a first communication node comprises the steps of: transmitting a first frame to a second communication node through a first link from among multi-links; receiving, from the second communication node, a response frame for the first frame through the first link; checking a channel occupancy time in a second link from among the multi-links on the basis of first information included in the response frame; and performing a sensing operation in a preset section after the end of the channel occupancy time in the second link.

Claims14

Dependent claims

A method of a first device supporting multi-link, comprising:

transmitting a first frame using a first link among the multi-link;
determining a blindness period on a second link among the multi-link during a time period of transmitting the first frame, wherein the blindness period is a period when a virtual carrier sensing is impossible;
performing a carrier sensing operation in a first period on a second link among the multi-link based on the transmission of the first frame being completed;
receiving a second frame indicating a transmission time on the second link through one link among the multi-link from a second device;
and
initiating a transmission operation of a third frame on the second link at the transmission time,
wherein a transmission operation on the first link and a reception operation on the second link are not simultaneously performed.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 19/358,365Filed 14 Oct 2025
Priority: KR 10-2020-000484114 Jan 2020
Published: 5 Feb 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

H04W 74/0808
Non-scheduled access, e.g. ALOHA: using carrier sensing, e.g. carrier sense multiple access [CSMA]
H04W 76/15
Connection setup: setup of multiple wireless link connections
H04W 76/27
Manipulation of established connections: transitions between radio resource control [RRC] states
H04W 84/12
Small scale networks; Flat hierarchical networks: wLAN [Wireless Local Area Networks]

Family

Application17/792,692Continuation
Application19/358,365Continuation
US 12,471,137 B2Related patent
US 2023/0040910 A1Published application
US 2026/0040353 A1This patent

From the US filing history. Foreign family members aren’t listed.

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