Abstract: A wireless communicating method includes: transmitting a querying signal to at least one access point (AP) to request at least one key cache stored in the at least one AP, wherein one of the at least one APs has established a connection with a station; and receiving said at least one key cache from the at least one AP.

Abstract: A method for a wireless device is disclosed. The wireless device includes a plurality of antennas. The method includes the steps of transmitting a first packet to a first client and receiving a response from the first client. The wireless device then determines a first set of the plurality of antennas for the first client according to a statistic obtained from the response. Then, the wireless device transmits a packet to a first client using the first set of the plurality of antennas.

Abstract: A transmission method for a wireless device is disclosed. The wireless device has a plurality of antennas. The transmission method includes determining a first set of the plurality of antennas, determining a second set of the plurality of antennas, transmitting a packet to a first client using the first set of the plurality of antennas; and transmitting a packet to a second client using the second set of the plurality of antennas.