Method for power save mode operation in wireless local area network and apparatus for the same

摘要

A method for a power save mode operation in a wireless local area network (WLAN) system is provided. The method comprising determining a type of a receiving station (STA) indicator on the basis of the number of STAs which are associated with the AP and which intend to transmit buffered traffic; generating a traffic indicator map (TIM) element including information which indicates the receiving STA indicator and the type of the receiving STA indicator, transmitting the TIM element, receiving a poll frame for requesting data frame transmission from one STA among the STAs and transmitting the data frame to the STA.

主权项

1. A traffic indication method in a wireless local area network, the method comprising:
receiving, by a station, from an access point (AP), a beacon frame including a traffic indication map (TIM) element, the TIM element including a type indication field and a traffic indication field; and determining, by the station, whether there is buffered traffic for the station at the AP based on the TIM element, wherein if the type indication field is set to a first value, the traffic indication field includes an association identifier (AID) corresponding to the station if the AP has buffered traffic for the station, and wherein if the type indication field is set to a second value, the traffic indication field includes a bitmap including a plurality of bits, wherein one of the plurality of bits corresponds to the station and the value of said one bit indicates whether there is buffered traffic for the station at the AP.