Patent ID: 11140629

Abstract:
A method for power management in a wireless LAN system, according to one embodiment of the present specification, comprises the steps of: transmitting a first wake-up packet for a first WUR terminal and a second WUR terminal, wherein the first wake-up packet instructs a first main radio module and a second main radio module to enter into an activation state, and the first wake-up packet includes a first payload, which is modulated according to an On-Off Keying (OOK) method for the first WUR module, and a second payload, which is modulated according to the OOK method for the second WUR module; transmitting a plurality of downlink packets for the first WUR terminal and the second WUR terminal when a preset guard time has elapsed; determining whether at least one acknowledgement packet is received from the first WUR terminal and the second WUR terminal in response to a plurality of downlink packets within a preset retransmission time limit; and transmitting a second wake-up packet according to the determination.