MULTILINK DEVICES AND METHODS FOR PERFORMING UPLINK TRANSMISSIONS BY MULTILINK DEVICES

Abstract

The invention relates to a method for transmitting and receiving data in a non-access point (AP) multi-link device of a wireless communication system. A non-AP MLD can perform a wait-to-transmit procedure to perform simultaneous transmission through the multi-link of the non-AP MLD, and simultaneously perform uplink transmission to an AP MLD through each of the first and second links included in the multi-link. Here, when both the first wait-to-transmit counter and the second wait-to-transmit counter have a value of “0”, if the transmission time of the uplink transmission in the first link is the boundary of the first slot which is the slot adjacent to the slot in which the first wait-to-transmit counter is “0”, the uplink transmission in the second link may be performed within a predetermined time from the transmission time of the first link.