Patent ID: 8774140

Claim:
A method of transmitting in an Extending Service Set (ESS) which includes a first Basic Service Set (BSS) with a hidden node and a second BSS, the method comprising: receiving a request from a remote station to schedule a time frame for transmitting one or more data frames to the remote station of said first BSS without interfering with transmissions of one or more stations of the second BSS, the received request being generated by the remote station detecting the hidden node as the remote station searched its position relative to another station and observed excessive collision of transmissions of the one or more stations of the first BSS, the hidden node comprising a station other than the remote station; sending a self clear-to-send (CTS) request to close vicinity stations of the first BSS to prevent transmission by the close vicinity stations; and transmitting the one or more data frames to the remote station using an antenna beam forming technique at the scheduled time frame.