CPC H04W 76/15 (2018.02) [H04L 1/1896 (2013.01); H04W 74/0816 (2013.01); H04W 84/12 (2013.01)] | 10 Claims |
1. A method in a wireless local area network (WLAN) system, comprising:
transmitting, by a station (STA), a Probe Request frame comprising capability information,
wherein the capability information comprises identification information of a plurality of links supported by the STA and 6 GHz capability information related to whether the STA supports a 6 GHz link;
obtaining, by the STA, a transmission opportunity (TXOP) for a pre-defined link which is different from the 6 GHz link;
transmitting, by the STA, a physical protocol data unit (PPDU) through the pre-defined link;
receiving, by the STA, an ACKnowledgement (ACK) frame for the PPDU through the pre-defined link;
determining, by the STA, whether a backoff counter (BC) value of the 6 GHz link reaches zero after receiving the ACK frame;
determining, by the STA, whether the 6 GHz link is maintained to be idle for a pre-defined time period after the BC value of the 6 GHz link reaches zero;
aggregating, by the STA, the pre-defined link and the 6 GHz link based on the determination; and
transmitting, by the STA, a packet through the aggregated links.
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