Patent ID: 9577744
Date: 2017-02-21
CPC Classifications: H04B,H04W

Claim:
1. A method for transmitting, by an access point (AP), a frame in a wireless local area network system, the method comprising: receiving, from a station (STA) requesting a group Association Identifier (AID), an AID request frame; transmitting, to the STA, an AID response frame as a response to the AID request frame; generating a Medium Access Control (MAC) frame including an indication field, a first address field, and a second address field; generating a Physical layer convergence procedure Protocol Data Unit (PPDU) including a signal field and the MAC frame; and transmitting the PPDU to the STA, wherein the AID request frame includes group address information associated with a STA group that includes the STA, wherein the AID response frame includes the group AID corresponding to the group address information, and wherein if the indication field indicates a downlink transmission of the MAC frame, the first address field includes the group AID and the second address field includes a MAC address of the AP.