CPC H04W 72/20 (2023.01) [H04L 1/18 (2013.01); H04L 5/0055 (2013.01); H04W 28/04 (2013.01); H04W 76/11 (2018.02); H04W 76/15 (2018.02); H04W 84/12 (2013.01)] | 12 Claims |
1. A method in a Wireless Local Area Network (LAN) system, the method comprising:
confirming, by a first station (STA), a delivery failure of a first acknowledgment (ACK) signal for a first frame received through a first link;
transmitting, by the first STA to a second STA, report information related to the delivery failure of the first ACK signal through a second link, wherein the report information includes identification information related to the first link;
receiving, by the first STA, a second frame from the second STA through the first link; and
transmitting, by the first STA to the second STA, a second ACK signal for the second frame in a narrowband through the first link,
wherein the report information includes narrowband resource unit (RU) allocation request information.
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