摘要 |
A method implemented by an Access Point (AP) in a Wireless Local Area Network (WLAN). The method includes providing, by the AP, a first Media Access Control (MAC) Protocol Data Unit (MPDU) in a downlink frame, where the first MPDU is addressed to a first set of stations and the first MPDU includes first trigger information for scheduling an uplink transmission, providing, by the AP, a second MPDU in the downlink frame, where the second MPDU is addressed to a second set of stations and the second MPDU includes second trigger information for scheduling the uplink transmission and the second trigger information includes a second set of values that are set to be the same as a first set of values in the first trigger information, and transmitting, by the AP, the downlink frame to the first and second set of stations. |