Method and apparatus for efficient addressing and power savings in wireless communications

A method performed by a station (STA), the method comprising:

• receiving, from an access point (AP), a management frame that includes an indication of a group to which the STA is assigned;
• receiving a frame from the AP, wherein the frame comprises a data packet and a group identifier;
• determining whether the group identifier received in the frame corresponds to the indication of a group to which the STA is assigned;
• and
• entering a power saving mode on a condition that the group identifier received in the frame does not correspond to the indication of a group to which the STA is assigned.

An access point (AP) comprising:

• a receiver configured to receive capability information from a station (STA), wherein the first information indicates that the STA is power saving group capable;
• a processor configured to assign the STA to a group for power saving;
• a transmitter configured to transmit, to the STA, a management frame that includes an indication of the group to which the STA is assigned;
• and
• the transmitter configured to transmit, to the STA, a frame including a data packet and a group identifier to enable the STA to enter a power save mode on a condition that data packet is not intended for the group.